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  <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="NV5Q-GVFP.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, the University of Utrecht (UU), Institute for Marine and Atmospheric Research Utrecht, and the Climate and Environment Research Institute NILU should be informed about the nature of this work. If the UU and NILU data are essential to the study or if important results or conclusions rely on the UU and NILU data, co-authorship may be appropriate. This matter should be discussed at an early stage in the research. Contacts: Professor Dr. Thomas Röckmann (t.roeckmann@uu.nl), Dr. Carina van der Veen (C.vanderVeen@uu.nl), and Dr. Stephen Platt (sp@nilu.no) from NILU." />
  <attribute name="doi" value="https://doi.org/10.48597/NV5Q-GVFP" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Stephen M. Platt, Thomas Röckmann, 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/NV5Q-GVFP" />
  <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="2023-04-26T00:00:00 UTC" />
  <attribute name="date_metadata_modified" value="2023-04-26T00:00:00 UTC" />
  <attribute name="creator_name" value="Stephen M. Platt, Thomas Röckmann, Stephen M. Platt, Thomas Röckmann" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="sp@nilu.no, t.roeckmann@uu.nl, 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;, &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, Thomas Röckmann" />
  <attribute name="contributor_role" value="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 (78.90669 11.88934 475.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
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  <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="2023-02-14T08:30:00 UTC" />
  <attribute name="time_coverage_duration" value="P0010-04-27T01:05:00" />
  <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_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Stephen M. Platt, Thomas Röckmann, 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/NV5Q-GVFP" />
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  <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" />
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  <attribute name="ebas_station_gaw_name" value="Zeppelin Mountain (Ny Ålesund)" />
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  <attribute name="ebas_station_altitude" value="474.0 m" />
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  <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" />
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  <attribute name="ebas_analytical_instrument_serial_number" value="SN7808" />
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  <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_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_description" value="In ReGAME, Reliable Global Methane Emissions estimates in a changing world, we integrate new measurement technologies into models to determine why atmospheric methane (CH4) is increasing, and whether climate-sensitive Arctic CH4 reservoirs will release significant CH4 to the atmosphere" />
  <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, the University of Utrecht (UU), Institute for Marine and Atmospheric Research Utrecht, and the Climate and Environment Research Institute NILU should be informed about the nature of this work. If the UU and NILU data are essential to the study or if important results or conclusions rely on the UU and NILU data, co-authorship may be appropriate. This matter should be discussed at an early stage in the research. Contacts: Professor Dr. Thomas Röckmann (t.roeckmann@uu.nl), Dr. Carina van der Veen (C.vanderVeen@uu.nl), and Dr. Stephen Platt (sp@nilu.no) from NILU." />
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  <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;Stephen M. Platt, Thomas Röckmann, 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/NV5Q-GVFP&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;NV5Q-GVFP.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/NV5Q-GVFP&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/NV5Q-GVFP&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-10T14:07:57.094378 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2023-06-21T11:49:04.752212 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;20230426000000&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;10y&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 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 description&quot;: &quot;In ReGAME, Reliable Global Methane Emissions estimates in a changing world, we integrate new measurement technologies into models to determine why atmospheric methane (CH4) is increasing, and whether climate-sensitive Arctic CH4 reservoirs will release significant CH4 to the atmosphere&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, the University of Utrecht (UU), Institute for Marine and Atmospheric Research Utrecht, and the Climate and Environment Research Institute NILU should be informed about the nature of this work. If the UU and NILU data are essential to the study or if important results or conclusions rely on the UU and NILU data, co-authorship may be appropriate. This matter should be discussed at an early stage in the research. Contacts: Professor Dr. Thomas Röckmann (t.roeckmann@uu.nl), Dr. Carina van der Veen (C.vanderVeen@uu.nl), and Dr. Stephen Platt (sp@nilu.no) from NILU.&quot;&#xA;}" />
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  <dimension name="tbnds" length="2" />
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    <attribute name="ebas_acknowledgement" value="If the data are obtained for potential use in a publication or presentation, the University of Utrecht (UU), Institute for Marine and Atmospheric Research Utrecht, and the Climate and Environment Research Institute NILU should be informed about the nature of this work. If the UU and NILU data are essential to the study or if important results or conclusions rely on the UU and NILU data, co-authorship may be appropriate. This matter should be discussed at an early stage in the research. Contacts: Professor Dr. Thomas Röckmann (t.roeckmann@uu.nl), Dr. Carina van der Veen (C.vanderVeen@uu.nl), and Dr. Stephen Platt (sp@nilu.no) from NILU." />
