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  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Pm25_mass at Farkasfa" />
  <attribute name="summary" value="Pm25_mass at Farkasfa. These measurements are gathered as a part of the following projects EMEP, GAW-WDCRG and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ['pm25_mass in pm25 (mass_concentration_of_pm2p5_ambient_aerosol_particles_in_air)']" />
  <attribute name="keywords" value="Farkasfa HU0003R pm25_mass pm25 EMEP GAW-WDCRG mass_concentration_of_pm2p5_ambient_aerosol_particles_in_air" />
  <attribute name="id" value="R7K7-XX83.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="EMEP, GAW-WDCRG" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/R7K7-XX83" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Ferenczi, Z., Labancz, K., EMEP, GAW-WDCRG, 2019, Pm25_mass at Farkasfa, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/R7K7-XX83" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="HU01L &quot;Hungarian Meteorological Service&quot; OMSZ &quot;Unit of Analysis on Ambient Air&quot; &quot;P.O.Box 39&quot; 1675 Budapest Hungary" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2019-10-28T12:10:22.757000Z" />
  <attribute name="date_metadata_modified" value="2019-10-28T12:10:22Z" />
  <attribute name="creator_name" value="Zita Ferenczi, Krisztina Labancz" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="ferenczi.z@met.hu, labancz.k@met.hu" />
  <attribute name="creator_institution" value="&quot;Hungarian Meteorological Service, Unit of Analysis on Ambient Air, OMSZ&quot;, &quot;Hungarian Meteorological Service, Unit of Analysis on Ambient Air, OMSZ&quot;" />
  <attribute name="contributor_name" value="Krisztina Labancz" />
  <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 (16.32 46.91 315)" />
  <attribute name="geospatial_lat_min" type="double" value="46.91" />
  <attribute name="geospatial_lat_max" type="double" value="46.91" />
  <attribute name="geospatial_lon_min" type="double" value="16.32" />
  <attribute name="geospatial_lon_max" type="double" value="16.32" />
  <attribute name="geospatial_vertical_min" type="double" value="315.0" />
  <attribute name="geospatial_vertical_max" type="double" value="315.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2016-06-01T00:00:00Z" />
  <attribute name="time_coverage_end" value="2019-01-01T00:00:00Z" />
  <attribute name="time_coverage_duration" value="P0002-07-00T00:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-00T01:00:00" />
  <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="Ferenczi, Z., Labancz, K., EMEP, GAW-WDCRG, 2019, Pm25_mass at Farkasfa, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/R7K7-XX83" />
  <attribute name="ebas_set_type_code" value="TU" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="R7K7-XX83.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/R7K7-XX83" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/R7K7-XX83" />
  <attribute name="ebas_file_creation" value="2026-05-08T17:53:21.089797Z" />
  <attribute name="ebas_export_state" value="2019-10-28T12:10:22.757000Z" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="2016-06-01T00:00:00.000000Z" />
  <attribute name="ebas_revision_date" value="2019-10-28T12:10:22.757000Z" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="initial revision, manually inspected" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="3y" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_sample_duration" value="1h" />
  <attribute name="ebas_orig_time_res" value="10mn" />
  <attribute name="ebas_station_code" value="HU0003R" />
  <attribute name="ebas_platform_code" value="HU0003S" />
  <attribute name="ebas_station_name" value="Farkasfa" />
  <attribute name="ebas_station_land_use" value="Forest" />
  <attribute name="ebas_station_setting" value="Rural" />
  <attribute name="ebas_station_latitude" type="double" value="46.91" />
  <attribute name="ebas_station_longitude" type="double" value="16.32" />
  <attribute name="ebas_station_altitude" value="312.0 m" />
  <attribute name="ebas_measurement_altitude" value="315.0 m" />
  <attribute name="ebas_measurement_height" value="3.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_component" value="pm25_mass" />
  <attribute name="ebas_unit" value="ug/m3" />
  <attribute name="ebas_matrix" value="pm25" />
  <attribute name="ebas_laboratory_code" value="HU01L" />
  <attribute name="ebas_instrument_type" value="optical_particle_size_spectrometer" />
  <attribute name="ebas_instrument_name" value="PM2" />
  <attribute name="ebas_instrument_manufacturer" value="GRIMM" />
  <attribute name="ebas_instrument_model" value="180" />
  <attribute name="ebas_instrument_serial_number" value="18A16001" />
  <attribute name="ebas_method_ref" value="HU01L_pm25_Grimm180" />
  <attribute name="ebas_inlet_type" value="Hat or hood" />
  <attribute name="ebas_inlet_description" value="inlet as delivered with instrument, including dryer and hat" />
  <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
  <attribute name="ebas_humidity_temperaure_control_description" value="Sample heated to lab temperature and dried to RH &lt; 40%" />
