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Ahlmann Glacier
Ahlmann Glacier () is the southernmost of two glaciers on the east side of Hemimont Plateau flowing east into Seligman Inlet on Bowman Coast, Graham Land in Antarctica. History The glacier was photographed from the air in 1940 by the United States Antarctic Service, and was charted in 1947 by the Falkland Islands Dependencies Survey, who named it for Professor Hans Wilhelmsson Ahlmann, a Swedish glaciologist and geographer. See also * List of glaciers in the Antarctic There are many glaciers in the Antarctic. This set of lists does not include ice sheets, ice caps or ice fields, such as the Antarctic ice sheet, but includes glacial features that are defined by their flow, rather than general bodies of ice. Th ... References * Glaciers of Bowman Coast {{BowmanCoast-glacier-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 continent, being about 40% larger than Europe, and has an area of . Most of Antarctica is covered by the Antarctic ice sheet, with an average thickness of . Antarctica is, on average, the coldest, driest, and windiest of the continents, and it has the highest average elevation. It is mainly a polar desert, with annual precipitation of over along the coast and far less inland. About 70% of the world's freshwater reserves are frozen in Antarctica, which, if melted, would raise global sea levels by almost . Antarctica holds the record for the lowest measured temperature on Earth, . The coastal regions can reach temperatures over in summer. Native species of animals include mites, nematodes, penguins, seals and tardigrades. Where vegetation o ... [...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] |
Seligman Inlet
Seligman Inlet () is a broad inlet which recedes inland for 6 nautical miles (11 km) between Choyce Point and Cape Freeman on the east coast of Graham Land. The inlet was photographed from the air by the United States Antarctic Service (USAS) in 1940. It was charted by the Falkland Islands Dependencies Survey (FIDS) in 1947 and named for Gerald Seligman Gerald Seligman (26 March 1886 – 21 February 1973) was the founder of the International Glaciological Society and the ''Journal of Glaciology''. He was born in London, educated at Harrow, and studied at Trinity Hall, Cambridge. He was the fi ..., founder and president of the British Glaciological Society. Inlets of Graham Land Bowman Coast {{BowmanCoast-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glacier
A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its Ablation#Glaciology, ablation over many years, often Century, centuries. It acquires distinguishing features, such as Crevasse, crevasses and Serac, seracs, as it slowly flows and deforms under stresses induced by its weight. As it moves, it abrades rock and debris from its substrate to create landforms such as cirques, moraines, or fjords. Although a glacier may flow into a body of water, it forms only on land and is distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water. On Earth, 99% of glacial ice is contained within vast ice sheets (also known as "continental glaciers") in the polar regions, but glaciers may be found in mountain ranges on every continent other than the Australian mainland, including Oceania's high-latitude oceanic island countries such as New Zealand. Between lati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemimont Plateau
Hemimont Plateau ( bg, плато Хемимонт, plato Hemimont, ) is the long and narrow ice-covered plateau of elevation about 1600 m in southern Graham Land, Antarctica bordering Avery Plateau on the north. It is situated midway between Loubet Coast and Fallières Coast on the west, and Bowman Coast on the east, and extends 100 km from the heads of Finsterwalder Glacier and Demorest Glacier on the north to Neny Glacier on the south. Its higher southern part rises to 1862 m and features McLeod Hill (1741 m), Beacon Hill (1770 m) and Armadillo Hill (1775 m).Reference Elevation Model of Antarctica. Polar Geospatial Center. University of Minnesota, 2019 The plateau is named after the |
Bowman Coast
The Bowman Coast is the portion of the east coast of the Antarctic Peninsula between Cape Northrop and Cape Agassiz. It was discovered by Sir Hubert Wilkins in an aerial flight of December 20, 1928. It was named by Wilkins for Isaiah Bowman, then Director of the American Geographical Society. MapsAntarctic Digital Database (ADD).Scale 1:250000 topographic map of Antarctica. Scientific Committee on Antarctic Research (SCAR). Since 1993, regularly upgraded and updated. See also *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 ... Further reading * Ute Christina Herzfeld, Atlas of Antarctica: Topographic Maps from Geostatistical Analysis of Satellite Radar Altimeter Data', PP 114, 168 * A. P. Crary, L. M. Gould, E. O. Hulburt, Hugh Odishow, Waldo E. Smith, editors, An ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Antarctic Service
