uk.ac.pml:ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1M_MONTHLY_4km_GEO_PML_OCx_QAA-202511-fv6.0_1km.nc eng UTF8 dataset Plymouth Marine Laboratory Plymouth Marine Laboratory help@esa-oceancolour-cci.org http://esa-oceancolour-cci.org WWW:LINK web browser information pointOfContact 2026-09-01 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) 3 column 34560 0.010416666666666664 row 17280 0.010416666666666666 temporal 340 2628955.0 area ESA CCI, EOCIS Ocean Colour Product, and Copernicus Climate Change Service ThuTDecT18T05:08:11T2025 creation uk.ac.pml Plymouth Marine Laboratory Plymouth Marine Laboratory help@esa-oceancolour-cci.org http://esa-oceancolour-cci.org WWW:LINK web browser information originator See summary attribute Data products generated by the Ocean Colour component of the European Space Agency Climate Change Initiative project. These files are monthly composites of merged sensor (MERIS, MODIS Aqua, SeaWiFS LAC & GAC, VIIRS, OLCI) products. MODIS Aqua and SeaWiFS were band-shifted and bias-corrected to MERIS bands and values using a temporally and spatially varying scheme based on the overlap years of 2003-2007. VIIRS was band-shifted and bias-corrected in a second stage against the MODIS Rrs that had already been corrected to MERIS levels, for the overlap period 2012-2013; and at the third stage OLCI was bias corrected against already corrected MODIS, for overlap period 2016-07-01 to 2019-06-30. VIIRS, MODIS, SeaWiFS and MERIS Rrs were derived from a combination of NASA's l2gen (for basic sensor geometry corrections, etc) and HYGEOS Polymer v4.12 (for atmospheric correction). OLCI Rrs were sourced at L1b (already geometrically corrected) and processed with polymer. The Rrs were binned to a sinusoidal 1km level-3 grid, and later to 1km geographic projection, by Brockmann Consult's SNAP. Derived products were generally computed with the standard algorithmsthrough SeaDAS. QAA IOPs were derived using the standard SeaDAS algorithm but with a modified backscattering table to match that used in the bandshifting. The final chlorophyll is a combination of OCI, OCI2, OC2 and OCx, depending on the water class memberships. Uncertainty estimates were added using the fuzzy water classifier and uncertainty estimation algorithm of Tim Moore as documented in Jackson et al (2017). Plymouth Marine Laboratory Plymouth Marine Laboratory help@esa-oceancolour-cci.org http://esa-oceancolour-cci.org WWW:LINK web browser information pointOfContact satellite observation ocean ocean colour theme none Climate Change Initiative - European Space Agency, the UK Earth Observation Climate Information Service, and Copernicus Climate Change Service project surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air mass_concentration_of_chlorophyll_a_in_sea_water latitude longitude time theme NetCDF Climate and Forecast (CF) Metadata Conventions Version 1.7 ESA CCI, EOCIS, and C3S Data Policy: free and open access. When referencing, please use: Ocean Colour Climate Change Initiative dataset, Version 6.0, European Space Agency, available online at https://climate.esa.int/en/projects/ocean-colour/. We would also appreciate being notified of publications so that we can list them on the project website at https://climate.esa.int/en/projects/ocean-colour/, https://eocis.org/, https://climate.copernicus.eu/ Climate Change Initiative - European Space Agency, the UK Earth Observation Climate Information Service, and Copernicus Climate Change Service largerWorkCitation project Unidata Common Data Model Grid largerWorkCitation project eng climatologyMeteorologyAtmosphere 1 -179.99479 179.99479 -89.99479 89.99479 seconds 1997-09-04T00:00:00Z 2025-12-01T00:00:00Z 0.0 0.0 crs int Rrs_412 float Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 412 nm. (surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air) Rrs_443 float Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 443 nm. (surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air) Rrs_490 float Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 490 nm. (surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air) Rrs_510 float Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 510 nm. (surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air) Rrs_560 float Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 560 nm. (surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air) Rrs_665 float Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 665 nm. (surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air) chlor_a float Chlorophyll-a concentration in seawater (not log-transformed), generated by as a blended combination of OCI, OCI2, OC2 and OCx algorithms, depending on water class memberships (mass_concentration_of_chlorophyll_a_in_sea_water) lat double latitude (latitude) lon double longitude (longitude) time int (time) dataset Source data were: ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251101-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251102-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251103-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251104-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251105-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251106-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251107-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251108-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251109-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251110-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251111-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251112-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251113-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251114-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251115-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251116-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251117-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251118-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251119-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251120-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251121-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251122-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251123-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251124-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251125-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251126-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251127-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251128-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251129-fv6.0_1km.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20251130-fv6.0_1km.nc; netcdf_compositor_cci composites Rrs_412, Rrs_443, Rrs_490, Rrs_510, Rrs_560, Rrs_665, chlor_a with --mean, with --root-mean-square, and - with --total This record was translated from NcML using UnidataDD2MI.xsl Version 2.3.4. (2026-09-01T05:46:00.271Z)