OPeNDAP Dataset Query Form

OPeNDAP Dataset Access Form

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Global Attributes:	Conventions: CF-1.7 Metadata_Conventions: Unidata Dataset Discovery v1.0 cdm_data_type: Grid comment: See summary attribute creation_date: 20260831T044756Z creator_email: help@esa-oceancolour-cci.org creator_name: Plymouth Marine Laboratory creator_url: http://esa-oceancolour-cci.org date_created: 20260831T044756Z geospatial_lat_max: 90.0 geospatial_lat_min: -90.0 geospatial_lat_resolution: 0.0104166666666666666 geospatial_lat_units: decimal degrees north geospatial_lon_max: 180.0 geospatial_lon_min: -180.0 geospatial_lon_resolution: 0.0104166666666666666 geospatial_lon_units: decimal degrees east geospatial_vertical_max: 0.0 geospatial_vertical_min: 0.0 git_commit_hash: 29dcc3ad345b784826831e344010dcf1b0aa844d history: Mon Aug 31 06:03:47 2026: ncks -x -v crs standardised_geo/ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20260819-fv6.0_1km.nc ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20260819-fv6.0_1km.nc Source data were: NASA OBPG SeaWiFS level1 R2018.0 LAC and GAC [A/C via l2gen], NASA OBPG VIIRS L1 R2018.0 [A/C via polymer], NASA OBPG MODIS Aqua L1 R2018.0 (A/C via polymer), ESA MERIS L1B (3rd reprocessing inc OCL correction) [Polymer v4.12] and OLCI L1B [Polymer v4.12]; Derived products were mainly produced with functions validated from the current NASA SeaDAS release and some custom implementations. Uncertainty generation determined by the fuzzy classifier scheme of Tim Moore (2009) as updated by Jackson et al. (2017) and Jackson et al. (in prep). id: ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20260819-fv6.0_1km.nc institution: Plymouth Marine Laboratory keywords: satellite,observation,ocean,ocean colour keywords_vocabulary: none license: 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/ naming_authority: uk.ac.pml number_of_bands_used_to_classify: 4 number_of_optical_water_types: 14 platform: Orbview-2,Aqua,Envisat,Suomi-NPP, Sentinel-3a, Sentinel-3b processing_level: Level-3 product_version: 6.0_1km project: Climate Change Initiative - European Space Agency, the UK Earth Observation Climate Information Service, and Copernicus Climate Change Service references: https://climate.esa.int/en/projects/ocean-colour/, https://eocis.org/, https://climate.copernicus.eu/ sensor: SeaWiFS,MODIS,MERIS,VIIRS,OLCI sensors_present: OLCIa OLCIb source: NASA SeaWiFS L1A and L2 R2018.0 LAC and GAC, MODIS-Aqua L1A and L2 R2018.0, MERIS L1B 3rd reprocessing inc OCL corrections, NASA VIIRS L1A and L2 R2018.0, OLCI L1B spatial_resolution: 1km nominal at equator standard_name_vocabulary: NetCDF Climate and Forecast (CF) Metadata Conventions Version 1.7 summary: Data products generated by the Ocean Colour component of the European Space Agency Climate Change Initiative project. These files are daily 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). time_coverage_duration: P1D time_coverage_end: 202608192359Z time_coverage_resolution: P1D time_coverage_start: 202608190000Z title: ESA CCI, EOCIS Ocean Colour Product, and Copernicus Climate Change Service tracking_id: 095680be-6a4d-444b-85a9-49582d85303e NCO: netCDF Operators version 4.7.5 (Homepage = http://nco.sf.net, Code = http://github.com/nco/nco)

