Abstract
The collection of vertical data profiles of the ocean from a moving vessel has been achieved through the use of a computer controlled winch and davit. The winch deploys a free fall fish that can be instrumented with a variety of sensors. To date, both sound velocity (SV) and CTD sensors have been installed and tested. The SV data has been used for correcting multi-beam soundings in hydrographic surveys. The CTD data has been collected for use by physical oceanographers. A system capable of profiling down to 100 meters at speeds to 12 knots has been operating since June, 1996. The current concept can be projected to reach a depth of 800 meters and, with the aid of a line puller, attain 1200 meters. The MVP will be used by oceanographers to collect physical, biological and chemical oceanographic data without stopping the vessel. It will continue to be used by hydrographers conducting multibeam surveys.
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