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Ice Streams Of Antarctica
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, Gazetteer. Major Antarctic ice drainage systems are given by Rignot and Thomas (2002). These include the ice streams with the greatest flow, which are listed below. References {{DEFAULTSORT:Antarctic ice streams Ice streams of Antarctica, * Antarctica-related lists, Ice streams ... [...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] |
Fox Ice Stream
Fox Ice Stream () is an ice stream about long flowing into Eltanin Bay southwest of Wirth Peninsula, Antarctica. It was named by the Advisory Committee on Antarctic Names after Adrian Fox of the British Antarctic Survey, part of the USA–UK cooperative project to compile Glaciological and Coastal-Change Maps of the Antarctic Peninsula The Antarctic Peninsula, known as O'Higgins Land in Chile and Tierra de San Martin in Argentina, and originally as Graham Land in the United Kingdom and the Palmer Peninsula in the United States, is the northernmost part of mainland Antarctica. ...; he was active in field and mapping projects from the early 1990s onwards. References Ice streams of Ellsworth Land {{EllsworthLand-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ninnis Glacier
Ninnis Glacier () is a large, heavily hummocked and crevassed glacier descending steeply from the high interior to the sea in a broad valley, on George V Coast in Antarctica. It was discovered by the Australasian Antarctic Expedition (1911–14) under Douglas Mawson, who named it for Belgrave Edward Sutton Ninnis, Lieutenant B. E. S. Ninnis, who lost his life on the Far Eastern Party, far east sledge journey of the expedition on 14 December 1912 through falling into the Black Crevasse in the glacier. The seawards extension of the glacier is the broad Ninnis Glacier Tongue (). It was recorded (1962) as projecting seaward about 30 miles (50 km). See also * List of glaciers in the Antarctic * List of Antarctic ice streams References [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mulock Glacier
} The Mulock Glacier () is a large, heavily crevassed glacier which flows into the Ross Ice Shelf south of the Skelton Glacier in the Ross Dependency, Antarctica. Name The Mulock Glacier was named by the New Zealand Antarctic Place-Names Committee (e NZAPC) in association with Mulock Inlet for Lieutenant George Mulock, Royal Navy, surveyor with the expedition. Glaciology The main trunk of the Mulock Glacier is about long and drops about from the edge of the East Antarctic Ice Sheet to its grounding line at its mouth. It has the largest catchment area between David Glacier and Byrd Glacier, and drains about 5.23±0.59 gigatonnes of ice per year into the Ross Ice Shelf. Its discharge rate is roughly in balance with the accumulation rate in its catchment area. Velocities vary along its course, probably due to changes in the ground slope below the glacier. In 1960–61 ice velocities along the grounded center line were about per year. In 2001–02 these had risen to about per y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Möller Ice Stream
Möller Ice Stream () is an Antarctic ice stream that drains an area of of the West Antarctic Ice Sheet as it flows north-northeast into the Ronne Ice Shelf to the west of Foundation Ice Stream. The drainage basin of this ice stream is separated by the Rambo Nunataks from the drainage basin of Foundation Ice Stream. The feature was delineated from U.S. Landsat imagery commissioned by the Institut für Angewandte Geodäsie, Frankfurt am Main, Germany, recorded January–March, 1986. It was named after German engineer Professor Dietrich Möller, Director of the Institute for Land Survey at the Technical University of Braunschweig from 1972, and Deputy Leader and in charge of geodetic work at Filchner Station on the Ronne Ice Shelf in 1979–80. 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 ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mertz Glacier
Mertz Glacier () is a heavily crevassed glacier in George V Coast of East Antarctica. It is the source of a glacial prominence that historically has extended northward into the Southern Ocean, the ''Mertz Glacial Tongue''. It is named in honor of the Swiss explorer Xavier Mertz. The Mertz-Ninnis Valley () is an undersea valley named in association with the Mertz Glacier and the Ninnis Glacier. Geography Mertz Glacier is about long and averaging wide. It reaches the sea at the head of a 60 km fjord where it continues as a large glacier tongue out between Cape De la Motte/ Buchanan Bay on the West, and Cape Hurley/ Fisher Bay on the east, into the Southern Ocean. The Mertz Glacier Tongue () is about long in total hence it protrudes about 20–25 km out into the Ocean. It is roughly wide. The Glacier delivers about 10 to 12 Gigatons of ice per year to the fjord and the Tongue advances at about 1 km per year down the fjord and out into the Ocean. History The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercer Ice Stream
