<?xml version="1.0" encoding="UTF-8"?>
<netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2" location="Not provided because of security concerns.">
  <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 Zugspitze-Schneefernerhaus (DE0054R)" />
  <attribute name="keywords" value="mole_fraction_of_butane_in_air, DE0054R, air, benzene, mass_concentration_of_n-butane_in_air, mole_fraction_of_2_methylpropane_in_air, Zugspitze-Schneefernerhaus, mole_fraction_of_isoprene_in_air, ethane, propane, isoprene, 2-methylpropane, n-butane, mole_fraction_of_propane_in_air, mole_fraction_of_benzene_in_air, mole_fraction_of_ethane_in_air, mass_concentration_of_isoprene_in_air, ACTRIS, GAW-WDCRG" />
  <attribute name="id" value="784A-UYMT.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, GAW-WDCRG" />
  <attribute name="acknowledgement" value="Request acknowledgement details from data originator." />
  <attribute name="doi" value="https://doi.org/10.48597/784A-UYMT" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Ludwig Ries, Detlev Helmig, Ludwig Ries, Detlev Helmig, Ludwig Ries, Detlev Helmig, 2-methylpropane, benzene, ethane, isoprene, n-butane, propane - online_gc at Zugspitze-Schneefernerhaus, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/784A-UYMT" />
  <attribute name="summary" value="Ground based in situ observations of online_gc at Zugspitze-Schneefernerhaus (DE0054R). These measurements are gathered as a part of the following projects ACTRIS, GAW-WDCRG and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: 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), ethane in air (mole_fraction_of_ethane_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), propane in air (mole_fraction_of_propane_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="DE42L, Umweltbundesamt, UBA, II.4.5.7 GAW Globalobservatorium Zugspitze/Hohenpeissenberg, Platform Zugspitze, Umweltforschungsstation Schneefernerhaus, 82475, Zugspitze, Germany" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2019-08-27T08:37:25 UTC" />
  <attribute name="date_metadata_modified" value="2019-08-27T08:37:25 UTC" />
  <attribute name="creator_name" value="Ludwig Ries, Detlev Helmig, Ludwig Ries, Detlev Helmig, Ludwig Ries, Detlev Helmig" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="ludwig.ries@uba.de, Detlev.Helmig@colorado.edu, ludwig.ries@uba.de, Detlev.Helmig@colorado.edu, ludwig.ries@uba.de, Detlev.Helmig@colorado.edu" />
  <attribute name="creator_institution" value="&quot;Federal Environment Agency, UBA&quot;, &quot;University of Colorado - INSTAAR, Institute of Arctic and Alpine Research, INSTAAR&quot;, &quot;Federal Environment Agency, UBA&quot;, &quot;University of Colorado - INSTAAR, Institute of Arctic and Alpine Research, INSTAAR&quot;, &quot;Federal Environment Agency, UBA&quot;, &quot;University of Colorado - INSTAAR, Institute of Arctic and Alpine Research, INSTAAR&quot;" />
  <attribute name="contributor_name" value="Wei Wang, Wei Wang, Wei Wang" />
  <attribute name="contributor_role" value="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 (47.4165 10.97964 2671.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="47.4165" />
  <attribute name="geospatial_lat_max" type="double" value="47.4165" />
  <attribute name="geospatial_lon_min" type="double" value="10.97964" />
  <attribute name="geospatial_lon_max" type="double" value="10.97964" />
  <attribute name="geospatial_vertical_min" type="double" value="2671.0" />
  <attribute name="geospatial_vertical_max" type="double" value="2671.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2015-01-12T00:27:50 UTC" />
  <attribute name="time_coverage_end" value="2017-05-31T01:09:51 UTC" />
  <attribute name="time_coverage_duration" value="P0002-04-19T00:42:00.600000" />
  <attribute name="time_coverage_resolution" value="P0000-00-01T00:00:00" />
  <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="Ludwig Ries, Detlev Helmig, Ludwig Ries, Detlev Helmig, Ludwig Ries, Detlev Helmig, 2-methylpropane, benzene, ethane, isoprene, n-butane, propane - online_gc at Zugspitze-Schneefernerhaus, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/784A-UYMT" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="784A-UYMT.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/784A-UYMT" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/784A-UYMT" />
  <attribute name="ebas_file_creation" value="2023-12-11T18:25:01.911278 UTC" />
  <attribute name="ebas_export_state" value="2019-08-27T08:53:12.817000 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="20150112002750" />
  <attribute name="ebas_revision_date" value="20190827083725" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="initial revision, manually inspected" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="29mo" />
  <attribute name="ebas_resolution_code" value="1d" />
  <attribute name="ebas_sample_duration" value="2500s" />
  <attribute name="ebas_station_code" value="DE0054R" />
  <attribute name="ebas_platform_code" value="DE0054S" />
  <attribute name="ebas_station_name" value="Zugspitze-Schneefernerhaus" />
  <attribute name="ebas_station_wdca_id" value="GAWADE__ZSF" />
  <attribute name="ebas_station_gaw_id" value="ZSF" />
