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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 unspecified_air_grab_sampler at Zeppelin mountain (Ny-Ålesund) (NO0042G)" />
  <attribute name="keywords" value="delta_D_methane, Zeppelin mountain (Ny-Ålesund), air, mole_fraction_of_deltaDmethane_in_methane, NO0042G, mole_fraction_of_methane_in_air, ReGAME, methane" />
  <attribute name="id" value="R9JZ-9278.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ReGAME" />
  <attribute name="acknowledgement" value="If the data are obtained for potential use in a publication or presentation, University of Utrecht (UU), Institute for Marine and Atmospheric Research Utrecht should be informed of the nature of this work. If the UU data are essential to the work, or if an important result or conclusion depends on the UU data, co-authorship may be appropriate. This should be discussed at an early stage in the work. Contacts: Professor Dr Thomas Röckmann t.roeckmann_at_uu.nl and Dr Carina van der Veen C.vanderVeen_at_uu.nl" />
  <attribute name="doi" value="https://doi.org/10.48597/R9JZ-9278" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Stephen M. Platt, Thomas Röckmann, delta_D_methane, methane - unspecified_air_grab_sampler at Zeppelin mountain (Ny-Ålesund), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/R9JZ-9278" />
  <attribute name="summary" value="Ground based in situ observations of unspecified_air_grab_sampler at Zeppelin mountain (Ny-Ålesund) (NO0042G). These measurements are gathered as a part of the following projects ReGAME and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: delta_D_methane in air (mole_fraction_of_deltaDmethane_in_methane), delta_D_methane in air (mole_fraction_of_deltaDmethane_in_methane), methane in air (mole_fraction_of_methane_in_air), methane in air (mole_fraction_of_methane_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="NO01L, Norwegian Institute for Air Research, NILU, Instituttveien 18, 2007, Kjeller, Norway" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2023-06-21T08:22:54 UTC" />
  <attribute name="date_metadata_modified" value="2023-06-21T08:22:54 UTC" />
  <attribute name="creator_name" value="Stephen M. Platt, Thomas Röckmann" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="sp@nilu.no, t.roeckmann@uu.nl" />
  <attribute name="creator_institution" value="&quot;Norwegian Institute for Air Research, Atmosphere and Climate Department, NILU&quot;, &quot;University of Utrecht, Institute for Marine and Atmospheric Research Utrecht, UU&quot;" />
  <attribute name="contributor_name" value="Thomas Röckmann" />
  <attribute name="contributor_role" value="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 (78.90669 11.88934 475.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="78.90669" />
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  <attribute name="geospatial_lon_min" type="double" value="11.88934" />
  <attribute name="geospatial_lon_max" type="double" value="11.88934" />
  <attribute name="geospatial_vertical_min" type="double" value="475.0" />
  <attribute name="geospatial_vertical_max" type="double" value="475.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2012-09-18T07:25:00 UTC" />
  <attribute name="time_coverage_end" value="2021-10-19T08:03:00 UTC" />
  <attribute name="time_coverage_duration" value="P0009-01-01T00:38:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-07T00:00:00" />
  <attribute name="timezone" value="UTC" />
  <attribute name="ebas_data_definition" value="EBAS_1.1" />
  <attribute name="ebas_citation" value="Stephen M. Platt, Thomas Röckmann, delta_D_methane, methane - unspecified_air_grab_sampler at Zeppelin mountain (Ny-Ålesund), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/R9JZ-9278" />
  <attribute name="ebas_set_type_code" value="TI" />
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  <attribute name="ebas_file_name" value="R9JZ-9278.nc" />
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  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/R9JZ-9278" />
  <attribute name="ebas_file_creation" value="2023-12-10T09:21:43.328477 UTC" />
  <attribute name="ebas_export_state" value="2023-06-20T14:45:40.201860 UTC" />
