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  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Ground based in situ observations of smps at Helmos Mountain (GR0101R)" />
  <attribute name="keywords" value="ACTRIS, GR0101R, particle_number_size_distribution, pm10, GAW-WDCA, Helmos Mountain" />
  <attribute name="id" value="QHN8-VZFH.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, GAW-WDCA" />
  <attribute name="acknowledgement" value="Request acknowledgment details from data originator" />
  <attribute name="doi" value="https://doi.org/10.48597/QHN8-VZFH" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Konstantinos Eleftheriadis, Maria Gini, particle_number_size_distribution - smps at Helmos Mountain, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/QHN8-VZFH" />
  <attribute name="summary" value="Ground based in situ observations of smps at Helmos Mountain (GR0101R). These measurements are gathered as a part of the following projects ACTRIS, GAW-WDCA and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: particle_number_size_distribution in pm10, particle_number_size_distribution in pm10, particle_number_size_distribution in pm10" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="GR05L, National Centre of Scientific Research, Demokritos, Athens, Greece" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2022-06-17T09:42:13 UTC" />
  <attribute name="date_metadata_modified" value="2022-06-17T09:42:13 UTC" />
  <attribute name="creator_name" value="Konstantinos Eleftheriadis, Maria Gini" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value=", gini@ipta.demokritos.gr" />
  <attribute name="creator_institution" value=", &quot;NCSR Demokritos, ERL, DEM&quot;" />
  <attribute name="contributor_name" value="Maria Gini" />
  <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 (37.984 22.196262 2314.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
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  <attribute name="time_coverage_start" value="2021-01-01T00:00:00 UTC" />
  <attribute name="time_coverage_end" value="2022-01-01T00:00:00 UTC" />
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  <attribute name="timezone" value="UTC" />
  <attribute name="ebas_data_definition" value="EBAS_1.1" />
  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Konstantinos Eleftheriadis, Maria Gini, particle_number_size_distribution - smps at Helmos Mountain, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/QHN8-VZFH" />
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  <attribute name="ebas_file_creation" value="2023-12-17T05:08:58.480086 UTC" />
  <attribute name="ebas_export_state" value="2022-07-06T12:55:54.717000 UTC" />
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  <attribute name="ebas_revision_date" value="20220617094213" />
  <attribute name="ebas_version" value="1.1a" />
  <attribute name="ebas_version_description" value="initial revision, SMPS_control_lev2 v.0.0_1" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="1y" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_sample_duration" value="1h" />
  <attribute name="ebas_orig_time_res" value="5mn" />
  <attribute name="ebas_station_code" value="GR0101R" />
  <attribute name="ebas_platform_code" value="GR0101S" />
  <attribute name="ebas_station_name" value="Helmos Mountain" />
  <attribute name="ebas_station_wdca_id" value="GAWAGR__HAC" />
  <attribute name="ebas_station_gaw_id" value="HAC" />
  <attribute name="ebas_station_gaw_name" value="Helmos Mountain" />
  <attribute name="ebas_station_land_use" value="Gravel and stone" />
  <attribute name="ebas_station_setting" value="Mountain" />
  <attribute name="ebas_station_gaw_type" value="R" />
  <attribute name="ebas_station_wmo_region" value="6" />
  <attribute name="ebas_station_latitude" value="37.984265" />
  <attribute name="ebas_station_longitude" value="22.196262" />
  <attribute name="ebas_station_altitude" value="2340.0 m" />
  <attribute name="ebas_measuremenet_latitude" value="37.984" />
  <attribute name="ebas_measurement_altitude" value="2314.0 m" />
  <attribute name="ebas_measurement_height" value="6.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_laboratory_code" value="GR05L" />
  <attribute name="ebas_instrument_type" value="smps" />
  <attribute name="ebas_instrument_name" value="TROPOS-SMPS" />
  <attribute name="ebas_instrument_manufacturer" value="TROPOS" />
  <attribute name="ebas_instrument_model" value="TROPOS-SMPS" />
  <attribute name="ebas_instrument_serial_number" value="SMPS=TROPOS" />
  <attribute name="ebas_method_ref" value="GR05L__NRT_SMPS_lev2_1" />
  <attribute name="ebas_inlet_type" value="Impactor--direct" />
  <attribute name="ebas_inlet_description" value="PM10 impactor for a nominal flow of 30 l/m" />
  <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
  <attribute name="ebas_humidity_temperaure_control_description" value="sample dried to below 40% RH with nafion dryer operated with reduced pressure sheath air" />
  <attribute name="ebas_volume_std_temperature" value="273.15 K" />
  <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
  <attribute name="ebas_measurement_uncertainty_expl" value="uncertainty range between instruments in intercomparison by Wiedensohler et al. 2012. (AMT)" />