  <attribute name="ebas_station_gaw_name" value="Zugspitze-Schneefernerhaus" />
  <attribute name="ebas_station_land_use" value="Gravel and stone" />
  <attribute name="ebas_station_setting" value="Mountain" />
  <attribute name="ebas_station_gaw_type" value="G" />
  <attribute name="ebas_station_wmo_region" value="6" />
  <attribute name="ebas_station_latitude" value="47.4165" />
  <attribute name="ebas_station_longitude" value="10.97964" />
  <attribute name="ebas_station_altitude" value="2671.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="US13L" />
  <attribute name="ebas_instrument_type" value="online_gc" />
  <attribute name="ebas_instrument_name" value="UBA-GCMS" />
  <attribute name="ebas_instrument_manufacturer" value="Agilent" />
  <attribute name="ebas_instrument_model" value="5975GC/MS" />
  <attribute name="ebas_method_ref" value="US13L_ZSF_VOC_SOP" />
  <attribute name="ebas_inlet_type" value="Downward-facing tube" />
  <attribute name="ebas_inlet_description" value="10-cm Borosilicate glass inlet. Flow rate: 500 ltrs/min. Residence time: 5 secs." />
  <attribute name="ebas_detection_limit_expl" value="Detection limit is 3 times the precision based on blank measrements of zero air." />
  <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes measurement precision and systematic errors." />
  <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
  <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations." />
  <attribute name="ebas_organization" value="DE42L, Umweltbundesamt, UBA, &quot;II.4.5.7 GAW Globalobservatorium Zugspitze/Hohenpeissenberg, Platform Zugspitze&quot;, Umweltforschungsstation Schneefernerhaus, , 82475, Zugspitze, Germany" />
  <attribute name="ebas_originator" value="Helmig, Detlev, Detlev.Helmig@colorado.edu, University of Colorado - INSTAAR, INSTAAR, Institute of Arctic and Alpine Research, 4001 Discovery Drive, , CO 80303, Boulder, USA, ORCID=0000-0003-1612-1651" />
  <attribute name="ebas_submitter" value="Wang, Wei, wei.wang-3@colorado.edu, University of Colorado Boulder, INSTAAR, 4001 Discovery Dr., , 80309, Boulder, CO, USA" />
  <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;Ludwig Ries, Detlev Helmig, Ludwig Ries, Detlev Helmig, Ludwig Ries, Detlev Helmig, 2-methylpropane, benzene, ethane, isoprene, n-butane, propane - online_gc at Zugspitze-Schneefernerhaus, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/784A-UYMT&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;784A-UYMT.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/784A-UYMT&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/784A-UYMT&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-11T18:25:01.911278 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2019-08-27T08:53:12.817000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20150112002750&quot;,&#xA;    &quot;Revision date&quot;: &quot;20190827083725&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Version description&quot;: &quot;initial revision, manually inspected&quot;,&#xA;    &quot;Statistics&quot;: &quot;arithmetic mean&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;29mo&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1d&quot;,&#xA;    &quot;Sample duration&quot;: &quot;2500s&quot;,&#xA;    &quot;Station code&quot;: &quot;DE0054R&quot;,&#xA;    &quot;Platform code&quot;: &quot;DE0054S&quot;,&#xA;    &quot;Station name&quot;: &quot;Zugspitze-Schneefernerhaus&quot;,&#xA;    &quot;Station WDCA-ID&quot;: &quot;GAWADE__ZSF&quot;,&#xA;    &quot;Station GAW-ID&quot;: &quot;ZSF&quot;,&#xA;    &quot;Station GAW-Name&quot;: &quot;Zugspitze-Schneefernerhaus&quot;,&#xA;    &quot;Station land use&quot;: &quot;Gravel and stone&quot;,&#xA;    &quot;Station setting&quot;: &quot;Mountain&quot;,&#xA;    &quot;Station GAW type&quot;: &quot;G&quot;,&#xA;    &quot;Station WMO region&quot;: &quot;6&quot;,&#xA;    &quot;Station latitude&quot;: &quot;47.4165&quot;,&#xA;    &quot;Station longitude&quot;: &quot;10.97964&quot;,&#xA;    &quot;Station altitude&quot;: &quot;2671.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Matrix&quot;: &quot;air&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;US13L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;online_gc&quot;,&#xA;    &quot;Instrument name&quot;: &quot;UBA-GCMS&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;Agilent&quot;,&#xA;    &quot;Instrument model&quot;: &quot;5975GC/MS&quot;,&#xA;    &quot;Method ref&quot;: &quot;US13L_ZSF_VOC_SOP&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Downward-facing tube&quot;,&#xA;    &quot;Inlet description&quot;: &quot;10-cm Borosilicate glass inlet. Flow rate: 500 ltrs/min. Residence time: 5 secs.&quot;,&#xA;    &quot;Detection limit expl.&quot;: &quot;Detection limit is 3 times the precision based on blank measrements of zero air.&quot;,&#xA;    &quot;Measurement uncertainty expl.&quot;: &quot;Measurement uncertainty includes measurement precision and systematic errors.&quot;,&#xA;    &quot;Zero/negative values code&quot;: &quot;Zero/negative possible&quot;,&#xA;    &quot;Zero/negative values&quot;: &quot;Zero and neg. values may appear due to statistical variations at very low concentrations.&quot;,&#xA;    &quot;Organization&quot;: &quot;DE42L, Umweltbundesamt, UBA, \&quot;II.4.5.7 GAW Globalobservatorium Zugspitze/Hohenpeissenberg, Platform Zugspitze\&quot;, Umweltforschungsstation Schneefernerhaus, , 82475, Zugspitze, Germany&quot;,&#xA;    &quot;Originator&quot;: &quot;Helmig, Detlev, Detlev.Helmig@colorado.edu, University of Colorado - INSTAAR, INSTAAR, Institute of Arctic and Alpine Research, 4001 Discovery Drive, , CO 80303, Boulder, USA, ORCID=0000-0003-1612-1651&quot;,&#xA;    &quot;Submitter&quot;: &quot;Wang, Wei, wei.wang-3@colorado.edu, University of Colorado Boulder, INSTAAR, 4001 Discovery Dr., , 80309, Boulder, CO, USA&quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;Request acknowledgement details from data originator.&quot;&#xA;}" />
