Argo is an international project and a major component of the oceans observing system. Approximately 3000 profiling floats will be deployed around the world. Once at sea, the float sinks to a preprogrammed target depth of 2000 meters for a preprogrammed period of time. It then floats to the surface, taking temperature and salinity values during its ascent at set depths. At the surface, the float drifts along for a day or two and transmits the data to a satellite run by Service Argos which then determines the position of the float. Service Argos sends the data to various data centers such as ISDM.
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