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  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Ground based in situ observations of nephelometer at Villeneuve d'Ascq (FR0027U)" />
  <attribute name="keywords" value="aerosol_light_backscattering_coefficient, FR0027U, aerosol, GAW-WDCA, ACTRIS, aerosol_light_scattering_coefficient, Villeneuve d'Ascq, volume_backwards_scattering_coefficient_in_air_due_to_dried_aerosol_particles, volume_scattering_coefficient_in_air_due_to_dried_aerosol_particles" />
  <attribute name="id" value="7SYE-KAXR.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, GAW-WDCA" />
  <attribute name="acknowledgement" value="For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
  <attribute name="doi" value="https://doi.org/10.48597/7SYE-KAXR" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Suzanne Crumeyrolle, Suzanne Crumeyrolle, Suzanne Crumeyrolle, Suzanne Crumeyrolle, Suzanne Crumeyrolle, Suzanne Crumeyrolle, aerosol_light_backscattering_coefficient, aerosol_light_scattering_coefficient - nephelometer at Villeneuve d'Ascq, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/7SYE-KAXR" />
  <attribute name="summary" value="Ground based in situ observations of nephelometer at Villeneuve d'Ascq (FR0027U). 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: aerosol_light_backscattering_coefficient in aerosol (volume_backwards_scattering_coefficient_in_air_due_to_dried_aerosol_particles), aerosol_light_backscattering_coefficient in aerosol (volume_backwards_scattering_coefficient_in_air_due_to_dried_aerosol_particles), aerosol_light_backscattering_coefficient in aerosol (volume_backwards_scattering_coefficient_in_air_due_to_dried_aerosol_particles), aerosol_light_scattering_coefficient in aerosol (volume_scattering_coefficient_in_air_due_to_dried_aerosol_particles), aerosol_light_scattering_coefficient in aerosol (volume_scattering_coefficient_in_air_due_to_dried_aerosol_particles), aerosol_light_scattering_coefficient in aerosol (volume_scattering_coefficient_in_air_due_to_dried_aerosol_particles)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="FR07L, Institut Mines Telecom Lille Douai, IMT Lille Douai, SAGE department, 941 rue Charles Bourseul, CS 10838, 59508, Douai, France" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2022-05-23T13:53:06 UTC" />
  <attribute name="date_metadata_modified" value="2022-05-23T13:53:06 UTC" />
  <attribute name="creator_name" value="Suzanne Crumeyrolle, Suzanne Crumeyrolle, Suzanne Crumeyrolle, Suzanne Crumeyrolle, Suzanne Crumeyrolle, Suzanne Crumeyrolle" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="suzanne.crumeyrolle@univ-lille.fr, suzanne.crumeyrolle@univ-lille.fr, suzanne.crumeyrolle@univ-lille.fr, suzanne.crumeyrolle@univ-lille.fr, suzanne.crumeyrolle@univ-lille.fr, suzanne.crumeyrolle@univ-lille.fr" />
  <attribute name="creator_institution" value="&quot;Universite de Lille, Laboratoire d'Optique Atmospherique&quot;, &quot;Universite de Lille, Laboratoire d'Optique Atmospherique&quot;, &quot;Universite de Lille, Laboratoire d'Optique Atmospherique&quot;, &quot;Universite de Lille, Laboratoire d'Optique Atmospherique&quot;, &quot;Universite de Lille, Laboratoire d'Optique Atmospherique&quot;, &quot;Universite de Lille, Laboratoire d'Optique Atmospherique&quot;" />
  <attribute name="contributor_name" value="Nicolas Pascal, Nicolas Pascal, Nicolas Pascal, Nicolas Pascal, Nicolas Pascal, Nicolas Pascal" />
  <attribute name="contributor_role" value="data submitter, data submitter, 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 (50.611 3.1403 70.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="50.611" />
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  <attribute name="geospatial_lon_min" type="double" value="3.1403" />
  <attribute name="geospatial_lon_max" type="double" value="3.1403" />
  <attribute name="geospatial_vertical_min" type="double" value="70.0" />
  <attribute name="geospatial_vertical_max" type="double" value="70.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2016-01-01T00:00:00 UTC" />
  <attribute name="time_coverage_end" value="2022-01-01T00:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0006-00-00T00:00:00" />
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  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Suzanne Crumeyrolle, Suzanne Crumeyrolle, Suzanne Crumeyrolle, Suzanne Crumeyrolle, Suzanne Crumeyrolle, Suzanne Crumeyrolle, aerosol_light_backscattering_coefficient, aerosol_light_scattering_coefficient - nephelometer at Villeneuve d'Ascq, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/7SYE-KAXR" />
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  <attribute name="ebas_file_creation" value="2023-12-14T05:25:51.204760 UTC" />
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  <attribute name="ebas_version_description" value="Initial version" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="6y" />
  <attribute name="ebas_resolution_code" value="1h" />
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  <attribute name="ebas_orig_time_res" value="1mn" />
  <attribute name="ebas_station_code" value="FR0027U" />
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  <attribute name="ebas_station_name" value="Villeneuve d'Ascq" />
  <attribute name="ebas_station_gaw_id" value="VDA" />
  <attribute name="ebas_station_land_use" value="Other" />
  <attribute name="ebas_station_setting" value="Suburban" />
  <attribute name="ebas_station_wmo_region" value="6" />
  <attribute name="ebas_station_latitude" value="50.611017" />
  <attribute name="ebas_station_longitude" value="3.14035" />
  <attribute name="ebas_station_altitude" value="70.0 m" />
  <attribute name="ebas_measuremenet_latitude" value="50.611" />
  <attribute name="ebas_measurement_longitude" value="3.1403" />
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  <attribute name="ebas_regime" value="IMG" />
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  <attribute name="ebas_instrument_manufacturer" value="Ecotech" />
