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  <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 Rucava" />
  <attribute name="keywords" value="mass_concentration_of_nitrate_expressed_as_nitrogen_in_dry_aerosol_particles_in_air, mass_concentration_of_ammonia_expressed_as_nitrogen_in_air, sum_ammonia_and_ammonium, LV0010R, mass_concentration_of_sum_ammonia_and_ammonium_in_aerosol, sulphate_total, mass_concentration_of_nitric_acid_expressed_as_nitrogen_in_air, nitrate, mass_concentration_of_nitrate_in_dry_aerosol_particles_in_air, GAW-WDCA, Rucava, air+aerosol, ammonium, mass_concentration_of_ammonium_expressed_as_nitrogen_in_dry_aerosol_particles_in_air, nitrogen_dioxide, mass_concentration_of_sum_nitric_acid_and_nitrate_expressed_as_nitrogen_in_aerosol, mass_concentration_of_ammonium_in_dry_aerosol_particles_in_air, mass_concentration_of_total_sulphateexpressed_as_sulphur_in_dry_aerosol_particles_in_air, EMEP, ammonia, GAW-WDCRG, sulphur_dioxide, air, mass_concentration_of_nitrogen_dioxide_expressed_as_nitrogen_in_air, aerosol, nitric_acid, sum_nitric_acid_and_nitrate, mass_concentration_of_sulphur_dioxide_expressed_as_sulphur_in_air" />
  <attribute name="id" value="7ZPF-UTFJ.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="EMEP, GAW-WDCA, GAW-WDCRG" />
  <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, GAW-WDCA, GAW-WDCRG." />
  <attribute name="doi" value="https://doi.org/10.48597/7ZPF-UTFJ" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Indriksone, I., EMEP, GAW-WDCA, GAW-WDCRG, 2024, Inorganics in air and particle phase at Rucava, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/7ZPF-UTFJ" />
  <attribute name="summary" value="Inorganics in air and particle phase at Rucava. These measurements are gathered as a part of the following projects EMEP, GAW-WDCA, GAW-WDCRG and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ammonia in air (mass_concentration_of_ammonia_expressed_as_nitrogen_in_air), ammonium in aerosol (mass_concentration_of_ammonium_expressed_as_nitrogen_in_dry_aerosol_particles_in_air), ammonium in aerosol (mass_concentration_of_ammonium_in_dry_aerosol_particles_in_air), nitrate in aerosol (mass_concentration_of_nitrate_expressed_as_nitrogen_in_dry_aerosol_particles_in_air), nitrate in aerosol (mass_concentration_of_nitrate_in_dry_aerosol_particles_in_air), nitric_acid in air (mass_concentration_of_nitric_acid_expressed_as_nitrogen_in_air), sulphate_total in aerosol (mass_concentration_of_total_sulphateexpressed_as_sulphur_in_dry_aerosol_particles_in_air), sulphate_total in aerosol (mass_concentration_of_total_sulphateexpressed_as_sulphur_in_dry_aerosol_particles_in_air), sulphur_dioxide in air (mass_concentration_of_sulphur_dioxide_expressed_as_sulphur_in_air), sum_ammonia_and_ammonium in air+aerosol (mass_concentration_of_sum_ammonia_and_ammonium_in_aerosol), sum_nitric_acid_and_nitrate in air+aerosol (mass_concentration_of_sum_nitric_acid_and_nitrate_expressed_as_nitrogen_in_aerosol), nitrogen_dioxide in air (mass_concentration_of_nitrogen_dioxide_expressed_as_nitrogen_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="LV33L, Latvian Environment, Geology and Meteorology Centre, Monitoring  Department, Maskavas Str. 165, LV-1019, Riga, Latvia" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2024-06-18T14:44:37 UTC" />
  <attribute name="date_metadata_modified" value="2024-06-18T14:44:37 UTC" />
  <attribute name="creator_name" value="Iveta Indriksone" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="" />
  <attribute name="creator_institution" value="" />
  <attribute name="contributor_name" value="Marina Frolova, Aleksandra Kanisceva" />
  <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 (56.161944 21.173056 18.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="56.161944" />
  <attribute name="geospatial_lat_max" type="double" value="56.161944" />
  <attribute name="geospatial_lon_min" type="double" value="21.173056" />
  <attribute name="geospatial_lon_max" type="double" value="21.173056" />
  <attribute name="geospatial_vertical_min" type="double" value="18.0" />
  <attribute name="geospatial_vertical_max" type="double" value="18.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2020-01-01T08:00:00 UTC" />
  <attribute name="time_coverage_end" value="2023-01-01T08:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0003-00-00T00:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-01T00:00:00" />
  <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="Indriksone, I., EMEP, GAW-WDCA, GAW-WDCRG, 2024, Inorganics in air and particle phase at Rucava, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/7ZPF-UTFJ" />
  <attribute name="ebas_set_type_code" value="TU" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="7ZPF-UTFJ.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/7ZPF-UTFJ" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/7ZPF-UTFJ" />
  <attribute name="ebas_file_creation" value="2024-09-27T17:09:40.655415 UTC" />
  <attribute name="ebas_export_state" value="2024-01-10T10:25:11.920628 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="20200101080000" />
  <attribute name="ebas_revision_date" value="20240618144437" />
  <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="1d" />
  <attribute name="ebas_sample_duration" value="1d" />
  <attribute name="ebas_orig_time_res" value="1d" />
  <attribute name="ebas_station_code" value="LV0010R" />
  <attribute name="ebas_platform_code" value="LV0010S" />
  <attribute name="ebas_station_name" value="Rucava" />
  <attribute name="ebas_station_latitude" value="56.161944" />
  <attribute name="ebas_station_longitude" value="21.173056" />
  <attribute name="ebas_station_altitude" value="18.0 m" />
  <attribute name="ebas_measurement_altitude" value="18.0 m" />
  <attribute name="ebas_measurement_height" value="1.8 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_laboratory_code" value="LV33L" />
  <attribute name="ebas_analytical_laboratory_code" value="LV33L" />
