INSTRUMENTATION AND DATA ACQUISITION SYSTEM FOR MEASURING BRINE PLUMES IN COASTAL WATERS.
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The authors describe instrumentation which has been developed to measure the brine plumes resulting from the discharge of brine from a submerged multiport diffuser in coastal waters less than 30 m deep. An instrument for measuring conductivity, temperature, depth, and dissolved oxygen (CTD/DO) is housed in a sled and towed on the sea floor. The instrument is interfaced to an automatic data acquisition system for recording the CTD/DO data and the ship's location. The system is relatively inexpensive and sufficiently accurate for evaluating the plume boundary to within 1 part per thousand above the ambient salinity.