Alaska to Greenland via the Northwest Passage

Coast Guard Cutter Healy conducts Arctic patrol in support of the Office of Naval Research
By Lt. Patrick Debroisse

In August and September 2021, the U.S. Coast Guard Cutter Healy transited through the Northwest Passage, from Alaska to Greenland. This voyage provided members of the University of New Hampshire’s Center for Coastal and Ocean Mapping/Joint Hydrographic Center (CCOM/JHC) the opportunity to collect data, helping to fill gaps in current hydrographic coverage in the passage and in the U.S. Exclusive Economic Zone (EEZ). Data in the Arctic where sea ice impedes ships is sparse. This is concerning as the Arctic nations, especially the United States, Canada, and Greenland evaluate both extended continental shelf claims and the potential for shipping routes through the Northwest Passage.

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Joint Canada-U.S. mapping cruise in the Atlantic winding up

RV Atlantis
UNOLS Research Vessel Atlantis, operated by the Woods Hole Oceanographic Institution, transits to a joint Canada-U.S. survey location in the North Atlantic.

The U.S. and Canada have been surveying in the northern Atlantic Ocean this summer, gathering data to support both countries’ territorial claims under the United Nations Convention on the Law of the Sea (UNCLOS). The survey project started on August 15, and the ship is scheduled to return to Woods Hole, Massachusetts, on September 10.

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