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Arrol Icefall
Arrol Icefall () is a steep icefall about long, originating on the south side of Detroit Plateau, Graham Land, about northwest of Cape Worsley. The 11-km long glacier featuring this icefall is situated southwest of Akaga Glacier and north of Aleksiev Glacier, and flows eastwards into Odrin Bay. The feature was mapped from surveys by the Falkland Islands Dependencies Survey (1960–61), and named by the United Kingdom Antarctic Place-Names Committee after the Arrol-Johnston car, which was adapted for use by Ernest Shackleton's Nimrod Expedition (1907–09) and was the first mechanical transport used in Antarctica Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean, it contains the geographic South Pole. Antarctica is the fifth-largest contine .... References * Icefalls of Antarctica Bodies of ice of Graham Land Nordenskjöld Coast {{NordenskjöldCoast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Icefall
An icefall is a portion of certain glaciers characterized by relatively rapid flow and chaotic crevassed surface, caused in part by gravity. The term ''icefall'' is formed by analogy with the word ''waterfall'', which is a similar phenomenon of the liquid phase but at a more spectacular speed. When ice movement of a glacier is faster than elsewhere, because the glacier bed steepens or narrows, and the flow cannot be accommodated by plastic deformation, the ice fractures, forming crevasses. Where two fractures meet, seracs (or ice towers) can be formed. When the movement of the ice slows down, the crevasses can coalesce, resulting in the surface of the glacier becoming smoother. Ice flow Perhaps the most conspicuous consequence of glacier flow, icefalls occur where the glacier bed steepens and/or narrows. Most glacier ice flows at speeds of a few hundred metres per year or less. However, the flow of ice in an icefall may be measured in kilometres per year. Such rapid flow cannot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Detroit Plateau
Detroit Plateau () is a major interior plateau of Graham Land on the Antarctic Peninsula, with heights between . Its northeast limit is marked by the south wall of Russell West Glacier, from which it extends some in a general southwest direction to Herbert Plateau. The plateau was observed from the air by Sir Hubert Wilkins on a flight of December 20, 1928. Wilkins named it Detroit Aviation Society Plateau after the society which aided in the organizing of his expedition, but the shortened form of the original name is approved. The north and east sides of the plateau were charted by the Falkland Islands Dependencies Survey in 1946–47. Dinsmoor Glacier flows east from the south edge of Detroit Plateau. Central plateaus of Graham Land North to south: * Laclavère Plateau * Louis Philippe Plateau * Detroit Plateau * Herbert Plateau * Foster Plateau * Forbidden Plateau * Bruce Plateau * Avery Plateau * Hemimont Plateau Hemimont Plateau ( bg, плато Хемимонт, plato He ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graham Land
Graham Land is the portion of the Antarctic Peninsula that lies north of a line joining Cape Jeremy and Cape Agassiz. This description of Graham Land is consistent with the 1964 agreement between the British Antarctic Place-names Committee and the US Advisory Committee on Antarctic Names, in which the name "Antarctic Peninsula" was approved for the major peninsula of Antarctica, and the names Graham Land and Palmer Land for the northern and southern portions, respectively. The line dividing them is roughly 69 degrees south. Graham Land is named after Sir James R. G. Graham, First Lord of the Admiralty at the time of John Biscoe's exploration of the west side of Graham Land in 1832. It is claimed by Argentina (as part of Argentine Antarctica), Britain (as part of the British Antarctic Territory) and Chile (as part of the Chilean Antarctic Territory). Graham Land is the closest part of Antarctica to South America. Thus it is the usual destination for small ships taking paying ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Worsley
Cape Worsley () is a dome-shaped cape 225 m high with snow-free cliffs on the south and east sides, lying 10 nautical miles (18 km) east of the south end of Detroit Plateau on Nordenskjöld Coast in Graham Land, Antarctica. Charted by the Falkland Islands Dependencies Survey (FIDS) in 1947 and named for Commander Frank A. Worsley, British polar explorer and member of Sir Ernest Shackleton Sir Ernest Henry Shackleton (15 February 1874 – 5 January 1922) was an Anglo-Irish Antarctic explorer who led three British expeditions to the Antarctic. He was one of the principal figures of the period known as the Heroic Age of An ...'s expeditions of 1914-16 and 1921–22. Headlands of Graham Land Nordenskjöld Coast {{NordenskjöldCoast-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Akaga Glacier
Odrin Bay () is a wide bay indenting for the Nordenskjöld Coast in Graham Land, Antarctica. It is entered southwest of Fothergill Point and northeast of Spoluka Point. Location Odrin Bay is on the Nordenskjöld Coast of the Antarctic Peninsula. It is southeast of the southern end of the Detroit Plateau, and opens onto the Weddell Sea to the south. Glaciers that flow into the bay include Arrol Icefall, Akaga Glacier, Sinion Glacier and Zaychar Glacier. Copernix satellite image Name Odrin Bay is named after the settlements of Odrintsi in Northeastern and Southern Bulgaria. Features Glaciers and other features around the bay include: Arrol Icefall . A steep icefall about long, originating on the south side of Detroit Plateau, about northwest of Cape Worsley. Mapped from surveys by the Falkland Islands Dependencies Survey (FIDS) (1960-61). Named by the UK Antarctic Place-Names Committee (UK-APC) after the Arrol-Johnston car, which was adapted for use by Ernest Shackleton' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aleksiev Glacier