  <attribute name="ebas_inlet_type" value="Hat or hood" />
  <attribute name="ebas_inlet_description" value="Downward facing" />
  <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 together with sampling head" />
  <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
  <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
  <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as detection limit of laboratory blanks, flagged with 781" />
  <attribute name="ebas_organization" value="LV33L, &quot;Latvian Environment, Geology and Meteorology Centre&quot;, , Monitoring  Department, Maskavas Str. 165, , LV-1019, Riga, Latvia" />
  <attribute name="ebas_framework_acronym" value="EMEP, GAW-WDCA, GAW-WDCRG" />
  <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme, World Data Centre for Aerosols, World Data Centre for Reactive Gases" />
  <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., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
  <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig, Kjetil Tørseth" />
  <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no, kt@nilu.no" />
  <attribute name="ebas_originator" value="Indriksone, Iveta, , , , , , , , , " />
  <attribute name="ebas_submitter" value="Kanisceva, Aleksandra, aleksandra.kanisceva@lvgmc.lv, Latvian Environment Geology and Meteorology Centre, LEGMC, Monitoring Department, Maskavas 165, , 1019, Riga, Latvia" />
  <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, GAW-WDCA, GAW-WDCRG." />
  <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;Indriksone, I., EMEP, GAW-WDCA, GAW-WDCRG, 2024, Inorganics in air and particle phase at Rucava, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/7ZPF-UTFJ&quot;,&#xA;    &quot;Set type code&quot;: &quot;TU&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;7ZPF-UTFJ.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/7ZPF-UTFJ&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/7ZPF-UTFJ&quot;,&#xA;    &quot;File creation&quot;: &quot;2024-09-27T17:09:40.655415 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2024-01-10T10:25:11.920628 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20200101080000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20240618144437&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Version description&quot;: &quot;initial revision, 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;3y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1d&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1d&quot;,&#xA;    &quot;Orig. time res.&quot;: &quot;1d&quot;,&#xA;    &quot;Station code&quot;: &quot;LV0010R&quot;,&#xA;    &quot;Platform code&quot;: &quot;LV0010S&quot;,&#xA;    &quot;Station name&quot;: &quot;Rucava&quot;,&#xA;    &quot;Station latitude&quot;: &quot;56.161944&quot;,&#xA;    &quot;Station longitude&quot;: &quot;21.173056&quot;,&#xA;    &quot;Station altitude&quot;: &quot;18.0 m&quot;,&#xA;    &quot;Measurement altitude&quot;: &quot;18.0 m&quot;,&#xA;    &quot;Measurement height&quot;: &quot;1.8 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;LV33L&quot;,&#xA;    &quot;Analytical laboratory code&quot;: &quot;LV33L&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Hat or hood&quot;,&#xA;    &quot;Inlet description&quot;: &quot;Downward facing&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 together with sampling head&quot;,&#xA;    &quot;Detection limit expl.&quot;: &quot;Determined by taking 3 times standard deviation of ensemble of laboratory blanks&quot;,&#xA;    &quot;Zero/negative values code&quot;: &quot;Zero/negative possible&quot;,&#xA;    &quot;Zero/negative values&quot;: &quot;Zero/negative values reported as detection limit of laboratory blanks, flagged with 781&quot;,&#xA;    &quot;Organization&quot;: &quot;LV33L, \&quot;Latvian Environment, Geology and Meteorology Centre\&quot;, , Monitoring  Department, Maskavas Str. 165, , LV-1019, Riga, Latvia&quot;,&#xA;    &quot;Framework acronym&quot;: &quot;EMEP, GAW-WDCA, GAW-WDCRG&quot;,&#xA;    &quot;Framework name&quot;: &quot;European Monitoring and Evaluation Programme, World Data Centre for Aerosols, World Data Centre for Reactive Gases&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., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;,&#xA;    &quot;Framework contact name&quot;: &quot;Kjetil Tørseth, Markus Fiebig, Kjetil Tørseth&quot;,&#xA;    &quot;Framework contact email&quot;: &quot;kt@nilu.no, Markus.Fiebig@nilu.no, kt@nilu.no&quot;,&#xA;    &quot;Originator&quot;: &quot;Indriksone, Iveta, , , , , , , , , &quot;,&#xA;    &quot;Submitter&quot;: &quot;Kanisceva, Aleksandra, aleksandra.kanisceva@lvgmc.lv, Latvian Environment Geology and Meteorology Centre, LEGMC, Monitoring Department, Maskavas 165, , 1019, Riga, Latvia&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, GAW-WDCA, GAW-WDCRG.&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="1096" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="3" />
  <dimension name="ammonia_qc_flags" length="2" />
  <dimension name="ammonium_ug_N_per_m3_qc_flags" length="2" />
  <dimension name="ammonium_ug_per_m3_qc_flags" length="2" />
  <dimension name="nitrate_ug_N_per_m3_qc_flags" length="1" />
  <dimension name="nitrate_ug_per_m3_qc_flags" length="1" />
  <dimension name="nitric_acid_qc_flags" length="2" />
  <dimension name="sulphate_total_ug_S_per_m3_qc_flags" length="1" />
  <dimension name="sulphate_total_ug_per_m3_qc_flags" length="1" />
  <dimension name="sulphur_dioxide_qc_flags" length="2" />
  <dimension name="sum_ammonia_and_ammonium_qc_flags" length="1" />
  <dimension name="sum_nitric_acid_and_nitrate_qc_flags" length="1" />
  <dimension name="nitrogen_dioxide_qc_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2020-01-01T20:00:00Z" />
    <attribute name="time_coverage_end" value="2022-12-31T20:00:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="86400.0" />
    <attribute name="time_coverage_duration" value="P0Y0M1095DT0H0M0.000S" />
