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Darwin Névé
Darwin Névé () is a large névé in Antarctica. It is on the west side of the Cook Mountains and the Darwin Mountains and feeds both Darwin Glacier and Hatherton Glacier. It was named for its association with Darwin Glacier by the New Zealand Darwin Glacier Party of the Commonwealth Trans-Antarctic Expedition The Commonwealth Trans-Antarctic Expedition (CTAE) of 1955–1958 was a Commonwealth-sponsored expedition that successfully completed the first overland crossing of Antarctica, via the South Pole. It was the first expedition to reach the South ..., 1956–58. References * Snow fields of Oates Land Névés of Antarctica {{OatesLand-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Névé
Névé is a young, granular type of snow which has been partially melted, refrozen and compacted, yet precedes the form of ice. This type of snow is associated with glacier formation through the process of ''nivation''. Névé that survives a full season of ablation turns into firn, which is both older and slightly denser. Firn eventually becomes glacial ice – the long-lived, compacted ice that glaciers are composed of. Glacier formation can take days to years depending on freeze-thaw factors. Névé is annually observed in skiing slopes, and is generally disliked as an icy falling zone. Névé has a minimum density of 500 kg/m3, which is roughly half of the density of liquid water at 1 atm. Névé can also refer to the alpine Alpine may refer to any mountainous region. It may also refer to: Places Europe * Alps, a European mountain range ** Alpine states, which overlap with the European range Australia * Alpine, New South Wales, a Northern Village * Alpine Nati ... [...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] |
Cook Mountains
The Cook Mountains is a group of mountains bounded by the Mulock and Darwin glaciers in Antarctica. Parts of the group were first viewed from the Ross Ice Shelf by the British National Antarctic Expedition (1901–04). Additional portions of these mountains were mapped by a New Zealand party of the CTAE (1956–58), and they were completely mapped by the USGS from Tellurometer surveys and US Navy air photos, 1959–63. Named by the NZ-APC for Captain James Cook. Cook Mountains landforms include Bowling Green Col Bowling Green Col () is an ice-filled east–west col between Reeves Plateau and Bowling Green Plateau in the Cook Mountains. It was named by the Advisory Committee on Antarctic Names The Advisory Committee on Antarctic Names (ACAN or US-ACAN) is ..., Bowling Green Plateau, Bromwich Terrace, DeZafra Ridge, Soyuz-13 Rock, Schoonmaker Ridge, Wright Hill, and the Brown Hills. See also * Butcher Ridge, near the polar plateau in the west part of the Cook Mounta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Darwin Mountains
The Darwin Mountains is a group of mountains between the Darwin and Hatherton glaciers in Antarctica. Discovered by the British National Antarctic Expedition (1901–04) and named for Major Leonard Darwin, at that time Honorary Secretary of the Royal Geographical Society. Features * Access Slope * Colosseum Ridge * Communication Heights * Conant Valley * Corell Cirque * Darwin Glacier * Darwin Névé * Duncan Bluff * Exodus Glacier * Exodus Valley * Friedmann Peak * Grant Valley * Green Glacier * Hale Valley * Harvey Cirque * Haskell Ridge * Hatherton Glacier * Island Arena * Junction Spur * Kennett Ridge * Lindstrom Ridge * Mason Nunatak * McKay Valley * Meteorite Hills * Midnight Plateau * Misthound Cirque * Mount Ash * Mount Ellis * Muchmore Valley * Overturn Glacier * Polarmail Ledge * Prebble Icefalls * Richardson Hill * Scheuermann Spur * Score Ridge * Skilton Ledge * Smith Heights Smith Heights () is the highest part of the jumble of peaks betwe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Darwin Glacier (Antarctica)
Darwin Glacier () is a large glacier in Antarctica. It flows from the polar plateau eastward between the Darwin Mountains and the Cook Mountains to the Ross Ice Shelf. The lower part of the glacier was mapped by the British National Antarctic Expedition, 1901–04, and the whole area traversed by New Zealand parties of the Commonwealth Trans-Antarctic Expedition (1956–58). The glacier was named in association with the Darwin Mountains (themselves named after Leonard Darwin). Robertson Buttress is the westernmost in a series of large rock buttresses on the south side of Darwin Glacier between Alley Glacier and Gaussiran Glacier. See also * Erewhon Basin * List of glaciers in the Antarctic * Glaciology * The Nozzle * Walker Cirque Walker Cirque () is a prominent glacier-filled cirque at the west side of the terminus of McCleary Glacier in Cook Mountains. The cirque opens to Darwin Glacier (Antarctica), Darwin Glacier near the head. Named after Carlton Walker, Facilities, Mai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hatherton Glacier
Hatherton Glacier is a large glacier flowing from the Antarctic polar plateau generally eastward along the south side of the Darwin Mountains and entering Darwin Glacier at Junction Spur. It was mapped by the Darwin Glacier Party of the Commonwealth Trans-Antarctic Expedition (1956–58), and was named for Trevor Hatherton, Scientific Officer in Charge of Antarctic Activities at the Department of Scientific and Industrial Research, Wellington, New Zealand. See also * List of glaciers in the Antarctic * Glaciology 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, climato ... Further reading * Gunter Faure, Teresa M. Mensing, 'The Transantarctic Mountains: Rocks, Ice, Meteorites and Water'', PP 298, 392, 663 * Charles Swithinbank, 'Antarctica, Issue 1386, Part 2'', P 26 * METTE K. GILLESPIE ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commonwealth Trans-Antarctic Expedition
The Commonwealth Trans-Antarctic Expedition (CTAE) of 1955–1958 was a Commonwealth-sponsored expedition that successfully completed the first overland crossing of Antarctica, via the South Pole. It was the first expedition to reach the South Pole overland for 46 years, preceded only by Amundsen's expedition and Scott's expedition in 1911 and 1912. In keeping with the tradition of polar expeditions of the Heroic Age of Antarctic Exploration, the CTAE was a private venture, though it was supported by the governments of the United Kingdom, New Zealand, United States, Australia and South Africa, as well as many corporate and individual donations, under the patronage of Queen Elizabeth II. It was headed by British explorer Vivian Fuchs, with New Zealander Sir Edmund Hillary leading the New Zealand Ross Sea Support team. The New Zealand party included scientists participating in International Geophysical Year research while the British team were separately based at Halley Ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snow Fields Of Oates Land
Snow comprises individual ice crystals that grow while suspended in the atmosphere—usually within clouds—and then fall, accumulating on the ground where they undergo further changes. It consists of frozen crystalline water throughout its life cycle, starting when, under suitable conditions, the ice crystals form in the atmosphere, increase to millimeter size, precipitate and accumulate on surfaces, then metamorphose in place, and ultimately melt, slide or sublimate away. Snowstorms organize and develop by feeding on sources of atmospheric moisture and cold air. Snowflakes nucleate around particles in the atmosphere by attracting supercooled water droplets, which freeze in hexagonal-shaped crystals. Snowflakes take on a variety of shapes, basic among these are platelets, needles, columns and rime. As snow accumulates into a snowpack, it may blow into drifts. Over time, accumulated snow metamorphoses, by sintering, sublimation and freeze-thaw. Where the climate is cold ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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