Monthly mean sea surface Chlorophyll-a concentration (in mg.m^-3 (log10) at 4km resolution - Satellite remote sensing Ocean color data): Chlorophyll is a photosynthetic pigment commonly present in all phytoplankton species. It is used as a proxy for phytoplankton biomass. Chlorophyll concentration is a standard product from satellite-based optical sensors, usually retrieved from empirical algorithms using reflectance ratios at two or more wavebands.
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## [1] "West-Longitude: -1.6"
## [1] "South-Latitude: 37.2"
## [1] "East-Longitude: 2.5"
## [1] "North-Latitude: 38.9"