  </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="ammonia" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ammonia_expressed_as_nitrogen_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="ammonia_qc ammonia_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="20240618144343" />
    <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="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="LV0010R" />
    <attribute name="ebas_platform_code" value="LV0010S" />
    <attribute name="ebas_station_name" value="Rucava" />
    <attribute name="ebas_station_latitude" value="56.161944" />
    <attribute name="ebas_station_longitude" value="21.173056" />
    <attribute name="ebas_station_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_height" value="1.8 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ammonia" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="LV33L" />
    <attribute name="ebas_instrument_type" value="filter_2pack" />
    <attribute name="ebas_instrument_name" value="LEGMC_f2p_0010" />
    <attribute name="ebas_instrument_manufacturer" value="NILU" />
    <attribute name="ebas_instrument_model" value="Two stage open face" />
    <attribute name="ebas_instrument_serial_number" value="9634" />
    <attribute name="ebas_analytical_laboratory_code" value="LV33L" />
    <attribute name="ebas_analytical_measurement_technique" value="spectrophotometric" />
    <attribute name="ebas_analytical_instrument_name" value="autoanalyzer_3" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="BRAN+LUEBBE" />
    <attribute name="ebas_analytical_instrument_model" value="Autoanalyzer 3" />
    <attribute name="ebas_analytical_instrument_serial_number" value="9524482" />
    <attribute name="ebas_method_ref" value="LV33L_autoanalyzer_3" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_flow_rate" value="16.0 l/min" />
    <attribute name="ebas_medium" value="Cellulose" />
    <attribute name="ebas_coating_solution" value="Oxalic acid" />
    <attribute name="ebas_sample_preparation" value="Acid extraction" />
    <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 together with sampling head" />
    <attribute name="ebas_detection_limit" value="0.034 ug N/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as detection limit of laboratory blanks, flagged with 781" />
    <attribute name="ebas_organization" value="LV33L, &quot;Latvian Environment, Geology and Meteorology Centre&quot;, , Monitoring  Department, Maskavas Str. 165, , LV-1019, Riga, Latvia" />
    <attribute name="ebas_framework_acronym" value="EMEP, GAW-WDCA, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme, World Data Centre for Aerosols, World Data Centre for Reactive Gases" />
    <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., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="Indriksone, Iveta, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Kanisceva, Aleksandra, aleksandra.kanisceva@lvgmc.lv, Latvian Environment Geology and Meteorology Centre, LEGMC, Monitoring Department, Maskavas 165, , 1019, Riga, Latvia" />
    <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, GAW-WDCA, GAW-WDCRG." />
  </variable>
  <variable name="ammonia_qc" shape="ammonia_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="ammonia_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </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_expressed_as_nitrogen_in_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/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="20240618144343" />
    <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="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="LV0010R" />
    <attribute name="ebas_platform_code" value="LV0010S" />
    <attribute name="ebas_station_name" value="Rucava" />
    <attribute name="ebas_station_latitude" value="56.161944" />
    <attribute name="ebas_station_longitude" value="21.173056" />
    <attribute name="ebas_station_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_height" value="1.8 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="aerosol" />
    <attribute name="ebas_laboratory_code" value="LV33L" />
    <attribute name="ebas_instrument_type" value="filter_2pack" />
    <attribute name="ebas_instrument_name" value="LEGMC_f2p_0010" />
    <attribute name="ebas_instrument_manufacturer" value="NILU" />
    <attribute name="ebas_instrument_model" value="Two stage open face" />
    <attribute name="ebas_instrument_serial_number" value="9634" />
    <attribute name="ebas_analytical_laboratory_code" value="LV33L" />
    <attribute name="ebas_analytical_measurement_technique" value="spectrophotometric" />
    <attribute name="ebas_analytical_instrument_name" value="autoanalyzer_3" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="BRAN+LUEBBE" />
    <attribute name="ebas_analytical_instrument_model" value="Autoanalyzer 3" />
    <attribute name="ebas_analytical_instrument_serial_number" value="9524482" />
    <attribute name="ebas_method_ref" value="LV33L_autoanalyzer_3" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_flow_rate" value="16.0 l/min" />
    <attribute name="ebas_medium" value="Cellulose" />
    <attribute name="ebas_sample_preparation" value="Water extraction" />
    <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 together with sampling head" />
    <attribute name="ebas_detection_limit" value="0.039 ug N/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as detection limit of laboratory blanks, flagged with 781" />
    <attribute name="ebas_organization" value="LV33L, &quot;Latvian Environment, Geology and Meteorology Centre&quot;, , Monitoring  Department, Maskavas Str. 165, , LV-1019, Riga, Latvia" />
    <attribute name="ebas_framework_acronym" value="EMEP, GAW-WDCA, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme, World Data Centre for Aerosols, World Data Centre for Reactive Gases" />
