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  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Ground based in situ observations of online_gc at Cape Verde Atmospheric Observatory (CV0001G)" />
  <attribute name="keywords" value="mole_fraction_of_propane_in_air, mass_concentration_of_isoprene_in_air, propane, air, mole_fraction_of_isoprene_in_air, mole_fraction_of_2_methylbutane_in_air, mole_fraction_of_butane_in_air, mole_fraction_of_ethane_in_air, n-pentane, ethene, Cape Verde Atmospheric Observatory, GAW-WDCRG, propene, toluene, mole_fraction_of_2_methylpropane_in_air, isoprene, n-butane, mass_concentration_of_2-methylbutane_in_air, mass_concentration_of_n-pentane_in_air, CV0001G, ACTRIS, mole_fraction_of_benzene_in_air, 2-methylbutane, 2-methylpropane, EMEP, mole_fraction_of_ethene_in_air, mass_concentration_of_n-butane_in_air, ethane, mole_fraction_of_ethyne_in_air, ethyne, mole_fraction_of_toluene_in_air, benzene, mole_fraction_of_pentane_in_air, mole_fraction_of_propene_in_air" />
  <attribute name="id" value="TWXC-URU2.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, EMEP, GAW-WDCRG" />
  <attribute name="acknowledgement" value="Request acknowledgement details from data originator" />
  <attribute name="doi" value="https://doi.org/10.48597/TWXC-URU2" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Shalini Punjabi, Lucy Carpenter, Shalini Punjabi, Lucy Carpenter, Shalini Punjabi, Lucy Carpenter, Shalini Punjabi, Lucy Carpenter, 2-methylbutane, 2-methylpropane, benzene, ethane, ethene, ethyne, isoprene, n-butane, n-pentane, propane, propene, toluene - online_gc at Cape Verde Atmospheric Observatory, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/TWXC-URU2" />
  <attribute name="summary" value="Ground based in situ observations of online_gc at Cape Verde Atmospheric Observatory (CV0001G). These measurements are gathered as a part of the following projects ACTRIS, EMEP, GAW-WDCRG and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: 2-methylbutane in air (mass_concentration_of_2-methylbutane_in_air), 2-methylbutane in air (mole_fraction_of_2_methylbutane_in_air), 2-methylbutane in air (mass_concentration_of_2-methylbutane_in_air), 2-methylbutane in air (mole_fraction_of_2_methylbutane_in_air), 2-methylbutane in air (mass_concentration_of_2-methylbutane_in_air), 2-methylbutane in air (mole_fraction_of_2_methylbutane_in_air), 2-methylpropane in air (mole_fraction_of_2_methylpropane_in_air), 2-methylpropane in air (mole_fraction_of_2_methylpropane_in_air), 2-methylpropane in air (mole_fraction_of_2_methylpropane_in_air), benzene in air (mole_fraction_of_benzene_in_air), benzene in air (mole_fraction_of_benzene_in_air), benzene in air (mole_fraction_of_benzene_in_air), benzene in air (mole_fraction_of_benzene_in_air), benzene in air (mole_fraction_of_benzene_in_air), benzene in air (mole_fraction_of_benzene_in_air), ethane in air (mole_fraction_of_ethane_in_air), ethane in air (mole_fraction_of_ethane_in_air), ethane in air (mole_fraction_of_ethane_in_air), ethene in air (mole_fraction_of_ethene_in_air), ethene in air (mole_fraction_of_ethene_in_air), ethene in air (mole_fraction_of_ethene_in_air), ethyne in air (mole_fraction_of_ethyne_in_air), ethyne in air (mole_fraction_of_ethyne_in_air), ethyne in air (mole_fraction_of_ethyne_in_air), isoprene in air (mass_concentration_of_isoprene_in_air), isoprene in air (mole_fraction_of_isoprene_in_air), isoprene in air (mass_concentration_of_isoprene_in_air), isoprene in air (mole_fraction_of_isoprene_in_air), isoprene in air (mass_concentration_of_isoprene_in_air), isoprene in air (mole_fraction_of_isoprene_in_air), n-butane in air (mass_concentration_of_n-butane_in_air), n-butane in air (mole_fraction_of_butane_in_air), n-butane in air (mass_concentration_of_n-butane_in_air), n-butane in air (mole_fraction_of_butane_in_air), n-butane in air (mass_concentration_of_n-butane_in_air), n-butane in air (mole_fraction_of_butane_in_air), n-pentane in air (mass_concentration_of_n-pentane_in_air), n-pentane in air (mole_fraction_of_pentane_in_air), n-pentane in air (mass_concentration_of_n-pentane_in_air), n-pentane in air (mole_fraction_of_pentane_in_air), n-pentane in air (mass_concentration_of_n-pentane_in_air), n-pentane in air (mole_fraction_of_pentane_in_air), propane in air (mole_fraction_of_propane_in_air), propane in air (mole_fraction_of_propane_in_air), propane in air (mole_fraction_of_propane_in_air), propene in air (mole_fraction_of_propene_in_air), propene in air (mole_fraction_of_propene_in_air), propene in air (mole_fraction_of_propene_in_air), toluene in air (mole_fraction_of_toluene_in_air), toluene in air (mole_fraction_of_toluene_in_air), toluene in air (mole_fraction_of_toluene_in_air), toluene in air (mole_fraction_of_toluene_in_air), toluene in air (mole_fraction_of_toluene_in_air), toluene in air (mole_fraction_of_toluene_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="CV01L, National Institute of Meteorology and Geophysics, Espargos, Ilha do Sal 76, Cape Verde" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2023-02-23T00:00:00 UTC" />
  <attribute name="date_metadata_modified" value="2023-02-23T00:00:00 UTC" />
  <attribute name="creator_name" value="Shalini Punjabi, Lucy Carpenter, Shalini Punjabi, Lucy Carpenter, Shalini Punjabi, Lucy Carpenter, Shalini Punjabi, Lucy Carpenter" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="shalini.punjabi@york.ac.uk, lucy.carpenter@york.ac.uk, shalini.punjabi@york.ac.uk, lucy.carpenter@york.ac.uk, shalini.punjabi@york.ac.uk, lucy.carpenter@york.ac.uk, shalini.punjabi@york.ac.uk, lucy.carpenter@york.ac.uk" />
  <attribute name="creator_institution" value="&quot;National Centre for Atmospheric Science, Wolfson Atmospheric Chemistry Laboratories, NCAS&quot;, &quot;National Centre for Atmospheric Science, Wolfson Atmospheric Chemistry Laboratories, NCAS&quot;, &quot;National Centre for Atmospheric Science, Wolfson Atmospheric Chemistry Laboratories, NCAS&quot;, &quot;National Centre for Atmospheric Science, Wolfson Atmospheric Chemistry Laboratories, NCAS&quot;, &quot;National Centre for Atmospheric Science, Wolfson Atmospheric Chemistry Laboratories, NCAS&quot;, &quot;National Centre for Atmospheric Science, Wolfson Atmospheric Chemistry Laboratories, NCAS&quot;, &quot;National Centre for Atmospheric Science, Wolfson Atmospheric Chemistry Laboratories, NCAS&quot;, &quot;National Centre for Atmospheric Science, Wolfson Atmospheric Chemistry Laboratories, NCAS&quot;" />
