<?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="Inorganics in air and particle phase at Zingst" />
  <attribute name="keywords" value="ammonium, mass_concentration_of_ammonium_in_pm2p5_in_air, pm25, HELCOM, EMEP_preliminary, Zingst, DE0009R, mass_concentration_of_nitrate_in_pm2p5_in_air, nitrate" />
  <attribute name="id" value="VPN8-FV85.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="EMEP_preliminary, HELCOM" />
  <attribute name="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 frameworks: EMEP_preliminary, HELCOM. Request acknowledgement details from data originator" />
  <attribute name="doi" value="https://doi.org/10.48597/VPN8-FV85" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Bieber, E., 2019, Inorganics in air and particle phase at Zingst, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/VPN8-FV85" />
  <attribute name="summary" value="Inorganics in air and particle phase at Zingst. These measurements are gathered as a part of the following projects EMEP_preliminary, HELCOM and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ammonium in pm25 (mass_concentration_of_ammonium_in_pm2p5_in_air), ammonium in pm25 (mass_concentration_of_ammonium_in_pm2p5_in_air), nitrate in pm25 (mass_concentration_of_nitrate_in_pm2p5_in_air), nitrate in pm25 (mass_concentration_of_nitrate_in_pm2p5_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="DE03L, Umweltbundesamt, UBA-LA, Langen, Paul-Ehrlich-Str. 29, 63225, Langen, Germany" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2019-02-12T10:08:21 UTC" />
  <attribute name="date_metadata_modified" value="2019-02-12T10:08:21 UTC" />
  <attribute name="creator_name" value="Elke Bieber" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="" />
  <attribute name="creator_institution" value="" />
  <attribute name="contributor_name" value="Stefan Feigenspan" />
  <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 (54.4368 12.7249 1.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="54.4368" />
  <attribute name="geospatial_lat_max" type="double" value="54.4368" />
  <attribute name="geospatial_lon_min" type="double" value="12.7249" />
  <attribute name="geospatial_lon_max" type="double" value="12.7249" />
  <attribute name="geospatial_vertical_min" type="double" value="1.0" />
  <attribute name="geospatial_vertical_max" type="double" value="1.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2017-01-02T23:00:00 UTC" />
  <attribute name="time_coverage_end" value="2017-12-29T23:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0000-11-27T00:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-06T00:00:00" />
  <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="Bieber, E., 2019, Inorganics in air and particle phase at Zingst, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/VPN8-FV85" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="VPN8-FV85.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/VPN8-FV85" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/VPN8-FV85" />
  <attribute name="ebas_file_creation" value="2024-02-18T13:38:31.716480 UTC" />
  <attribute name="ebas_export_state" value="2018-11-27T11:55:50.173000 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="20170102230000" />
  <attribute name="ebas_revision_date" value="20190212100821" />
  <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_period_code" value="1y" />
  <attribute name="ebas_resolution_code" value="6d" />
  <attribute name="ebas_sample_duration" value="1d" />
  <attribute name="ebas_orig_time_res" value="6d" />
  <attribute name="ebas_station_code" value="DE0009R" />
  <attribute name="ebas_platform_code" value="DE0009S" />
  <attribute name="ebas_station_name" value="Zingst" />
  <attribute name="ebas_station_gaw_id" value="ZGT" />
  <attribute name="ebas_station_gaw_name" value="Zingst" />
  <attribute name="ebas_station_other_ids" value="DEUB028 (UBA)" />
  <attribute name="ebas_station_land_use" value="Grassland" />
  <attribute name="ebas_station_setting" value="Coastal" />
  <attribute name="ebas_station_gaw_type" value="C" />
  <attribute name="ebas_station_wmo_region" value="6" />
  <attribute name="ebas_station_latitude" value="54.4368" />
  <attribute name="ebas_station_longitude" value="12.7249" />
  <attribute name="ebas_station_altitude" value="1.0 m" />
  <attribute name="ebas_measurement_height" value="1.6 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="pm25" />
  <attribute name="ebas_laboratory_code" value="DE03L" />
  <attribute name="ebas_instrument_type" value="low_vol_sampler" />
  <attribute name="ebas_instrument_name" value="UBA_Zg_LVS_0301" />
  <attribute name="ebas_instrument_manufacturer" value="Leckel" />
  <attribute name="ebas_instrument_model" value="SEQ47/50" />
  <attribute name="ebas_analytical_laboratory_code" value="DE41L" />
