Seafloor mapping in the Arctic: support for a potential U.S. extended continental shelf

For the United States, the greatest opportunity for an extended continental shelf under UNCLOS is in the ice-covered regions of the Arctic north of Alaska. Since 2003, CCOM/JHC has been using the icebreaker Healy equipped with a multibeam echosounder, chirp subbottom profiler, and dredges, to map an...

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Bibliographic Details
Main Authors: Mayer, Larry A., Armstrong, Andy, Calder, Brian R., Gardner, James V.
Format: Text
Language:unknown
Published: University of New Hampshire Scholars' Repository 2010
Subjects:
Law of the Sea
Arctic
Chukchi Borderland
Chukchi
Alaska
Online Access:https://scholars.unh.edu/ccom/82
https://scholars.unh.edu/cgi/viewcontent.cgi?article=1081&context=ccom
Description
Summary:For the United States, the greatest opportunity for an extended continental shelf under UNCLOS is in the ice-covered regions of the Arctic north of Alaska. Since 2003, CCOM/JHC has been using the icebreaker Healy equipped with a multibeam echosounder, chirp subbottom profiler, and dredges, to map and sample the region of Chukchi Borderland and Alpha-Mendeleev Ridge complex. These data have led to the discovery of several new features, have radically changed our view of the bathymetry and geologic history of the area, and may have important ramifications for the determination of the limits of a U.S. extended continental shelf under Article 76.

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