EBAS:A6HJ-443Z.nc eng UTF8 dataset Markku Kulmala, Tuukka Petaja, Aki Virkkula, Krista Luoma FI03L, University of Helsinki, UHEL, Institute for Atmospheric and Earth System Research (INAR), PO BOX 64, FI-00014, University of Helsinki, Finland , tuukka.petaja@helsinki.fi, aki.virkkula@helsinki.fi, krista.q.luoma@helsinki.fi ebas.nilu.no WWW:LINK web browser information pointOfContact 2026-05-18 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) 1 temporal 8760 3600.0 area Ground based in situ observations of filter_absorption_photometer at Hyytiälä (FI0050R) 2019-02-08T10:12:17 creation EBAS Markku Kulmala, Tuukka Petaja, Aki Virkkula, Krista Luoma FI03L, University of Helsinki, UHEL, Institute for Atmospheric and Earth System Research (INAR), PO BOX 64, FI-00014, University of Helsinki, Finland , tuukka.petaja@helsinki.fi, aki.virkkula@helsinki.fi, krista.q.luoma@helsinki.fi ebas.nilu.no WWW:LINK web browser information originator Krista Luoma data submitter { "Data definition": "EBAS_1.1", "Data license": "https://creativecommons.org/licenses/by/4.0/", "Citation": "Markku Kulmala, Tuukka Petaja, Aki Virkkula, Krista Luoma, - filter_absorption_photometer at Hyytiälä, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/A6HJ-443Z", "Set type code": "TU", "Timezone": "UTC", "File name": "A6HJ-443Z.nc", "Represents DOI": "https://doi.org/10.48597/A6HJ-443Z", "Contains data from DOI": "https://doi.org/10.48597/A6HJ-443Z", "File creation": "2023-12-09T15:40:49.319118 UTC", "Export state": "2019-02-08T10:01:07.367000 UTC", "Export filter": "exclude-900,exclude-invalid", "Startdate": "20170101000000", "Revision date": "20190208101217", "Version": "1", "Version description": "initial revision, aeth_control_lvl0_v1 -- Processing lev0-lev1: process_lev0_lev1_AE31 V.1.01.00-svn_1643M -- Processing lev1-lev2: process_lev1_lev2_general V.1.01.00-svn_1643M", "Statistics": "arithmetic mean", "Data level": "2", "Period code": "1y", "Resolution code": "1h", "Sample duration": "1h", "Orig. time res.": "10mn", "Station code": "FI0050R", "Platform code": "FI0050S", "Station name": "Hyytiälä", "Station GAW-ID": "HYY", "Station state/province": "Pirka", "Station land use": "Forest", "Station setting": "Rural", "Station GAW type": "R", "Station WMO region": "6", "Station latitude": "61.85", "Station longitude": "24.283333", "Station altitude": "181.0 m", "Measurement latitude": "61.61", "Measurement longitude": "24.17", "Measurement altitude": "181.0 m", "Measurement height": "4.0 m", "Regime": "IMG", "Matrix": "instrument", "Laboratory code": "FI03L", "Instrument type": "filter_absorption_photometer", "Instrument name": "Magee_AE31", "Instrument manufacturer": "Magee", "Instrument model": "AE31", "Instrument serial number": "496", "Method ref": "FI03L_aeth_control", "Standard method": "SOP=GAW227", "Inlet type": "Impactor--direct", "Inlet description": "PM10 at ambient humidity inlet, Digitel, flow 30 l/min", "Humidity/temperature control": "Nafion dryer", "Humidity/temperature control description": "air dried from ambient with nafion drier", "Volume std. temperature": "293.15 K", "Volume std. pressure": "1013.25 hPa", "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": "FI03L, University of Helsinki, UHEL, Institute for Atmospheric and Earth System Research (INAR), PO BOX 64, , FI-00014, University of Helsinki, Finland", "Framework acronym": "ACTRIS, GAW-WDCA", "Framework name": "European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols", "Framework description": "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.", "Framework contact name": "Cathrine Lund Myhre, Markus Fiebig", "Framework contact email": "clm@nilu.no, Markus.Fiebig@nilu.no", "Originator": "Luoma, Krista, krista.q.luoma@helsinki.fi, University of Helsinki, UHEL, \"Division of Atmospheric Sciences, Department of Physics\", PO BOX 64, , FI-00014, University of Helsinki, Finland", "Submitter": "Luoma, Krista, krista.q.luoma@helsinki.fi, University of Helsinki, UHEL, \"Division of Atmospheric Sciences, Department of Physics\", PO BOX 64, , FI-00014, University of Helsinki, Finland", "Acknowledgement": "Request acknowledgement details from data originator", "Comment": "calibration factor / mean ratio=1.09; sample_spot_diameter = 8.3 ± 0.1 mm" } Ground based in situ observations of filter_absorption_photometer at Hyytiälä (FI0050R). 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: Request acknowledgement details from data originator Markku Kulmala, Tuukka Petaja, Aki Virkkula, Krista Luoma FI03L, University of Helsinki, UHEL, Institute for Atmospheric and Earth System Research (INAR), PO BOX 64, FI-00014, University of Helsinki, Finland , tuukka.petaja@helsinki.fi, aki.virkkula@helsinki.fi, krista.q.luoma@helsinki.fi ebas.nilu.no WWW:LINK web browser information pointOfContact GAW-WDCA ACTRIS FI0050R Hyytiälä theme ACTRIS, GAW-WDCA project NILU - Norwegian Institute for Air Research, ATMOS, EBAS dataCenter status_flag relative_humidity status_flag status_flag time time theme CF-1.7, ACDD-1.3 https://creativecommons.org/licenses/by/4.0/ ACTRIS, GAW-WDCA largerWorkCitation project eng climatologyMeteorologyAtmosphere 1 24.17 24.17 61.61 61.61 seconds 2017-01-01T00:30:00Z 2017-12-31T23:30:00Z 181.0 181.0 time_bnds double time bounds for measurement metadata_time_bnds double time bounds for ebas metadata intervals pressure double pressure_qc int (status_flag) pressure_ebasmetadata String ebas metadata for different time intervals; json encoded relative_humidity double (relative_humidity) relative_humidity_qc int (status_flag) relative_humidity_ebasmetadata String ebas metadata for different time intervals; json encoded temperature double temperature_qc int (status_flag) temperature_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. (2026-05-18T07:28:35.068Z)