OLCI Level 2 CHL Concentration - Sentinel-3A

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Provided by European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT)

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Dataset information

Country of origin
Updated
Created
Available languages
English
Keywords
Ocean
Quality scoring
215

Dataset description

This Ocean Colour product represents the algal pigment (Chlorophyll a) concentration in clear open waters, and it is defined by the "OC4Me" Maximum Band Ratio (MBR) semi-analytical algorithm. The product is derived from S3A OLCI L2 NRT water-leaving reflectances (calculated from the Baseline Atmospheric Correction). A maximum band ratio approach is used for reflectances at 443, 490 and 510 nm, over that 560 nm (O3 to O6). It is expressed in Units of mg/m3 as: log10 [Chl]= ∑4 x=0 =(Ax * (log10(Rij))x) which is the ratio of reflectance of band i, among 443, 490 and 510 nm, over that of band j at 560 nm. The following flags were applied: INVALID, LAND, CLOUD, CLOUD_AMBIGUOUS, CLOUD_MARGIN, SNOW_ICE, SUSPECT, HISOLZEN, SATURATED, HIGHGLINT, WHITECAPS, AC_FAIL, OC4ME_FAIL, ANNOT_TAU06, RWNEG_O2, RWNEG_O3, RWNEG_O4, RWNEG_O5, RWNEG_O6, RWNEG_O7 and RWNEG_O8. Full details of the chl_oc4me algorithm can be found in the case 1 resource link. Sentinel-3 is part of a series of Sentinel satellites, under the umbrella of the EU Copernicus programme. This product can be downloaded as numerical data in EUMETView NG, where it is provided through a Web Coverage Service (WCS).
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