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Examples of Floats and Drifters in Use at WHOI

RAFOS Float

RAFOS Float

Drifting with currents, gyres, and currents to track the motion of water in the ocean.

Source: Ocean Instruments
ALACE, PALACE and SOLO Floats

ALACE, PALACE and SOLO Floats

Drifting with currents and profiling the upper ocean.

Source: Ocean Instruments
Polar Profiling Floats

Polar Profiling Floats

Polar Profiling Floats drift nose-up at various depths through the Arctic Ocean while measuring water temperature and salinity. The floats are programmed to rise to the surface periodically and send data via satellite antenna to scientists on shore.

Argo Float Program

The Argo Float Program

Argo is a global array of 3,000 free-drifting profiling floats that measures the temperature and salinity of the upper 2000 m of the ocean. This allows, for the first time, continuous monitoring of the temperature, salinity, and velocity of the upper ocean, with all data being relayed and made publicly available within hours after collection.