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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 cpc at Appalachian State University, Boone (NC) (US3446C)" />
  <attribute name="keywords" value="NOAA-ESRL, US3446C, particle_number_concentration, aerosol, GAW-WDCA, number_concentration_of_particles_in_dry_aerosol_particles_in_air, Appalachian State University, Boone (NC)" />
  <attribute name="id" value="K63N-XEKF.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="GAW-WDCA, NOAA-ESRL" />
  <attribute name="acknowledgement" type="double" />
  <attribute name="doi" value="https://doi.org/10.48597/K63N-XEKF" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="James Sherman, James Sherman, James Sherman, James Sherman, particle_number_concentration - cpc at Appalachian State University, Boone (NC), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/K63N-XEKF" />
  <attribute name="summary" value="Ground based in situ observations of cpc at Appalachian State University, Boone (NC) (US3446C). These measurements are gathered as a part of the following projects GAW-WDCA, NOAA-ESRL and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: particle_number_concentration in aerosol (number_concentration_of_particles_in_dry_aerosol_particles_in_air), particle_number_concentration in aerosol (number_concentration_of_particles_in_dry_aerosol_particles_in_air), particle_number_concentration in aerosol (number_concentration_of_particles_in_dry_aerosol_particles_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="US10L, Appalachian State University, AppalAIR, Appalachian Atmospheric Interdisciplinary Research Facility, AppalAIR, c/o James Sherman - CAP Building Room 325, CAP Building Room 325, 28608, Boone NC, United States" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2020-02-16T19:04:46 UTC" />
  <attribute name="date_metadata_modified" value="2020-02-16T19:04:46 UTC" />
  <attribute name="creator_name" value="James Sherman, James Sherman, James Sherman, James Sherman" />
  <attribute name="creator_type" value="person" />
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  <attribute name="contributor_name" value="James Sherman, James Sherman, James Sherman, James Sherman" />
  <attribute name="contributor_role" value="data submitter, data submitter, 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 (36.2 -81.7 1100.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="36.2" />
  <attribute name="geospatial_lat_max" type="double" value="36.2" />
  <attribute name="geospatial_lon_min" type="double" value="-81.7" />
  <attribute name="geospatial_lon_max" type="double" value="-81.7" />
  <attribute name="geospatial_vertical_min" type="double" value="1100.0" />
  <attribute name="geospatial_vertical_max" type="double" value="1100.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2009-06-01T00:00:00 UTC" />
  <attribute name="time_coverage_end" value="2013-08-23T14:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0004-02-22T14:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-00T01:00:00" />
  <attribute name="timezone" value="UTC" />
  <attribute name="ebas_data_definition" value="EBAS_1.1" />
  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="James Sherman, James Sherman, James Sherman, James Sherman, particle_number_concentration - cpc at Appalachian State University, Boone (NC), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/K63N-XEKF" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="K63N-XEKF.nc" />
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  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/K63N-XEKF" />
  <attribute name="ebas_file_creation" value="2023-12-11T15:20:33.419367 UTC" />
  <attribute name="ebas_export_state" value="2018-11-14T11:51:00.000000 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="20090601000000" />
  <attribute name="ebas_revision_date" value="20200216190446" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="4y" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_station_code" value="US3446C" />
  <attribute name="ebas_platform_code" value="US3446S" />
  <attribute name="ebas_station_name" value="Appalachian State University, Boone (NC)" />
  <attribute name="ebas_station_latitude" value="36.2" />
  <attribute name="ebas_station_longitude" value="-81.7" />
  <attribute name="ebas_station_altitude" value="1100.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="aerosol" />
  <attribute name="ebas_laboratory_code" value="US10L" />
  <attribute name="ebas_instrument_type" value="cpc" />
  <attribute name="ebas_instrument_name" value="TSI_3760_APP" />
  <attribute name="ebas_method_ref" value="US10L_cpc_ref" />
  <attribute name="ebas_organization" value="US10L, &quot;Appalachian State University, AppalAIR, Appalachian Atmospheric Interdisciplinary Research Facility&quot;, AppalAIR, , &quot;c/o James Sherman - CAP Building Room 325, CAP Building Room 325, 28608, Boone NC, United States&quot;, , , , " />
  <attribute name="ebas_framework_acronym" value="GAW-WDCA, NOAA-ESRL" />
  <attribute name="ebas_framework_name" value="World Data Centre for Aerosols, " />
  <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., " />
  <attribute name="ebas_framework_contact_name" value="Markus Fiebig, Markus Fiebig" />
  <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no, Markus.Fiebig@nilu.no" />
  <attribute name="ebas_originator" value="Sherman, James, , , , , , , , , " />
  <attribute name="ebas_submitter" value="Sherman, James, , , , , , , , , " />
