Animation of the biosphere obtained from the ocean color sensor SeaWiFS
Dinoflagellate Ceratium macroceros var macroceros (Photo : Sophie Marro)
Crab Zoea larva (Photo : Fabien Lombard)
Diatom species Odontella mobiliensis(Photo : Sophie Marro)
Dinoflagellate Ceratium candelabrum var depressum (Photo : Sophie Marro)
Dinoflagellés Ceratium massiliense var protuberans (Photo : Sophie Marro)
Average chlorophyll concentration in the surface ocean (from mi-September 1997 to August 2007) from the ocean color sensor SeaWiFS (NASA). Subtropical gyres, in the center of the oceanic basins, are characterized by very low concentrations of chlorophyll a (dark blue) - Source : NASA's Earth Observatory (http:/earthobservatory.nasa.gov)
Ocean color satellites travel around the Earth at an altitude of about 700 to 800 km.
