satellite/9km/climatology/GMIS_S_PAR_MM eng File Identifier of the parent series series Global Marine Information System, Directorate D - Sustainable Resources, Joint Research Centre JRC-EMIS@ec.europa.eu pointOfContact 2013-10-16 ISO19115 2003/Cor.1:2006 http://www.opengis.net/def/crs/EPSG/0/4936 GMIS - SeaWiFS Monthly climatology photosynthetically available radiation (9km) in E.m^-2.d^-1 2013-08-22 creation 2013-06-11T11:15:00 revision 2013-08-29 publication satellite/9km/climatology/GMIS_S_PAR_MM https://jeodpp.jrc.ec.europa.eu/ftp/public/JRC-OpenData/GMIS Photosynthetically Active Radiation (PAR in Einstein.m^-2.day^-1 at 9km resolution): PAR is defined as the quantum energy flux from the sun in the spectral range 400 to 700 nm, usable in the process of photosynthesis by phytoplankton, benthic algae and seagrass. Global Marine Information System, Directorate D - Sustainable Resources, Joint Research Centre JRC-EMIS@ec.europa.eu pointOfContact Melin, Frederic European Commission, Joint Research Centre (JRC) frederic.melin@ec.europa.eu author photosynthetically available radiation climatology ocean color satellite observations marine environment coastal environment sea water protection marine monitoring GIS digital format climate change Environmental monitoring facilities Oceanographic geographical features Protected sites GEMET - INSPIRE themes, version 1.0 2008-06-01 publication environmental data GEMET - Concepts, version 2.4 2010-01-13 publication HYDROSPHERE (freshwater, marine water, waters) GEMET - Groups, version 2.4 2010-01-13 publication NATURAL ENVIRONMENT, ANTHROPIC ENVIRONMENT GEMET - Supergroups, version 2.4 2010-01-13 publication water GEMET - Themes, version 2.4 2010-01-13 publication OCEANS GEOSS - Earth Observation Vocabulary, version 1.0 2011-05-01 publication no conditions apply otherRestrictions no limitations 9 eng oceans environment -180.0 180.0 -90.0 90.0 1997-09-01 2010-12-31 https://jeodpp.jrc.ec.europa.eu/ftp/public/JRC-OpenData/GMIS/ Global Marine Information System WWW:LINK The Global Marine Information System (GMIS) provides information on marine ecosystems and coastal state, using biological and physical variables generated by satellite remote sensing. GMIS allows visualisation and download of Remote Sensing Ocean color data and derived products hosted at the Directorate D - Sustainable Resources. information https://jeodpp.jrc.ec.europa.eu/ftp/public/JRC-OpenData/GMIS/satellite/9km/climatology/ GMIS - Download access (GMIS_S_PAR) WWW:DOWNLOAD Direct NetCDF download download series COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 publication See the referenced specification false General information: Monthly climatology photosynthetically available radiation in E.m^-2.d^-1 (mol photons per square meter and per day) derived from the SeaWiFS sensor. Processing information: PAR data is reprocessed using the NASA SeaDAS 6.4 software (Frouin et al., 2003). Description of observation methods/instruments: The approach is described by Frouin et al. (2003).The content of the atmosphere in terms of aerosols and clouds is inferred from the spectrum of top-of-atmosphere radiance collected by the sensor in space. In turn, the downwelling irradiance reaching the surface of the ocean is computed using plane parallel theory. Eventually, by integration spectrally and over time, PAR is expressed as a daily value. Quality/Accuracy/Calibration information: The approach and results are described by Frouin et al. (2003). PAR represents the radiation in the spectral domain of relevance for photosynthesis (400-700 nm), and is used in model of primary production. References: Frouin, R., Franz, B.A., Werdell, P.J.: The SeaWiFS PAR product. In "Algorithm updates for the fourth SeaWiFS data reprocessing", S.B. Hooker and E.R. Firestone (Eds.) NASA/ NASA Technical Memorandum, 2003-206892, 22: 46-50.