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Coastwide Sardine Survey IV: CTD deployment

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Uploaded on Apr 24, 2007

A CTD is a device that measures the Conductivity, Temperature, and Depth of the water column. The CTD is lowered by a winch to 200 meters depth and sensors on the device that are linked to a computer on board create a profile of the water column. Water samples can be taken at different depths, triggered by the scientist on board.

http://swfsc.noaa.gov/multimedia.aspx

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