Deck Watch talks with Lt. j.g. John Sloan, operations officer aboard the Coast Guard Cutter SPAR, about cross-training with the National Oceanographic and Atmospheric Administration, hydro-graphic mapping and how the Coast Guard uses this technology in the Alaskan waterways, Sept. 20, 2013. Deck Watch is a weekly five-minute radio program covering Coast Guard news and operations throughout Alaska. U.S. Coast Guard audio by 17th District Public Affairs.
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