  <attribute name="ebas_analytical_measurement_technique" value="IC" />
  <attribute name="ebas_analytical_instrument_name" value="Ext_Sy_CIC_0001" />
  <attribute name="ebas_analytical_instrument_manufacturer" value="Metrohm" />
  <attribute name="ebas_analytical_instrument_model" value="881 Compact IC pro" />
  <attribute name="ebas_method_ref" value="DE41L_Ext_Sy_CIC_0001" />
  <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
  <attribute name="ebas_inlet_type" value="Impactor--direct" />
  <attribute name="ebas_inlet_description" value="PM 2.5, upward facing" />
  <attribute name="ebas_flow_rate" value="38.333333333333336 l/min" />
  <attribute name="ebas_filter_face_velocity" value="53.5 cm/s" />
  <attribute name="ebas_exposed_filter_area" value="11.9 cm2" />
  <attribute name="ebas_filter_description" value="MK 360" />
  <attribute name="ebas_medium" value="Quartz" />
  <attribute name="ebas_filter_prefiring" value="1123.15 K, 3.0 h" />
  <attribute name="ebas_filter_conditioning" value="None" />
  <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
  <attribute name="ebas_blank_correction" value="Blank corrected" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions" />
  <attribute name="ebas_volume_std_temperature" value="293.15 K" />
  <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
  <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of laboratory blanks" />
  <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
  <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as half of detection limit, flagged with 780" />
  <attribute name="ebas_organization" value="DE03L, Umweltbundesamt, UBA-LA, Langen, Paul-Ehrlich-Str. 29, , 63225, Langen, Germany" />
  <attribute name="ebas_framework_acronym" value="EMEP_preliminary, HELCOM" />
  <attribute name="ebas_framework_name" value="Preliminary data submissions for European Monitoring and Evaluation Programme, Baltic Marine Environment Protection Commission - Helsinki Commission" />
  <attribute name="ebas_framework_description" value="The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., Atmospheric monitoring data for the assessment of the atmospheric input of selected contaminants to the Baltic sea area." />
  <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Kjetil Tørseth" />
  <attribute name="ebas_framework_contact_email" value="kt@nilu.no, kt@nilu.no" />
  <attribute name="ebas_originator" value="Bieber, Elke, , , , , , , , , " />
  <attribute name="ebas_submitter" value="Feigenspan, Stefan, stefan.feigenspan@uba.de, Umweltbundesamt, UBA, Air Quality Assessment, Woerlitzer Platz 1, , 06844, Dessau-Rosslau, Germany" />
  <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 frameworks: EMEP_preliminary, HELCOM. 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;Bieber, E., 2019, Inorganics in air and particle phase at Zingst, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/VPN8-FV85&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;VPN8-FV85.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/VPN8-FV85&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/VPN8-FV85&quot;,&#xA;    &quot;File creation&quot;: &quot;2024-02-18T13:38:31.716480 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2018-11-27T11:55:50.173000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20170102230000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20190212100821&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Version description&quot;: &quot;initial revision, automatically generated, 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;1y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;6d&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1d&quot;,&#xA;    &quot;Orig. time res.&quot;: &quot;6d&quot;,&#xA;    &quot;Station code&quot;: &quot;DE0009R&quot;,&#xA;    &quot;Platform code&quot;: &quot;DE0009S&quot;,&#xA;    &quot;Station name&quot;: &quot;Zingst&quot;,&#xA;    &quot;Station GAW-ID&quot;: &quot;ZGT&quot;,&#xA;    &quot;Station GAW-Name&quot;: &quot;Zingst&quot;,&#xA;    &quot;Station other IDs&quot;: &quot;DEUB028 (UBA)&quot;,&#xA;    &quot;Station land use&quot;: &quot;Grassland&quot;,&#xA;    &quot;Station setting&quot;: &quot;Coastal&quot;,&#xA;    &quot;Station GAW type&quot;: &quot;C&quot;,&#xA;    &quot;Station WMO region&quot;: &quot;6&quot;,&#xA;    &quot;Station latitude&quot;: &quot;54.4368&quot;,&#xA;    &quot;Station longitude&quot;: &quot;12.7249&quot;,&#xA;    &quot;Station altitude&quot;: &quot;1.0 m&quot;,&#xA;    &quot;Measurement height&quot;: &quot;1.6 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Matrix&quot;: &quot;pm25&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;DE03L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;low_vol_sampler&quot;,&#xA;    &quot;Instrument name&quot;: &quot;UBA_Zg_LVS_0301&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;Leckel&quot;,&#xA;    &quot;Instrument model&quot;: &quot;SEQ47/50&quot;,&#xA;    &quot;Analytical laboratory code&quot;: &quot;DE41L&quot;,&#xA;    &quot;Analytical measurement technique&quot;: &quot;IC&quot;,&#xA;    &quot;Analytical instrument name&quot;: &quot;Ext_Sy_CIC_0001&quot;,&#xA;    &quot;Analytical instrument manufacturer&quot;: &quot;Metrohm&quot;,&#xA;    &quot;Analytical instrument model&quot;: &quot;881 Compact IC pro&quot;,&#xA;    &quot;Method ref&quot;: &quot;DE41L_Ext_Sy_CIC_0001&quot;,&#xA;    &quot;Standard method&quot;: &quot;SOP=EMEP_manual_v2014&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Impactor--direct&quot;,&#xA;    &quot;Inlet description&quot;: &quot;PM 2.5, upward facing&quot;,&#xA;    &quot;Flow rate&quot;: &quot;38.333333333333336 l/min&quot;,&#xA;    &quot;Filter face velocity&quot;: &quot;53.5 cm/s&quot;,&#xA;    &quot;Exposed filter area&quot;: &quot;11.9 cm2&quot;,&#xA;    &quot;Filter description&quot;: &quot;MK 360&quot;,&#xA;    &quot;Medium&quot;: &quot;Quartz&quot;,&#xA;    &quot;Filter prefiring&quot;: &quot;1123.15 K, 3.0 h&quot;,&#xA;    &quot;Filter conditioning&quot;: &quot;None&quot;,&#xA;    &quot;Sample preparation&quot;: &quot;Water extraction after ultrasonic treatment&quot;,&#xA;    &quot;Blank correction&quot;: &quot;Blank corrected&quot;,&#xA;    &quot;Humidity/temperature control&quot;: &quot;None&quot;,&#xA;    &quot;Humidity/temperature control description&quot;: &quot;filter kept at ambient conditions&quot;,&#xA;    &quot;Volume std. temperature&quot;: &quot;293.15 K&quot;,&#xA;    &quot;Volume std. pressure&quot;: &quot;1013.25 hPa&quot;,&#xA;    &quot;Detection limit expl.&quot;: &quot;Determined by taking 3 times standard deviation of laboratory blanks&quot;,&#xA;    &quot;Zero/negative values code&quot;: &quot;Zero/negative impossible&quot;,&#xA;    &quot;Zero/negative values&quot;: &quot;Zero/negative values reported as half of detection limit, flagged with 780&quot;,&#xA;    &quot;Organization&quot;: &quot;DE03L, Umweltbundesamt, UBA-LA, Langen, Paul-Ehrlich-Str. 29, , 63225, Langen, Germany&quot;,&#xA;    &quot;Framework acronym&quot;: &quot;EMEP_preliminary, HELCOM&quot;,&#xA;    &quot;Framework name&quot;: &quot;Preliminary data submissions for European Monitoring and Evaluation Programme, Baltic Marine Environment Protection Commission - Helsinki Commission&quot;,&#xA;    &quot;Framework description&quot;: &quot;The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., Atmospheric monitoring data for the assessment of the atmospheric input of selected contaminants to the Baltic sea area.&quot;,&#xA;    &quot;Framework contact name&quot;: &quot;Kjetil Tørseth, Kjetil Tørseth&quot;,&#xA;    &quot;Framework contact email&quot;: &quot;kt@nilu.no, kt@nilu.no&quot;,&#xA;    &quot;Originator&quot;: &quot;Bieber, Elke, , , , , , , , , &quot;,&#xA;    &quot;Submitter&quot;: &quot;Feigenspan, Stefan, stefan.feigenspan@uba.de, Umweltbundesamt, UBA, Air Quality Assessment, Woerlitzer Platz 1, , 06844, Dessau-Rosslau, Germany&quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;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 frameworks: EMEP_preliminary, HELCOM. 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="61" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <dimension name="ammonium_ug_N_per_m3_qc_flags" length="1" />
  <dimension name="ammonium_ug_per_m3_qc_flags" length="1" />
  <dimension name="nitrate_ug_N_per_m3_qc_flags" length="1" />
  <dimension name="nitrate_ug_per_m3_qc_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2017-01-03T11:00:00Z" />
    <attribute name="time_coverage_end" value="2017-12-29T11:00:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="518400.0" />
    <attribute name="time_coverage_duration" value="P0Y0M360DT0H0M0.000S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-04-12" />
    <attribute name="nciso_version" value="2.4.7" />
  </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="ammonium_ug_N_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ammonium_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug N/m3" />
    <attribute name="ancillary_variables" value="ammonium_ug N_per_m3_qc ammonium_ug N_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="20190212100821" />
    <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="1d" />
    <attribute name="ebas_orig_time_res" value="6d" />
    <attribute name="ebas_station_code" value="DE0009R" />
    <attribute name="ebas_platform_code" value="DE0009S" />
    <attribute name="ebas_station_name" value="Zingst" />
    <attribute name="ebas_station_gaw_id" value="ZGT" />
    <attribute name="ebas_station_gaw_name" value="Zingst" />
    <attribute name="ebas_station_other_ids" value="DEUB028 (UBA)" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="C" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="54.4368" />
