mon océan & moi

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)

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)

Coccolithophore  (Photo : Sophie Marro)

Dinoflagellate Ceratium fusus (Photo : Sophie Marro)

Ciliate (Photo : Fabien Lombard)

Jellyfish Rhizostoma pulmo  (Photo : Fabien Lombard)

Dinoflagellate Ceratium macroceros var macroceros (Photo : Sophie Marro)

Stickers & Goodies

Siphonophores (Photo : Fabien Lombard)

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

Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)

Satellite observation (GEOS-12) of Hurricane Katrina in August 2005 in the Gulf of Mexico - Source : NASA-NOAA

World ocean currents map

Instrumented buoy (Photo : David Luquet)

Ctenaria Lampetia pancerina  (Photo : Fabien Lombard)

Vue sous-marine d'un groupe de mésocosmes montrant un plongeur récoltant les pièges à sediment (© Stareso)