Quizz the ocean seasons

Large rosette sampler used in the "World Ocean Circulation Experiment". This rosette has 36 10-liter Niskin bottles, an acoustic pinger (lower left), an "LADCP" current profiler (yellow long tube at the center), a CTD (horizontal instrument at the bottom), and transmissometer (yellow short tube at the center). (Photo : L. Talley)

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)

Stickers & Goodies

PLAY ANIMATION

Illustration in synthesized images of the seasons of the ocean: a year from the Arctic - Animation Clement Fontana

Rosette used to collect seawater samples during a scientific cruise in the South Pacific Ocean. (Photo : Joséphine Ras)

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

Mollusk (Photo : Fabien Lombard)

Siphonophores (Photo : Fabien Lombard)

Instrumented buoy (Photo : Emilie Diamond)

PLAY VIDEO

Colony of dinoflagellates Ceratium hexacanthum. In the video, one can observe the movement of the flagella. (Video : Sophie Marro)

Gelatinous plankton Pelagia and Ctenophores (Photo : Fabien Lombard)

Vue sous-marine d'un groupe de mésocosmes montrant la structure de flottaison en surface (© Stareso)

Elephant seal equipped with a sensor

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)