  <attribute name="standard_name_vocabulary" value="CF-1.7, ACDD-1.3" />
  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
  <attribute name="_CoordSysBuilder" value="ucar.nc2.internal.dataset.conv.CF1Convention" />
  <dimension name="time" length="815" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="3" />
  <dimension name="2-methylpropane_qc_flags" length="1" />
  <dimension name="benzene_ng_per_m3_qc_flags" length="1" />
  <dimension name="benzene_pmol_per_mol_qc_flags" length="1" />
  <dimension name="ethane_qc_flags" length="1" />
  <dimension name="isoprene_ng_per_m3_qc_flags" length="1" />
  <dimension name="isoprene_pmol_per_mol_qc_flags" length="1" />
  <dimension name="n-butane_ng_per_m3_qc_flags" length="1" />
  <dimension name="n-butane_pmol_per_mol_qc_flags" length="1" />
  <dimension name="propane_qc_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2015-01-12T00:48:40Z" />
    <attribute name="time_coverage_end" value="2017-05-31T00:48:31Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="92343.0" />
    <attribute name="time_coverage_duration" value="P0Y0M869DT23H59M50.600S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-17" />
    <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-methylpropane" 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_qc 2-methylpropane_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="20190827083725" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="2500s" />
    <attribute name="ebas_station_code" value="DE0054R" />
    <attribute name="ebas_platform_code" value="DE0054S" />
    <attribute name="ebas_station_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__ZSF" />
    <attribute name="ebas_station_gaw_id" value="ZSF" />
    <attribute name="ebas_station_gaw_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="47.4165" />
    <attribute name="ebas_station_longitude" value="10.97964" />
    <attribute name="ebas_station_altitude" value="2671.0 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="US13L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="UBA-GCMS" />
    <attribute name="ebas_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_instrument_model" value="5975GC/MS" />
    <attribute name="ebas_method_ref" value="US13L_ZSF_VOC_SOP" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="10-cm Borosilicate glass inlet. Flow rate: 500 ltrs/min. Residence time: 5 secs." />
    <attribute name="ebas_detection_limit" value="1.23 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit is 3 times the precision based on blank measrements of zero air." />
    <attribute name="ebas_measurement_uncertainty" value="1.9 pmol/mol" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes measurement precision and systematic errors." />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations." />
    <attribute name="ebas_organization" value="DE42L, Umweltbundesamt, UBA, &quot;II.4.5.7 GAW Globalobservatorium Zugspitze/Hohenpeissenberg, Platform Zugspitze&quot;, Umweltforschungsstation Schneefernerhaus, , 82475, Zugspitze, Germany" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator." />
  </variable>
  <variable name="2-methylpropane_qc" shape="2-methylpropane_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_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" 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_qc benzene_ng_per_m3_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="20190827083725" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="2500s" />
    <attribute name="ebas_station_code" value="DE0054R" />
    <attribute name="ebas_platform_code" value="DE0054S" />
    <attribute name="ebas_station_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__ZSF" />
    <attribute name="ebas_station_gaw_id" value="ZSF" />
    <attribute name="ebas_station_gaw_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="47.4165" />
    <attribute name="ebas_station_longitude" value="10.97964" />
    <attribute name="ebas_station_altitude" value="2671.0 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="US13L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="UBA-GCMS" />
    <attribute name="ebas_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_instrument_model" value="5975GC/MS" />
    <attribute name="ebas_method_ref" value="US13L_ZSF_VOC_SOP" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="10-cm Borosilicate glass inlet. Flow rate: 500 ltrs/min. Residence time: 5 secs." />
    <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="1.0 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit is 3 times the precision based on blank measrements of zero air." />
