mon océan & moi

Surface chlorophyll a concentration in the Mediterranean Sea.

Rosette used to collect seawater samples during a scientific cruise in the South Pacific Ocean. During the austral summer, the amount of chlorophyll a is so low that the water becomes deep blue, almost purple. (Photo : Joséphine Ras)

Trimaran of INSU

Phytoplankton bloom observed by the ocean color sensor MODIS onboard NASA satellite Terra in May 2010. The bloom spreads broadly in the North Atlantic from Iceland to the Bay of Biscay - Source : NASA's Earth Observatory (http:/earthobservatory.nasa.gov)

Instrumented buoy (Photo : Emilie Diamond)

Dinoflagellates Ceratium platycorne var platycorne (Photo : Sophie Marro)

Foraminifera Orbulina universa  and mollusk larva (Photo : Fabien Lombard)

Ocean color satellites travel around the Earth at an altitude of about 700 to 800 km.

Profiling float (Photo : David Luquet)

Prélèvements d'eau des mésocosmes pour analyses, lors de l'expérience menée en Corse en juin/juillet 2012 (© A. Ree, PML)

Krill (Photo : Fabien Lombard)

Les mésocosmes déployés dans la rade de Villefranche (© L. Maugendre, LOV)

Instrumented buoy (Photo : David Luquet)

Dinoflagellate Ceratium macroceros var macroceros (Photo : Sophie Marro)

Dinoflagellate Ceratium arietinum var arietinum (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)