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  <attribute name="ebas_inlet_type" value="Stainless steel" />
  <attribute name="ebas_inlet_description" value="Whole air inlet" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_humidity_temperaure_control_description" value="Room air temperature conditioned at 20 Celsius degrees" />
  <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="average value taken from Anderson et al. 1996 for statistical and calibration uncertainty" />
  <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="FR07L, Institut Mines Telecom Lille Douai, IMT Lille Douai, SAGE department, 941 rue Charles Bourseul, CS 10838, 59508, Douai, France" />
  <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="Crumeyrolle, Suzanne, suzanne.crumeyrolle@univ-lille.fr, Universite de Lille, , Laboratoire d'Optique Atmospherique, UFR de physique - P5 bis - P358, cité Scientifique, 59650, Villeneuve-d'Ascq, France" />
  <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
  <attribute name="ebas_acknowledgement" value="For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
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  <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;Suzanne Crumeyrolle, Suzanne Crumeyrolle, Suzanne Crumeyrolle, Suzanne Crumeyrolle, Suzanne Crumeyrolle, Suzanne Crumeyrolle, aerosol_light_backscattering_coefficient, aerosol_light_scattering_coefficient - nephelometer at Villeneuve d'Ascq, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/7SYE-KAXR&quot;,&#xA;    &quot;Set type code&quot;: &quot;TU&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;7SYE-KAXR.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/7SYE-KAXR&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/7SYE-KAXR&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-14T05:25:51.204760 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2022-05-23T13:53:06.290000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20160101000000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20220523135306&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Version description&quot;: &quot;Initial version&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;6y&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;    &quot;Station code&quot;: &quot;FR0027U&quot;,&#xA;    &quot;Platform code&quot;: &quot;FR0027S&quot;,&#xA;    &quot;Station name&quot;: &quot;Villeneuve d'Ascq&quot;,&#xA;    &quot;Station GAW-ID&quot;: &quot;VDA&quot;,&#xA;    &quot;Station land use&quot;: &quot;Other&quot;,&#xA;    &quot;Station setting&quot;: &quot;Suburban&quot;,&#xA;    &quot;Station WMO region&quot;: &quot;6&quot;,&#xA;    &quot;Station latitude&quot;: &quot;50.611017&quot;,&#xA;    &quot;Station longitude&quot;: &quot;3.14035&quot;,&#xA;    &quot;Station altitude&quot;: &quot;70.0 m&quot;,&#xA;    &quot;Measurement latitude&quot;: &quot;50.611&quot;,&#xA;    &quot;Measurement longitude&quot;: &quot;3.1403&quot;,&#xA;    &quot;Measurement altitude&quot;: &quot;70.0 m&quot;,&#xA;    &quot;Measurement height&quot;: &quot;20.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;FR07L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;nephelometer&quot;,&#xA;    &quot;Instrument name&quot;: &quot;nephelometer_Ecotech_Aurora3000&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;Ecotech&quot;,&#xA;    &quot;Instrument model&quot;: &quot;Aurora3000&quot;,&#xA;    &quot;Instrument serial number&quot;: &quot;17-0833&quot;,&#xA;    &quot;Method ref&quot;: &quot;FR07L_Ecotech_Aurora3000_VDA&quot;,&#xA;    &quot;Standard method&quot;: &quot;cal-gas=CO2+AIR_truncation-correction=Müller2011&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Stainless steel&quot;,&#xA;    &quot;Inlet description&quot;: &quot;Whole air inlet&quot;,&#xA;    &quot;Humidity/temperature control&quot;: &quot;None&quot;,&#xA;    &quot;Humidity/temperature control description&quot;: &quot;Room air temperature conditioned at 20 Celsius degrees&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;average value taken from Anderson et al. 1996 for statistical and calibration uncertainty&quot;,&#xA;    &quot;Zero/negative values code&quot;: &quot;Zero/negative possible&quot;,&#xA;    &quot;Zero/negative values&quot;: &quot;Zero and neg. values may appear due to statistical variations at very low concentrations&quot;,&#xA;    &quot;Organization&quot;: &quot;FR07L, Institut Mines Telecom Lille Douai, IMT Lille Douai, SAGE department, 941 rue Charles Bourseul, CS 10838, 59508, Douai, France&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;Crumeyrolle, Suzanne, suzanne.crumeyrolle@univ-lille.fr, Universite de Lille, , Laboratoire d'Optique Atmospherique, UFR de physique - P5 bis - P358, cité Scientifique, 59650, Villeneuve-d'Ascq, France&quot;,&#xA;    &quot;Submitter&quot;: &quot;Pascal, Nicolas, , , , , , , , , &quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment&quot;&#xA;}" />
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    <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="FR07L, Institut Mines Telecom Lille Douai, IMT Lille Douai, SAGE department, 941 rue Charles Bourseul, CS 10838, 59508, Douai, France" />
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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="For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="standard_name" value="relative_humidity" />
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    <attribute name="ebas_statistics" value="arithmetic mean" />
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    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
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    <attribute name="units" value="K" />
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  <variable name="aerosol_light_backscattering_coefficient_amean_0_ebasmetadata" shape="metadata_time" type="String">
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