    <attribute name="ebas_station_longitude" value="12.7249" />
    <attribute name="ebas_station_altitude" value="1.0 m" />
    <attribute name="ebas_measurement_height" value="1.6 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ammonium" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="DE03L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="UBA_Zg_LVS_0301" />
    <attribute name="ebas_instrument_manufacturer" value="Leckel" />
    <attribute name="ebas_instrument_model" value="SEQ47/50" />
    <attribute name="ebas_analytical_laboratory_code" value="DE41L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="Ext_Sy_CIC_0001" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Metrohm" />
    <attribute name="ebas_analytical_instrument_model" value="881 Compact IC pro" />
    <attribute name="ebas_method_ref" value="DE41L_Ext_Sy_CIC_0001" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM 2.5, upward facing" />
    <attribute name="ebas_flow_rate" value="38.333333333333336 l/min" />
    <attribute name="ebas_filter_face_velocity" value="53.5 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="11.9 cm2" />
    <attribute name="ebas_filter_description" value="MK 360" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="1123.15 K, 3.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions" />
    <attribute name="ebas_volume_std_temperature" value="293.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.0174 ug N/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of laboratory blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as half of detection limit, flagged with 780" />
    <attribute name="ebas_organization" value="DE03L, Umweltbundesamt, UBA-LA, Langen, Paul-Ehrlich-Str. 29, , 63225, Langen, Germany" />
    <attribute name="ebas_framework_acronym" value="EMEP_preliminary, HELCOM" />
    <attribute name="ebas_framework_name" value="Preliminary data submissions for European Monitoring and Evaluation Programme, Baltic Marine Environment Protection Commission - Helsinki Commission" />
    <attribute name="ebas_framework_description" value="The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., Atmospheric monitoring data for the assessment of the atmospheric input of selected contaminants to the Baltic sea area." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="Bieber, Elke, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Feigenspan, Stefan, stefan.feigenspan@uba.de, Umweltbundesamt, UBA, Air Quality Assessment, Woerlitzer Platz 1, , 06844, Dessau-Rosslau, Germany" />
    <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 frameworks: EMEP_preliminary, HELCOM. Request acknowledgement details from data originator" />
  </variable>
  <variable name="ammonium_ug_N_per_m3_qc" shape="ammonium_ug_N_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="ammonium_ug_N_per_m3_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="ammonium_ug_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ammonium_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="ammonium_ug_per_m3_qc ammonium_ug_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="20190212100821" />
    <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="1d" />
    <attribute name="ebas_orig_time_res" value="6d" />
    <attribute name="ebas_station_code" value="DE0009R" />
    <attribute name="ebas_platform_code" value="DE0009S" />
    <attribute name="ebas_station_name" value="Zingst" />
    <attribute name="ebas_station_gaw_id" value="ZGT" />
    <attribute name="ebas_station_gaw_name" value="Zingst" />
    <attribute name="ebas_station_other_ids" value="DEUB028 (UBA)" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="C" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="54.4368" />
    <attribute name="ebas_station_longitude" value="12.7249" />
    <attribute name="ebas_station_altitude" value="1.0 m" />
    <attribute name="ebas_measurement_height" value="1.6 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ammonium" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="DE03L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="UBA_Zg_LVS_0301" />
    <attribute name="ebas_instrument_manufacturer" value="Leckel" />
    <attribute name="ebas_instrument_model" value="SEQ47/50" />
    <attribute name="ebas_analytical_laboratory_code" value="DE41L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="Ext_Sy_CIC_0001" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Metrohm" />
    <attribute name="ebas_analytical_instrument_model" value="881 Compact IC pro" />
    <attribute name="ebas_method_ref" value="DE41L_Ext_Sy_CIC_0001" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM 2.5, upward facing" />
    <attribute name="ebas_flow_rate" value="38.333333333333336 l/min" />
    <attribute name="ebas_filter_face_velocity" value="53.5 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="11.9 cm2" />
