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  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Dinitrogen_monoxide at Zeppelin mountain (Ny-Ålesund)" />
  <attribute name="summary" value="Dinitrogen_monoxide at Zeppelin mountain (Ny-Ålesund). These measurements are gathered as a part of the following projects NILU and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ['dinitrogen_monoxide in air (mass_fraction_of_dinitrogen_monoxide_in_air)']" />
  <attribute name="keywords" value="&quot;Zeppelin mountain (Ny-Ålesund)&quot; NO0042G dinitrogen_monoxide air NILU mass_fraction_of_dinitrogen_monoxide_in_air" />
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  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="NILU" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/XDVZ-YJCJ" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Lund Myhre, C., Hermansen, O., Lund-Myhre, C., Platt, S., NILU, 2026, Dinitrogen_monoxide at Zeppelin mountain (Ny-Ålesund), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/XDVZ-YJCJ" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="NO01L &quot;Norwegian Institute for Air Research&quot; NILU &quot;Instituttveien 18&quot; 2007 Kjeller Norway" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2026-03-11T15:52:45.444520Z" />
  <attribute name="date_metadata_modified" value="2026-03-11T15:52:45Z" />
  <attribute name="creator_name" value="Cathrine Lund Myhre, Ove Hermansen, Cathrine Lund-Myhre, Stephen Matthew Platt" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="clm@nilu.no, oh@nilu.no, clm@nilu.no, sp@nilu.no" />
  <attribute name="creator_institution" value="&quot;Norwegian Institute for Air Research, Atmosphere and Climate Department, NILU&quot;, &quot;Norwegian Institute for Air Research, Atmosphere and Climate Department, NILU&quot;, &quot;Norwegian Institute for Air Research, ATMOS, NILU&quot;, &quot;Norwegian Institute for Air Research, Atmosphere and Climate Department, NILU&quot;" />
  <attribute name="contributor_name" value="Ove Hermansen" />
  <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 (11.88668 78.90715 489)" />
  <attribute name="geospatial_lat_min" type="double" value="78.90715" />
  <attribute name="geospatial_lat_max" type="double" value="78.90715" />
  <attribute name="geospatial_lon_min" type="double" value="11.88668" />
  <attribute name="geospatial_lon_max" type="double" value="11.88668" />
  <attribute name="geospatial_vertical_min" type="double" value="489.0" />
  <attribute name="geospatial_vertical_max" type="double" value="489.0" />
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  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2018-01-01T00:00:00Z" />
  <attribute name="time_coverage_end" value="2026-01-01T00:00:00Z" />
  <attribute name="time_coverage_duration" value="P0008-00-00T00:00:00" />
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  <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="Lund Myhre, C., Hermansen, O., Lund-Myhre, C., Platt, S., NILU, 2026, Dinitrogen_monoxide at Zeppelin mountain (Ny-Ålesund), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/XDVZ-YJCJ" />
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  <attribute name="ebas_file_creation" value="2026-05-22T03:08:09.772722Z" />
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  <attribute name="ebas_startdate" value="2018-01-01T00:00:00.000000Z" />
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  <attribute name="ebas_version_description" value="initial revision, manually inspected" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="8y" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_sample_duration" value="1h" />
  <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" type="long" value="6" />
  <attribute name="ebas_station_latitude" type="double" value="78.90715" />
  <attribute name="ebas_station_longitude" type="double" value="11.88668" />
  <attribute name="ebas_station_altitude" value="474.0 m" />
  <attribute name="ebas_measurement_altitude" value="489.0 m" />
  <attribute name="ebas_measurement_height" value="15.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_component" value="dinitrogen_monoxide" />
  <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="online_crds" />
  <attribute name="ebas_instrument_name" value="picarro2_G5310_ICOS" />
  <attribute name="ebas_instrument_manufacturer" value="Picarro" />
  <attribute name="ebas_instrument_model" value="G5310" />
  <attribute name="ebas_instrument_serial_number" value="JKADS5052" />
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  <attribute name="ebas_secondary_standard_id" value="ICOS" />
  <attribute name="ebas_inlet_type" value="Hat or hood" />
  <attribute name="ebas_inlet_description" value="Downward facing with hood" />
  <attribute name="ebas_detection_limit" value="0.0 nmol/mol" />
  <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
  <attribute name="ebas_measurement_uncertainty" value="0.1 nmol/mol" />
  <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) + systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
  <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="NO01L, Norwegian Institute for Air Research, NILU, , Instituttveien 18, , 2007, Kjeller, Norway" />
  <attribute name="ebas_framework_acronym" value="NILU" />
  <attribute name="ebas_framework_name" value="Norwegian Institute for Air Research" />
  <attribute name="ebas_framework_description" value="Atmospheric measuremnts produced at NILU." />
  <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
  <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
  <attribute name="ebas_originator" value="&quot;Lund Myhre, Cathrine, clm@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0003-3587-5926&quot;, &quot;Hermansen, Ove, oh@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0001-7353-057X&quot;, &quot;Lund-Myhre, Cathrine, clm@nilu.no, Norwegian Institute for Air Research, NILU, ATMOS, Instituttveien 18, , N-2027, Kjeller, Norway&quot;, &quot;Platt, Stephen Matthew, sp@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0003-3587-5926&quot;" />
  <attribute name="ebas_submitter" value="&quot;Hermansen, Ove, oh@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0001-7353-057X&quot;" />
  <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: NILU. Request acknowledgement details from data originator" />
  <attribute name="ebas_comment" value="SOP currently not available" />
  <attribute name="_NCProperties" value="version=2,netcdf=4.9.3,hdf5=1.14.6" />
  <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="standard_name_vocabulary" value="CF-1.7, ACDD-1.3" />
  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
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  <dimension name="time" length="61368" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="7" />
  <dimension name="qc_dinitrogen_monoxide_amean_flags" length="1" />
  <dimension name="qc_dinitrogen_monoxide_stddev_flags" length="2" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2018-01-01T00:30:00Z" />
    <attribute name="time_coverage_end" value="2025-12-31T23:30:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
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    <attribute name="time_coverage_duration" value="P0Y0M2921DT23H0M0.000S" />
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    <attribute name="metadata_creation" value="2026-06-05" />
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    <attribute name="long_name" value="time bounds for measurement" />
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    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
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    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="qc_dinitrogen_monoxide_amean meta_dinitrogen_monoxide_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
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    <attribute name="ebas_station_wmo_region" type="long" value="6" />
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    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) + systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: NILU. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="SOP currently not available" />
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    <attribute name="ebas_instrument_manufacturer" value="Picarro" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Lund Myhre, Cathrine, clm@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0003-3587-5926&quot;, &quot;Hermansen, Ove, oh@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0001-7353-057X&quot;, &quot;Lund-Myhre, Cathrine, clm@nilu.no, Norwegian Institute for Air Research, NILU, ATMOS, Instituttveien 18, , N-2027, Kjeller, Norway&quot;, &quot;Platt, Stephen Matthew, sp@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0003-3587-5926&quot;" />
    <attribute name="ebas_submitter" value="&quot;Hermansen, Ove, oh@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0001-7353-057X&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: NILU. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="SOP currently not available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/nitrousoxideamountfraction" />
    <attribute name="actris_variable_preferred_term" value="nitrous oxide amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/cavityring-downspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="cavity ring-down spectrometer" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/NILU" />
    <attribute name="actris_framework_preferred_term" value="NILU" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_dinitrogen_monoxide_stddev" shape="qc_dinitrogen_monoxide_stddev_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="meta_dinitrogen_monoxide_stddev" 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 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <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 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
