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  <attribute name="title" value="Ground based in situ observations of nephelometer at Shenandoah National Park-Big Meadows (VA28) (US4828R)" />
  <attribute name="keywords" value="GAW-WDCA, IMPROVE, Shenandoah National Park-Big Meadows (VA28), US4828R" />
  <attribute name="id" value="Y848-NK7M.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="GAW-WDCA, IMPROVE" />
  <attribute name="acknowledgement" value="Request acknowledgement details from data originator" />
  <attribute name="doi" value="https://doi.org/10.48597/Y848-NK7M" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel,  - nephelometer at Shenandoah National Park-Big Meadows (VA28), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/Y848-NK7M" />
  <attribute name="summary" value="Ground based in situ observations of nephelometer at Shenandoah National Park-Big Meadows (VA28) (US4828R). These measurements are gathered as a part of the following projects GAW-WDCA, IMPROVE and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: " />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="US12O, National Park Service, Headquarters, NPS, 1849 C Street NW, , 20240, Washington DC, USA" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2016-06-20T13:14:34 UTC" />
  <attribute name="date_metadata_modified" value="2016-06-20T13:14:34 UTC" />
  <attribute name="creator_name" value="Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value=", bret.schichtel@colostate.edu, , bret.schichtel@colostate.edu, , bret.schichtel@colostate.edu, , bret.schichtel@colostate.edu, , bret.schichtel@colostate.edu, , bret.schichtel@colostate.edu, , bret.schichtel@colostate.edu, , bret.schichtel@colostate.edu, , bret.schichtel@colostate.edu, , bret.schichtel@colostate.edu, , bret.schichtel@colostate.edu, , bret.schichtel@colostate.edu, , bret.schichtel@colostate.edu, , bret.schichtel@colostate.edu, , bret.schichtel@colostate.edu, , bret.schichtel@colostate.edu, , bret.schichtel@colostate.edu, , bret.schichtel@colostate.edu" />
  <attribute name="creator_institution" value=", &quot;Cooperative Institute for Research in the Atmosphere, CIRA&quot;, , &quot;Cooperative Institute for Research in the Atmosphere, CIRA&quot;, , &quot;Cooperative Institute for Research in the Atmosphere, CIRA&quot;, , &quot;Cooperative Institute for Research in the Atmosphere, CIRA&quot;, , &quot;Cooperative Institute for Research in the Atmosphere, CIRA&quot;, , &quot;Cooperative Institute for Research in the Atmosphere, CIRA&quot;, , &quot;Cooperative Institute for Research in the Atmosphere, CIRA&quot;, , &quot;Cooperative Institute for Research in the Atmosphere, CIRA&quot;, , &quot;Cooperative Institute for Research in the Atmosphere, CIRA&quot;, , &quot;Cooperative Institute for Research in the Atmosphere, CIRA&quot;, , &quot;Cooperative Institute for Research in the Atmosphere, CIRA&quot;, , &quot;Cooperative Institute for Research in the Atmosphere, CIRA&quot;, , &quot;Cooperative Institute for Research in the Atmosphere, CIRA&quot;, , &quot;Cooperative Institute for Research in the Atmosphere, CIRA&quot;, , &quot;Cooperative Institute for Research in the Atmosphere, CIRA&quot;, , &quot;Cooperative Institute for Research in the Atmosphere, CIRA&quot;, , &quot;Cooperative Institute for Research in the Atmosphere, CIRA&quot;, , &quot;Cooperative Institute for Research in the Atmosphere, CIRA&quot;" />
  <attribute name="contributor_name" value="Derek Day, William Malm, Derek Day, William Malm, Derek Day, William Malm, Derek Day, William Malm, Derek Day, William Malm, Derek Day, William Malm, Derek Day, William Malm, Derek Day, William Malm, Derek Day, William Malm, Derek Day, William Malm, Derek Day, William Malm, Derek Day, William Malm, Derek Day, William Malm, Derek Day, William Malm, Derek Day, William Malm, Derek Day, William Malm, Derek Day, William Malm, Derek Day, William Malm" />
  <attribute name="contributor_role" value="data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter" />
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  <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" />
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  <attribute name="time_coverage_end" value="2014-10-02T05:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0017-09-00T05:00:00" />
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  <attribute name="timezone" value="UTC" />
  <attribute name="ebas_data_definition" value="EBAS_1.1" />
  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel, Derek Day, Bret Schichtel,  - nephelometer at Shenandoah National Park-Big Meadows (VA28), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/Y848-NK7M" />
  <attribute name="ebas_set_type_code" value="TU" />
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  <attribute name="ebas_version_description" value="initial revision, cloud-screened, trace-gas corrected, manually inspected" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="18y" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_sample_duration" value="1h" />
  <attribute name="ebas_orig_time_res" value="1mn" />
  <attribute name="ebas_station_code" value="US4828R" />
  <attribute name="ebas_platform_code" value="US4828S" />
  <attribute name="ebas_station_name" value="Shenandoah National Park-Big Meadows (VA28)" />
  <attribute name="ebas_station_latitude" value="38.5225" />
  <attribute name="ebas_station_longitude" value="-78.4358" />
