Dinoflagellate Ceratium extensum(Photo : Sophie Marro)
The research vessel "James COOK"
Dinoflagellate Ceratium falcatum (Photo : Sophie Marro)
Instrumented buoy (Photo : David Luquet)
Instrumented buoy (Photo : David Luquet)
Surface chlorophyll a concentration in the global ocean.
Amphipode crustacean (Photo : Fabien Lombard)
Phytoplankton bloom observed in the Barents Sea (North of Norway) in August 2010 by the ocean color sensor MODIS onboard NASA satellite Aqua. Changes in ocean color result from modifications in the phytoplankton composition and concentration. The green colors are likely associated with the presence of diatoms. The shades of light blue result from the occurrence of coccolithophores, phytoplankton organisms that strongly reflect light due to their chalky shells - 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.