    <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., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="Indriksone, Iveta, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Kanisceva, Aleksandra, aleksandra.kanisceva@lvgmc.lv, Latvian Environment Geology and Meteorology Centre, LEGMC, Monitoring Department, Maskavas 165, , 1019, Riga, Latvia" />
    <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, GAW-WDCA, GAW-WDCRG." />
  </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" />
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    <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_dry_aerosol_particles_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="20240618144343" />
    <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="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="LV0010R" />
    <attribute name="ebas_platform_code" value="LV0010S" />
    <attribute name="ebas_station_name" value="Rucava" />
    <attribute name="ebas_station_latitude" value="56.161944" />
    <attribute name="ebas_station_longitude" value="21.173056" />
    <attribute name="ebas_station_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_height" value="1.8 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="aerosol" />
    <attribute name="ebas_laboratory_code" value="LV33L" />
    <attribute name="ebas_instrument_type" value="filter_2pack" />
    <attribute name="ebas_instrument_name" value="LEGMC_f2p_0010" />
    <attribute name="ebas_instrument_manufacturer" value="NILU" />
    <attribute name="ebas_instrument_model" value="Two stage open face" />
    <attribute name="ebas_instrument_serial_number" value="9634" />
    <attribute name="ebas_analytical_laboratory_code" value="LV33L" />
    <attribute name="ebas_analytical_measurement_technique" value="spectrophotometric" />
    <attribute name="ebas_analytical_instrument_name" value="autoanalyzer_3" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="BRAN+LUEBBE" />
    <attribute name="ebas_analytical_instrument_model" value="Autoanalyzer 3" />
    <attribute name="ebas_analytical_instrument_serial_number" value="9524482" />
    <attribute name="ebas_method_ref" value="LV33L_autoanalyzer_3" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_flow_rate" value="16.0 l/min" />
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    <attribute name="ebas_sample_preparation" value="Water extraction" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
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    <attribute name="ebas_detection_limit" value="0.05 ug/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
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    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme, World Data Centre for Aerosols, World Data Centre for Reactive Gases" />
    <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., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="Indriksone, Iveta, , , , , , , , , " />
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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 frameworks: EMEP, GAW-WDCA, GAW-WDCRG." />
    <attribute name="ebas_comment" value="Data converted on export from EBAS from 'ug N/m3' to 'ug/m3', conversion factor 1.28786. Detection limit converted from '0.039 ug N/m3' to '0.05 ug/m3', conversion factor 1.28786." />
  </variable>
  <variable name="ammonium_ug_per_m3_qc" shape="ammonium_ug_per_m3_qc_flags time" type="int">
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <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_expressed_as_nitrogen_in_dry_aerosol_particles_in_air" />
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    <attribute name="ancillary_variables" value="nitrate_ug N_per_m3_qc nitrate_ug N_per_m3_ebasmetadata" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="LV0010R" />
    <attribute name="ebas_platform_code" value="LV0010S" />
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    <attribute name="ebas_station_altitude" value="18.0 m" />
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    <attribute name="ebas_measurement_height" value="1.8 m" />
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    <attribute name="ebas_component" value="nitrate" />
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    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="IC_Dionex_ICS-3000" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Dionex" />
    <attribute name="ebas_analytical_instrument_model" value="ICS-3000" />
    <attribute name="ebas_analytical_instrument_serial_number" value="9100863" />
    <attribute name="ebas_method_ref" value="LV33L_IC_Dionex_ICS-3000" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
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    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="Indriksone, Iveta, , , , , , , , , " />
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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 frameworks: EMEP, GAW-WDCA, GAW-WDCRG." />
  </variable>
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <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_dry_aerosol_particles_in_air" />
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    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="LV0010R" />
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    <attribute name="ebas_component" value="nitrate" />
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    <attribute name="ebas_laboratory_code" value="LV33L" />
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    <attribute name="ebas_instrument_model" value="Two stage open face" />
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    <attribute name="ebas_analytical_laboratory_code" value="LV33L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="IC_Dionex_ICS-3000" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Dionex" />
    <attribute name="ebas_analytical_instrument_model" value="ICS-3000" />
    <attribute name="ebas_analytical_instrument_serial_number" value="9100863" />
