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Jutulstraumen Glacier
Jutulstraumen Glacier is a large glacier in Queen Maud Land, Antarctica, about long, draining northward to the Fimbul Ice Shelf between the Kirwan Escarpment, Borg Massif and Ahlmann Ridge on the west and the Sverdrup Mountains on the east. It was mapped by Norwegian cartographers from surveys and air photos by the Norwegian–British–Swedish Antarctic Expedition (1949–52) and air photos by the Norwegian expedition (1958–59) and named Jutulstraumen (the giant's stream). More specifically jutulen are troll-like figures from Norwegian folk tales. The ice stream reaches speeds of around 4 metres per day near the coast where it is heavily crevassed. See also * List of glaciers in the Antarctic * List of Antarctic ice streams This is a list of Antarctic ice streams. A complete list of Antarctic ice streams is not available. Names and locations of Antarctic ice features, including those listed below, can be found in the Scientific Committee on Antarctic Research The ... ... [...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] |
Queen Maud Land
Queen Maud Land ( no, Dronning Maud Land) is a roughly region of Antarctica claimed by Norway as a dependent territory. It borders the claimed British Antarctic Territory 20° west and the Australian Antarctic Territory 45° east. In addition, a small unclaimed area from 1939 was annexed in June 2015. Positioned in East Antarctica, it makes out about one-fifth of the continent, and is named after the Norwegian queen Maud of Wales (1869–1938). In 1930, the Norwegian Hjalmar Riiser-Larsen was the first person known to have set foot in the territory. On 14 January 1939, the territory was claimed by Norway. On 23 June 1961, Queen Maud Land became part of the Antarctic Treaty System, making it a demilitarised zone. It is one of two Antarctic claims made by Norway, the other being Peter I Island. They are administered by the Polar Affairs Department of the Norwegian Ministry of Justice and Public Security in Oslo. Most of the territory is covered by the east Antarctic ic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fimbul Ice Shelf
The Fimbul Ice Shelf is an Antarctic ice shelf about long and wide, nourished by Jutulstraumen Glacier, bordering the coast of Queen Maud Land from 3°W to 3°E. It was photographed from the air by the Third German Antarctic Expedition (1938–1939), mapped by Norwegian cartographers from surveys and air photos by the Norwegian–British–Swedish Antarctic Expedition The Norwegian–British–Swedish Antarctic Expedition (also known as NBSX or NBSAE) (1949–1952) was the first Antarctica expedition involving an international team of scientists. The team members came from Norway, Sweden and the British Commonw ... (1949–1952) and from air photos by the Norwegian expedition (1958–1959) and named Fimbulisen (the giant ice). References External links Fimbul Ice Shelf – top to bottomNumerical simulations of the ice flow dynamics of Fimbulisen Ice shelves of Queen Maud Land Princess Martha Coast {{PrincessMarthaCoast-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kirwan Escarpment
The Kirwan Escarpment ( no, Kirwanveggen) is a prominent northwest-facing escarpment which lies south of the Penck Trough in Queen Maud Land, Antarctica. The escarpment is featured by moderate-height cliffs and prominent rock spurs interspersed with glaciers and steep ice slopes and trends northeast–southwest for about . At least the northern end of this feature (Neumayer Cliffs) was included in the aerial photography of the general area by the Third German Antarctic Expedition (1938–39), but the maps resulting from that expedition do not portray the escarpment properly. The escarpment was mapped by Norwegian cartographers from surveys and air photos (1958–59) and named for Laurence P. Kirwan, Director of the Royal Geographical Society The Royal Geographical Society (with the Institute of British Geographers), often shortened to RGS, is a learned society and professional body for geography based in the United Kingdom. Founded in 1830 for the advancement of geographical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borg Massif
Borg Massif is a mountain massif, about long and with summits above , situated along the northwest side of the Penck Trough in Queen Maud Land, East Antarctica. The tallest peak, at , is Hogsaetet Mountain. The parallel, ice-filled Raudberg Valley and Frostlendet Valley trend northeastward through the massif, dividing its summits into three rough groups: Discovery and naming The feature was photographed from the air by the Third German Antarctic Expedition (1938–1939), led by Captain Alfred Ritscher, but was not correctly shown on the maps by the expedition. It was mapped in detail by Norwegian cartographers from surveys and air photos by the Norwegian–British–Swedish Antarctic Expedition (1949–1952), led by John Schjelderup Giæver. It was remapped by air photos taken by the Sixth Norwegian Antarctic Expedition (1958–1959). They named it "Borgmassivet" (the castle massif) in association with Borg Mountain, its most prominent feature. Features *Located at the nor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ahlmann Ridge
