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Adélie Valley
Adélie Valley (), also variously known as Adilie Valley, Dumont d'Urville Trough or Adélie Trough, is a drowned fjord (undersea valley) on the continental margin of East Antarctica. Named in association with this long named portion of Wilkes Land on the Antarctic coast. Name approved by the Advisory Committee on Undersea Features Advisory may refer to: * Advisory board, a body that provides advice to the management of a corporation, organization, or foundation * Boil-water advisory, a public health directive given by government to consumers when a community's drinking wate ... in December 1971. Valleys of Antarctica Landforms of Wilkes Land {{WilkesLand-geo-stub ...
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Fjord
In physical geography, a fjord (also spelled fiord in New Zealand English; ) is a long, narrow sea inlet with steep sides or cliffs, created by a glacier. Fjords exist on the coasts of Antarctica, the Arctic, and surrounding landmasses of the northern and southern hemispheres. Norway's coastline is estimated to be long with its nearly 1,200 fjords, but only long excluding the fjords. Formation A true fjord is formed when a glacier cuts a U-shaped valley by ice segregation and abrasion of the surrounding bedrock. According to the standard model, glaciers formed in pre-glacial valleys with a gently sloping valley floor. The work of the glacier then left an overdeepened U-shaped valley that ends abruptly at a valley or trough end. Such valleys are fjords when flooded by the ocean. Thresholds above sea level create freshwater lakes. Glacial melting is accompanied by the rebounding of Earth's crust as the ice load and eroded sediment is removed (also called isostasy or gla ...
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East Antarctica
East Antarctica, also called Greater Antarctica, constitutes the majority (two-thirds) of the Antarctic continent, lying primarily in the Eastern Hemisphere south of the Indian Ocean, and separated from West Antarctica by the Transantarctic Mountains. It is generally greater in elevation than West Antarctica, and includes the Gamburtsev Mountain Range in the center. The geographic South Pole is located within East Antarctica. Apart from small areas of the coast, East Antarctica is permanently covered by ice and it has relatively low biodiversity, with only a small number of species of terrestrial plants, animals, algae, and lichens. The coasts are the breeding ground for various seabirds and penguins, and the leopard seal, Weddell seal, elephant seal, crabeater seal and Ross seal breed on the surrounding pack ice in summer. Location and description Almost completely covered in thick, permanent ice, East Antarctica comprises Coats Land, Queen Maud Land, Enderby Land, ...
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Wilkes Land
Wilkes Land is a large district of land in eastern Antarctica, formally claimed by Australia as part of the Australian Antarctic Territory, though this claim has been held in abeyance for the period of the operation of the Antarctic Treaty, to which Australia is a signatory. Geography Wilkes Land fronts on the southern Indian Ocean between Queen Mary Coast and Adélie Land, Adelie Land, extending from Cape Hordern in 100°31' E to Pourquoi Pas Point, in 136°11' E. The region extends as a Circular sector, sector about 2600 kilometre, km towards the South Pole, with an estimated land area of 2,600,000 km², mostly glaciated. Subdivisions It is further subdivided in the following coastal areas which can also be thought of as sectors extending to the South Pole: # Knox Coast: 100°31' E to 109°16' E # Budd Coast: 109°16' E to 115°33' E # Sabrina Coast: 115°33' E to 122°05' E # Banzare Coast: 122°05' E to 130°10' E ...
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Advisory Committee On Undersea Features
Advisory may refer to: * Advisory board, a body that provides advice to the management of a corporation, organization, or foundation * Boil-water advisory, a public health directive given by government to consumers when a community's drinking water could be contaminated by pathogens * Homeroom, or advisory, is the classroom session in which a teacher records attendance and makes announcements * Significant weather advisory, a Special Weather Statement advising inclement weather is likely or imminent See also * Advice (other) Advice (noun) or advise (verb) may refer to: * Advice (opinion), an opinion or recommendation offered as a guide to action, conduct * Advice (constitutional law) a frequently binding instruction issued to a constitutional office-holder * Advice ... * Advisory Council (other) {{disambiguation ...
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Valleys Of Antarctica
A valley is an elongated low area often running between hills or mountains and typically containing a river or stream running from one end to the other. Most valleys are formed by erosion of the land surface by rivers or streams over a very long period. Some valleys are formed through erosion by glacial ice. These glaciers may remain present in valleys in high mountains or polar areas. At lower latitudes and altitudes, these glacially formed valleys may have been created or enlarged during ice ages but now are ice-free and occupied by streams or rivers. In desert areas, valleys may be entirely dry or carry a watercourse only rarely. In areas of limestone bedrock, dry valleys may also result from drainage now taking place underground rather than at the surface. Rift valleys arise principally from earth movements, rather than erosion. Many different types of valleys are described by geographers, using terms that may be global in use or else applied only locally. Format ...
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