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  <attribute name="ebas_startdate" value="20120918072500" />
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  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="9y" />
  <attribute name="ebas_resolution_code" value="1w" />
  <attribute name="ebas_sample_duration" value="20mn" />
  <attribute name="ebas_orig_time_res" value="20mn" />
  <attribute name="ebas_station_code" value="NO0042G" />
  <attribute name="ebas_platform_code" value="NO0042S" />
  <attribute name="ebas_station_name" value="Zeppelin mountain (Ny-Ålesund)" />
  <attribute name="ebas_station_wdca_id" value="GAWANO__ZEP" />
  <attribute name="ebas_station_gaw_id" value="ZEP" />
  <attribute name="ebas_station_gaw_name" value="Zeppelin Mountain (Ny Ålesund)" />
  <attribute name="ebas_station_land_use" value="Gravel and stone" />
  <attribute name="ebas_station_setting" value="Polar" />
  <attribute name="ebas_station_gaw_type" value="G" />
  <attribute name="ebas_station_wmo_region" value="6" />
  <attribute name="ebas_station_latitude" value="78.90715" />
  <attribute name="ebas_station_longitude" value="11.88668" />
  <attribute name="ebas_station_altitude" value="474.0 m" />
  <attribute name="ebas_measuremenet_latitude" value="78.90669" />
  <attribute name="ebas_measurement_longitude" value="11.88934" />
  <attribute name="ebas_measurement_altitude" value="475.0 m" />
  <attribute name="ebas_measurement_height" value="4.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="NO01L" />
  <attribute name="ebas_instrument_type" value="unspecified_air_grab_sampler" />
  <attribute name="ebas_instrument_name" value="ZEP_sealed_air_sample" />
  <attribute name="ebas_analytical_laboratory_code" value="NL07L" />
  <attribute name="ebas_analytical_measurement_technique" value="CF-IRMS" />
  <attribute name="ebas_analytical_instrument_name" value="CF-IRMS" />
  <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Fisher Scientific" />
  <attribute name="ebas_analytical_instrument_model" value="Delta Plus XP" />
  <attribute name="ebas_analytical_instrument_serial_number" value="SN7808" />
  <attribute name="ebas_method_ref" value="NL07L_CF-IRMS" />
  <attribute name="ebas_inlet_type" value="Hat or hood" />
  <attribute name="ebas_inlet_description" value="Downward facing with hood. Insulated, heated" />
  <attribute name="ebas_inlet_tube_material" value="Stainless steel" />
  <attribute name="ebas_inlet_tube_length" value="25.0 m" />
  <attribute name="ebas_humidity_temperaure_control" value="Absorption dryer" />
  <attribute name="ebas_humidity_temperaure_control_description" value="Sample dried by using drierite." />
  <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
  <attribute name="ebas_organization" value="NO01L, Norwegian Institute for Air Research, NILU, , Instituttveien 18, , 2007, Kjeller, Norway" />
  <attribute name="ebas_framework_acronym" value="ReGAME" />
  <attribute name="ebas_framework_name" value="REliable Global Methane Emissions estimates in a changing world" />
  <attribute name="ebas_framework_contact_name" value="Stephen Matthew Platt" />
  <attribute name="ebas_framework_contact_email" value="sp@nilu.no" />
  <attribute name="ebas_originator" value="Röckmann, Thomas, t.roeckmann@uu.nl, University of Utrecht, UU, Institute for Marine and Atmospheric Research Utrecht, , , , Utrecht, The Netherlands, ORCID=0000-0002-6688-8968" />
  <attribute name="ebas_submitter" value="Röckmann, Thomas, t.roeckmann@uu.nl, University of Utrecht, UU, Institute for Marine and Atmospheric Research Utrecht, , , , Utrecht, The Netherlands, ORCID=0000-0002-6688-8968" />
  <attribute name="ebas_acknowledgement" value="If the data are obtained for potential use in a publication or presentation, University of Utrecht (UU), Institute for Marine and Atmospheric Research Utrecht should be informed of the nature of this work. If the UU data are essential to the work, or if an important result or conclusion depends on the UU data, co-authorship may be appropriate. This should be discussed at an early stage in the work. Contacts: Professor Dr Thomas Röckmann t.roeckmann_at_uu.nl and Dr Carina van der Veen C.vanderVeen_at_uu.nl" />
