Roosevelt Island, Antarctica
Roosevelt Island is an ice-covered island, about 130 km (81 mi) long in a NW-SE direction, 65 km (40 mi) wide and about 7,500 km2 (2,896 sq mi) in area, lying under the eastern part of the Ross Ice Shelf of Antarctica. Its central ridge rises to about 550 m (1,804 ft) above sea level, but this and all other elevations of the island are completely covered by ice, so that the island is invisible at ground level.
![]() Satellite image of Roosevelt Island | |
![]() ![]() Roosevelt Roosevelt Island | |
Geography | |
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Location | Antarctica |
Coordinates | 79°25′S 162°00′W |
Area | 7,500 km2 (2,900 sq mi) |
Area rank | 91st |
Length | 130 km (81 mi) |
Width | 65 km (40.4 mi) |
Highest elevation | 550 m (1800 ft) |
Administration | |
Administered under the Antarctic Treaty System | |
Demographics | |
Population | Data not available |
Additional information | |
Claimed by New Zealand as part of the Ross Dependency. |
Examination of how the ice flows above it establishes the existence and extent of the island.[1] [2] Radar surveying carried out between 1995 and 2013 showed that the Raymond Effect was operating beneath the ice divide.[2][3] The island 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 island.[6] Roosevelt Island lies within the boundaries of the Ross Dependency, New Zealand's Antarctic claim.
See also
- Composite Antarctic Gazetteer
- List of Antarctic and sub-Antarctic islands
- List of Antarctic islands south of 60° S
- SCAR
- Territorial claims in Antarctica
References
- Michon Scott (23 April 2007). "Something under the ice is moving". NASA's Earth Observatory. Retrieved 23 September 2010.
- Conway, H.; et al. (1999). "Past and Future Grounding-Line Retreat of the West Antarctic Ice Sheet". Science. 286: 280–283. doi:10.1126/science.286.5438.280.
- Kingslake, J.; Hindmarsh, R.C.A; Aðalgeirsdóttir, G.; et al. (2014). "Full-depth englacial vertical ice-sheet velocities measured using phase-sensitive radar". Journal of Geophysical Research. 119. doi:10.1029/2014JF003275.
- Bertler, N.A.N.; Conway, H.; Dahl-Jensen, D.; Emanuelsson, D.B.; Winstrup, M.; et al. (2018). "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. 14 (2): 193–214. doi:10.5194/cp-14-193-2018.
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Talalay, Pavel G. (2016). "9: Cable-Suspended Electromechanical Drills with Bottom-Hole Circulation". Mechanical Ice Drilling Technology. Springer Geophysics. Singapore: Springer. p. 236. ISBN 9789811005602. Retrieved 10 November 2016.
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.
- Peter Rejcek (3 September 2010). "Roosevelt Island: U.S., Kiwi scientists team up to look at stability of ice shelf". Antarctic Sun. Retrieved 23 September 2010.