  <attribute name="ebas_station_altitude" value="1074.0 m" />
  <attribute name="ebas_measurement_height" value="3.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="instrument" />
  <attribute name="ebas_laboratory_code" value="US11L" />
  <attribute name="ebas_instrument_type" value="nephelometer" />
  <attribute name="ebas_instrument_name" value="Optec-NGN-2_US4828" />
  <attribute name="ebas_instrument_manufacturer" value="Optech" />
  <attribute name="ebas_instrument_model" value="NGN-2" />
  <attribute name="ebas_instrument_serial_number" value="025" />
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  <attribute name="ebas_standard_method" value="cal-gas=HFC-134a+AIR_truncation-correction=none+SOP=IMPROVE_nephelometer_2004" />
  <attribute name="ebas_inlet_type" value="Hat or hood" />
  <attribute name="ebas_inlet_description" value="open face inlet with rain roof and rain flap, Digitel, flow 140 l/min" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_humidity_temperaure_control_description" value="passive, sample heated from atmospheric to instrument temperature" />
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  <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
  <attribute name="ebas_measurement_uncertainty_expl" value="calculated from replicate samples" />
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  <attribute name="ebas_framework_name" value="World Data Centre for Aerosols, IMPROVE" />
  <attribute name="ebas_framework_description" value="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., http://vista.cira.colostate.edu/improve/Publications/OtherDocs/IMPROVEDataGuide/IMPROVEDataGuide.htm" />
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  <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  <attribute name="ebas_comment" value="NO truncation correction" />
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   &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/Y848-NK7M&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/Y848-NK7M&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-13T09:18:35.503469 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2018-10-23T09:13:20.103000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;19970102000000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20160620131434&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Version description&quot;: &quot;initial revision, cloud-screened, trace-gas corrected, 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;18y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1h&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1h&quot;,&#xA;    &quot;Orig. time res.&quot;: &quot;1mn&quot;,&#xA; 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    <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="pressure_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="temperature" shape="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="20160620131434" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, cloud-screened, trace-gas corrected, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="US4828R" />
    <attribute name="ebas_platform_code" value="US4828S" />
    <attribute name="ebas_station_name" value="Shenandoah National Park-Big Meadows (VA28)" />
    <attribute name="ebas_station_latitude" value="38.5225" />
    <attribute name="ebas_station_longitude" value="-78.4358" />
    <attribute name="ebas_station_altitude" value="1074.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 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="US11L" />
    <attribute name="ebas_instrument_type" value="nephelometer" />
    <attribute name="ebas_instrument_name" value="Optec-NGN-2_US4828" />
    <attribute name="ebas_instrument_manufacturer" value="Optech" />
    <attribute name="ebas_instrument_model" value="NGN-2" />
    <attribute name="ebas_instrument_serial_number" value="025" />
    <attribute name="ebas_method_ref" value="US11L_IMPROVE_nephelometer_2004" />
    <attribute name="ebas_standard_method" value="cal-gas=HFC-134a+AIR_truncation-correction=none+SOP=IMPROVE_nephelometer_2004" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="open face inlet with rain roof and rain flap, Digitel, flow 140 l/min" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="passive, sample heated from atmospheric to instrument temperature" />
    <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="calculated from replicate samples" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="US12O, &quot;National Park Service, Headquarters&quot;, NPS, , &quot;1849 C Street NW, , 20240, Washington DC, USA&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="GAW-WDCA, IMPROVE" />
    <attribute name="ebas_framework_name" value="World Data Centre for Aerosols, IMPROVE" />
    <attribute name="ebas_framework_description" value="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., http://vista.cira.colostate.edu/improve/Publications/OtherDocs/IMPROVEDataGuide/IMPROVEDataGuide.htm" />
    <attribute name="ebas_framework_contact_name" value="Markus Fiebig, Paul Eckhardt" />
    <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no, pe@nilu.no" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="NO truncation correction" />
  </variable>
  <variable name="temperature_qc" shape="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="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>
