US to map arctic seabed

Two arctic cruises by the US Coast Guard's Healy are scheduled to begin on Aug. 14 under direction of the US Department of State in collaboration with Canada to collect data about the continental shelf and Arctic Ocean basins.

Offshore staff

WASHINGTON, D.C. --Two arctic cruises by the US Coast Guard's Healy are scheduled to begin on Aug. 14 under direction of the US Department of State in collaboration with Canada to collect data about the continental shelf and Arctic Ocean basins.

The first cruise, scheduled to run through Sept. 15, will be out of Barrow, Alaska, and aims to create a 3D map of the arctic seabed in the Chukchi Cap. The second cruise, to begin on Sept. 16 also from Barrow, will continue seabed mapping and also create a path through the ice for Canada'sLouis S. St. Laurent to collect seismic reflection and refraction data to determine sediment thickness.

This will be the fourth summer that the US has collected data in the arctic in support of defining the limits of its extended continental shelf (the portion of the continental shelf beyond 200 nautical miles).

08/13/2008

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