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Continued Benthic-Habitat Mapping and Submersible Dives in the Channel Islands
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End of the Dive:
Guy Cochrane pilots the Deepworker submersible back to NOAA's R/V MacArthur
at the end of a dive.
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Guy Cochrane, Fred Payne, and Mike Boyle participated in the California Channel Islands National Marine
Sanctuary leg of the 2000 Sustainable Seas Expedition (SSE) in June and July (USGS field op M-1-00-SC).
This activity is the second year in which they have participated in a SSE to a National Marine Sanctuary.
This expedition was the latest in a series of field activities in the Channel Islands (see previous Sound
Waves articles below). Guy piloted the Deepworker
submersible for video-groundtruthing of sidescan-sonar data. Fred and Mike operated the Klein 2000 sidescan
system at night and collected approximately 100 km2 of new data in the sanctuary. This year's new
submersible was rated to dive to a depth of 2,000 ft, and Sylvia Earle made one 2,000-ft dive. A typical
dive began in about 500 ft of water and proceeded up slope or along an isobath. More information about
the project is available on the Nearshore Benthic Habitat Project
web pages.
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September 2000
in this issue:
cover story:
Recovery of Confederate Submarine H.L. Hunley
Crater Lake Mapping
Lake Erie Nearshore Habitat
Channel Islands
Pinnacles Area—Gulf of Mexico
Gulf of Maine
Seafloor Mapping Seminar
Ocean Science Forums
Blacks in Government
SF Bay Oil-Spill Hazards
Gas Hydrates
Presentations
Arrivals
Visitors
September Publications List
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previous story
U. S. Department of the Interior | U.S. Geological Survey