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AXCTD, Airborne CTD The AXCTD system allows profiles of oceanographic conditions to be collected from aircraft. Deployed probe assemblies descend via parachute to the sea surface. A float inflates on contact with water and after a short delay, a standard XCTD probe drops from the floating buoy. Data is transmitted from the probe to the buoy on a copper wire and from the buoy to the aircraft through a radio signal. An antenna, receiver, data acquisition unit, and optional personal computer on the aircraft complete the AXCTD system and allow recording and display of the transmitted profile data. AXCTD Specification Sheet  (74K)
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