  <attribute name="contributor_name" value="Shalini Punjabi, Shalini Punjabi, Shalini Punjabi, Shalini Punjabi" />
  <attribute name="contributor_role" value="data submitter, data submitter, data submitter, data submitter" />
  <attribute name="publisher_type" value="institution" />
  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_institution" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_email" value="ebas@nilu.no" />
  <attribute name="publisher_url" value="https://www.nilu.no/" />
  <attribute name="geospatial_bounds" value="POINT Z (16.86403 -24.86752 10.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="16.86403" />
  <attribute name="geospatial_lat_max" type="double" value="16.86403" />
  <attribute name="geospatial_lon_min" type="double" value="-24.86752" />
  <attribute name="geospatial_lon_max" type="double" value="-24.86752" />
  <attribute name="geospatial_vertical_min" type="double" value="10.0" />
  <attribute name="geospatial_vertical_max" type="double" value="10.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2018-12-31T23:45:08 UTC" />
  <attribute name="time_coverage_end" value="2022-12-31T23:36:32 UTC" />
  <attribute name="time_coverage_duration" value="P0003-11-30T23:51:24" />
  <attribute name="time_coverage_resolution" value="P0000-00-00T00:00:2659" />
  <attribute name="timezone" value="UTC" />
  <attribute name="ebas_data_definition" value="EBAS_1.1" />
  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Shalini Punjabi, Lucy Carpenter, Shalini Punjabi, Lucy Carpenter, Shalini Punjabi, Lucy Carpenter, Shalini Punjabi, Lucy Carpenter, 2-methylbutane, 2-methylpropane, benzene, ethane, ethene, ethyne, isoprene, n-butane, n-pentane, propane, propene, toluene - online_gc at Cape Verde Atmospheric Observatory, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/TWXC-URU2" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="TWXC-URU2.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/TWXC-URU2" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/TWXC-URU2" />
  <attribute name="ebas_file_creation" value="2023-12-16T03:16:12.062064 UTC" />
  <attribute name="ebas_export_state" value="2023-06-28T11:42:59.408552 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="20181231234508" />
  <attribute name="ebas_revision_date" value="20230223000000" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="4y" />
  <attribute name="ebas_resolution_code" value="2659s" />
  <attribute name="ebas_station_code" value="CV0001G" />
  <attribute name="ebas_platform_code" value="CV0001S" />
  <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
  <attribute name="ebas_station_gaw_id" value="CVO" />
  <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
  <attribute name="ebas_station_land_use" value="Gravel and stone" />
  <attribute name="ebas_station_setting" value="Coastal" />
  <attribute name="ebas_station_gaw_type" value="G" />
  <attribute name="ebas_station_wmo_region" value="1" />
  <attribute name="ebas_station_latitude" value="16.86403" />
  <attribute name="ebas_station_longitude" value="-24.86752" />
  <attribute name="ebas_station_altitude" value="10.0 m" />
  <attribute name="ebas_measurement_altitude" value="10.0 m" />
  <attribute name="ebas_measurement_height" value="10.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="CV01L" />
  <attribute name="ebas_instrument_type" value="online_gc" />
  <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
  <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
  <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
  <attribute name="ebas_instrument_serial_number" value="CN12191070" />
  <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
  <attribute name="ebas_standard_method" value="None" />
  <attribute name="ebas_calibration_scale" value="NPL" />
  <attribute name="ebas_inlet_type" value="Hat or hood" />
  <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
  <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
  <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
  <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
  <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
  <attribute name="ebas_originator" value="Carpenter, Lucy, lucy.carpenter@york.ac.uk, National Centre for Atmospheric Science, NCAS, Wolfson Atmospheric Chemistry Laboratories, , Innovation Way, YO10 5DQ, York, Great Britain" />
  <attribute name="ebas_submitter" value="Punjabi, Shalini, shalini.punjabi@york.ac.uk, National Centre for Atmospheric Science, NCAS, Wolfson Atmospheric Chemistry Laboratories, Innovation Way, , YO10 5DQ, York, Great Britain" />
  <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  <attribute name="_NCProperties" value="version=2,netcdf=4.9.0,hdf5=1.12.2" />
  <attribute name="Metadata_Conventions" value="Unidata Dataset Discovery v1.0" />
  <attribute name="geospatial_lat_units" value="degrees_north" />
  <attribute name="geospatial_lon_units" value="degrees_east" />