    <attribute name="ebas_measurement_uncertainty" value="122.0 ng/m3" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes measurement precision and systematic errors." />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations." />
    <attribute name="ebas_organization" value="DE42L, Umweltbundesamt, UBA, &quot;II.4.5.7 GAW Globalobservatorium Zugspitze/Hohenpeissenberg, Platform Zugspitze&quot;, Umweltforschungsstation Schneefernerhaus, , 82475, Zugspitze, Germany" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator." />
    <attribute name="ebas_comment" value="Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.49. Measurement uncertainty converted from '35.0 pmol/mol' to '122.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.49. Detection limit converted from '0.3 pmol/mol' to '1.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.49." />
  </variable>
  <variable name="benzene_ng_per_m3_qc" shape="benzene_ng_per_m3_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_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" 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_qc benzene_pmol_per_mol_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="20190827083725" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="2500s" />
    <attribute name="ebas_station_code" value="DE0054R" />
    <attribute name="ebas_platform_code" value="DE0054S" />
    <attribute name="ebas_station_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__ZSF" />
    <attribute name="ebas_station_gaw_id" value="ZSF" />
    <attribute name="ebas_station_gaw_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="47.4165" />
    <attribute name="ebas_station_longitude" value="10.97964" />
    <attribute name="ebas_station_altitude" value="2671.0 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="US13L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="UBA-GCMS" />
    <attribute name="ebas_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_instrument_model" value="5975GC/MS" />
    <attribute name="ebas_method_ref" value="US13L_ZSF_VOC_SOP" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="10-cm Borosilicate glass inlet. Flow rate: 500 ltrs/min. Residence time: 5 secs." />
    <attribute name="ebas_detection_limit" value="0.3 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit is 3 times the precision based on blank measrements of zero air." />
    <attribute name="ebas_measurement_uncertainty" value="35.0 pmol/mol" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes measurement precision and systematic errors." />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations." />
    <attribute name="ebas_organization" value="DE42L, Umweltbundesamt, UBA, &quot;II.4.5.7 GAW Globalobservatorium Zugspitze/Hohenpeissenberg, Platform Zugspitze&quot;, Umweltforschungsstation Schneefernerhaus, , 82475, Zugspitze, Germany" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator." />
  </variable>
  <variable name="benzene_pmol_per_mol_qc" shape="benzene_pmol_per_mol_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_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="ethane" 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_qc ethane_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="20190827083725" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="2500s" />
    <attribute name="ebas_station_code" value="DE0054R" />
    <attribute name="ebas_platform_code" value="DE0054S" />
    <attribute name="ebas_station_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__ZSF" />
    <attribute name="ebas_station_gaw_id" value="ZSF" />
    <attribute name="ebas_station_gaw_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="47.4165" />
    <attribute name="ebas_station_longitude" value="10.97964" />
    <attribute name="ebas_station_altitude" value="2671.0 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="US13L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="UBA-GCMS" />
    <attribute name="ebas_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_instrument_model" value="5975GC/MS" />
    <attribute name="ebas_method_ref" value="US13L_ZSF_VOC_SOP" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="10-cm Borosilicate glass inlet. Flow rate: 500 ltrs/min. Residence time: 5 secs." />
    <attribute name="ebas_detection_limit" value="11.02 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit is 3 times the precision based on blank measrements of zero air." />
    <attribute name="ebas_measurement_uncertainty" value="54.0 pmol/mol" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes measurement precision and systematic errors." />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations." />
    <attribute name="ebas_organization" value="DE42L, Umweltbundesamt, UBA, &quot;II.4.5.7 GAW Globalobservatorium Zugspitze/Hohenpeissenberg, Platform Zugspitze&quot;, Umweltforschungsstation Schneefernerhaus, , 82475, Zugspitze, Germany" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator." />
  </variable>