  <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="0.0 ug/m3" />
  <attribute name="ebas_organization" value="HU01L, Hungarian Meteorological Service, OMSZ, Unit of Analysis on Ambient Air, P.O.Box 39, , 1675, Budapest, Hungary" />
  <attribute name="ebas_framework_acronym" value="" />
  <attribute name="ebas_framework_name" value="" />
  <attribute name="ebas_framework_description" value="" />
  <attribute name="ebas_framework_contact_name" value="" />
  <attribute name="ebas_framework_contact_email" value="" />
  <attribute name="ebas_originator" value="&quot;Ferenczi, Zita, ferenczi.z@met.hu, Hungarian Meteorological Service, OMSZ, Unit of Analysis on Ambient Air, P.O.Box 39, , 1675, Budapest, Hungary&quot;, &quot;Labancz, Krisztina, labancz.k@met.hu, Hungarian Meteorological Service, OMSZ, Unit of Analysis on Ambient Air, P.O.Box 39, , 1675, Budapest, Hungary&quot;" />
  <attribute name="ebas_submitter" value="&quot;Labancz, Krisztina, labancz.k@met.hu, Hungarian Meteorological Service, OMSZ, Unit of Analysis on Ambient Air, P.O.Box 39, , 1675, Budapest, Hungary&quot;" />
  <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" />
  <attribute name="_CoordSysBuilder" value="ucar.nc2.internal.dataset.conv.CF1Convention" />
  <dimension name="time" length="22656" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="3" />
  <dimension name="qc_pm25_mass_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2016-06-01T00:30:00Z" />
    <attribute name="time_coverage_end" value="2018-12-31T23:30:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="3600.0" />
    <attribute name="time_coverage_duration" value="P0Y0M943DT23H0M0.000S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-18" />
    <attribute name="nciso_version" value="2.4.8" />
  </group>
  <variable name="time_bnds" shape="time tbnds" type="double">
    <attribute name="long_name" value="time bounds for measurement" />
  </variable>
  <variable name="metadata_time_bnds" shape="metadata_time tbnds" type="double">
    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
  </variable>
  <variable name="v_pm25_mass" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_pm2p5_ambient_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_pm25_mass meta_pm25_mass" />
    <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="2019-10-28T12:10:22.757000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="HU0003R" />
    <attribute name="ebas_platform_code" value="HU0003S" />
    <attribute name="ebas_station_name" value="Farkasfa" />
    <attribute name="ebas_station_land_use" value="Forest" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_latitude" type="double" value="46.91" />
    <attribute name="ebas_station_longitude" type="double" value="16.32" />
    <attribute name="ebas_station_altitude" value="312.0 m" />
    <attribute name="ebas_measurement_altitude" value="315.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="pm25_mass" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="HU01L" />
    <attribute name="ebas_instrument_type" value="optical_particle_size_spectrometer" />
    <attribute name="ebas_instrument_name" value="PM2" />
    <attribute name="ebas_instrument_manufacturer" value="GRIMM" />
    <attribute name="ebas_instrument_model" value="180" />
    <attribute name="ebas_instrument_serial_number" value="18A16001" />
    <attribute name="ebas_method_ref" value="HU01L_pm25_Grimm180" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="inlet as delivered with instrument, including dryer and hat" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Sample heated to lab temperature and dried to RH &lt; 40%" />
    <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="0.0 ug/m3" />
    <attribute name="ebas_organization" value="HU01L, Hungarian Meteorological Service, OMSZ, Unit of Analysis on Ambient Air, P.O.Box 39, , 1675, Budapest, Hungary" />
    <attribute name="ebas_framework_acronym" value="" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="" />
    <attribute name="ebas_framework_contact_email" value="" />
    <attribute name="ebas_originator" value="&quot;Ferenczi, Zita, ferenczi.z@met.hu, Hungarian Meteorological Service, OMSZ, Unit of Analysis on Ambient Air, P.O.Box 39, , 1675, Budapest, Hungary&quot;, &quot;Labancz, Krisztina, labancz.k@met.hu, Hungarian Meteorological Service, OMSZ, Unit of Analysis on Ambient Air, P.O.Box 39, , 1675, Budapest, Hungary&quot;" />
    <attribute name="ebas_submitter" value="&quot;Labancz, Krisztina, labancz.k@met.hu, Hungarian Meteorological Service, OMSZ, Unit of Analysis on Ambient Air, P.O.Box 39, , 1675, Budapest, Hungary&quot;" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM2.5" />
    <attribute name="actris_matrix_preferred_term" value="PM2.5" />
    <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/opticalparticlesizespectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="optical particle size spectrometer" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_pm25_mass" shape="qc_pm25_mass_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_pm25_mass" 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>
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