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Victoria Upper Glacier
Victoria Upper Glacier () is a glacier occupying the upper northwest end of Victoria Valley in Antarctica. It is a retreating glacier. The Victoria Valley is the northernmost of the McMurdo Dry Valleys. Melt water from the glacier feeds the Victoria River and on from there to Lake Vida Lake Vida is a hypersaline lake in Victoria Valley, the northernmost of the large McMurdo Dry Valleys, on the continent of Antarctica. It is isolated under year-round ice cover, and is considerably more saline than seawater. It came to public at .... It was named by the Victoria University Wellington Antarctic Expedition (1958–59) for their Alma Mater, which sponsored the expedition. In 2003, it was renamed from Upper Victoria Glacier to be consistent with Victoria Lower Glacier. Heaphy Spur divides the head of Victoria Upper Glacier. References Glaciers of Victoria Land McMurdo Dry Valleys {{McMurdoDryValleys-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Victoria Glacier
Victoria Upper Glacier () is a glacier occupying the upper northwest end of Victoria Valley in Antarctica. It is a retreating glacier. The Victoria Valley is the northernmost of the McMurdo Dry Valleys. Melt water from the glacier feeds the Victoria River and on from there to Lake Vida Lake Vida is a hypersaline lake in Victoria Valley, the northernmost of the large McMurdo Dry Valleys, on the continent of Antarctica. It is isolated under year-round ice cover, and is considerably more saline than seawater. It came to public at .... It was named by the Victoria University Wellington Antarctic Expedition (1958–59) for their Alma Mater, which sponsored the expedition. In 2003, it was renamed from Upper Victoria Glacier to be consistent with Victoria Lower Glacier. Heaphy Spur divides the head of Victoria Upper Glacier. References Glaciers of Victoria Land McMurdo Dry Valleys {{McMurdoDryValleys-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victoria Valley
Victoria Valley is one of the larger McMurdo Dry Valleys in Antarctica. Lake Vida is the largest lake of the valley. The Victoria River drains the Victoria Upper Glacier, with Upper Victoria Lake just below it and northwest of Lake Vida, into Vida Lake on its western side. Lake Thomas Lake Thomas is a meltwater lake that is circumscribed on the northwest and northeast sides by Robertson Ridge and Clark Glacier (Antarctica), Clark Glacier, in Victoria Land, Antarctica. It was named by the Advisory Committee on Antarctic Names for ... is east of Lake Vida. See also * Dry Valleys Geology Valleys of Victoria Land McMurdo Dry Valleys {{McMurdoDryValleys-geo-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] |
McMurdo Dry Valleys
The McMurdo Dry Valleys are a row of largely snow-free valleys in Antarctica, located within Victoria Land west of McMurdo Sound. The Dry Valleys experience extremely low humidity and surrounding mountains prevent the flow of ice from nearby glaciers. The rocks here are granites and gneisses, and glacial tills dot this bedrock landscape, with loose gravel covering the ground. It is one of the driest places on Earth and has not seen rain for nearly two million years. The region is one of the world's most extreme deserts, and includes many features including Lake Vida, a saline lake, and the Onyx River, a meltwater stream and Antarctica's longest river. Although no living organisms have been found in the permafrost here, endolithic photosynthetic bacteria have been found living in the relatively moist interior of rocks, and anaerobic bacteria, with a metabolism based on iron and sulfur, live under the Taylor Glacier. The valleys are located within the McMurdo Valleys Antarc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Vida
Lake Vida is a hypersaline lake in Victoria Valley, the northernmost of the large McMurdo Dry Valleys, on the continent of Antarctica. It is isolated under year-round ice cover, and is considerably more saline than seawater. It came to public attention in 2002 when microbes frozen in its ice cover for more than 2,800 years were successfully thawed and reanimated. Introduction Lake Vida is one of the largest lakes in the McMurdo Dry Valley region and is a closed-basin endorheic lake. The permanent surface ice on the lake is the thickest non-glacial ice on earth, reaching a depth of at least . The ice at depth is saturated with brine that is seven times as saline as seawater. The high salinity allows the brine to remain liquid at an average yearly water temperature of . The ice cap has sealed the saline brine from external air and water for thousands of years creating a time capsule for ancient DNA. This combination of lake features make Lake Vida a unique lacustrine ecosys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victoria University Of Wellington
Victoria University of Wellington ( mi, Te Herenga Waka) is a university in Wellington, New Zealand. It was established in 1897 by Act of Parliament, and was a constituent college of the University of New Zealand. The university is well known for its programmes in law, the humanities, and some scientific disciplines, and offers a broad range of other courses. Entry to all courses at first year is open, and entry to second year in some programmes (e.g. law, criminology, creative writing, architecture, engineering) is restricted. Victoria had the highest average research grade in the New Zealand Government's Performance Based Research Fund exercise in both 2012 and 2018, having been ranked 4th in 2006 and 3rd in 2003. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctic Research Centre
The Antarctic Research Centre (ARC) is part of the School of Geography, Environment and Earth Sciences at Victoria University of Wellington. Its mission is to research "Antarctic climate history and processes, and their influence on the global climate system. The current director of the Antarctic Research Centre is Associate Professor Robert McKay. Directors * 1972 - 2007: Professor Peter Barrett * 2008 - 2016: Professor Tim Naish * 2017 - 2019: Professor Andrew Mackintosh * 2020 - Present: Professor Robert McKay History In December 1957, geology students Barrie McKelvey and Peter Webb along with biologist Ron Balham conducted an expedition to the then unexplored McMurdo Dry Valleys via the Royal New Zealand Navy Antarctic support ship HMNZS ''Endeavour''. This expedition formed the basic for the annual Victoria University of Wellington Antarctic Expeditions, which continue to the present day. Since this first expedition, over 400 staff and students have travelled to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victoria Lower Glacier
Wilson Piedmont Glacier () is a large piedmont glacier extending from Granite Harbour to Marble Point on the coast of Victoria Land. Scheuren Stream takes meltwater from the glacier into the Bay of Sails, while South Stream flows southeastward to Bernacchi Bay. Discovered by the ''Discovery'' expedition, 1901–04. The British Antarctic Expedition, 1910–13, named the feature for Dr. Edward A. Wilson, surgeon and artist with Scott's first expedition and chief of the scientific staff with the second. Wilson lost his life on the way back from the South Pole with Scott. See also *Ball Stream *King Pin King Pin () is a nunatak, high, rising above the Wilson Piedmont Glacier, Antarctica, about midway between Mount Doorly and Hogback Hill. It was named by the Victoria University of Wellington Antarctic Expedition, 1958–59, after the American h ... Glaciers of Scott Coast {{ScottCoast-glacier-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heaphy Spur
Clare Range () is the range extending west-southwest from Sperm Bluff to the Willett Range on the south side of Mackay Glacier Mackay Glacier () is a large glacier in Victoria Land, descending eastward from the Antarctic polar plateau, between the Convoy Range and Clare Range, into the southern part of Granite Harbour. It was discovered by the South Magnetic Pole party o ..., in Victoria Land. It was circumnavigated in 1957 by the New Zealand Northern Survey Party of the Commonwealth Trans-Antarctic Expedition (1956–58), and named by them after Clare College, Cambridge, England. References * Mountain ranges of Victoria Land Scott Coast {{ScottCoast-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaciers Of Victoria Land
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 over many years, often centuries. It acquires distinguishing features, such as crevasses and 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 latitudes 35°N and 35°S, glaciers occur only in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