    <attribute name="ebas_filter_description" value="MK 360" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="1123.15 K, 3.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions" />
    <attribute name="ebas_volume_std_temperature" value="293.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.02241 ug/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of laboratory blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as half of detection limit, flagged with 780" />
    <attribute name="ebas_organization" value="DE03L, Umweltbundesamt, UBA-LA, Langen, Paul-Ehrlich-Str. 29, , 63225, Langen, Germany" />
    <attribute name="ebas_framework_acronym" value="EMEP_preliminary, HELCOM" />
    <attribute name="ebas_framework_name" value="Preliminary data submissions for European Monitoring and Evaluation Programme, Baltic Marine Environment Protection Commission - Helsinki Commission" />
    <attribute name="ebas_framework_description" value="The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., Atmospheric monitoring data for the assessment of the atmospheric input of selected contaminants to the Baltic sea area." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="Bieber, Elke, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Feigenspan, Stefan, stefan.feigenspan@uba.de, Umweltbundesamt, UBA, Air Quality Assessment, Woerlitzer Platz 1, , 06844, Dessau-Rosslau, Germany" />
    <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 frameworks: EMEP_preliminary, HELCOM. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data converted on export from EBAS from 'ug N/m3' to 'ug/m3', conversion factor 1.2878561. Detection limit converted from '0.0174 ug N/m3' to '0.02241 ug/m3', conversion factor 1.2878561." />
  </variable>
  <variable name="ammonium_ug_per_m3_qc" shape="ammonium_ug_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="ammonium_ug_per_m3_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrate_ug_N_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrate_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug N/m3" />
    <attribute name="ancillary_variables" value="nitrate_ug N_per_m3_qc nitrate_ug N_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="20190212100821" />
    <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="1d" />
    <attribute name="ebas_orig_time_res" value="6d" />
    <attribute name="ebas_station_code" value="DE0009R" />
    <attribute name="ebas_platform_code" value="DE0009S" />
    <attribute name="ebas_station_name" value="Zingst" />
    <attribute name="ebas_station_gaw_id" value="ZGT" />
    <attribute name="ebas_station_gaw_name" value="Zingst" />
    <attribute name="ebas_station_other_ids" value="DEUB028 (UBA)" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="C" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="54.4368" />
    <attribute name="ebas_station_longitude" value="12.7249" />
    <attribute name="ebas_station_altitude" value="1.0 m" />
    <attribute name="ebas_measurement_height" value="1.6 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrate" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="DE03L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="UBA_Zg_LVS_0301" />
    <attribute name="ebas_instrument_manufacturer" value="Leckel" />
    <attribute name="ebas_instrument_model" value="SEQ47/50" />
    <attribute name="ebas_analytical_laboratory_code" value="DE41L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="Ext_Sy_CIC_0001" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Metrohm" />
    <attribute name="ebas_analytical_instrument_model" value="881 Compact IC pro" />
    <attribute name="ebas_method_ref" value="DE41L_Ext_Sy_CIC_0001" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM 2.5, upward facing" />
    <attribute name="ebas_flow_rate" value="38.333333333333336 l/min" />
    <attribute name="ebas_filter_face_velocity" value="53.5 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="11.9 cm2" />
    <attribute name="ebas_filter_description" value="MK 360" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="1123.15 K, 3.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions" />
    <attribute name="ebas_volume_std_temperature" value="293.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.0023 ug N/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of laboratory blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as half of detection limit, flagged with 780" />
    <attribute name="ebas_organization" value="DE03L, Umweltbundesamt, UBA-LA, Langen, Paul-Ehrlich-Str. 29, , 63225, Langen, Germany" />
    <attribute name="ebas_framework_acronym" value="EMEP_preliminary, HELCOM" />
    <attribute name="ebas_framework_name" value="Preliminary data submissions for European Monitoring and Evaluation Programme, Baltic Marine Environment Protection Commission - Helsinki Commission" />
