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Final project instruction for 2015EX-15-04 Leg 4 : CAPSTONE NWHI Exploration Leg IV
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Final project instruction for 2015EX-15-04 Leg 4 :   CAPSTONE NWHI Exploration Leg IV
  • Alternative Title:
    Cruise plan EX1504L4
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  • Description:
    "This document contains project instructions for EX-15-04 Leg IV, the last ROV cruise of the 2015 CAPSTONE effort. Operations for this cruise will include ROV, mapping, CTD rosette and telepresence-based remote participation. The expedition will be staged in and out of Honolulu, HI with operations beginning on September 7 and concluding on September 30. Operations will use the ship’s deep water mapping systems (Kongsberg EM302 multibeam sonar, EK60 split-beam fisheries sonar, and Knudsen 3260 chirp sub-bottom profiler sonar), NOAA’s two-body 6000 m rated remotely operated vehicle (ROVs Deep Discoverer and Seirios), CTD rosette, and the ship’s high-bandwidth satellite connection for real-time ship to shore communications. ROV dives will mostly be conducted during the day, while CTD casts, and multibeam, singlebeam, and sub-bottom acoustic mapping will occur when the ROV is on deck. Exploration operations for Leg II will focus on areas around the North West Hawaiian Islands. Dives are planned in deep-water offshore of Oahu, in and just outside of Papahānaumokuākea Marine National Monument (PMNM) and Johnston Atoll in the Pacific Remote Islands National Marine Monument. ROV dives will include high-resolution visual surveys and limited rock and biologic specimen sampling. ROV dives during this cruise will offer the first-ever look at deep seafloor habitats deeper than 400m in PRIMNM. This expedition will help establish a baseline of information in the region to catalyze further exploration, research and management activities"--Overview.
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