  <attribute name="comment" value="{&#xA;    &quot;Data definition&quot;: &quot;EBAS_1.1&quot;,&#xA;    &quot;Data license&quot;: &quot;https://creativecommons.org/licenses/by/4.0/&quot;,&#xA;    &quot;Citation&quot;: &quot;Shalini Punjabi, Lucy Carpenter, Shalini Punjabi, Lucy Carpenter, Shalini Punjabi, Lucy Carpenter, Shalini Punjabi, Lucy Carpenter, 2-methylbutane, 2-methylpropane, benzene, ethane, ethene, ethyne, isoprene, n-butane, n-pentane, propane, propene, toluene - online_gc at Cape Verde Atmospheric Observatory, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/TWXC-URU2&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;TWXC-URU2.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/TWXC-URU2&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/TWXC-URU2&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-16T03:16:12.062064 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2023-06-28T11:42:59.408552 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20181231234508&quot;,&#xA;    &quot;Revision date&quot;: &quot;20230223000000&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;4y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;2659s&quot;,&#xA;    &quot;Station code&quot;: &quot;CV0001G&quot;,&#xA;    &quot;Platform code&quot;: &quot;CV0001S&quot;,&#xA;    &quot;Station name&quot;: &quot;Cape Verde Atmospheric Observatory&quot;,&#xA;    &quot;Station GAW-ID&quot;: &quot;CVO&quot;,&#xA;    &quot;Station GAW-Name&quot;: &quot;Cape Verde Observatory&quot;,&#xA;    &quot;Station land use&quot;: &quot;Gravel and stone&quot;,&#xA;    &quot;Station setting&quot;: &quot;Coastal&quot;,&#xA;    &quot;Station GAW type&quot;: &quot;G&quot;,&#xA;    &quot;Station WMO region&quot;: &quot;1&quot;,&#xA;    &quot;Station latitude&quot;: &quot;16.86403&quot;,&#xA;    &quot;Station longitude&quot;: &quot;-24.86752&quot;,&#xA;    &quot;Station altitude&quot;: &quot;10.0 m&quot;,&#xA;    &quot;Measurement altitude&quot;: &quot;10.0 m&quot;,&#xA;    &quot;Measurement height&quot;: &quot;10.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Matrix&quot;: &quot;air&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;CV01L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;online_gc&quot;,&#xA;    &quot;Instrument name&quot;: &quot;Agilent_GC-FID_7890A_G3440A&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;MARKES+MARKES+Agilent&quot;,&#xA;    &quot;Instrument model&quot;: &quot;Air Server+UNITY2+7890A GC/FID&quot;,&#xA;    &quot;Instrument serial number&quot;: &quot;CN12191070&quot;,&#xA;    &quot;Method ref&quot;: &quot;CV01L_Manual_AIR_only&quot;,&#xA;    &quot;Standard method&quot;: &quot;None&quot;,&#xA;    &quot;Calibration scale&quot;: &quot;NPL&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Hat or hood&quot;,&#xA;    &quot;Inlet description&quot;: &quot;Downward facing with hood, 15m total length, insulated, 1m/s flow&quot;,&#xA;    &quot;Detection limit expl.&quot;: &quot;Detection limit equals 3 times the precision&quot;,&#xA;    &quot;Measurement uncertainty expl.&quot;: &quot;expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error&quot;,&#xA;    &quot;Zero/negative values code&quot;: &quot;Zero/negative impossible&quot;,&#xA;    &quot;Organization&quot;: &quot;CV01L, National Institute of Meteorology and Geophysics, , , \&quot;Espargos, Ilha do Sal 76\&quot;, , , , Cape Verde&quot;,&#xA;    &quot;Originator&quot;: &quot;Carpenter, Lucy, lucy.carpenter@york.ac.uk, National Centre for Atmospheric Science, NCAS, Wolfson Atmospheric Chemistry Laboratories, , Innovation Way, YO10 5DQ, York, Great Britain&quot;,&#xA;    &quot;Submitter&quot;: &quot;Punjabi, Shalini, shalini.punjabi@york.ac.uk, National Centre for Atmospheric Science, NCAS, Wolfson Atmospheric Chemistry Laboratories, Innovation Way, , YO10 5DQ, York, Great Britain&quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;Request acknowledgement details from data originator&quot;&#xA;}" />
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  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
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  <dimension name="time" length="38388" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="4" />
  <dimension name="2-methylbutane_ng_per_m3_amean_qc_flags" length="1" />
  <dimension name="2-methylbutane_pmol_per_mol_amean_qc_flags" length="1" />
  <dimension name="2-methylbutane_ng_per_m3_ExpUnc2s_qc_flags" length="1" />
  <dimension name="2-methylbutane_pmol_per_mol_ExpUnc2s_qc_flags" length="1" />
  <dimension name="2-methylbutane_ng_per_m3_precision_qc_flags" length="1" />
  <dimension name="2-methylbutane_pmol_per_mol_precision_qc_flags" length="1" />
  <dimension name="2-methylpropane_amean_qc_flags" length="1" />
  <dimension name="2-methylpropane_ExpUnc2s_qc_flags" length="1" />
  <dimension name="2-methylpropane_precision_qc_flags" length="1" />
  <dimension name="benzene_ng_per_m3_amean_qc_flags" length="1" />
  <dimension name="benzene_pmol_per_mol_amean_qc_flags" length="1" />
  <dimension name="benzene_ng_per_m3_ExpUnc2s_qc_flags" length="1" />
  <dimension name="benzene_pmol_per_mol_ExpUnc2s_qc_flags" length="1" />
  <dimension name="benzene_ng_per_m3_precision_qc_flags" length="1" />
  <dimension name="benzene_pmol_per_mol_precision_qc_flags" length="1" />
  <dimension name="ethane_amean_qc_flags" length="1" />
  <dimension name="ethane_ExpUnc2s_qc_flags" length="1" />
  <dimension name="ethane_precision_qc_flags" length="1" />
  <dimension name="ethene_amean_qc_flags" length="1" />
  <dimension name="ethene_ExpUnc2s_qc_flags" length="1" />
  <dimension name="ethene_precision_qc_flags" length="1" />
  <dimension name="ethyne_amean_qc_flags" length="1" />
  <dimension name="ethyne_ExpUnc2s_qc_flags" length="1" />
  <dimension name="ethyne_precision_qc_flags" length="1" />
  <dimension name="isoprene_ng_per_m3_amean_qc_flags" length="1" />
  <dimension name="isoprene_pmol_per_mol_amean_qc_flags" length="1" />
  <dimension name="isoprene_ng_per_m3_ExpUnc2s_qc_flags" length="1" />
  <dimension name="isoprene_pmol_per_mol_ExpUnc2s_qc_flags" length="1" />
  <dimension name="isoprene_ng_per_m3_precision_qc_flags" length="1" />
  <dimension name="isoprene_pmol_per_mol_precision_qc_flags" length="1" />
  <dimension name="n-butane_ng_per_m3_amean_qc_flags" length="1" />
  <dimension name="n-butane_pmol_per_mol_amean_qc_flags" length="1" />
  <dimension name="n-butane_ng_per_m3_ExpUnc2s_qc_flags" length="1" />
  <dimension name="n-butane_pmol_per_mol_ExpUnc2s_qc_flags" length="1" />
  <dimension name="n-butane_ng_per_m3_precision_qc_flags" length="1" />
  <dimension name="n-butane_pmol_per_mol_precision_qc_flags" length="1" />
  <dimension name="n-pentane_ng_per_m3_amean_qc_flags" length="1" />
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  <dimension name="n-pentane_pmol_per_mol_ExpUnc2s_qc_flags" length="1" />
  <dimension name="n-pentane_ng_per_m3_precision_qc_flags" length="1" />
  <dimension name="n-pentane_pmol_per_mol_precision_qc_flags" length="1" />