    <attribute name="ebas_framework_description" value="The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., Atmospheric monitoring data for the assessment of the atmospheric input of selected contaminants to the Baltic sea area." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="Bieber, Elke, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Feigenspan, Stefan, stefan.feigenspan@uba.de, Umweltbundesamt, UBA, Air Quality Assessment, Woerlitzer Platz 1, , 06844, Dessau-Rosslau, Germany" />
    <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 frameworks: EMEP_preliminary, HELCOM. Request acknowledgement details from data originator" />
  </variable>
  <variable name="nitrate_ug_N_per_m3_qc" shape="nitrate_ug_N_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="nitrate_ug_N_per_m3_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrate_ug_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrate_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="nitrate_ug_per_m3_qc nitrate_ug_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="20190212100821" />
    <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="1d" />
    <attribute name="ebas_orig_time_res" value="6d" />
    <attribute name="ebas_station_code" value="DE0009R" />
    <attribute name="ebas_platform_code" value="DE0009S" />
    <attribute name="ebas_station_name" value="Zingst" />
    <attribute name="ebas_station_gaw_id" value="ZGT" />
    <attribute name="ebas_station_gaw_name" value="Zingst" />
    <attribute name="ebas_station_other_ids" value="DEUB028 (UBA)" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="C" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="54.4368" />
    <attribute name="ebas_station_longitude" value="12.7249" />
    <attribute name="ebas_station_altitude" value="1.0 m" />
    <attribute name="ebas_measurement_height" value="1.6 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrate" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="DE03L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="UBA_Zg_LVS_0301" />
    <attribute name="ebas_instrument_manufacturer" value="Leckel" />
    <attribute name="ebas_instrument_model" value="SEQ47/50" />
    <attribute name="ebas_analytical_laboratory_code" value="DE41L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="Ext_Sy_CIC_0001" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Metrohm" />
    <attribute name="ebas_analytical_instrument_model" value="881 Compact IC pro" />
    <attribute name="ebas_method_ref" value="DE41L_Ext_Sy_CIC_0001" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM 2.5, upward facing" />
    <attribute name="ebas_flow_rate" value="38.333333333333336 l/min" />
    <attribute name="ebas_filter_face_velocity" value="53.5 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="11.9 cm2" />
    <attribute name="ebas_filter_description" value="MK 360" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="1123.15 K, 3.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions" />
    <attribute name="ebas_volume_std_temperature" value="293.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.01018 ug/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of laboratory blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as half of detection limit, flagged with 780" />
    <attribute name="ebas_organization" value="DE03L, Umweltbundesamt, UBA-LA, Langen, Paul-Ehrlich-Str. 29, , 63225, Langen, Germany" />
    <attribute name="ebas_framework_acronym" value="EMEP_preliminary, HELCOM" />
    <attribute name="ebas_framework_name" value="Preliminary data submissions for European Monitoring and Evaluation Programme, Baltic Marine Environment Protection Commission - Helsinki Commission" />
    <attribute name="ebas_framework_description" value="The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., Atmospheric monitoring data for the assessment of the atmospheric input of selected contaminants to the Baltic sea area." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="Bieber, Elke, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Feigenspan, Stefan, stefan.feigenspan@uba.de, Umweltbundesamt, UBA, Air Quality Assessment, Woerlitzer Platz 1, , 06844, Dessau-Rosslau, Germany" />
    <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 frameworks: EMEP_preliminary, HELCOM. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data converted on export from EBAS from 'ug N/m3' to 'ug/m3', conversion factor 4.4267295. Detection limit converted from '0.0023 ug N/m3' to '0.01018 ug/m3', conversion factor 4.4267295." />
  </variable>
  <variable name="nitrate_ug_per_m3_qc" shape="nitrate_ug_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="nitrate_ug_per_m3_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>