  </variable>
  <variable name="delta_D_methane_amean_qc" shape="delta_D_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="delta_D_methane_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="delta_D_methane_stddev" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_deltaDmethane_in_methane" />
    <attribute name="missing_value" type="double" value="NaN" />
    <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_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230426000000" />
    <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" />
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    <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_length" value="25.0 m" />
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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 ‰" />
    <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_description" value="In ReGAME, Reliable Global Methane Emissions estimates in a changing world, we integrate new measurement technologies into models to determine why atmospheric methane (CH4) is increasing, and whether climate-sensitive Arctic CH4 reservoirs will release significant CH4 to the atmosphere" />
    <attribute name="ebas_framework_contact_name" value="Stephen Matthew Platt" />
    <attribute name="ebas_framework_contact_email" value="sp@nilu.no" />
    <attribute name="ebas_acknowledgement" value="If the data are obtained for potential use in a publication or presentation, the University of Utrecht (UU), Institute for Marine and Atmospheric Research Utrecht, and the Climate and Environment Research Institute NILU should be informed about the nature of this work. If the UU and NILU data are essential to the study or if important results or conclusions rely on the UU and NILU data, co-authorship may be appropriate. This matter should be discussed at an early stage in the research. Contacts: Professor Dr. Thomas Röckmann (t.roeckmann@uu.nl), Dr. Carina van der Veen (C.vanderVeen@uu.nl), and Dr. Stephen Platt (sp@nilu.no) from NILU." />
  </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_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230426000000" />
    <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" />
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    <attribute name="ebas_analytical_instrument_name" value="CF-IRMS" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Fisher Scientific" />
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    <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_length" value="25.0 m" />
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    <attribute name="ebas_humidity_temperaure_control_description" value="Sample dried by using drierite." />
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    <attribute name="ebas_framework_name" value="REliable Global Methane Emissions estimates in a changing world" />
    <attribute name="ebas_framework_description" value="In ReGAME, Reliable Global Methane Emissions estimates in a changing world, we integrate new measurement technologies into models to determine why atmospheric methane (CH4) is increasing, and whether climate-sensitive Arctic CH4 reservoirs will release significant CH4 to the atmosphere" />
    <attribute name="ebas_framework_contact_name" value="Stephen Matthew Platt" />
    <attribute name="ebas_framework_contact_email" value="sp@nilu.no" />
    <attribute name="ebas_acknowledgement" value="If the data are obtained for potential use in a publication or presentation, the University of Utrecht (UU), Institute for Marine and Atmospheric Research Utrecht, and the Climate and Environment Research Institute NILU should be informed about the nature of this work. If the UU and NILU data are essential to the study or if important results or conclusions rely on the UU and NILU data, co-authorship may be appropriate. This matter should be discussed at an early stage in the research. Contacts: Professor Dr. Thomas Röckmann (t.roeckmann@uu.nl), Dr. Carina van der Veen (C.vanderVeen@uu.nl), and Dr. Stephen Platt (sp@nilu.no) from NILU." />
    <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" />
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    <attribute name="units" value="nmol/mol" />
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    <attribute name="cell_methods" value="time: standard_deviation" />
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    <attribute name="ebas_version_description" value="initial revision, automatically generated, manually inspected" />
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    <attribute name="ebas_sample_duration" value="20mn" />
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    <attribute name="ebas_station_name" value="Zeppelin mountain (Ny-Ålesund)" />
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    <attribute name="ebas_station_gaw_name" value="Zeppelin Mountain (Ny Ålesund)" />
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    <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" />
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    <attribute name="ebas_measurement_altitude" value="475.0 m" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="methane" />
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    <attribute name="ebas_framework_contact_name" value="Stephen Matthew Platt" />
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    <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">
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  <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" />
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    <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>