The United States Antarctic Program (or USAP; formerly known as the United States Antarctic Research Program or USARP and the United States Antarctic Service or USAS) is an organization of the United States government which has presence in the Antarctica continent. Founded in 1959, the USAP manages all U.S. scientific research and related logistics in Antarctica as well as aboard ships in the Southern Ocean. United States Antarctic Program The United States established the U.S. Antarctic Research Program (USARP) in 1959—the name was later changed to the U.S. Antarctic Program—immediately following the success of the International Geophysical Year (IGY). Today, the National Science Foundation (NSF) has a Presidential Mandate to manage the United States Antarctic Program, through which it operates three year-round research stations and two research vessels, coordinates all U.S. science on the southernmost continent, and works with other federal agencies, the U.S. military, an ... [...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] |
Hans Wilhelmsson Ahlmann
Hans Jakob Konrad Wilhelmsson Ahlmann (14 November 1889 – 10 March 1974) was a Swedish geographer, glaciologist, and diplomat. Born in Karlsborg, Sweden, Ahlmann grew up in Stockholm. He studied with Professor Gerard De Geer at Stockholm University, and gained his doctorate in 1915 on a doctoral thesis on Sweden's Lake Ragundasjön. The same year, he became an associate professor of geography at the University of Stockholm. He was appointed Associate Professor of Geography at Uppsala University in 1920 and professor at the Stockholm University from 1929 until 1950. He was a very active field worker and led an expedition to Nordaustlandet (North East Land) in the Svalbard archipelago in Norway in the spring of 1931. In 1934 he returned to Svalbard with Professor Harald Ulrik Sverdrup, this time to explore the glaciers on Vestspitsbergen. He examined the Vatnajökull (Vatna Glacier) in Iceland in 1936, and led in the winter of 1939–40 the Swedish-Norwegian study of glaciers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaciologist
Glaciology (; ) is the scientific study of glaciers, or more generally ice and natural phenomena that involve ice. Glaciology is an interdisciplinary Earth science that integrates geophysics, geology, physical geography, geomorphology, climatology, meteorology, hydrology, biology, and ecology. The impact of glaciers on people includes the fields of human geography and anthropology. The discoveries of water ice on the Moon, Mars, Europa and Pluto add an extraterrestrial component to the field, which is referred to as "astroglaciology". Overview A glacier is an extended mass of ice formed from snow falling and accumulating over a long period of time; glaciers move very slowly, either descending from high mountains, as in valley glaciers, or moving outward from centers of accumulation, as in continental glaciers. Areas of study within glaciology include glacial history and the reconstruction of past glaciation. A glaciologist is a person who studies glaciers. A glacial geologist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Glaciers In The Antarctic
There are many glaciers in the Antarctic. This set of lists does not include ice sheets, ice caps or ice fields, such as the Antarctic ice sheet, but includes glacial features that are defined by their flow, rather than general bodies of ice. The lists include outlet glaciers, valley glaciers, cirque glaciers, tidewater glaciers and ice streams. Ice streams are a type of glacier and many of them have "glacier" in their name, e.g. Pine Island Glacier. Ice shelves are listed separately in the List of Antarctic ice shelves. For the purposes of these lists, the Antarctic is defined as any latitude further south than 60° (the continental limit according to the Antarctic Treaty System). List by letters * List of glaciers in the Antarctic: A–H * List of glaciers in the Antarctic: I–Z See also * List of Antarctic and subantarctic islands * List of Antarctic ice rises * List of Antarctic ice shelves * List of Antarctic ice streams * List of glaciers * List of subantar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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