Dear Mercy Mwaniki, thanks for your suggestion. However, I want satellite ocean color products such as Sentinel3, OCM2, Gilli, etc. In addition, I need satellite data with
I will second Jae-Hyun's recommendation, Ocean Color data are available for free at https://oceancolor.gsfc.nasa.gov/ including MODIS-Aqua (global), MODIS-Terra (global), VIIRS (global), SeaWiFS (global, for data before 2010), MERIS (global), OLCI (global), OCTS (global), GOCI (Geostationary data over Korea), HICO (regional, higher spectral resolution from International Space Station), as well as CZCS (if you want to go back to global coverage from 1978). Most of these sensors have at least 1 km spatial resolution, some better. Cheers!