  <variable name="ethane_qc" shape="ethane_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_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" 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_qc isoprene_ng_per_m3_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="20190827083725" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="2500s" />
    <attribute name="ebas_station_code" value="DE0054R" />
    <attribute name="ebas_platform_code" value="DE0054S" />
    <attribute name="ebas_station_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__ZSF" />
    <attribute name="ebas_station_gaw_id" value="ZSF" />
    <attribute name="ebas_station_gaw_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="47.4165" />
    <attribute name="ebas_station_longitude" value="10.97964" />
    <attribute name="ebas_station_altitude" value="2671.0 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="US13L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="UBA-GCMS" />
    <attribute name="ebas_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_instrument_model" value="5975GC/MS" />
    <attribute name="ebas_method_ref" value="US13L_ZSF_VOC_SOP" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="10-cm Borosilicate glass inlet. Flow rate: 500 ltrs/min. Residence time: 5 secs." />
    <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="4.6 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit is 3 times the precision based on blank measrements of zero air." />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes measurement precision and systematic errors." />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations." />
    <attribute name="ebas_organization" value="DE42L, Umweltbundesamt, UBA, &quot;II.4.5.7 GAW Globalobservatorium Zugspitze/Hohenpeissenberg, Platform Zugspitze&quot;, Umweltforschungsstation Schneefernerhaus, , 82475, Zugspitze, Germany" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator." />
  </variable>
  <variable name="isoprene_ng_per_m3_qc" shape="isoprene_ng_per_m3_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_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" 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_qc isoprene_pmol_per_mol_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="20190827083725" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="2500s" />
    <attribute name="ebas_station_code" value="DE0054R" />
    <attribute name="ebas_platform_code" value="DE0054S" />
    <attribute name="ebas_station_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__ZSF" />
    <attribute name="ebas_station_gaw_id" value="ZSF" />
    <attribute name="ebas_station_gaw_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="47.4165" />
    <attribute name="ebas_station_longitude" value="10.97964" />
    <attribute name="ebas_station_altitude" value="2671.0 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="US13L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="UBA-GCMS" />
    <attribute name="ebas_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_instrument_model" value="5975GC/MS" />
    <attribute name="ebas_method_ref" value="US13L_ZSF_VOC_SOP" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="10-cm Borosilicate glass inlet. Flow rate: 500 ltrs/min. Residence time: 5 secs." />
    <attribute name="ebas_detection_limit" value="1.5 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit is 3 times the precision based on blank measrements of zero air." />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes measurement precision and systematic errors." />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations." />
    <attribute name="ebas_organization" value="DE42L, Umweltbundesamt, UBA, &quot;II.4.5.7 GAW Globalobservatorium Zugspitze/Hohenpeissenberg, Platform Zugspitze&quot;, Umweltforschungsstation Schneefernerhaus, , 82475, Zugspitze, Germany" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator." />
  </variable>
  <variable name="isoprene_pmol_per_mol_qc" shape="isoprene_pmol_per_mol_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_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" 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_qc n-butane_ng_per_m3_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="20190827083725" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="2500s" />
    <attribute name="ebas_station_code" value="DE0054R" />
    <attribute name="ebas_platform_code" value="DE0054S" />
    <attribute name="ebas_station_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__ZSF" />
    <attribute name="ebas_station_gaw_id" value="ZSF" />
    <attribute name="ebas_station_gaw_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="47.4165" />
    <attribute name="ebas_station_longitude" value="10.97964" />
    <attribute name="ebas_station_altitude" value="2671.0 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="US13L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="UBA-GCMS" />
    <attribute name="ebas_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_instrument_model" value="5975GC/MS" />
    <attribute name="ebas_method_ref" value="US13L_ZSF_VOC_SOP" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="10-cm Borosilicate glass inlet. Flow rate: 500 ltrs/min. Residence time: 5 secs." />
    <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="2.0 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit is 3 times the precision based on blank measrements of zero air." />
