Page 24: of Marine Technology Magazine (June 2012)
AUV Arctic Operations
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Pearl Harbor. Until HURL?s 2002 nd of the midget sub with the hole just as the Ward?s crew described, the Ward?s contribution of the rst shot and kill of the Paci c war could not be veri ed. For the remaining crew of the Ward, now in their eighties, this was a triumph. In fact, HURL made a documentary taking one of the remaining Ward crew, Will Lehrner, on the sub to see the Japanese midget submarine he helped sink so many years ago. The discovery of the midget submarine has been the subject of several full-length documentaries. HURL has worked with various NOAA of ces and partner agencies including the National Marine Sanctuaries Pro-gram and the National Park Service to record the midget sub?s condition, carry out corrosion testing, and documenting it with the intent of preserving this valu- able maritime heritage site for posterity. Kermadec Expedition HURL undertook the most ambitious cruise ever organized in its 30-year history in the Central and Southwest-ern Paci c region over ve months in 2005. This involved 58 scientists from four countries and 12 universities and research institutes. The 14,500 nm rout- ing of this expedition took the HURL program from Honolulu to American Samoa and from there proceeded to the Tonga-Kermadec arc on the way to New Zealand. The return trip passed through the U.S. Line Islands with dives in these remote island areas that have since be- come marine national monuments. In all, eight separate cruise legs covered 21 different study sites with 78 successful Pisces submersible and ROV dives com- pleted, along with over-the-side instru- ment deployments, mooring recoveries, and multibeam bathymetric surveys. This investigation of active volcanoes highlighted the hydrothermal systems of this arc that had really not been well studied. Many of the volcanoes had nev- er been visited by submersible before. Several were streaming carbon dioxide at an unprecedented rate. Much of this gas emission from deep-sea volcanoes had not been fully accounted for in cli-mate change models. LRT and technology development One of the interesting technologies that HURL has pioneered is the 50-foot launch, recovery and transport ve- Image Courtesy HURL June 2012MTR #5 (18-33).indd 24MTR #5 (18-33).indd 245/31/2012 9:55:10 AM5/31/2012 9:55:10 AM