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EX1204: Northeastern Canyons and Continental Margins Exploration on NOAA Ship Okeanos Explorer between 20120529 and 20120613

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: December 19, 2025 | Last Modified: 2012-05-01T00:00:00.000+00:00
During the Okeanos Explorer (EX) mission EX1204, the vessel will sail from Norfolk, VA, along the continental shelf break of the U.S. East Coast from Virginia to Rhode Island, to the ship’s home port of Davisville, RI. The goal of the mission is to explore northeastern canyons and continental margins using the ship’s Kongsberg EM302 multibeam sonar, Simrad EK60, and Knudsen sub-bottom profiler. CTD casts are probable around different locations around the axis of the canyons with niskin bottle firings for water sampling, depending upon staff availability. XBT casts will be fired every 4 hours for system calibration checks. Multibeam data collected in a sloped but featureless area in the vicinity of McMaster canyon will be used in comparison with data in this same area recorded by the NOAA Ship Hassler and the NOAA Ship Bigelow.

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OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY OCEANS > OCEAN ACOUSTICS > ACOUSTIC SCATTERING MBES > Multibeam Mapping System CTD > Conductivity, Temperature, Depth XBT > Expendable Bathythermograph ECHO SOUNDERS expedition exploration explorer marine education noaa ocean ocean discovery ocean education ocean exploration ocean exploration and research OER ocean literacy ocean research science scientific mission scientific research sea stewardship systematic exploration technology transformational research undersea underwater okeanos explorer okeanos scientific computing system SCS noaa fleet R337 multibeam multibeam sonar telepresence sub-bottom profile mapping survey multibeam backscatter water column backscatter singlebeam sonar single beam sonar single-beam sonar deep-sea exploration high-definition underwater video underwater video exploration vessel multibeam multibeam sonar sub-bottom profile mapping survey exclusive economic zone EEZ Atlantic canyon Northeast Fisheries Science Center Woods Hole Oceanographic Institute WHOI Virginia Sea Grant Mid Atlantic Research Council on the Ocean MARCO Ocean Exploration Advisory Working Group OEAWG National Marine Fisheries Service shelf break coral preservation deep sea corals deep water corals Fisheries management Canyon complex NOAA Ship Hassler NOAA Ship Bigelow multibeam backscatter water column backscatter offshore management ACUMEN Norfolk US East Coast U.S. East Coast Virginia Rhode Island Atlantic Basin Norfolk Canyon Washington Canyon Accomac Canyon Baltimore Canyon Hudson Canyon Lydonia Canyon Gilbert Canyon Oceanographer Canyon Hydrographer Canyon Veatch Canyon Atlantis Canyon Alvin Canyon Uchupi Canyon Babylon Canyon Jones Canyon Hudson Canyon Carteret Canyon Davisville

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