mon océan & moi

Villefranche-sur-Mer in stormy weather, winter 2011 -  Photo : J.-M. Grisoni

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)

Ctenaria Eucharis multicornis  (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)

Surface chlorophyll a concentration in the Mediterranean Sea.

Villefranche-sur-Mer in stormy weather, winter 2011 - Photo : J.-M. Grisoni

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)

Jellyfish Pelagia noctiluca  (Photo : Fabien Lombard)

Profiling float (Photo : David Luquet)

Siphonophores Forskalia formosa (Photo : Fabien Lombard)

Ctenaria Beroe ovata  (Photo : Fabien Lombard)

Préparation et mise à l'eau des mésocosmes sur le ponton de l'observatoire océanologique de Villefranche lors de l'expérience menée en rade de Villefranche en février 2013 (© L. Maugendre, LOV)

Underwater glider (Photo : David Luquet)