
Map of Antarctica (click to enlarge)
The 'Amundsen Sea' is an arm of the
Southern Ocean off
Marie Byrd Land in western
Antarctica. It is bounded by
Thurston Island to the east and
Cape Dart to the west. Named for the Norwegian polar explorer
Roald Amundsen by the Norwegian expedition of 1928-29, under Captain
Nils Larsen, while exploring this area in February, 1929.
The sea is mostly ice-covered, and the
Thwaites Ice Tongue protrudes into it. The ice-covered area of the sea, averaging about 3 km (2 miles) in thickness and roughly the size of the state of Texas, is called the Amundsen Sea
Embayment; it forms one of the three major ice drainage basins of the
West Antarctic Ice Sheet, the others being the
Ross Sea Embayment and the
Weddell Sea Embayment. In March of 2007, scientists studying the ASE through satellite and airborne surveys announced a significant thinning of the ASE, due to shifts in wind patterns that allow warmer waters to flow beneath the ice sheet.
References
★ Lubin, Dan, and Robert Massom. ''Polar Remote Sensing.'' New York, Springer, 2006.
★ Schnellnhuber, Hans Joachim, et al., eds. ''Avoiding Dangerous Climate Change.'' Cambridge, Cambridge University Press, 2006.
External Links
★
Airborne Geophysical Survey of the Amundsen Embayment
★
Subglacial Topography
★
Thinning ice