  <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;Citation&quot;: &quot;Stephen M. Platt, Thomas Röckmann, delta_D_methane, methane - unspecified_air_grab_sampler at Zeppelin mountain (Ny-Ålesund), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/R9JZ-9278&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;R9JZ-9278.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/R9JZ-9278&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/R9JZ-9278&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-10T09:21:43.328477 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2023-06-20T14:45:40.201860 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20120918072500&quot;,&#xA;    &quot;Revision date&quot;: &quot;20230621082254&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Version description&quot;: &quot;initial revision, automatically generated, manually inspected&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;9y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1w&quot;,&#xA;    &quot;Sample duration&quot;: &quot;20mn&quot;,&#xA;    &quot;Orig. time res.&quot;: &quot;20mn&quot;,&#xA;    &quot;Station code&quot;: &quot;NO0042G&quot;,&#xA;    &quot;Platform code&quot;: &quot;NO0042S&quot;,&#xA;    &quot;Station name&quot;: &quot;Zeppelin mountain (Ny-Ålesund)&quot;,&#xA;    &quot;Station WDCA-ID&quot;: &quot;GAWANO__ZEP&quot;,&#xA;    &quot;Station GAW-ID&quot;: &quot;ZEP&quot;,&#xA;    &quot;Station GAW-Name&quot;: &quot;Zeppelin Mountain (Ny Ålesund)&quot;,&#xA;    &quot;Station land use&quot;: &quot;Gravel and stone&quot;,&#xA;    &quot;Station setting&quot;: &quot;Polar&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;78.90715&quot;,&#xA;    &quot;Station longitude&quot;: &quot;11.88668&quot;,&#xA;    &quot;Station altitude&quot;: &quot;474.0 m&quot;,&#xA;    &quot;Measurement latitude&quot;: &quot;78.90669&quot;,&#xA;    &quot;Measurement longitude&quot;: &quot;11.88934&quot;,&#xA;    &quot;Measurement altitude&quot;: &quot;475.0 m&quot;,&#xA;    &quot;Measurement height&quot;: &quot;4.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Matrix&quot;: &quot;air&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;NO01L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;unspecified_air_grab_sampler&quot;,&#xA;    &quot;Instrument name&quot;: &quot;ZEP_sealed_air_sample&quot;,&#xA;    &quot;Analytical laboratory code&quot;: &quot;NL07L&quot;,&#xA;    &quot;Analytical measurement technique&quot;: &quot;CF-IRMS&quot;,&#xA;    &quot;Analytical instrument name&quot;: &quot;CF-IRMS&quot;,&#xA;    &quot;Analytical instrument manufacturer&quot;: &quot;Thermo Fisher Scientific&quot;,&#xA;    &quot;Analytical instrument model&quot;: &quot;Delta Plus XP&quot;,&#xA;    &quot;Analytical instrument serial number&quot;: &quot;SN7808&quot;,&#xA;    &quot;Method ref&quot;: &quot;NL07L_CF-IRMS&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Hat or hood&quot;,&#xA;    &quot;Inlet description&quot;: &quot;Downward facing with hood. Insulated, heated&quot;,&#xA;    &quot;Inlet tube material&quot;: &quot;Stainless steel&quot;,&#xA;    &quot;Inlet tube length&quot;: &quot;25.0 m&quot;,&#xA;    &quot;Humidity/temperature control&quot;: &quot;Absorption dryer&quot;,&#xA;    &quot;Humidity/temperature control description&quot;: &quot;Sample dried by using drierite.&quot;,&#xA;    &quot;Zero/negative values code&quot;: &quot;Zero/negative possible&quot;,&#xA;    &quot;Organization&quot;: &quot;NO01L, Norwegian Institute for Air Research, NILU, , Instituttveien 18, , 2007, Kjeller, Norway&quot;,&#xA;    &quot;Framework acronym&quot;: &quot;ReGAME&quot;,&#xA;    &quot;Framework name&quot;: &quot;REliable Global Methane Emissions estimates in a changing world&quot;,&#xA;    &quot;Framework contact name&quot;: &quot;Stephen Matthew Platt&quot;,&#xA;    &quot;Framework contact email&quot;: &quot;sp@nilu.no&quot;,&#xA;    &quot;Originator&quot;: &quot;Röckmann, Thomas, t.roeckmann@uu.nl, University of Utrecht, UU, Institute for Marine and Atmospheric Research Utrecht, , , , Utrecht, The Netherlands, ORCID=0000-0002-6688-8968&quot;,&#xA;    &quot;Submitter&quot;: &quot;Röckmann, Thomas, t.roeckmann@uu.nl, University