What lies beneath: Mapping [what's new] Arctic Sea Floor

The u.s. Coast Guard cutter Healy Arctic view.

7. August Survey Coast Office in cooperation with the NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION's NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION-University of New Hampshire Joint hydrographic Center and several other federal and Canadian partners, set sail on the fifth Expedition to the Arctic map of North America extended continental shelf.

What is the extended continental shelf and why we need to connect it?No continental shelf is the continent gently kaltevassa underwater fringe; the sharp drop in the number of ends.In accordance with international law, and within the limits of the continental shelf of the country to extend the 200-nautical-mile zone off the coast of Cape Verde. If certain geological criteria are met, the shelf can be extended even further out and how much other out in the area because of the coastal Nations are the rights natural resources of the sea and the Sea shelf in this region.

The crew from Healy lower echo might run the risk of equipment during the last summer Chukchi Sea Expedition.

In 2007, the NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION-led mapping Expedition of about 600 nautical miles north of Alaska has shown evidence that the North American Continental slope foot was much farther out than initially thought. So this summer, 41 days of operation to build off the 2007 research and data collection to the full extent of a better understanding of the continental shelf.

Map the sea floor to the depth of a data collection multibeam researchers on the u.s. Coast Guard cutter Healywill.Also clears the path through the Healy remains for the Canadian Coast Guard Ship Louis s. St-Laurent, which is fully equipped for the purpose of determining the thickness of the seismic data collection in sediment.

Its primary purpose, in order to determine the full extent of the continental shelf, in order to supplement the information collected during the Expedition to help researchers learn more about the sea-floor of the processes, ocean circulation, sediments, and air navigation services in the security ecosystems.

In addition, the Expedition is broader training component.Join Healy is NOAA Teacher at Sea Christine Hedge, teacher-middle school Carmel, Carmel Indiana. While on board, hedge affect researchers, for more information about hydrography of ecosystems and resources, which is located in North America continue to continental shelf. the knowledge and experience, he or she will be transported back to the classroom on.

Arctic research is part of a multiannual, agencies, the fishing effort of the United States Extended Continental Shelf project, led by the Department of State; co-chairs with vice-Department of Interior and the NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION of the operation will continue to be carried out by. 2009 started last year, the US-Canada partnership, and plans are to continue joint operations by 2010.

In this figure, explains how the country can set its continental shelf, land can use either the constraint to specify its territorial waters on the line of the outer limits: 350 nautical miles measured from the baseline of the ship while the ship or 100 nautical miles is in the depth meter myyntiluku pattern (isobaatin).(Exclusive economic zone: Exclusive economic zone extending 200 nautical miles offshore coastal area.)