  <dimension name="propane_amean_qc_flags" length="1" />
  <dimension name="propane_ExpUnc2s_qc_flags" length="1" />
  <dimension name="propane_precision_qc_flags" length="1" />
  <dimension name="propene_amean_qc_flags" length="1" />
  <dimension name="propene_ExpUnc2s_qc_flags" length="1" />
  <dimension name="propene_precision_qc_flags" length="1" />
  <dimension name="toluene_ng_per_m3_amean_qc_flags" length="1" />
  <dimension name="toluene_pmol_per_mol_amean_qc_flags" length="1" />
  <dimension name="toluene_ng_per_m3_ExpUnc2s_qc_flags" length="1" />
  <dimension name="toluene_pmol_per_mol_ExpUnc2s_qc_flags" length="1" />
  <dimension name="toluene_ng_per_m3_precision_qc_flags" length="1" />
  <dimension name="toluene_pmol_per_mol_precision_qc_flags" length="1" />
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    <attribute name="metadata_creation" value="2026-05-18" />
    <attribute name="nciso_version" value="2.4.8" />
  </group>
  <variable name="time_bnds" shape="time tbnds" type="double">
    <attribute name="long_name" value="time bounds for measurement" />
  </variable>
  <variable name="metadata_time_bnds" shape="metadata_time tbnds" type="double">
    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
  </variable>
  <variable name="2-methylbutane_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_2-methylbutane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="2-methylbutane_ng_per_m3_amean_qc 2-methylbutane_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylbutane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="3.2 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.219. Detection limit converted from '1.0 pmol/mol' to '3.2 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.219." />
  </variable>
  <variable name="2-methylbutane_ng_per_m3_amean_qc" shape="2-methylbutane_ng_per_m3_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="2-methylbutane_ng_per_m3_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="2-methylbutane_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_2_methylbutane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="2-methylbutane_pmol_per_mol_amean_qc 2-methylbutane_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylbutane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit" value="1.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="2-methylbutane_pmol_per_mol_amean_qc" shape="2-methylbutane_pmol_per_mol_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="2-methylbutane_pmol_per_mol_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="2-methylbutane_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_2-methylbutane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="2-methylbutane_ng_per_m3_ExpUnc2s_qc 2-methylbutane_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylbutane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.219." />
  </variable>
  <variable name="2-methylbutane_ng_per_m3_ExpUnc2s_qc" shape="2-methylbutane_ng_per_m3_ExpUnc2s_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="2-methylbutane_ng_per_m3_ExpUnc2s_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="2-methylbutane_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_2_methylbutane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="2-methylbutane_pmol_per_mol_ExpUnc2s_qc 2-methylbutane_pmol_per_mol_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
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    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylbutane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="2-methylbutane_pmol_per_mol_ExpUnc2s_qc" shape="2-methylbutane_pmol_per_mol_ExpUnc2s_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="2-methylbutane_pmol_per_mol_ExpUnc2s_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="2-methylbutane_ng_per_m3_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_2-methylbutane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="2-methylbutane_ng_per_m3_precision_qc 2-methylbutane_ng_per_m3_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylbutane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.219." />
  </variable>
  <variable name="2-methylbutane_ng_per_m3_precision_qc" shape="2-methylbutane_ng_per_m3_precision_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="2-methylbutane_ng_per_m3_precision_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="2-methylbutane_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_2_methylbutane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="2-methylbutane_pmol_per_mol_precision_qc 2-methylbutane_pmol_per_mol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylbutane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="2-methylbutane_pmol_per_mol_precision_qc" shape="2-methylbutane_pmol_per_mol_precision_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="2-methylbutane_pmol_per_mol_precision_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="2-methylpropane_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_2_methylpropane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="2-methylpropane_amean_qc 2-methylpropane_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylpropane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit" value="1.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="2-methylpropane_amean_qc" shape="2-methylpropane_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="2-methylpropane_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="2-methylpropane_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_2_methylpropane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="2-methylpropane_ExpUnc2s_qc 2-methylpropane_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylpropane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="2-methylpropane_ExpUnc2s_qc" shape="2-methylpropane_ExpUnc2s_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="2-methylpropane_ExpUnc2s_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="2-methylpropane_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_2_methylpropane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="2-methylpropane_precision_qc 2-methylpropane_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylpropane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="2-methylpropane_precision_qc" shape="2-methylpropane_precision_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="2-methylpropane_precision_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="benzene_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="benzene_ng_per_m3_amean_qc benzene_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="3.5 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.485. Detection limit converted from '1.0 pmol/mol' to '3.5 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.485." />