Aleksiev Glacier ( bg, Алексиев ледник, Aleksiev lednik, ) is the 10.5 km long and 3 km wide glacier on Nordenskjöld Coast in Graham Land situated northeast of Kladorub Glacier and south of the glacier featuring Arrol Icefall. It drains the southeast slopes of Detroit Plateau, and flows east-southeastwards to enter Desislava Cove in Weddell Sea. The feature is named after the Bulgarian artist and writer Rayko Aleksiev (1893–1944). Location Aleksiev Glacier is located at . British mapping in 1978. See also * List of glaciers in the Antarctic * Glaciology Maps * British Antarctic Territory. Scale 1:200000 topographic map. DOS 610 Series, Sheet W 64 60. Directorate of Overseas Surveys, Tolworth, UK, 1978. Antarctic Digital Database (ADD).Scale 1:250000 topographic map of Antarctica. Scientific Committee on Antarctic Research (SCAR). Since 1993, regularly upgraded and updated. References Aleksiev GlacierSCAR Composite Antarctic Gazetteer Bulgarian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Odrin Bay
Odrin Bay () is a wide bay indenting for the Nordenskjöld Coast in Graham Land, Antarctica. It is entered southwest of Fothergill Point and northeast of Spoluka Point. Location Odrin Bay is on the Nordenskjöld Coast of the Antarctic Peninsula. It is southeast of the southern end of the Detroit Plateau, and opens onto the Weddell Sea to the south. Glaciers that flow into the bay include Arrol Icefall, Akaga Glacier, Sinion Glacier and Zaychar Glacier. Copernix satellite image Name Odrin Bay is named after the settlements of Odrintsi in Northeastern and Southern Bulgaria. Features Glaciers and other features around the bay include: Arrol Icefall . A steep icefall about long, originating on the south side of Detroit Plateau, about northwest of Cape Worsley. Mapped from surveys by the Falkland Islands Dependencies Survey (FIDS) (1960-61). Named by the UK Antarctic Place-Names Committee (UK-APC) after the Arrol-Johnston car, which was adapted for use by Ernest Shackleton's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Falkland Islands Dependencies Survey
The British Antarctic Survey (BAS) is the United Kingdom's national polar research institute. It has a dual purpose, to conduct polar science, enabling better understanding of global issues, and to provide an active presence in the Antarctic on behalf of the UK. It is part of the Natural Environment Research Council (NERC). With over 400 staff, BAS takes an active role in Antarctic affairs, operating five research stations, one ship and five aircraft in both polar regions, as well as addressing key global and regional issues. This involves joint research projects with over 40 UK universities and more than 120 national and international collaborations. Having taken shape from activities during World War II, it was known as the Falkland Islands Dependencies Survey until 1962. History Operation Tabarin was a small British expedition in 1943 to establish permanently occupied bases in the Antarctic. It was a joint undertaking by the Admiralty and the Colonial Office. At the end of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Kingdom Antarctic Place-Names Committee
The UK Antarctic Place-Names Committee (or UK-APC) is a United Kingdom government committee, part of the Foreign and Commonwealth Office, responsible for recommending names of geographical locations within the British Antarctic Territory (BAT) and the South Georgia and the South Sandwich Islands (SGSSI). Such names are formally approved by the Commissioners of the BAT and SGSSI respectively, and published in the BAT Gazetteer and the SGSSI Gazetteer maintained by the Committee. The BAT names are also published in the international Composite Gazetteer of Antarctica maintained by SCAR. The Committee may also consider proposals for new place names for geographical features in areas of Antarctica outside BAT and SGSSI, which are referred to other Antarctic place-naming authorities, or decided by the Committee itself if situated in the unclaimed sector of Antarctica. Names attributed by the committee * Anvil Crag, named for descriptive features * Anckorn Nunataks, named after J. F. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arrol-Johnston
Arrol-Johnston (later known as Arrol-Aster) was an early Scottish manufacturer of automobiles, which operated from 1895 to 1931 and produced the first automobile manufactured in Britain. The company also developed the world's first "off-road" vehicle for the Egyptian government, and another designed to travel on ice and snow for Ernest Shackleton's Nimrod Expedition to the South Pole. History George Johnston was by training a locomotive engineer from Neilson, Reid and Company Limited of Springburn, Glasgow. Johnston was commissioned by Glasgow Corporation Tramways in 1894 to build an experimental steam-powered tramcar to replace their fleet of horse-drawn trams. During a final test before a Corporation committee, it caught fire and work was abandoned. Johnston's attention was then turned to a detailed examination of continental makes of motor cars and he came to the conclusion that he could design and make a better vehicle than any of them and, in particular, a better engine. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernest Shackleton
Sir Ernest Henry Shackleton (15 February 1874 – 5 January 1922) was an Anglo-Irish Antarctic explorer who led three British expeditions to the Antarctic. He was one of the principal figures of the period known as the Heroic Age of Antarctic Exploration. Born in Kilkea, County Kildare, Ireland, Shackleton and his Anglo-Irish family moved to Sydenham in suburban south London when he was ten. Shackleton's first experience of the polar regions was as third officer on Captain Robert Falcon Scott's ''Discovery'' expedition of 1901–1904, from which he was sent home early on health grounds, after he and his companions Scott and Edward Adrian Wilson set a new southern record by marching to latitude 82°S. During the ''Nimrod'' expedition of 1907–1909, he and three companions established a new record Farthest South latitude at 88°S, only 97 geographical miles (112 statute miles or 180 kilometres) from the South Pole, the largest advance to the pole in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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