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Current Ocean Temperatures
June 24, 2007
Sea surface temperature (SST) is the water temperature at the surface. In practical terms, the exact meaning of "surface" will vary according to the measurement method used. A satellite infra-red radiometer indirectly measures the temperature of a very thin layer (about 10 micrometres thick) or skin of the ocean (leading to the phrase skin temperature) representing the top millimeter; a thermometer attached to a moored or drifting buoy in the ocean would measure the temperature as a specific depth (e.g. the top 1 meter below the sea surface); the measurements routinely made from ships are often from the engine water intakes and may be at various depths in the upper 20 m of the ocean.
