EBAS:TV7X-BAQX.nc eng UTF8 dataset John Ogren, John Ogren, John Ogren, John Ogren, John Ogren, John Ogren US06L, National Oceanic and Atmospheric Administration, NOAA/ESRL/GMD, Earth System Research Laboratory, Global Monitoring Division, 325 Broadway, CO 80305-3, Boulder, U.S.A. John.A.Ogren@noaa.gov, John.A.Ogren@noaa.gov, John.A.Ogren@noaa.gov, John.A.Ogren@noaa.gov, John.A.Ogren@noaa.gov, John.A.Ogren@noaa.gov ebas.nilu.no WWW:LINK web browser information pointOfContact 2026-05-17 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) 1 temporal 52608 3600.0 area Ground based in situ observations of aerosol_absorption_coefficient at Barrow (US0008R) using filter_absorption_photometer 2019-01-09T21:02:11 creation EBAS John Ogren, John Ogren, John Ogren, John Ogren, John Ogren, John Ogren US06L, National Oceanic and Atmospheric Administration, NOAA/ESRL/GMD, Earth System Research Laboratory, Global Monitoring Division, 325 Broadway, CO 80305-3, Boulder, U.S.A. John.A.Ogren@noaa.gov, John.A.Ogren@noaa.gov, John.A.Ogren@noaa.gov, John.A.Ogren@noaa.gov, John.A.Ogren@noaa.gov, John.A.Ogren@noaa.gov ebas.nilu.no WWW:LINK web browser information originator John Ogren, John Ogren, John Ogren, John Ogren, John Ogren, John Ogren data submitter, data submitter, data submitter, data submitter, data submitter, data submitter { "Data definition": "EBAS_1.1", "Data license": "https://creativecommons.org/licenses/by/4.0/", "Citation": "John Ogren, John Ogren, John Ogren, John Ogren, John Ogren, John Ogren, aerosol_absorption_coefficient - filter_absorption_photometer at Barrow, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/TV7X-BAQX", "Set type code": "TU", "Timezone": "UTC", "File name": "TV7X-BAQX.nc", "Represents DOI": "https://doi.org/10.48597/TV7X-BAQX", "Contains data from DOI": "https://doi.org/10.48597/TV7X-BAQX", "File creation": "2023-12-11T15:00:29.993799 UTC", "Export state": "2020-03-12T12:50:59.767000 UTC", "Export filter": "exclude-900,exclude-invalid", "Startdate": "19910101000000", "Revision date": "20190109210211", "Version": "1", "Version description": "Version numbering not tracked, generated by data.aggregate.ebas r4678 -- Processing lev0-lev1: process_lev0_lev1_AE31 V.1.00.02 -- Processing lev1-lev2: process_lev1_lev2_general V.1.00.02", "Data level": "2", "Period code": "6y", "Resolution code": "1h", "Sample duration": "1h", "Orig. time res.": "1mn", "Station code": "US0008R", "Platform code": "US0008S", "Station name": "Barrow", "Station WDCA-ID": "GAWAUSAKBRW", "Station GAW-ID": "BRW", "Station GAW-Name": "Barrow (AK)", "Station land use": "Wetland", "Station setting": "Polar", "Station GAW type": "G", "Station WMO region": "4", "Station latitude": "71.3230133057", "Station longitude": "-156.6114654541", "Station altitude": "11.0 m", "Measurement height": "10.0 m", "Regime": "IMG", "Component": "aerosol_absorption_coefficient", "Unit": "1/Mm", "Matrix": "aerosol", "Laboratory code": "US06L", "Instrument type": "filter_absorption_photometer", "Instrument name": "Magee_AE8_BRW", "Instrument manufacturer": "Magee", "Instrument model": "AE8", "Instrument serial number": "880202", "Method ref": "US06L_aethalometer", "Standard method": "SOP=GAW227", "Inlet type": "Hat or hood", "Humidity/temperature control": "None", "Volume std. temperature": "273.15 K", "Volume std. pressure": "1013.25 hPa", "Detection limit": "0.112857 1/Mm", "Detection limit expl.": "Determined by instrument noise characteristics, no detection limit flag used", "Measurement uncertainty": "25.0 %", "Measurement uncertainty expl.": "Intercomparisons with thermo-optical analysis have shown an uncertainty of a faktor 2 regardless specific absorption cross-section assumed.", "Zero/negative values code": "Zero/negative possible", "Zero/negative values": "Zero and neg. values may appear due to statistical variations at very low concentrations", "Organization": "US06L, National Oceanic and Atmospheric Administration, NOAA/ESRL/GMD, \"Earth System Research Laboratory, Global Monitoring