The AMUNDSEN SEA, an arm of the
Southern Ocean off
Marie Byrd Land in
The sea is mostly ice-covered, and the Thwaites Ice Tongue protrudes
into it. The ice sheet which drains into the
AMUNDSEN SEA EMBAYMENT
See also: Rossby wave § Oceanic waves Large B-22 iceberg
breaking off from
Thwaites Glacier and remnants of the B-21 iceberg
Pine Island Glacier
The ice sheet which drains into the
Some scientists have proposed that this region may be a "weak underbelly" of the West Antarctic Ice Sheet . The Pine Island and Thwaites Glaciers, which both flow into the Amundsen Sea, are two of Antarctica's largest five. Scientists have found that the flow of these glaciers has increased in recent years, if they were to melt completely global sea levels would rise by about 0.9–1.9 m (1–2 yards). Scientist have suggested that the loss of these glaciers would destabilise the entire West Antarctic ice sheet and possibly sections of the East Antarctic Ice Sheet .
A study in October 2004 suggested that because the ice in the
Measurements made by the
British Antarctic Survey in 2005 showed that
the ice discharge rate into the
A subglacial volcano has also been detected in the area, just north
Pine Island Glacier
In January 2010, a modelling study suggested that the "tipping point"
Pine Island Glacier
PINE ISLAND BAY
PINE ISLAND BAY (74°50′S 102°40′W / 74.833°S 102.667°W / -74.833; -102.667 ) is a bay about 40 miles (64 km) long and 30 miles (48 km) wide, into which flows the ice of the Pine Island Glacier at the southeast extremity of the Amundsen Sea. It was delineated from aerial photographs taken by USN Operation Highjump in December 1946, and named by the Advisory Committee on Antarctic Names (US-ACAN) for the USS Pine Island , seaplane tender and flagship of the eastern task group of USN Operation Highjump which explored this area.
RUSSELL BAY (73°27′S 123°54′W / 73.450°S 123.900°W / -73.450; -123.900 ) is a rather open bay in southwestern Amundsen Sea, extending along the north sides of Siple Island , Getz Ice Shelf and Carney Island , from Pranke Island to Cape Gates . It was mapped by United States Geological Survey (USGS) from surveys and U.S. Navy air photos, 1959–66, and named by the Advisory Committee on Antarctic Names (US-ACAN) for Admiral James S. Russell, USN, Vice Chief of Naval Operations during the post 1957–58 IGY period.
* ^ "Amundsen Sea".
Geographic Names Information System . United
States Geological Survey . Retrieved 23 October 2011.
* ^ Pearce, Fred (2007). With Speed and Violence: Why scientists
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* ^ Flannery, Tim F. (2006). The Weather Makers: How man is
changing the climate and what it means for life on Earth.
HarperCollins. p. 356. ISBN 0-00-200751-7 .
* ^ Strom, Robert (2007). "The Melting Earth". Hot House: Global
Climate Change and the Human Condition. Coprenicus Books. p. 302.
* ^ Black, Richard (20 January 2008). "Ancient Antarctic eruption
* ^ Payne, A. J.; Vieli, A.; Shepherd, A. P.; Wingham, D. J.; Rignot, E. (2004). "Recent dramatic thinning of largest West Antarctic ice stream triggered by oceans". Geophysical Research Letters . 31 (23): L23401. Bibcode :2004GeoRL..3123401P. doi :10.1029/2004GL021284 . * ^ Shepherd, A. P.; Wingham, D. J.; Rignot, E. (2004). "Warm ocean is eroding West Antarctic Ice Sheet". Geophysical Research Letters . 31 (23): L23402. Bibcode :2004GeoRL..3123402S. doi :10.1029/2004GL021106 . * ^ Thoma, M.; Jenkins, A.; Holland, D.; Jacobs, S. (2008). "Modelling Circumpolar Deep Water intrusions on the Amundsen Sea continental shelf, Antarctica". Geophysical Research Letters . 35 (18): L18602. Bibcode :2008GeoRL..3518602T. doi :10.1029/2008GL034939 . * ^ Barley, Shanta (13 January 2010). "Major Antarctic glacier is \'past its tipping point\'". Reed Business Information Ltd. NewScientist. Archived from the original on 16 January 2010. Retrieved 17 January 2010. * ^ Katz, R. F.; Worster, M.G. (2010). "Stability of ice sheet grounding lines". Proceedings of the Royal Society A . 466 (2118): 1597. Bibcode :2010RSPSA.466.1597K. doi :10.1098/rspa.2009.0434 . * ^ "Pine Island Bay". Geographic Names Information System . United States Geological Survey . Retrieved 23 October 2011. * ^ "Russell Bay". Geographic Names Information System . United States Geological Survey . Retrieved 23 October 2011.
* Lubin, Dan; Massom, Robert (2006). Polar Remote Sensing. New York: Springer . * Schnellnhuber, Hans Joachim, ed. (2006). Avoiding Dangerous Climate Change. Cambridge: Cambridge University Press.
* Airborne Geophysical