Ahlmann Ridge, also known as Ahlmannryggen, is a broad, mainly ice-covered ridge, about long, surmounted by scattered, low peaks. It rises between Schytt Glacier and Jutulstraumen Glacier and extends from Borg Massif northward to Fimbul Ice Shelf in Queen Maud Land. The area was first photographed from aircraft of the Third German Antarctic Expedition (1938–39) and peaks in this vicinity were roughly plotted. The Stein Nunataks and Witte Peaks, named by the German Antarctic Expedition, appear to coincide with the northeast part of the Ahlmann Ridge. The feature was mapped in detail from surveys and air photos by the Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949–1952) and air photos by the Norwegian expedition (1958–59). Named for Hans Wilhelmsson Ahlmann, chairman of the Swedish committee for the NBSAE. Istindhalsen Saddle is an ice saddle between Istind Peak and the Grunehogna Peaks on the Ahlmann Ridge. Like the ridge, it was mapped by the NBSAE and the Nor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sverdrup Mountains
The Sverdrup Mountains ( no, Sverdrupfjella) are a group of mountains about long, standing just west of the Gjelsvik Mountains in Queen Maud Land, East Antarctica. With its summit at , Hamartind Peak forms the highest point in the Sverdrup Mountains. Discovery and naming First photographed from the air and roughly plotted by the Third German Antarctic Expedition (3rd GAE), 1938–1939. Mapped in detail by Norwegian cartographers from surveys and aerial photographs taken by the Norwegian–British–Swedish Antarctic Expedition (NBSAE), and again by a later Norwegian expedition. Named for Harald Sverdrup, Chairman of the Norwegian Committee for the NBSAE. Norwegian–British–Swedish Antarctic Expedition Norwegian–British–Swedish Antarctic Expedition (NBSAE), 1949–1952 Norwegian Expedition Luncke Expedition, 1958–1959 List of important geographical features of the Sverdrup Mountains See also * List of mountains of Queen Maud Land This list of mountains of Quee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norwegian–British–Swedish Antarctic Expedition
The Norwegian–British–Swedish Antarctic Expedition (also known as NBSX or NBSAE) (1949–1952) was the first Antarctica expedition involving an international team of scientist A scientist is a person who conducts Scientific method, scientific research to advance knowledge in an Branches of science, area of the natural sciences. In classical antiquity, there was no real ancient analog of a modern scientist. Instead, ...s. The team members came from Norway, Sweden and the Commonwealth of Nations, British Commonwealth of Nations. History The Norwegian–British–Swedish Antarctic Expedition was the first expedition to Antarctica involving an international team of scientists. The expedition was led by John Schjelderup Giæver, a Norwegian author and polar researcher. The expedition had the goal of establishing whether climatic fluctuations observed in the Arctic were also occurring in the Antarctic. A base known as Maudheim Station, Maudheim was established on the Quar Ice S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jötunn
A (also jotun; in the normalised scholarly spelling of Old Norse, ; ; plural / ) or, in Old English, (plural ) is a type of supernatural being in Germanic mythology. In Norse mythology, they are often contrasted with gods (Æsir and Vanir) and other non-human figures, such as dwarfs and elves, although the groupings are not always mutually exclusive. The entities themselves are referred to by several other terms, including , (or ) and if male and or if female. The typically dwell across boundaries from the gods and humans in lands such as . The are frequently attested throughout the Old Norse record, with also featuring in the Old English epic poem ''Beowulf''. The usage of the terms is dynamic, with an overall trend that the beings become portrayed as less impressive and more negative as Christianity becomes more influential. Although the term "giant" is sometimes used to gloss the word "" and its apparent synonyms in some translations and academic texts, are not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Troll
A troll is a being in Nordic folklore, including Norse mythology. In Old Norse sources, beings described as trolls dwell in isolated areas of rocks, mountains, or caves, live together in small family units, and are rarely helpful to human beings. In later Scandinavian folklore, trolls became beings in their own right, where they live far from human habitation, are not Christianized, and are considered dangerous to human beings. Depending on the source, their appearance varies greatly; trolls may be ugly and slow-witted, or look and behave exactly like human beings, with no particularly grotesque characteristic about them. Trolls are sometimes associated with particular landmarks in Scandinavian folklore, which at times may be explained as formed from a troll exposed to sunlight. Trolls are depicted in a variety of media in modern popular culture. Etymology The Old Norse nouns ''troll'' and ''trǫll'' (variously meaning "fiend, demon, werewolf, jötunn") and Middle High Germa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Stream
An ice stream is a region of fast-moving ice within an ice sheet. It is a type of glacier, a body of ice that moves under its own weight. They can move upwards of a year, and can be up to in width, and hundreds of kilometers in length. They tend to be about deep at the thickest, and constitute the majority of the ice that leaves the sheet. In Antarctica, the ice streams account for approximately 90% of the sheet's mass loss per year, and approximately 50% of the mass loss in Greenland. The shear forces cause deformation and recrystallization that drive the movement, this movement then causes topographic lows and valleys to form after all of the material in the ice sheet has been discharged. Sediment also plays an important role in flow velocity, the softer and more easily deformed the sediment present, the easier it is for flow velocity to be higher. Most ice streams contain a layer of water at the bottom, which lubricates flow and acts to increase speed. Mechanics Ice str ... [...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] |