    <attribute name="ebas_measurement_uncertainty" value="8.0 ng/m3" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes measurement precision and systematic errors." />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations." />
    <attribute name="ebas_organization" value="DE42L, Umweltbundesamt, UBA, &quot;II.4.5.7 GAW Globalobservatorium Zugspitze/Hohenpeissenberg, Platform Zugspitze&quot;, Umweltforschungsstation Schneefernerhaus, , 82475, Zugspitze, Germany" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator." />
    <attribute name="ebas_comment" value="Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.59. Measurement uncertainty converted from '3.0 pmol/mol' to '8.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.59. Detection limit converted from '0.84 pmol/mol' to '2.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.59." />
  </variable>
  <variable name="n-butane_ng_per_m3_qc" shape="n-butane_ng_per_m3_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_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" 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_qc n-butane_pmol_per_mol_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="20190827083725" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="2500s" />
    <attribute name="ebas_station_code" value="DE0054R" />
    <attribute name="ebas_platform_code" value="DE0054S" />
    <attribute name="ebas_station_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__ZSF" />
    <attribute name="ebas_station_gaw_id" value="ZSF" />
    <attribute name="ebas_station_gaw_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="47.4165" />
    <attribute name="ebas_station_longitude" value="10.97964" />
    <attribute name="ebas_station_altitude" value="2671.0 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="US13L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="UBA-GCMS" />
    <attribute name="ebas_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_instrument_model" value="5975GC/MS" />
    <attribute name="ebas_method_ref" value="US13L_ZSF_VOC_SOP" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="10-cm Borosilicate glass inlet. Flow rate: 500 ltrs/min. Residence time: 5 secs." />
    <attribute name="ebas_detection_limit" value="0.84 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit is 3 times the precision based on blank measrements of zero air." />
    <attribute name="ebas_measurement_uncertainty" value="3.0 pmol/mol" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes measurement precision and systematic errors." />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations." />
    <attribute name="ebas_organization" value="DE42L, Umweltbundesamt, UBA, &quot;II.4.5.7 GAW Globalobservatorium Zugspitze/Hohenpeissenberg, Platform Zugspitze&quot;, Umweltforschungsstation Schneefernerhaus, , 82475, Zugspitze, Germany" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator." />
  </variable>
  <variable name="n-butane_pmol_per_mol_qc" shape="n-butane_pmol_per_mol_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_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="propane" 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_qc propane_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="20190827083725" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="2500s" />
    <attribute name="ebas_station_code" value="DE0054R" />
    <attribute name="ebas_platform_code" value="DE0054S" />
    <attribute name="ebas_station_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__ZSF" />
    <attribute name="ebas_station_gaw_id" value="ZSF" />
    <attribute name="ebas_station_gaw_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="47.4165" />
    <attribute name="ebas_station_longitude" value="10.97964" />
    <attribute name="ebas_station_altitude" value="2671.0 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="US13L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="UBA-GCMS" />
    <attribute name="ebas_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_instrument_model" value="5975GC/MS" />
    <attribute name="ebas_method_ref" value="US13L_ZSF_VOC_SOP" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="10-cm Borosilicate glass inlet. Flow rate: 500 ltrs/min. Residence time: 5 secs." />
    <attribute name="ebas_detection_limit" value="6.28 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit is 3 times the precision based on blank measrements of zero air." />
    <attribute name="ebas_measurement_uncertainty" value="13.0 pmol/mol" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes measurement precision and systematic errors." />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations." />
    <attribute name="ebas_organization" value="DE42L, Umweltbundesamt, UBA, &quot;II.4.5.7 GAW Globalobservatorium Zugspitze/Hohenpeissenberg, Platform Zugspitze&quot;, Umweltforschungsstation Schneefernerhaus, , 82475, Zugspitze, Germany" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator." />
  </variable>
  <variable name="propane_qc" shape="propane_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_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>