  </variable>
  <variable name="benzene_ng_per_m3_amean_qc" shape="benzene_ng_per_m3_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="benzene_ng_per_m3_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="benzene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="benzene_pmol_per_mol_amean_qc benzene_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit" value="1.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="benzene_pmol_per_mol_amean_qc" shape="benzene_pmol_per_mol_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="benzene_pmol_per_mol_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="benzene_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="benzene_ng_per_m3_ExpUnc2s_qc benzene_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.485." />
  </variable>
  <variable name="benzene_ng_per_m3_ExpUnc2s_qc" shape="benzene_ng_per_m3_ExpUnc2s_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="benzene_ng_per_m3_ExpUnc2s_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="benzene_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="benzene_pmol_per_mol_ExpUnc2s_qc benzene_pmol_per_mol_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="benzene_pmol_per_mol_ExpUnc2s_qc" shape="benzene_pmol_per_mol_ExpUnc2s_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="benzene_pmol_per_mol_ExpUnc2s_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="benzene_ng_per_m3_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="benzene_ng_per_m3_precision_qc benzene_ng_per_m3_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.485." />
  </variable>
  <variable name="benzene_ng_per_m3_precision_qc" shape="benzene_ng_per_m3_precision_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="benzene_ng_per_m3_precision_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="benzene_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="benzene_pmol_per_mol_precision_qc benzene_pmol_per_mol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="benzene_pmol_per_mol_precision_qc" shape="benzene_pmol_per_mol_precision_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="benzene_pmol_per_mol_precision_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="ethane_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="ethane_amean_qc ethane_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit" value="4.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
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    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="ethane_amean_qc" shape="ethane_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="ethane_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="ethane_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="ethane_ExpUnc2s_qc ethane_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
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    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="ethane_ExpUnc2s_qc" shape="ethane_ExpUnc2s_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="ethane_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="ethane_precision_qc ethane_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
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    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
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    <attribute name="ebas_measurement_height" value="10.0 m" />
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    <attribute name="ebas_component" value="ethane" />
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    <attribute name="ebas_instrument_type" value="online_gc" />
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  <variable name="ethane_precision_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="ebas_revision_date" value="20230223000000" />
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    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_platform_code" value="CV0001S" />
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    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
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    <attribute name="ebas_measurement_height" value="10.0 m" />
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  <variable name="ethene_amean_qc" shape="ethene_amean_qc_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
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  <variable name="ethene_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="ethene_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
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  <variable name="ethene_ExpUnc2s_qc" shape="ethene_ExpUnc2s_qc_flags time" type="int">
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="ethyne_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="ethyne_ExpUnc2s" shape="time" type="double">
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  <variable name="ethyne_ExpUnc2s_qc" shape="ethyne_ExpUnc2s_qc_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="ethyne_ExpUnc2s_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="ethyne_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethyne_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="ethyne_precision_qc ethyne_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethyne" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="ethyne_precision_qc" shape="ethyne_precision_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="ethyne_precision_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="isoprene_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_isoprene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="isoprene_ng_per_m3_amean_qc isoprene_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="isoprene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="3.0 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.039. Detection limit converted from '1.0 pmol/mol' to '3.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.039." />