Variables:	lat: Array of 64 bit Reals [lat = 0..17279] lat: units: degrees_north long_name: latitude standard_name: latitude valid_min: -89.99479166666666 valid_max: 89.99479166666667 axis: Y _ChunkSizes: 270
	lon: Array of 64 bit Reals [lon = 0..34559] lon: units: degrees_east long_name: longitude standard_name: longitude valid_min: -179.99479166666666 valid_max: 179.99479166666663 axis: X _ChunkSizes: 270
	crs: 32 bit Integer crs grid_mapping_name: latitude_longitude
	Rrs_412: Grid time: lat: lon: _FillValue: 9.96921E36 ancillary_variables: Rrs_412_rmsd Rrs_412_bias long_name: Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 412 nm. parameter_vocab_uri: http://vocab.ndg.nerc.ac.uk/term/P071/19/CFV13N26 standard_name: surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air units: sr-1 units_nonstandard: sr^-1 wavelength: 412 _ChunkSizes: 1, 270, 270
	Rrs_443: Grid time: lat: lon: _FillValue: 9.96921E36 ancillary_variables: Rrs_443_rmsd Rrs_443_bias long_name: Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 443 nm. parameter_vocab_uri: http://vocab.ndg.nerc.ac.uk/term/P071/19/CFV13N26 standard_name: surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air units: sr-1 units_nonstandard: sr^-1 wavelength: 443 _ChunkSizes: 1, 270, 270
	Rrs_490: Grid time: lat: lon: _FillValue: 9.96921E36 ancillary_variables: Rrs_490_rmsd Rrs_490_bias long_name: Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 490 nm. parameter_vocab_uri: http://vocab.ndg.nerc.ac.uk/term/P071/19/CFV13N26 standard_name: surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air units: sr-1 units_nonstandard: sr^-1 wavelength: 490 _ChunkSizes: 1, 270, 270
	Rrs_510: Grid time: lat: lon: _FillValue: 9.96921E36 ancillary_variables: Rrs_510_rmsd Rrs_510_bias long_name: Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 510 nm. parameter_vocab_uri: http://vocab.ndg.nerc.ac.uk/term/P071/19/CFV13N26 standard_name: surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air units: sr-1 units_nonstandard: sr^-1 wavelength: 510 _ChunkSizes: 1, 270, 270
	Rrs_560: Grid time: lat: lon: _FillValue: 9.96921E36 ancillary_variables: Rrs_560_rmsd Rrs_560_bias long_name: Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 560 nm. parameter_vocab_uri: http://vocab.ndg.nerc.ac.uk/term/P071/19/CFV13N26 standard_name: surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air units: sr-1 units_nonstandard: sr^-1 wavelength: 560 _ChunkSizes: 1, 270, 270
	Rrs_665: Grid time: lat: lon: _FillValue: 9.96921E36 ancillary_variables: Rrs_665_rmsd Rrs_665_bias long_name: Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 665 nm. parameter_vocab_uri: http://vocab.ndg.nerc.ac.uk/term/P071/19/CFV13N26 standard_name: surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air units: sr-1 units_nonstandard: sr^-1 wavelength: 665 _ChunkSizes: 1, 270, 270
	chlor_a: Grid time: lat: lon: _FillValue: 9.96921E36 ancillary_variables: chlor_a_log10_rmsd chlor_a_log10_bias long_name: 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 parameter_vocab_uri: http://vocab.ndg.nerc.ac.uk/term/P011/current/CHLTVOLU standard_name: mass_concentration_of_chlorophyll_a_in_sea_water units: milligram m-3 units_nonstandard: mg m^-3 _ChunkSizes: 1, 270, 270
	time: Array of 32 bit Integers [time = 0..10551] time: units: days since 1970-01-01 00:00:00 axis: T standard_name: time _ChunkSizes: 1

For questions or comments about this dataset, contact the administrator of this server [Remote Sensing Group] at: rsgweb@pml.ac.uk

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DDS:

Dataset {
    Float64 lat[lat = 17280];
    Float64 lon[lon = 34560];
    Int32 crs;
    Grid {
     ARRAY:
        Float32 Rrs_412[time = 10552][lat = 17280][lon = 34560];
     MAPS:
        Int32 time[time = 10552];
        Float64 lat[lat = 17280];
        Float64 lon[lon = 34560];
    } Rrs_412;
    Grid {
     ARRAY:
        Float32 Rrs_443[time = 10552][lat = 17280][lon = 34560];
     MAPS:
        Int32 time[time = 10552];
        Float64 lat[lat = 17280];
        Float64 lon[lon = 34560];
    } Rrs_443;
    Grid {
     ARRAY:
        Float32 Rrs_490[time = 10552][lat = 17280][lon = 34560];
     MAPS:
        Int32 time[time = 10552];
        Float64 lat[lat = 17280];
        Float64 lon[lon = 34560];
    } Rrs_490;
    Grid {
     ARRAY:
        Float32 Rrs_510[time = 10552][lat = 17280][lon = 34560];
     MAPS:
        Int32 time[time = 10552];
        Float64 lat[lat = 17280];
        Float64 lon[lon = 34560];
    } Rrs_510;
    Grid {
     ARRAY:
        Float32 Rrs_560[time = 10552][lat = 17280][lon = 34560];
     MAPS:
        Int32 time[time = 10552];
        Float64 lat[lat = 17280];
        Float64 lon[lon = 34560];
    } Rrs_560;
    Grid {
     ARRAY:
        Float32 Rrs_665[time = 10552][lat = 17280][lon = 34560];
     MAPS:
        Int32 time[time = 10552];
        Float64 lat[lat = 17280];
        Float64 lon[lon = 34560];
    } Rrs_665;
    Grid {
     ARRAY:
        Float32 chlor_a[time = 10552][lat = 17280][lon = 34560];
     MAPS:
        Int32 time[time = 10552];
        Float64 lat[lat = 17280];
        Float64 lon[lon = 34560];
    } chlor_a;
    Int32 time[time = 10552];
} CCI_ALL-v6.0-1km-DAILY;

OPeNDAP Dataset Access Form

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