Abstract
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.
Department
Center for Coastal and Ocean Mapping
Publication Date
5-2010
Volume
3
Journal Title
International Hydrographic Review
Pages
14-23
Publisher Place
Lemmers, Amsterdam, The Netherlands
Publisher
Geomatics Information & Trading Center - GITC
Document Type
Journal Article
Recommended Citation
Mayer, L.A., Armstrong, A.A., Calder, B.R. and Gardner, J.V., 2010, Seafloor mapping in the Arctic: support for a potential U.S. extended continental shelf, International Hydrographic Review, no. 3, pp. 14-23.