    <attribute name="ebas_method_ref" value="LV33L_IC_Dionex_ICS-3000" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
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    <attribute name="ebas_blank_correction" value="Blank corrected" />
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    <attribute name="ebas_detection_limit" value="0.035 ug/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
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    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme, World Data Centre for Aerosols, World Data Centre for Reactive Gases" />
    <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., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="Indriksone, Iveta, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Kanisceva, Aleksandra, aleksandra.kanisceva@lvgmc.lv, Latvian Environment Geology and Meteorology Centre, LEGMC, Monitoring Department, Maskavas 165, , 1019, Riga, Latvia" />
    <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, GAW-WDCA, GAW-WDCRG." />
    <attribute name="ebas_comment" value="Data converted on export from EBAS from 'ug N/m3' to 'ug/m3', conversion factor 4.42673. Detection limit converted from '0.008 ug N/m3' to '0.035 ug/m3', conversion factor 4.42673." />
  </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="nitric_acid" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitric_acid_expressed_as_nitrogen_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="nitric_acid_qc nitric_acid_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="20240618144343" />
    <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="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="LV0010R" />
    <attribute name="ebas_platform_code" value="LV0010S" />
    <attribute name="ebas_station_name" value="Rucava" />
    <attribute name="ebas_station_latitude" value="56.161944" />
    <attribute name="ebas_station_longitude" value="21.173056" />
    <attribute name="ebas_station_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_height" value="1.8 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitric_acid" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="LV33L" />
    <attribute name="ebas_instrument_type" value="filter_2pack" />
    <attribute name="ebas_instrument_name" value="LEGMC_f2p_0010" />
    <attribute name="ebas_instrument_manufacturer" value="NILU" />
    <attribute name="ebas_instrument_model" value="Two stage open face" />
    <attribute name="ebas_instrument_serial_number" value="9634" />
    <attribute name="ebas_analytical_laboratory_code" value="LV33L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="IC_Dionex_ICS-3000" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Dionex" />
    <attribute name="ebas_analytical_instrument_model" value="ICS-3000" />
    <attribute name="ebas_analytical_instrument_serial_number" value="07010332" />
    <attribute name="ebas_method_ref" value="LV33L_IC_Dionex_ICS-3000" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_flow_rate" value="16.0 l/min" />
    <attribute name="ebas_medium" value="Cellulose" />
    <attribute name="ebas_coating_solution" value="KOH" />
    <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 together with sampling head" />
    <attribute name="ebas_detection_limit" value="0.013 ug N/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as detection limit of laboratory blanks, flagged with 781" />
    <attribute name="ebas_organization" value="LV33L, &quot;Latvian Environment, Geology and Meteorology Centre&quot;, , Monitoring  Department, Maskavas Str. 165, , LV-1019, Riga, Latvia" />
    <attribute name="ebas_framework_acronym" value="EMEP, GAW-WDCA, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme, World Data Centre for Aerosols, World Data Centre for Reactive Gases" />
    <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., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="Indriksone, Iveta, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Kanisceva, Aleksandra, aleksandra.kanisceva@lvgmc.lv, Latvian Environment Geology and Meteorology Centre, LEGMC, Monitoring Department, Maskavas 165, , 1019, Riga, Latvia" />
    <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, GAW-WDCA, GAW-WDCRG." />
  </variable>
  <variable name="nitric_acid_qc" shape="nitric_acid_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="nitric_acid_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sulphate_total_ug_S_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_total_sulphateexpressed_as_sulphur_in_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="sulphate_total_ug S_per_m3_qc sulphate_total_ug S_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="20240618144343" />
    <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="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="LV0010R" />
    <attribute name="ebas_platform_code" value="LV0010S" />
    <attribute name="ebas_station_name" value="Rucava" />
    <attribute name="ebas_station_latitude" value="56.161944" />
    <attribute name="ebas_station_longitude" value="21.173056" />
    <attribute name="ebas_station_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_height" value="1.8 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sulphate_total" />
    <attribute name="ebas_unit" value="ug S/m3" />
    <attribute name="ebas_matrix" value="aerosol" />
    <attribute name="ebas_laboratory_code" value="LV33L" />
    <attribute name="ebas_instrument_type" value="filter_2pack" />
    <attribute name="ebas_instrument_name" value="LEGMC_f2p_0010" />
    <attribute name="ebas_instrument_manufacturer" value="NILU" />
    <attribute name="ebas_instrument_model" value="Two stage open face" />
    <attribute name="ebas_instrument_serial_number" value="9634" />
    <attribute name="ebas_analytical_laboratory_code" value="LV33L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="IC_Dionex_ICS-3000" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Dionex" />
