| 词条 | Roosevelt Island, Antarctica |
| 释义 |
| name = Roosevelt | image_name = Roosevelt Island, Antarctica - satellite image.jpg | image_caption = Satellite image of Roosevelt Island | map = Antarctica | map_caption = Roosevelt Island | map_custom = | nickname = | location = Antarctica | coordinates = {{Coord|79|25|S|162|00|W|scale:2000000|display=inline,title}} | archipelago = | total_islands = | major_islands = | area_km2 = 7500 | rank = 91st | length_km = 130 | width_km = 65 | highest_mount = | elevation_m = 550 | country = None | population =Data not available | population_as_of = | density_km2 = | ethnic_groups = | treaty_system = Antarctic Treaty System | additional_info = Claimed by New Zealand as part of the Ross Dependency. }} Roosevelt Island is an ice-covered island, about {{Convert|130|km|mi|0|abbr=on}} long in a NW-SE direction, {{Convert|65|km|mi|0|abbr=on}} wide and about {{Convert|7500|km2|sqmi|0|abbr=on}} in area, lying under the eastern part of the Ross Ice Shelf of Antarctica. Its central ridge rises to about {{convert|550|m|ft|0|abbr=on}} 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. Examination of how the ice flows above it establishes the existence and extent of the island.[1] 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.[2] Roosevelt Island lies within the boundaries of the Ross Dependency, New Zealand's Antarctic claim. The island has become a focus of the Roosevelt Island Climate Evolution (RICE) research using ice coring.[3] See also
References1. ^{{Cite web|url= http://earthobservatory.nasa.gov/Features/IceMoving/ |title= Something under the ice is moving |author= Michon Scott |publisher= NASA's Earth Observatory |date= 23 April 2007 |accessdate= 23 September 2010}} 2. ^{{Cite news|url= http://antarcticsun.usap.gov/science/contenthandler.cfm?id=2254 |title= Roosevelt Island: U.S., Kiwi scientists team up to look at stability of ice shelf |newspaper= Antarctic Sun |author= Peter Rejcek |date= 3 September 2010 |accessdate= 23 September 2010}} 3. ^{{cite book| last1 = Talalay| first1 = Pavel G.| author-link1 = | chapter = 9: Cable-Suspended Electromechanical Drills with Bottom-Hole Circulation| title = Mechanical Ice Drilling Technology| url = https://books.google.com/books?id=HhTNCwAAQBAJ| series = Springer Geophysics| location = Singapore| publisher = Springer| publication-date = 2016| page = 236| doi-broken-date = | isbn = 9789811005602| access-date = 2016-11-10| quote = 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.}} External links 1 : Islands of the Ross Dependency |
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