of Utrecht, UU, Institute for Marine and Atmospheric Research Utrecht, , , , Utrecht, The Netherlands, ORCID=0000-0002-6688-8968&quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;If the data are obtained for potential use in a publication or presentation, University of Utrecht (UU), Institute for Marine and Atmospheric Research Utrecht should be informed of the nature of this work. If the UU data are essential to the work, or if an important result or conclusion depends on the UU data, co-authorship may be appropriate. This should be discussed at an early stage in the work. Contacts: Professor Dr Thomas Röckmann t.roeckmann_at_uu.nl and Dr Carina van der Veen C.vanderVeen_at_uu.nl&quot;&#xA;}" />
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  <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="466" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <dimension name="delta_D_methane_amean_qc_flags" length="1" />
  <dimension name="delta_D_methane_stddev_qc_flags" length="1" />
  <dimension name="methane_amean_qc_flags" length="1" />
  <dimension name="methane_stddev_qc_flags" length="1" />
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    <attribute name="time_coverage_end" value="2021-10-19T07:53:00Z" />
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    <attribute name="long_name" value="time bounds for measurement" />
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    <attribute name="ebas_humidity_temperaure_control_description" value="Sample dried by using drierite." />
    <attribute name="ebas_measurement_uncertainty" value="2.3 ‰" />
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    <attribute name="ebas_organization" value="NO01L, Norwegian Institute for Air Research, NILU, , Instituttveien 18, , 2007, Kjeller, Norway" />
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    <attribute name="ebas_framework_name" value="REliable Global Methane Emissions estimates in a changing world" />
    <attribute name="ebas_framework_contact_name" value="Stephen Matthew Platt" />
    <attribute name="ebas_framework_contact_email" value="sp@nilu.no" />
    <attribute name="ebas_originator" value="Röckmann, Thomas, t.roeckmann@uu.nl, University of Utrecht, UU, Institute for Marine and Atmospheric Research Utrecht, , , , Utrecht, The Netherlands, ORCID=0000-0002-6688-8968" />
    <attribute name="ebas_submitter" value="Röckmann, Thomas, t.roeckmann@uu.nl, University of Utrecht, UU, Institute for Marine and Atmospheric Research Utrecht, , , , Utrecht, The Netherlands, ORCID=0000-0002-6688-8968" />
    <attribute name="ebas_acknowledgement" value="If the data are obtained for potential use in a publication or presentation, University of Utrecht (UU), Institute for Marine and Atmospheric Research Utrecht should be informed of the nature of this work. If the UU data are essential to the work, or if an important result or conclusion depends on the UU data, co-authorship may be appropriate. This should be discussed at an early stage in the work. Contacts: Professor Dr Thomas Röckmann t.roeckmann_at_uu.nl and Dr Carina van der Veen C.vanderVeen_at_uu.nl" />
  </variable>
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    <attribute name="units" value="‰" />
    <attribute name="ancillary_variables" value="delta_D_methane_stddev_qc delta_D_methane_stddev_ebasmetadata" />
    <attribute name="cell_methods" value="time: standard_deviation" />
    <attribute name="ebas_revision_date" value="20230621082254" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, automatically generated, manually inspected" />
    <attribute name="ebas_statistics" value="stddev" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="20mn" />
    <attribute name="ebas_orig_time_res" value="20mn" />
    <attribute name="ebas_station_code" value="NO0042G" />
    <attribute name="ebas_platform_code" value="NO0042S" />
    <attribute name="ebas_station_name" value="Zeppelin mountain (Ny-Ålesund)" />
    <attribute name="ebas_station_wdca_id" value="GAWANO__ZEP" />
    <attribute name="ebas_station_gaw_id" value="ZEP" />
    <attribute name="ebas_station_gaw_name" value="Zeppelin Mountain (Ny Ålesund)" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Polar" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="78.90715" />