    <attribute name="ebas_analytical_instrument_model" value="ICS-3000" />
    <attribute name="ebas_analytical_instrument_serial_number" value="07010332" />
    <attribute name="ebas_method_ref" value="LV33L_IC_Dionex_ICS-3000" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_flow_rate" value="16.0 l/min" />
    <attribute name="ebas_medium" value="Cellulose" />
    <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 together with sampling head" />
    <attribute name="ebas_detection_limit" value="0.01 ug S/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as detection limit of laboratory blanks, flagged with 781" />
    <attribute name="ebas_organization" value="LV33L, &quot;Latvian Environment, Geology and Meteorology Centre&quot;, , Monitoring  Department, Maskavas Str. 165, , LV-1019, Riga, Latvia" />
    <attribute name="ebas_framework_acronym" value="EMEP, GAW-WDCA, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme, World Data Centre for Aerosols, World Data Centre for Reactive Gases" />
    <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., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="Indriksone, Iveta, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Kanisceva, Aleksandra, aleksandra.kanisceva@lvgmc.lv, Latvian Environment Geology and Meteorology Centre, LEGMC, Monitoring Department, Maskavas 165, , 1019, Riga, Latvia" />
    <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, GAW-WDCA, GAW-WDCRG." />
  </variable>
  <variable name="sulphate_total_ug_S_per_m3_qc" shape="sulphate_total_ug_S_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="sulphate_total_ug_S_per_m3_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sulphate_total_ug_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_total_sulphateexpressed_as_sulphur_in_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="sulphate_total_ug_per_m3_qc sulphate_total_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="20240618144343" />
    <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="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="LV0010R" />
    <attribute name="ebas_platform_code" value="LV0010S" />
    <attribute name="ebas_station_name" value="Rucava" />
    <attribute name="ebas_station_latitude" value="56.161944" />
    <attribute name="ebas_station_longitude" value="21.173056" />
    <attribute name="ebas_station_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_height" value="1.8 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sulphate_total" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="aerosol" />
    <attribute name="ebas_laboratory_code" value="LV33L" />
    <attribute name="ebas_instrument_type" value="filter_2pack" />
    <attribute name="ebas_instrument_name" value="LEGMC_f2p_0010" />
    <attribute name="ebas_instrument_manufacturer" value="NILU" />
    <attribute name="ebas_instrument_model" value="Two stage open face" />
    <attribute name="ebas_instrument_serial_number" value="9634" />
    <attribute name="ebas_analytical_laboratory_code" value="LV33L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="IC_Dionex_ICS-3000" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Dionex" />
    <attribute name="ebas_analytical_instrument_model" value="ICS-3000" />
    <attribute name="ebas_analytical_instrument_serial_number" value="07010332" />
    <attribute name="ebas_method_ref" value="LV33L_IC_Dionex_ICS-3000" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_flow_rate" value="16.0 l/min" />
    <attribute name="ebas_medium" value="Cellulose" />
    <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 together with sampling head" />
    <attribute name="ebas_detection_limit" value="0.03 ug/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as detection limit of laboratory blanks, flagged with 781" />
    <attribute name="ebas_organization" value="LV33L, &quot;Latvian Environment, Geology and Meteorology Centre&quot;, , Monitoring  Department, Maskavas Str. 165, , LV-1019, Riga, Latvia" />
    <attribute name="ebas_framework_acronym" value="EMEP, GAW-WDCA, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme, World Data Centre for Aerosols, World Data Centre for Reactive Gases" />
    <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., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="Indriksone, Iveta, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Kanisceva, Aleksandra, aleksandra.kanisceva@lvgmc.lv, Latvian Environment Geology and Meteorology Centre, LEGMC, Monitoring Department, Maskavas 165, , 1019, Riga, Latvia" />
    <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, GAW-WDCA, GAW-WDCRG." />
    <attribute name="ebas_comment" value="Data converted on export from EBAS from 'ug S/m3' to 'ug/m3', conversion factor 2.99618. Detection limit converted from '0.01 ug S/m3' to '0.03 ug/m3', conversion factor 2.99618." />
  </variable>
  <variable name="sulphate_total_ug_per_m3_qc" shape="sulphate_total_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="sulphate_total_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="sulphur_dioxide" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sulphur_dioxide_expressed_as_sulphur_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="sulphur_dioxide_qc sulphur_dioxide_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="20240618144343" />
    <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="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="LV0010R" />
    <attribute name="ebas_platform_code" value="LV0010S" />
    <attribute name="ebas_station_name" value="Rucava" />
    <attribute name="ebas_station_latitude" value="56.161944" />
    <attribute name="ebas_station_longitude" value="21.173056" />
    <attribute name="ebas_station_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_height" value="1.8 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sulphur_dioxide" />
    <attribute name="ebas_unit" value="ug S/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="LV33L" />