Mercer Ice Stream (), formerly Ice Stream A, flows west to Gould Coast to the south of Whillans Ice Stream, Antarctica. It is the southernmost of several major ice streams draining from Marie Byrd Land into the Ross Ice Shelf. The ice streams were investigated and mapped by U.S. Antarctic Research Program personnel in a number of field seasons from 1983–84 and named Ice Stream A, B, C, etc., according to their position from south to north. The name was changed by the Advisory Committee on Antarctic Names in 2002 to honor Quaternary geologist John H. Mercer (1922–87) of the Institute of Polar Studies (now the Byrd Polar Research Center), Ohio State University, who mapped the moraines above Reedy Glacier and in the Ohio Range at the head of Horlick Ice Stream, the major tributaries to Mercer Ice Stream. See also * Conway Ice Ridge * 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MacAyeal Ice Stream
MacAyeal Ice Stream (), formerly Ice Stream E, is an ice stream in Antarctica flowing west to the juncture of Shirase Coast and Siple Coast between Bindschadler Ice Stream and Echelmeyer Ice Stream. It is one of several major ice streams draining from Marie Byrd Land into the Ross Ice Shelf. The ice streams were investigated and mapped by U.S. Antarctic Research Program personnel in a number of field seasons from 1983 to 1984 onwards and named Ice Stream A, B, C, etc., according to their position from south to north. The name was changed from Ice Stream E by the Advisory Committee on Antarctic Names in 2002 to honor Douglas R. MacAyeal of the Department of Geophysical Sciences, University of Chicago, a U.S. Antarctic Program investigator in the Ross Sea area including study of the Ross Ice Shelf, the West Antarctic Ice Sheet and the Marie Byrd Land ice streams, 1989–2002. Shabtaie Ice Ridge sits between the MacAyeal and Bundschadler ice streams. See also * List of glaciers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lidke Ice Stream
Stange Sound () is a sound about long and wide along the coast of Ellsworth Land, Antarctica. An ice shelf occupies the sound, which is bounded on the west by Smyley Island and Case Island, on the south by the mainland, on the east by Spaatz Island and on the north by open water in the Ronne Entrance. Photographed from the air and roughly plotted by the Ronne Antarctic Research Expedition (RARE. 1947-48) under Finn Ronne. Named for Henry Stange of New York, a contributor to RARE who gave much time to assisting in preparations for the expedition. Location Stange Sound is on the English Coast of Ellsworth Land. It is largely ice-covered. It adjoins Carroll Inlet to the west and Ronne Entrance to the north and east, from which it is separated by Spaatz Island. Hill Glacier flows into the sound from Spaatz Island. Features Stange Ice Shelf . The ice shelf in Stange Sound, English Coast, bounded to the east by Spaatz Island, to the northwest by Smyley Island, and to the we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Land Glacier
The Land Glacier () is a broad, heavily crevassed glacier, about long, descending into Land Bay in Marie Byrd Land, Antarctica. It was discovered by the United States Antarctic Service (1939–41) and named for Rear Admiral Emory S. Land, Chairman of the United States Maritime Commission. Location The Land Glacier flows north from the ice field to the northeast of the west-flowing Balchen Glacier and Crevasse Valley Glacier. Milan Rock is to the east of its upper section. It flows past the west side of the ridge that includes Mount Hartkopf, Pearson Peak (formerly Mount Pearson), McGraw Peak and Mount McCoy, where it is joined from the east by the combined Paschal Glacier and White Glacier. Castillo Point defines the eastern point of its mouth. From its west it is joined by Farbo Glacier and El-Sayed Glacier, which both descend from the heights of Zuncich Hill and McGee Rock. Between these two, it saddles at Parker Pass with the west-flowing Siemiatkowski Glacier. Bruner Hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lambert Glacier
Lambert Glacier is a major glacier in East Antarctica. At about 80 km (50 mi) wide, over 400 km (250 mi) long, and about 2,500 m (8,200 ft) deep, it is the world's largest glacier. It drains 8% of the Antarctic ice sheet to the east and south of the Prince Charles Mountains and flows northward to the Amery Ice Shelf. It flows in part of Lambert Graben and exits the continent at Prydz Bay. This glacier was delineated and named in 1952 by American geographer John H. Roscoe who made a detailed study of this area from aerial photographs taken by Operation Highjump, 1946–47. He gave the name "Baker Three Glacier", using the code name of the Navy photographic aircraft and crew that made three flights in this coastal area in March 1947 resulting in geographic discoveries. The glacier was described in Gazetteer No. 14, ''Geographic Names of Antarctica'' ( U.S. Board on Geographic Names, 1956), but the feature did not immediately appear on published maps. As a result th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kamb Ice Stream
Kamb Ice Stream (), a glaciological feature of the Ross Ice Shelf of the West Antarctic Ice Sheet, formerly known as Ice Stream C, the ice stream was renamed in 2001 in honor of Caltech The California Institute of Technology (branded as Caltech) is a private university, private research university in Pasadena, California, United States. The university is responsible for many modern scientific advancements and is among a small g ... Glaciologist Dr. Barclay Kamb. Its margins were the focus of a sequence of scientific borehole expeditions in 2019 and 2021 where a New Zealand team melted their way through the ice to sample the oceanographic conditions below. Sources Antarctic Glaciologists Honored by ACAN Ice streams of Marie Byrd Land {{MarieByrdLand-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