  <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
  <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
  <attribute name="ebas_organization" value="GR05L, National Centre of Scientific Research, , , &quot;Demokritos, Athens, Greece&quot;, , , , " />
  <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
  <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols" />
  <attribute name="ebas_framework_description" value="ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., 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." />
  <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
  <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
  <attribute name="ebas_originator" value="Gini, Maria, gini@ipta.demokritos.gr, NCSR Demokritos, DEM, ERL, Ag.Paraskevi, , 15310, Athens, Greece" />
  <attribute name="ebas_submitter" value="Gini, Maria, gini@ipta.demokritos.gr, NCSR Demokritos, DEM, ERL, Ag.Paraskevi, , 15310, Athens, Greece" />
  <attribute name="ebas_acknowledgement" value="Request acknowledgment details from data originator" />
  <attribute name="ebas_comment" value="none" />
  <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;Konstantinos Eleftheriadis, Maria Gini, particle_number_size_distribution - smps at Helmos Mountain, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/QHN8-VZFH&quot;,&#xA;    &quot;Set type code&quot;: &quot;TU&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;QHN8-VZFH.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/QHN8-VZFH&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/QHN8-VZFH&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-17T05:08:58.480086 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2022-07-06T12:55:54.717000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20210101000000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20220617094213&quot;,&#xA;    &quot;Version&quot;: &quot;1.1a&quot;,&#xA;    &quot;Version description&quot;: &quot;initial revision, SMPS_control_lev2 v.0.0_1&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;1y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1h&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1h&quot;,&#xA;    &quot;Orig. time res.&quot;: &quot;5mn&quot;,&#xA;    &quot;Station code&quot;: &quot;GR0101R&quot;,&#xA;    &quot;Platform code&quot;: &quot;GR0101S&quot;,&#xA;    &quot;Station name&quot;: &quot;Helmos Mountain&quot;,&#xA;    &quot;Station WDCA-ID&quot;: &quot;GAWAGR__HAC&quot;,&#xA;    &quot;Station GAW-ID&quot;: &quot;HAC&quot;,&#xA;    &quot;Station GAW-Name&quot;: &quot;Helmos Mountain&quot;,&#xA;    &quot;Station land use&quot;: &quot;Gravel and stone&quot;,&#xA;    &quot;Station setting&quot;: &quot;Mountain&quot;,&#xA;    &quot;Station GAW type&quot;: &quot;R&quot;,&#xA;    &quot;Station WMO region&quot;: &quot;6&quot;,&#xA;    &quot;Station latitude&quot;: &quot;37.984265&quot;,&#xA;    &quot;Station longitude&quot;: &quot;22.196262&quot;,&#xA;    &quot;Station altitude&quot;: &quot;2340.0 m&quot;,&#xA;    &quot;Measurement latitude&quot;: &quot;37.984&quot;,&#xA;    &quot;Measurement altitude&quot;: &quot;2314.0 m&quot;,&#xA;    &quot;Measurement height&quot;: &quot;6.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;GR05L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;smps&quot;,&#xA;    &quot;Instrument name&quot;: &quot;TROPOS-SMPS&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;TROPOS&quot;,&#xA;    &quot;Instrument model&quot;: &quot;TROPOS-SMPS&quot;,&#xA;    &quot;Instrument serial number&quot;: &quot;SMPS=TROPOS&quot;,&#xA;    &quot;Method ref&quot;: &quot;GR05L__NRT_SMPS_lev2_1&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Impactor--direct&quot;,&#xA;    &quot;Inlet description&quot;: &quot;PM10 impactor for a nominal flow of 30 l/m&quot;,&#xA;    &quot;Humidity/temperature control&quot;: &quot;Nafion dryer&quot;,&#xA;    &quot;Humidity/temperature control description&quot;: &quot;sample dried to below 40% RH with nafion dryer operated with reduced pressure sheath air&quot;,&#xA;    &quot;Volume std. temperature&quot;: &quot;273.15 K&quot;,&#xA;    &quot;Volume std. pressure&quot;: &quot;1013.25 hPa&quot;,&#xA;    &quot;Measurement uncertainty expl.&quot;: &quot;uncertainty range between instruments in intercomparison by Wiedensohler et al. 2012. (AMT)&quot;,&#xA;    &quot;Zero/negative values code&quot;: &quot;Zero possible&quot;,&#xA;    &quot;Zero/negative values&quot;: &quot;Zero values may appear due to statistical variations at very low concentrations&quot;,&#xA;    &quot;Organization&quot;: &quot;GR05L, National Centre of Scientific Research, , , \&quot;Demokritos, Athens, Greece\&quot;, , , , &quot;,&#xA;    &quot;Framework acronym&quot;: &quot;ACTRIS, GAW-WDCA&quot;,&#xA;    &quot;Framework name&quot;: &quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols&quot;,&#xA;    &quot;Framework description&quot;: &quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., 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.&quot;,&#xA;    &quot;Framework contact name&quot;: &quot;Cathrine Lund Myhre, Markus Fiebig&quot;,&#xA;    &quot;Framework contact email&quot;: &quot;clm@nilu.no, Markus.Fiebig@nilu.no&quot;,&#xA;    &quot;Originator&quot;: &quot;Gini, Maria, gini@ipta.demokritos.gr, NCSR Demokritos, DEM, ERL, Ag.Paraskevi, , 15310, Athens, Greece&quot;,&#xA;    &quot;Submitter&quot;: &quot;Gini, Maria, gini@ipta.demokritos.gr, NCSR Demokritos, DEM, ERL, Ag.Paraskevi, , 15310, Athens, Greece&quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;Request acknowledgment details from data originator&quot;,&#xA;    &quot;Comment&quot;: &quot;none&quot;&#xA;}" />