    <attribute name="ebas_instrument_type" value="filter_2pack" />
    <attribute name="ebas_instrument_name" value="LEGMC_f2p_0010" />
    <attribute name="ebas_instrument_manufacturer" value="NILU" />
    <attribute name="ebas_instrument_model" value="Two stage open face" />
    <attribute name="ebas_instrument_serial_number" value="9634" />
    <attribute name="ebas_analytical_laboratory_code" value="LV33L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="IC_Dionex_ICS-3000" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Dionex" />
    <attribute name="ebas_analytical_instrument_model" value="ICS-3000" />
    <attribute name="ebas_analytical_instrument_serial_number" value="9100863" />
    <attribute name="ebas_method_ref" value="LV33L_IC_Dionex_ICS-3000" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_flow_rate" value="16.0 l/min" />
    <attribute name="ebas_medium" value="Cellulose" />
    <attribute name="ebas_coating_solution" value="KOH" />
    <attribute name="ebas_sample_preparation" value="Water+H2O2 extraction" />
    <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 together with sampling head" />
    <attribute name="ebas_detection_limit" value="0.019 ug S/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as detection limit of laboratory blanks, flagged with 781" />
    <attribute name="ebas_organization" value="LV33L, &quot;Latvian Environment, Geology and Meteorology Centre&quot;, , Monitoring  Department, Maskavas Str. 165, , LV-1019, Riga, Latvia" />
    <attribute name="ebas_framework_acronym" value="EMEP, GAW-WDCA, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme, World Data Centre for Aerosols, World Data Centre for Reactive Gases" />
    <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., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="Indriksone, Iveta, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Kanisceva, Aleksandra, aleksandra.kanisceva@lvgmc.lv, Latvian Environment Geology and Meteorology Centre, LEGMC, Monitoring Department, Maskavas 165, , 1019, Riga, Latvia" />
    <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, GAW-WDCA, GAW-WDCRG." />
  </variable>
  <variable name="sulphur_dioxide_qc" shape="sulphur_dioxide_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="sulphur_dioxide_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sum_ammonia_and_ammonium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sum_ammonia_and_ammonium_in_aerosol" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug N/m3" />
    <attribute name="ancillary_variables" value="sum_ammonia_and_ammonium_qc sum_ammonia_and_ammonium_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="20240618144343" />
    <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="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="LV0010R" />
    <attribute name="ebas_platform_code" value="LV0010S" />
    <attribute name="ebas_station_name" value="Rucava" />
    <attribute name="ebas_station_latitude" value="56.161944" />
    <attribute name="ebas_station_longitude" value="21.173056" />
    <attribute name="ebas_station_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_height" value="1.8 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sum_ammonia_and_ammonium" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="air+aerosol" />
    <attribute name="ebas_laboratory_code" value="LV33L" />
    <attribute name="ebas_instrument_type" value="filter_2pack" />
    <attribute name="ebas_instrument_name" value="LEGMC_f2p_0010" />
    <attribute name="ebas_instrument_manufacturer" value="NILU" />
    <attribute name="ebas_instrument_model" value="Two stage open face" />
    <attribute name="ebas_instrument_serial_number" value="9634" />
    <attribute name="ebas_analytical_laboratory_code" value="LV33L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="IC_Dionex_ICS-3000" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Dionex" />
    <attribute name="ebas_analytical_instrument_model" value="ICS-3000" />
    <attribute name="ebas_method_ref" value="LV33L_IC_Dionex_ICS-3000" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_flow_rate" value="16.0 l/min" />
    <attribute name="ebas_medium" value="Cellulose" />
    <attribute name="ebas_coating_solution" value="NaI+NaOH" />
    <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 together with sampling head" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as detection limit of laboratory blanks, flagged with 781" />
    <attribute name="ebas_organization" value="LV33L, &quot;Latvian Environment, Geology and Meteorology Centre&quot;, , Monitoring  Department, Maskavas Str. 165, , LV-1019, Riga, Latvia" />
    <attribute name="ebas_framework_acronym" value="EMEP, GAW-WDCA, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme, World Data Centre for Aerosols, World Data Centre for Reactive Gases" />
    <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., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="Indriksone, Iveta, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Kanisceva, Aleksandra, aleksandra.kanisceva@lvgmc.lv, Latvian Environment Geology and Meteorology Centre, LEGMC, Monitoring Department, Maskavas 165, , 1019, Riga, Latvia" />
    <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, GAW-WDCA, GAW-WDCRG." />
  </variable>
  <variable name="sum_ammonia_and_ammonium_qc" shape="sum_ammonia_and_ammonium_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="sum_ammonia_and_ammonium_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sum_nitric_acid_and_nitrate" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sum_nitric_acid_and_nitrate_expressed_as_nitrogen_in_aerosol" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="sum_nitric_acid_and_nitrate_qc sum_nitric_acid_and_nitrate_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="20240618144343" />
    <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="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="LV0010R" />