  </variable>
  <variable name="isoprene_ng_per_m3_amean_qc" shape="isoprene_ng_per_m3_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="isoprene_ng_per_m3_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="isoprene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_isoprene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="isoprene_pmol_per_mol_amean_qc isoprene_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="isoprene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit" value="1.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="isoprene_pmol_per_mol_amean_qc" shape="isoprene_pmol_per_mol_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="isoprene_pmol_per_mol_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="isoprene_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_isoprene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="isoprene_ng_per_m3_ExpUnc2s_qc isoprene_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="isoprene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.039." />
  </variable>
  <variable name="isoprene_ng_per_m3_ExpUnc2s_qc" shape="isoprene_ng_per_m3_ExpUnc2s_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="isoprene_ng_per_m3_ExpUnc2s_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="isoprene_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_isoprene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="isoprene_pmol_per_mol_ExpUnc2s_qc isoprene_pmol_per_mol_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
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    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="isoprene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="isoprene_pmol_per_mol_ExpUnc2s_qc" shape="isoprene_pmol_per_mol_ExpUnc2s_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="isoprene_pmol_per_mol_ExpUnc2s_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="isoprene_ng_per_m3_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_isoprene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="isoprene_ng_per_m3_precision_qc isoprene_ng_per_m3_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="isoprene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.039." />
  </variable>
  <variable name="isoprene_ng_per_m3_precision_qc" shape="isoprene_ng_per_m3_precision_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="isoprene_ng_per_m3_precision_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="isoprene_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_isoprene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="isoprene_pmol_per_mol_precision_qc isoprene_pmol_per_mol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="isoprene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="isoprene_pmol_per_mol_precision_qc" shape="isoprene_pmol_per_mol_precision_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="isoprene_pmol_per_mol_precision_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="n-butane_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_n-butane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="n-butane_ng_per_m3_amean_qc n-butane_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-butane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="2.6 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.593. Detection limit converted from '1.0 pmol/mol' to '2.6 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.593." />
  </variable>
  <variable name="n-butane_ng_per_m3_amean_qc" shape="n-butane_ng_per_m3_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="n-butane_ng_per_m3_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="n-butane_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_butane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="n-butane_pmol_per_mol_amean_qc n-butane_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-butane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit" value="1.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="n-butane_pmol_per_mol_amean_qc" shape="n-butane_pmol_per_mol_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="n-butane_pmol_per_mol_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="n-butane_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_n-butane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="n-butane_ng_per_m3_ExpUnc2s_qc n-butane_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-butane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.593." />
  </variable>
  <variable name="n-butane_ng_per_m3_ExpUnc2s_qc" shape="n-butane_ng_per_m3_ExpUnc2s_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="units" value="1" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
  </variable>
  <variable name="n-butane_ng_per_m3_ExpUnc2s_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="n-butane_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_butane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="n-butane_pmol_per_mol_ExpUnc2s_qc n-butane_pmol_per_mol_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-butane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="n-butane_pmol_per_mol_ExpUnc2s_qc" shape="n-butane_pmol_per_mol_ExpUnc2s_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="n-butane_pmol_per_mol_ExpUnc2s_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="n-butane_ng_per_m3_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_n-butane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="n-butane_ng_per_m3_precision_qc n-butane_ng_per_m3_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-butane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