Division\", 325 Broadway, , CO 80305-3, Boulder, U.S.A.", "Framework acronym": "GAW-WDCA, NOAA-ESRL", "Framework name": "World Data Centre for Aerosols, ", "Framework description": "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., ", "Framework contact name": "Markus Fiebig, Markus Fiebig", "Framework contact email": "Markus.Fiebig@nilu.no, Markus.Fiebig@nilu.no", "Originator": "Ogren, John, John.A.Ogren@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, \"Boulder, CO\", USA", "Submitter": "Ogren, John, John.A.Ogren@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, \"Boulder, CO\", USA", "Acknowledgement": "Request acknowledgement details from data originator", "Comment": "calibration factor / mean ratio=1.0; sample_spot_area=5e-5 m2; defaults assumed for mean ratio and spot area" } Ground based in situ observations of aerosol_absorption_coefficient at Barrow (US0008R) using filter_absorption_photometer. 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: aerosol_absorption_coefficient in aerosol (volume_absorption_coefficient_in_air_due_to_dried_aerosol_particles), aerosol_absorption_coefficient in aerosol (volume_absorption_coefficient_in_air_due_to_dried_aerosol_particles), aerosol_absorption_coefficient in aerosol (volume_absorption_coefficient_in_air_due_to_dried_aerosol_particles) Request acknowledgement details from data originator John Ogren, John Ogren, John Ogren, John Ogren, John Ogren, John Ogren US06L, National Oceanic and Atmospheric Administration, NOAA/ESRL/GMD, Earth System Research Laboratory, Global Monitoring Division, 325 Broadway, CO 80305-3, Boulder, U.S.A. John.A.Ogren@noaa.gov, John.A.Ogren@noaa.gov, John.A.Ogren@noaa.gov, John.A.Ogren@noaa.gov, John.A.Ogren@noaa.gov, John.A.Ogren@noaa.gov ebas.nilu.no WWW:LINK web browser information pointOfContact Barrow NOAA-ESRL US0008R aerosol GAW-WDCA volume_absorption_coefficient_in_air_due_to_dried_aerosol_particles aerosol_absorption_coefficient theme GAW-WDCA, NOAA-ESRL project NILU - Norwegian Institute for Air Research, ATMOS, EBAS dataCenter volume_absorption_coefficient_in_air_due_to_dried_aerosol_particles status_flag volume_absorption_coefficient_in_air_due_to_dried_aerosol_particles status_flag volume_absorption_coefficient_in_air_due_to_dried_aerosol_particles status_flag time time theme CF-1.7, ACDD-1.3 https://creativecommons.org/licenses/by/4.0/ GAW-WDCA, NOAA-ESRL largerWorkCitation project eng climatologyMeteorologyAtmosphere 1 -156.6114654541 -156.6114654541 71.3230133057 71.3230133057 seconds 1991-01-01T00:30:00Z 1996-12-31T23:30:00Z 11.0 11.0 time_bnds double time bounds for measurement metadata_time_bnds double time bounds for ebas metadata intervals aerosol_absorption_coefficient_amean double (volume_absorption_coefficient_in_air_due_to_dried_aerosol_particles) aerosol_absorption_coefficient_amean_qc int (status_flag) aerosol_absorption_coefficient_amean_ebasmetadata String ebas metadata for different time intervals; json encoded aerosol_absorption_coefficient_prec1587 double (volume_absorption_coefficient_in_air_due_to_dried_aerosol_particles) aerosol_absorption_coefficient_prec1587_qc int (status_flag) aerosol_absorption_coefficient_prec1587_ebasmetadata String ebas metadata for different time intervals; json encoded aerosol_absorption_coefficient_perc8413 double (volume_absorption_coefficient_in_air_due_to_dried_aerosol_particles) aerosol_absorption_coefficient_perc8413_qc int (status_flag) aerosol_absorption_coefficient_perc8413_ebasmetadata String ebas metadata for different time intervals; json encoded time double time of measurement (time) metadata_time double time of ebas metadata intervals (time) NILU - Norwegian Institute for Air Research, ATMOS, EBAS ebas@nilu.no https://www.nilu.no/ WWW:LINK web browser URL for the data publisher This URL provides contact information for the publisher of this dataset information publisher OPeNDAP dataset None This record was translated from NcML using UnidataDD2MI.xsl Version 2.3.4. (2026-05-17T22:52:22.625Z)