    <attribute name="ebas_station_longitude" value="11.88668" />
    <attribute name="ebas_station_altitude" value="474.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="78.90669" />
    <attribute name="ebas_measurement_longitude" value="11.88934" />
    <attribute name="ebas_measurement_altitude" value="475.0 m" />
    <attribute name="ebas_measurement_height" value="4.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="delta_D_methane" />
    <attribute name="ebas_unit" value="‰" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="NO01L" />
    <attribute name="ebas_instrument_type" value="unspecified_air_grab_sampler" />
    <attribute name="ebas_instrument_name" value="ZEP_sealed_air_sample" />
    <attribute name="ebas_analytical_laboratory_code" value="NL07L" />
    <attribute name="ebas_analytical_measurement_technique" value="CF-IRMS" />
    <attribute name="ebas_analytical_instrument_name" value="CF-IRMS" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Fisher Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Delta Plus XP" />
    <attribute name="ebas_analytical_instrument_serial_number" value="SN7808" />
    <attribute name="ebas_method_ref" value="NL07L_CF-IRMS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood. Insulated, heated" />
    <attribute name="ebas_inlet_tube_material" value="Stainless steel" />
    <attribute name="ebas_inlet_tube_length" value="25.0 m" />
    <attribute name="ebas_humidity_temperaure_control" value="Absorption dryer" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Sample dried by using drierite." />
    <attribute name="ebas_measurement_uncertainty" value="2.3 ‰" />
    <attribute name="ebas_measurement_uncertainty_expl" value="delta_D_methane analysis (CF-IRMS) at UU is with a precision of 2.3‰." />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_organization" value="NO01L, Norwegian Institute for Air Research, NILU, , Instituttveien 18, , 2007, Kjeller, Norway" />
    <attribute name="ebas_framework_acronym" value="ReGAME" />
    <attribute name="ebas_framework_name" value="REliable Global Methane Emissions estimates in a changing world" />
    <attribute name="ebas_framework_contact_name" value="Stephen Matthew Platt" />
    <attribute name="ebas_framework_contact_email" value="sp@nilu.no" />
    <attribute name="ebas_originator" value="Röckmann, Thomas, t.roeckmann@uu.nl, University of Utrecht, UU, Institute for Marine and Atmospheric Research Utrecht, , , , Utrecht, The Netherlands, ORCID=0000-0002-6688-8968" />
    <attribute name="ebas_submitter" value="Röckmann, Thomas, t.roeckmann@uu.nl, University of Utrecht, UU, Institute for Marine and Atmospheric Research Utrecht, , , , Utrecht, The Netherlands, ORCID=0000-0002-6688-8968" />
    <attribute name="ebas_acknowledgement" value="If the data are obtained for potential use in a publication or presentation, University of Utrecht (UU), Institute for Marine and Atmospheric Research Utrecht should be informed of the nature of this work. If the UU data are essential to the work, or if an important result or conclusion depends on the UU data, co-authorship may be appropriate. This should be discussed at an early stage in the work. Contacts: Professor Dr Thomas Röckmann t.roeckmann_at_uu.nl and Dr Carina van der Veen C.vanderVeen_at_uu.nl" />
  </variable>
  <variable name="delta_D_methane_stddev_qc" shape="delta_D_methane_stddev_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="delta_D_methane_stddev_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="methane_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_methane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="methane_amean_qc methane_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_revision_date" value="20230621082254" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, automatically generated, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="20mn" />
    <attribute name="ebas_orig_time_res" value="20mn" />
    <attribute name="ebas_station_code" value="NO0042G" />
    <attribute name="ebas_platform_code" value="NO0042S" />