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    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
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    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.593." />
  </variable>
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    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
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  <variable name="n-butane_ng_per_m3_precision_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="n-butane_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_butane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="n-butane_pmol_per_mol_precision_qc n-butane_pmol_per_mol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-butane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
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    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
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    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="n-butane_pmol_per_mol_precision_qc" shape="n-butane_pmol_per_mol_precision_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="n-butane_pmol_per_mol_precision_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="n-pentane_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_n-pentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="n-pentane_ng_per_m3_amean_qc n-pentane_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-pentane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
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    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
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    <attribute name="ebas_detection_limit" value="3.2 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
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    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.219. Detection limit converted from '1.0 pmol/mol' to '3.2 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.219." />
  </variable>
  <variable name="n-pentane_ng_per_m3_amean_qc" shape="n-pentane_ng_per_m3_amean_qc_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="n-pentane_ng_per_m3_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="n-pentane_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_pentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="n-pentane_pmol_per_mol_amean_qc n-pentane_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
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    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-pentane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
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    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="n-pentane_pmol_per_mol_amean_qc" shape="n-pentane_pmol_per_mol_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="n-pentane_pmol_per_mol_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="n-pentane_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_n-pentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="n-pentane_ng_per_m3_ExpUnc2s_qc n-pentane_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-pentane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
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    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.219." />
  </variable>
  <variable name="n-pentane_ng_per_m3_ExpUnc2s_qc" shape="n-pentane_ng_per_m3_ExpUnc2s_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
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    <attribute name="units" value="1" />
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  <variable name="n-pentane_ng_per_m3_ExpUnc2s_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="n-pentane_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_pentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="n-pentane_pmol_per_mol_ExpUnc2s_qc n-pentane_pmol_per_mol_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
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    <attribute name="ebas_revision_date" value="20230223000000" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
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    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
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    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-pentane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
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    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
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    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="n-pentane_pmol_per_mol_ExpUnc2s_qc" shape="n-pentane_pmol_per_mol_ExpUnc2s_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="n-pentane_pmol_per_mol_ExpUnc2s_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="n-pentane_ng_per_m3_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_n-pentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="n-pentane_ng_per_m3_precision_qc n-pentane_ng_per_m3_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-pentane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.219." />
  </variable>
  <variable name="n-pentane_ng_per_m3_precision_qc" shape="n-pentane_ng_per_m3_precision_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="n-pentane_ng_per_m3_precision_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="n-pentane_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_pentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="n-pentane_pmol_per_mol_precision_qc n-pentane_pmol_per_mol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-pentane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="n-pentane_pmol_per_mol_precision_qc" shape="n-pentane_pmol_per_mol_precision_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="n-pentane_pmol_per_mol_precision_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="propane_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="propane_amean_qc propane_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit" value="6.