Roosevelt Island, Antarctica Explained

Roosevelt
Map:Antarctica
Location:Antarctica
Area Km2:7500
Area:75000NaN0 (91st) -->
Rank:91st
Length Km:130
Length:1300NaN0 -->
Width Km:65
Width:650NaN0 -->
Elevation M:550
Country:None
Population:Data not available
Treaty System:Antarctic Treaty System
Additional Info:Claimed by New Zealand as part of the Ross Dependency.

Roosevelt Island is the second largest ice rise of Antarctica and world-wide, after Berkner Island. Despite its name, it is not an island, since the bedrock below the ice at its highest part is below sea level. It is about 1300NaN0 long in a NW-SE direction, 650NaN0 wide and about 75000NaN0 in area, lying under the eastern part of the Ross Ice Shelf of Antarctica. Its central ridge rises to about 5500NaN0 above sea level, but this and all other elevations of the ice rise are completely covered by ice, so that it is invisible at ground level.

Examination of how the ice flows above it establishes the existence and extent of the ice rise.[1] [2] Radar surveying carried out between 1995 and 2013 showed that the Raymond Effect was operating beneath the ice divide.[3] The ice rise has become a focus of the Roosevelt Island Climate Evolution (RICE) research[4] using ice coring.[5]

Rear Admiral Richard E. Byrd named it in 1934 after US President Franklin D. Roosevelt. Byrd was the leader of the expedition that discovered the ice rise.[6] Roosevelt Island lies within the boundaries of the Ross Dependency, New Zealand's Antarctic claim.

See also

Notes and References

  1. Web site: Something under the ice is moving . Michon Scott . NASA's Earth Observatory . 23 April 2007 . 23 September 2010.
  2. 1. H. . Conway. B.L. . Hall . G.H. . Denton. A.L. . Gades. E.D. . Waddington. Past and Future Grounding-Line Retreat of the West Antarctic Ice Sheet. Science. 1999 . 10.1126/science.286.5438.280. 286. 5438 . 280–283. 10514369 . 1999.
  3. Kingslake. J.. Hindmarsh. R.C.A. Aðalgeirsdóttir. G.. Conway. H.. Corr. H.F.J.. Gillet-Chaulet. F. . Martín. C.. King. E.C.. Mulvaney. R.. Pritchard. H.D. . 3. Full-depth englacial vertical ice-sheet velocities measured using phase-sensitive radar . Journal of Geophysical Research. 2014. 119. 12. 2604–2618. 10.1002/2014JF003275. 2014JGRF..119.2604K. 129824379. free.
  4. 5. N.A.N. . Bertler. H. . Conway . D. . Dahl-Jensen . D.B. . Emanuelsson . M. . Winstrup . P.T. . Vallelonga . J.E. . Lee . E.J. . Brook . J.P. . Severinghaus . T.J. . Fudge . E.D. . Keller . W.T. . Baisden . R.C.A. . Hindmarsh. P.D. . Neff . T. . Blunier . R. . Edwards . P.A. . Mayewski . S. . Kipfstuhl . C. . Buizert . S. . Canessa . R. . Dadic . H.A. . Kjær . A. . Kurbatov . D. . Zhang . E.D. . Waddington . G. . Baccolo . T. . Beers . H.J. . Brightley . L. . Carter . D. . Clemens-Sewall . V.G. . Ciobanu . B. . Delmonte . L. . Eling . A.A. . Ellis . S. . Ganesh . N.R. . Golledge . S.A. . Haines . M. . Handley . R.L. . Hawley . C.M. . Hogan . K.M. . Johnson . E. . Korotkikh . D.P. . Lowry . D. . Mandeno . R.M. . McKay. J.A. . Menking . T.R. . Naish . C. . Noerling . A. . Ollive. A. . Orsi . B.C. . Proemse . A.R. . Pyne . R.L. . Pyne . J. . Renwick . R.P. . Scherer . S. . Semper . M. . Simonsen . S.B. . Sneed . E.J. . Steig . A. . Tuohy . A. . Ulayottil Venugopal . F. . Valero-Delgado . J. . Venkatesh . F. . Wang . S. . Wang . D.A. . Winski . V.H.L. . Winton . A. . Whiteford . C. . Xiao . J. . Yang . X. . Zhang . The Ross Sea Dipole - Temperature, Snow Accumulation and Sea Ice Variability in the Ross Sea Region, Antarctica, over the Past 2,700 Years. Climate of the Past. 2018 . 10.5194/cp-14-193-2018. 14. 2. 193–214. 2018CliPa..14..193B . 2018. free. 10281/189363. free.
  5. Book: Talalay. Pavel G.. 9: Cable-Suspended Electromechanical Drills with Bottom-Hole Circulation. Mechanical Ice Drilling Technology. Springer Geophysics. 16 March 2016. Singapore. Springer. 2016. 236. 9789811005602. 2016-11-10. Roosevelt Island is a coastal ice rise [...] where intermediate-depth ice coring was carried out as part of the Roosevelt Island Climate Evolution (RICE) international project led by New Zealand..
  6. News: Roosevelt Island: U.S., Kiwi scientists team up to look at stability of ice shelf . Antarctic Sun . Peter Rejcek . 3 September 2010 . 23 September 2010.

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