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  <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;James Sherman, James Sherman, James Sherman, James Sherman, particle_number_concentration - cpc at Appalachian State University, Boone (NC), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/K63N-XEKF&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;K63N-XEKF.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/K63N-XEKF&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/K63N-XEKF&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-11T15:20:33.419367 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2018-11-14T11:51:00.000000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20090601000000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20200216190446&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;4y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1h&quot;,&#xA;    &quot;Station code&quot;: &quot;US3446C&quot;,&#xA;    &quot;Platform code&quot;: &quot;US3446S&quot;,&#xA;    &quot;Station name&quot;: &quot;Appalachian State University, Boone (NC)&quot;,&#xA;    &quot;Station latitude&quot;: &quot;36.2&quot;,&#xA;    &quot;Station longitude&quot;: &quot;-81.7&quot;,&#xA;    &quot;Station altitude&quot;: &quot;1100.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Matrix&quot;: &quot;aerosol&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;US10L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;cpc&quot;,&#xA;    &quot;Instrument name&quot;: &quot;TSI_3760_APP&quot;,&#xA;    &quot;Method ref&quot;: &quot;US10L_cpc_ref&quot;,&#xA;    &quot;Organization&quot;: &quot;US10L, \&quot;Appalachian State University, AppalAIR, Appalachian Atmospheric Interdisciplinary Research Facility\&quot;, AppalAIR, , \&quot;c/o James Sherman - CAP Building Room 325, CAP Building Room 325, 28608, Boone NC, United States\&quot;, , , , &quot;,&#xA;    &quot;Framework acronym&quot;: &quot;GAW-WDCA, NOAA-ESRL&quot;,&#xA;    &quot;Framework name&quot;: &quot;World Data Centre for Aerosols, &quot;,&#xA;    &quot;Framework description&quot;: &quot;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;Markus Fiebig, Markus Fiebig&quot;,&#xA;    &quot;Framework contact email&quot;: &quot;Markus.Fiebig@nilu.no, Markus.Fiebig@nilu.no&quot;,&#xA;    &quot;Originator&quot;: &quot;Sherman, James, , , , , , , , , &quot;,&#xA;    &quot;Submitter&quot;: &quot;Sherman, James, , , , , , , , , &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="28310" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="4" />
  <dimension name="pressure_qc_flags" length="2" />
  <dimension name="temperature_qc_flags" length="2" />
  <dimension name="particle_number_concentration_amean_qc_flags" length="2" />
  <dimension name="particle_number_concentration_prec1587_qc_flags" length="2" />
  <dimension name="particle_number_concentration_perc8413_qc_flags" length="2" />
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    <attribute name="time_coverage_start" value="2009-06-01T00:30:00Z" />
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    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="4713.0" />
    <attribute name="time_coverage_duration" value="P0Y0M1544DT13H0M0.000S" />
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  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-18" />
    <attribute name="nciso_version" value="2.4.8" />
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  <variable name="time_bnds" shape="time tbnds" type="double">
    <attribute name="long_name" value="time bounds for measurement" />
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    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
  </variable>
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="air_pressure" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="hPa" />
    <attribute name="ancillary_variables" value="pressure_qc pressure_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="20190204112743" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="US3446C" />
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    <attribute name="ebas_framework_acronym" value="GAW-WDCA, NOAA-ESRL" />
    <attribute name="ebas_framework_name" value="World Data Centre for Aerosols, " />
    <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., " />
    <attribute name="ebas_framework_contact_name" value="Markus Fiebig, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no, Markus.Fiebig@nilu.no" />
  </variable>
  <variable name="particle_number_concentration_prec1587_qc" shape="particle_number_concentration_prec1587_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_concentration_prec1587_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="particle_number_concentration_perc8413" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="number_concentration_of_particles_in_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="1/cm3" />
    <attribute name="ancillary_variables" value="particle_number_concentration_perc8413_qc particle_number_concentration_perc8413_ebasmetadata" />
    <attribute name="cell_methods" value="time: percentile:84.13" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20200216190446" />
    <attribute name="ebas_statistics" value="percentile:84.13" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="US3446C" />
    <attribute name="ebas_platform_code" value="US3446S" />
    <attribute name="ebas_station_name" value="Appalachian State University, Boone (NC)" />
    <attribute name="ebas_station_latitude" value="36.2" />
    <attribute name="ebas_station_longitude" value="-81.7" />
    <attribute name="ebas_station_altitude" value="1100.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="particle_number_concentration" />
    <attribute name="ebas_unit" value="1/cm3" />
    <attribute name="ebas_matrix" value="aerosol" />
    <attribute name="ebas_laboratory_code" value="US10L" />
    <attribute name="ebas_instrument_type" value="cpc" />
    <attribute name="ebas_instrument_name" value="TSI_3760_APP" />
    <attribute name="ebas_method_ref" value="US10L_cpc_ref" />
    <attribute name="ebas_organization" value="US10L, &quot;Appalachian State University, AppalAIR, Appalachian Atmospheric Interdisciplinary Research Facility&quot;, AppalAIR, , &quot;c/o James Sherman - CAP Building Room 325, CAP Building Room 325, 28608, Boone NC, United States&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="GAW-WDCA, NOAA-ESRL" />
    <attribute name="ebas_framework_name" value="World Data Centre for Aerosols, " />
    <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., " />
    <attribute name="ebas_framework_contact_name" value="Markus Fiebig, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no, Markus.Fiebig@nilu.no" />
  </variable>
  <variable name="particle_number_concentration_perc8413_qc" shape="particle_number_concentration_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_concentration_perc8413_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>