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="propane_amean_qc" shape="propane_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="propane_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="propane_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="propane_ExpUnc2s_qc propane_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="propane_ExpUnc2s_qc" shape="propane_ExpUnc2s_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="propane_ExpUnc2s_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="propane_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="propane_precision_qc propane_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="propane_precision_qc" shape="propane_precision_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="propane_precision_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="propene_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="propene_amean_qc propene_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit" value="2.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="propene_amean_qc" shape="propene_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="propene_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="propene_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="propene_ExpUnc2s_qc propene_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="propene_ExpUnc2s_qc" shape="propene_ExpUnc2s_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="propene_ExpUnc2s_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="propene_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="propene_precision_qc propene_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="propene_precision_qc" shape="propene_precision_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="propene_precision_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="toluene_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_toluene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="toluene_ng_per_m3_amean_qc toluene_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="4.1 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.111. Detection limit converted from '1.0 pmol/mol' to '4.1 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.111." />
  </variable>
  <variable name="toluene_ng_per_m3_amean_qc" shape="toluene_ng_per_m3_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="toluene_ng_per_m3_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="toluene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_toluene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="toluene_pmol_per_mol_amean_qc toluene_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit" value="1.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="toluene_pmol_per_mol_amean_qc" shape="toluene_pmol_per_mol_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="units" value="1" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
  </variable>
  <variable name="toluene_pmol_per_mol_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="toluene_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_toluene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="toluene_ng_per_m3_ExpUnc2s_qc toluene_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.111." />
  </variable>
  <variable name="toluene_ng_per_m3_ExpUnc2s_qc" shape="toluene_ng_per_m3_ExpUnc2s_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="toluene_ng_per_m3_ExpUnc2s_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="toluene_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_toluene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="toluene_pmol_per_mol_ExpUnc2s_qc toluene_pmol_per_mol_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="toluene_pmol_per_mol_ExpUnc2s_qc" shape="toluene_pmol_per_mol_ExpUnc2s_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="toluene_pmol_per_mol_ExpUnc2s_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="toluene_ng_per_m3_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_toluene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="toluene_ng_per_m3_precision_qc toluene_ng_per_m3_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.111." />
  </variable>
  <variable name="toluene_ng_per_m3_precision_qc" shape="toluene_ng_per_m3_precision_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="toluene_ng_per_m3_precision_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="toluene_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_toluene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="toluene_pmol_per_mol_precision_qc toluene_pmol_per_mol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230223000000" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CV01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_GC-FID_7890A_G3440A" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server+UNITY2+7890A GC/FID" />
    <attribute name="ebas_instrument_serial_number" value="CN12191070" />
    <attribute name="ebas_method_ref" value="CV01L_Manual_AIR_only" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood, 15m total length, insulated, 1m/s flow" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="expanded uncertainity 2 sigma and it includes reproducibility (precision) + systematic error" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_organization" value="CV01L, National Institute of Meteorology and Geophysics, , , &quot;Espargos, Ilha do Sal 76&quot;, , , , Cape Verde" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Preconcentration by commercial  MARKES unit, o3  removal by heated stainless steel lines , Sterling Coolers and condensing chilllers use for water removal , monthly calibration interval" />
  </variable>
  <variable name="toluene_pmol_per_mol_precision_qc" shape="toluene_pmol_per_mol_precision_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="toluene_pmol_per_mol_precision_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="time" shape="time" type="double">
    <attribute name="long_name" value="time of measurement" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
  <variable name="metadata_time" shape="metadata_time" type="double">
    <attribute name="long_name" value="time of ebas metadata intervals" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