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    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="37.984265" />
    <attribute name="ebas_station_longitude" value="22.196262" />
    <attribute name="ebas_station_altitude" value="2340.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="37.984" />
    <attribute name="ebas_measurement_altitude" value="2314.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="relative_humidity" />
    <attribute name="ebas_unit" value="%" />
    <attribute name="ebas_matrix" value="instrument" />
    <attribute name="ebas_laboratory_code" value="GR05L" />
    <attribute name="ebas_instrument_type" value="smps" />
    <attribute name="ebas_instrument_name" value="TROPOS-SMPS" />
    <attribute name="ebas_instrument_manufacturer" value="TROPOS" />
    <attribute name="ebas_instrument_model" value="TROPOS-SMPS" />
    <attribute name="ebas_instrument_serial_number" value="SMPS=TROPOS" />
    <attribute name="ebas_method_ref" value="GR05L__NRT_SMPS_lev2_1" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM10 impactor for a nominal flow of 30 l/m" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_humidity_temperaure_control_description" value="sample dried to below 40% RH with nafion dryer operated with reduced pressure sheath air" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_measurement_uncertainty_expl" value="uncertainty range between instruments in intercomparison by Wiedensohler et al. 2012. (AMT)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="GR05L, National Centre of Scientific Research, , , &quot;Demokritos, Athens, Greece&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., 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." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
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    <attribute name="ebas_acknowledgement" value="Request acknowledgment details from data originator" />
    <attribute name="ebas_comment" value="none" />
  </variable>
  <variable name="relative_humidity_qc" shape="Location relative_humidity_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="relative_humidity_ebasmetadata" shape="Location metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="temperature" shape="Location time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="K" />
    <attribute name="ancillary_variables" value="temperature_qc temperature_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="20220617094213" />
    <attribute name="ebas_version" value="1.1a" />
    <attribute name="ebas_version_description" value="initial revision, SMPS_control_lev2 v.0.0_1" />
    <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="5mn" />
    <attribute name="ebas_station_code" value="GR0101R" />
    <attribute name="ebas_platform_code" value="GR0101S" />
    <attribute name="ebas_station_name" value="Helmos Mountain" />
    <attribute name="ebas_station_wdca_id" value="GAWAGR__HAC" />
    <attribute name="ebas_station_gaw_id" value="HAC" />
    <attribute name="ebas_station_gaw_name" value="Helmos Mountain" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="37.984265" />
    <attribute name="ebas_station_longitude" value="22.196262" />
    <attribute name="ebas_station_altitude" value="2340.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="37.984" />
    <attribute name="ebas_measurement_altitude" value="2314.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="temperature" />
    <attribute name="ebas_unit" value="K" />
    <attribute name="ebas_matrix" value="instrument" />
    <attribute name="ebas_laboratory_code" value="GR05L" />
    <attribute name="ebas_instrument_type" value="smps" />
    <attribute name="ebas_instrument_name" value="TROPOS-SMPS" />
    <attribute name="ebas_instrument_manufacturer" value="TROPOS" />
    <attribute name="ebas_instrument_model" value="TROPOS-SMPS" />
    <attribute name="ebas_instrument_serial_number" value="SMPS=TROPOS" />
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    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM10 impactor for a nominal flow of 30 l/m" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
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    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="GR05L, National Centre of Scientific Research, , , &quot;Demokritos, Athens, Greece&quot;, , , , " />
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    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., 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." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
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    <attribute name="ebas_acknowledgement" value="Request acknowledgment details from data originator" />
    <attribute name="ebas_comment" value="none" />