    <attribute name="ebas_station_name" value="Zeppelin mountain (Ny-Ålesund)" />
    <attribute name="ebas_station_wdca_id" value="GAWANO__ZEP" />
    <attribute name="ebas_station_gaw_id" value="ZEP" />
    <attribute name="ebas_station_gaw_name" value="Zeppelin Mountain (Ny Ålesund)" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Polar" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="78.90715" />
    <attribute name="ebas_station_longitude" value="11.88668" />
    <attribute name="ebas_station_altitude" value="474.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="78.90669" />
    <attribute name="ebas_measurement_longitude" value="11.88934" />
    <attribute name="ebas_measurement_altitude" value="475.0 m" />
    <attribute name="ebas_measurement_height" value="4.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="methane" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="NO01L" />
    <attribute name="ebas_instrument_type" value="unspecified_air_grab_sampler" />
    <attribute name="ebas_instrument_name" value="ZEP_sealed_air_sample" />
    <attribute name="ebas_analytical_laboratory_code" value="NL07L" />
    <attribute name="ebas_analytical_measurement_technique" value="CF-IRMS" />
    <attribute name="ebas_analytical_instrument_name" value="CF-IRMS" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Fisher Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Delta Plus XP" />
    <attribute name="ebas_analytical_instrument_serial_number" value="SN7808" />
    <attribute name="ebas_method_ref" value="NL07L_CF-IRMS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood. Insulated, heated" />
    <attribute name="ebas_inlet_tube_material" value="Stainless steel" />
    <attribute name="ebas_inlet_tube_length" value="25.0 m" />
    <attribute name="ebas_humidity_temperaure_control" value="Absorption dryer" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Sample dried by using drierite." />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_organization" value="NO01L, Norwegian Institute for Air Research, NILU, , Instituttveien 18, , 2007, Kjeller, Norway" />
    <attribute name="ebas_framework_acronym" value="ReGAME" />
    <attribute name="ebas_framework_name" value="REliable Global Methane Emissions estimates in a changing world" />
    <attribute name="ebas_framework_contact_name" value="Stephen Matthew Platt" />
    <attribute name="ebas_framework_contact_email" value="sp@nilu.no" />
    <attribute name="ebas_originator" value="Röckmann, Thomas, t.roeckmann@uu.nl, University of Utrecht, UU, Institute for Marine and Atmospheric Research Utrecht, , , , Utrecht, The Netherlands, ORCID=0000-0002-6688-8968" />
    <attribute name="ebas_submitter" value="Röckmann, Thomas, t.roeckmann@uu.nl, University of Utrecht, UU, Institute for Marine and Atmospheric Research Utrecht, , , , Utrecht, The Netherlands, ORCID=0000-0002-6688-8968" />
    <attribute name="ebas_acknowledgement" value="If the data are obtained for potential use in a publication or presentation, University of Utrecht (UU), Institute for Marine and Atmospheric Research Utrecht should be informed of the nature of this work. If the UU data are essential to the work, or if an important result or conclusion depends on the UU data, co-authorship may be appropriate. This should be discussed at an early stage in the work. Contacts: Professor Dr Thomas Röckmann t.roeckmann_at_uu.nl and Dr Carina van der Veen C.vanderVeen_at_uu.nl" />
    <attribute name="ebas_comment" value="Methane mixing ratios determined via additional measurements with a Picarro CRDS G2401 due to high standard deviation of the CF-IRMS measurement in some cases" />
  </variable>
  <variable name="methane_amean_qc" shape="methane_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="methane_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="methane_stddev" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_methane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="methane_stddev_qc methane_stddev_ebasmetadata" />
    <attribute name="cell_methods" value="time: standard_deviation" />
    <attribute name="ebas_revision_date" value="20230621082254" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, automatically generated, manually inspected" />