    <attribute name="ebas_platform_code" value="LV0010S" />
    <attribute name="ebas_station_name" value="Rucava" />
    <attribute name="ebas_station_latitude" value="56.161944" />
    <attribute name="ebas_station_longitude" value="21.173056" />
    <attribute name="ebas_station_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_height" value="1.8 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sum_nitric_acid_and_nitrate" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="air+aerosol" />
    <attribute name="ebas_laboratory_code" value="LV33L" />
    <attribute name="ebas_instrument_type" value="filter_2pack" />
    <attribute name="ebas_instrument_name" value="LEGMC_f2p_0010" />
    <attribute name="ebas_instrument_manufacturer" value="NILU" />
    <attribute name="ebas_instrument_model" value="Two stage open face" />
    <attribute name="ebas_instrument_serial_number" value="9634" />
    <attribute name="ebas_analytical_laboratory_code" value="LV33L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="IC_Dionex_ICS-3000" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Dionex" />
    <attribute name="ebas_analytical_instrument_model" value="ICS-3000" />
    <attribute name="ebas_method_ref" value="LV33L_IC_Dionex_ICS-3000" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_flow_rate" value="16.0 l/min" />
    <attribute name="ebas_medium" value="Cellulose" />
    <attribute name="ebas_coating_solution" value="KOH" />
    <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 together with sampling head" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as detection limit of laboratory blanks, flagged with 781" />
    <attribute name="ebas_organization" value="LV33L, &quot;Latvian Environment, Geology and Meteorology Centre&quot;, , Monitoring  Department, Maskavas Str. 165, , LV-1019, Riga, Latvia" />
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    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme, World Data Centre for Aerosols, World Data Centre for Reactive Gases" />
    <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., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="Indriksone, Iveta, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Kanisceva, Aleksandra, aleksandra.kanisceva@lvgmc.lv, Latvian Environment Geology and Meteorology Centre, LEGMC, Monitoring Department, Maskavas 165, , 1019, Riga, Latvia" />
    <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, GAW-WDCA, GAW-WDCRG." />
  </variable>
  <variable name="sum_nitric_acid_and_nitrate_qc" shape="sum_nitric_acid_and_nitrate_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="sum_nitric_acid_and_nitrate_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrogen_dioxide" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrogen_dioxide_expressed_as_nitrogen_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="nitrogen_dioxide_qc nitrogen_dioxide_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="20240618144437" />
    <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="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="LV0010R" />
    <attribute name="ebas_platform_code" value="LV0010S" />
    <attribute name="ebas_station_name" value="Rucava" />
    <attribute name="ebas_station_latitude" value="56.161944" />
    <attribute name="ebas_station_longitude" value="21.173056" />
    <attribute name="ebas_station_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_altitude" value="18.0 m" />
    <attribute name="ebas_measurement_height" value="1.8 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrogen_dioxide" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="LV33L" />
    <attribute name="ebas_instrument_type" value="glass_sinter" />
    <attribute name="ebas_instrument_name" value="gls_d_0010" />
    <attribute name="ebas_instrument_manufacturer" value="Werner-Glas &amp; Instrument AB" />
    <attribute name="ebas_instrument_model" value="FK" />
    <attribute name="ebas_instrument_serial_number" value="96025" />
    <attribute name="ebas_analytical_laboratory_code" value="LV33L" />
    <attribute name="ebas_analytical_measurement_technique" value="spectrophotometric" />
    <attribute name="ebas_analytical_instrument_name" value="lambda_18" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="PerkinElmer" />
    <attribute name="ebas_analytical_instrument_model" value="Lambda 18 UV/Vis" />
    <attribute name="ebas_analytical_instrument_serial_number" value="75227" />
    <attribute name="ebas_method_ref" value="LV33L_lambda_18" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_flow_rate" value="0.5 l/min" />
    <attribute name="ebas_medium" value="Sintered glass" />
    <attribute name="ebas_coating_solution" value="NaI+NaOH" />
    <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 together with sampling head" />
    <attribute name="ebas_detection_limit" value="0.029 ug N/m3" />
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    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as detection limit of laboratory blanks, flagged with 781" />
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    <attribute name="ebas_framework_acronym" value="EMEP, GAW-WDCA, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme, World Data Centre for Aerosols, World Data Centre for Reactive Gases" />
    <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., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="Indriksone, Iveta, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Kanisceva, Aleksandra, aleksandra.kanisceva@lvgmc.lv, Latvian Environment Geology and Meteorology Centre, LEGMC, Monitoring Department, Maskavas 165, , 1019, Riga, Latvia" />
    <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, GAW-WDCA, GAW-WDCRG." />
  </variable>
  <variable name="nitrogen_dioxide_qc" shape="nitrogen_dioxide_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="nitrogen_dioxide_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>