  </variable>
  <variable name="temperature_qc" shape="Location temperature_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="temperature_ebasmetadata" shape="Location metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="particle_number_size_distribution_amean" shape="D time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="1/cm3" />
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    <attribute name="cell_methods" value="time: mean" />
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    <attribute name="ebas_version_description" value="initial revision, SMPS_control_lev2 v.0.0_1" />
    <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="5mn" />
    <attribute name="ebas_station_code" value="GR0101R" />
    <attribute name="ebas_platform_code" value="GR0101S" />
    <attribute name="ebas_station_name" value="Helmos Mountain" />
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    <attribute name="ebas_station_gaw_id" value="HAC" />
    <attribute name="ebas_station_gaw_name" value="Helmos Mountain" />
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    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="37.984265" />
    <attribute name="ebas_station_longitude" value="22.196262" />
    <attribute name="ebas_station_altitude" value="2340.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="37.984" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="particle_number_size_distribution" />
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    <attribute name="ebas_matrix" value="pm10" />
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    <attribute name="ebas_instrument_type" value="smps" />
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    <attribute name="ebas_instrument_manufacturer" value="TROPOS" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
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    <attribute name="ebas_acknowledgement" value="Request acknowledgment details from data originator" />
    <attribute name="ebas_comment" value="none" />
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  <variable name="particle_number_size_distribution_amean_qc" shape="D particle_number_size_distribution_amean_qc_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="1/cm3" />
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    <attribute name="ebas_version_description" value="initial revision, SMPS_control_lev2 v.0.0_1" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="5mn" />
    <attribute name="ebas_station_code" value="GR0101R" />
    <attribute name="ebas_platform_code" value="GR0101S" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_longitude" value="22.196262" />
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    <attribute name="ebas_comment" value="none" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="1/cm3" />
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    <attribute name="ebas_version_description" value="initial revision, SMPS_control_lev2 v.0.0_1" />
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    <attribute name="ebas_station_longitude" value="22.196262" />
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    <attribute name="ebas_instrument_model" value="TROPOS-SMPS" />
    <attribute name="ebas_instrument_serial_number" value="SMPS=TROPOS" />
    <attribute name="ebas_method_ref" value="GR05L__NRT_SMPS_lev2_1" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM10 impactor for a nominal flow of 30 l/m" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_humidity_temperaure_control_description" value="sample dried to below 40% RH with nafion dryer operated with reduced pressure sheath air" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.0 1/cm3" />
    <attribute name="ebas_detection_limit_expl" value="Determined only by instrument counting statistics, no detection limit flag used" />
    <attribute name="ebas_measurement_uncertainty" value="10.0 %" />
    <attribute name="ebas_measurement_uncertainty_expl" value="uncertainty range between instruments in intercomparison by Wiedensohler et al. 2012. (AMT)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="GR05L, National Centre of Scientific Research, , , &quot;Demokritos, Athens, Greece&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., 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." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="Gini, Maria, gini@ipta.demokritos.gr, NCSR Demokritos, DEM, ERL, Ag.Paraskevi, , 15310, Athens, Greece" />
    <attribute name="ebas_submitter" value="Gini, Maria, gini@ipta.demokritos.gr, NCSR Demokritos, DEM, ERL, Ag.Paraskevi, , 15310, Athens, Greece" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgment details from data originator" />
    <attribute name="ebas_comment" value="none" />
  </variable>
  <variable name="particle_number_size_distribution_perc8413_qc" shape="D particle_number_size_distribution_perc8413_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="particle_number_size_distribution_perc8413_ebasmetadata" shape="D 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>
  <variable name="Location" shape="Location" type="String" />
  <variable name="D" shape="D" type="double" />
</netcdf>