    <attribute name="ebas_statistics" value="stddev" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="20mn" />
    <attribute name="ebas_orig_time_res" value="20mn" />
    <attribute name="ebas_station_code" value="NO0042G" />
    <attribute name="ebas_platform_code" value="NO0042S" />
    <attribute name="ebas_station_name" value="Zeppelin mountain (Ny-Ålesund)" />
    <attribute name="ebas_station_wdca_id" value="GAWANO__ZEP" />
    <attribute name="ebas_station_gaw_id" value="ZEP" />
    <attribute name="ebas_station_gaw_name" value="Zeppelin Mountain (Ny Ålesund)" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Polar" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="78.90715" />
    <attribute name="ebas_station_longitude" value="11.88668" />
    <attribute name="ebas_station_altitude" value="474.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="78.90669" />
    <attribute name="ebas_measurement_longitude" value="11.88934" />
    <attribute name="ebas_measurement_altitude" value="475.0 m" />
    <attribute name="ebas_measurement_height" value="4.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="methane" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="NO01L" />
    <attribute name="ebas_instrument_type" value="unspecified_air_grab_sampler" />
    <attribute name="ebas_instrument_name" value="ZEP_sealed_air_sample" />
    <attribute name="ebas_analytical_laboratory_code" value="NL07L" />
    <attribute name="ebas_analytical_measurement_technique" value="CF-IRMS" />
    <attribute name="ebas_analytical_instrument_name" value="CF-IRMS" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Fisher Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Delta Plus XP" />
    <attribute name="ebas_analytical_instrument_serial_number" value="SN7808" />
    <attribute name="ebas_method_ref" value="NL07L_CF-IRMS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood. Insulated, heated" />
    <attribute name="ebas_inlet_tube_material" value="Stainless steel" />
    <attribute name="ebas_inlet_tube_length" value="25.0 m" />
    <attribute name="ebas_humidity_temperaure_control" value="Absorption dryer" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Sample dried by using drierite." />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_organization" value="NO01L, Norwegian Institute for Air Research, NILU, , Instituttveien 18, , 2007, Kjeller, Norway" />
    <attribute name="ebas_framework_acronym" value="ReGAME" />
    <attribute name="ebas_framework_name" value="REliable Global Methane Emissions estimates in a changing world" />
    <attribute name="ebas_framework_contact_name" value="Stephen Matthew Platt" />
    <attribute name="ebas_framework_contact_email" value="sp@nilu.no" />
    <attribute name="ebas_originator" value="Röckmann, Thomas, t.roeckmann@uu.nl, University of Utrecht, UU, Institute for Marine and Atmospheric Research Utrecht, , , , Utrecht, The Netherlands, ORCID=0000-0002-6688-8968" />
    <attribute name="ebas_submitter" value="Röckmann, Thomas, t.roeckmann@uu.nl, University of Utrecht, UU, Institute for Marine and Atmospheric Research Utrecht, , , , Utrecht, The Netherlands, ORCID=0000-0002-6688-8968" />
    <attribute name="ebas_acknowledgement" value="If the data are obtained for potential use in a publication or presentation, University of Utrecht (UU), Institute for Marine and Atmospheric Research Utrecht should be informed of the nature of this work. If the UU data are essential to the work, or if an important result or conclusion depends on the UU data, co-authorship may be appropriate. This should be discussed at an early stage in the work. Contacts: Professor Dr Thomas Röckmann t.roeckmann_at_uu.nl and Dr Carina van der Veen C.vanderVeen_at_uu.nl" />
    <attribute name="ebas_comment" value="Methane mixing ratios determined via additional measurements with a Picarro CRDS G2401 due to high standard deviation of the CF-IRMS measurement in some cases" />
  </variable>
  <variable name="methane_stddev_qc" shape="methane_stddev_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="methane_stddev_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>
