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Blackwall Ice Stream
Blackwall Ice Stream () is a slightly S-shaped Antarctic ice stream about long and wide. It descends from about to where it joins Recovery Glacier between the Argentina Range and the Whichaway Nunataks. It was named after Hugh Blackwall Evans (1874–1975), an English-born Canadian naturalist with the British Antarctic Expedition, 1898–1900 The ''Southern Cross'' Expedition, otherwise known as the British Antarctic Expedition, 1898–1900, was the first British venture of the Heroic Age of Antarctic Exploration, and the forerunner of the more celebrated journeys of Robert Falcon Sc ..., led by Carsten E. Borchgrevink. References Ice streams of Antarctica Bodies of ice of Coats Land {{CoatsLand-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 ve ... [...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 st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recovery Glacier
The Recovery Glacier () is a glacier flowing west along the southern side of the Shackleton Range in Antarctica. First seen from the air and examined from the ground by the Commonwealth Trans-Antarctic Expedition in 1957, it was so named because of the recovery of the expedition's vehicles which repeatedly broke into bridged crevasses on this glacier during the early stages of the crossing of Antarctica. It is at least 100 km (60 mi) long and 64 km (40 mi) wide at its mouth. Dana Floricioiu and Irena Hajnsek of the German Aerospace Centre spoke on the radar data showing the interior of the Recovery Glacier at the IEEE Geoscience and Remote Sensing Symposium in Cape Town, South Africa, in July 2009. The data comes from the German public-private satellite Terrasar-X and when combined with Radarsat-1 shows the changes in the glacier over 11 years. The Recovery Ice Stream that drains part of the East Antarctic Ice Sheet into the glacier is nearly long and feeds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argentina Range
The Argentina Range is a mountain range of rock peaks and bluffs, long, lying east of the northern part of Forrestal Range in the northeastern portion of the Pensacola Mountains of Antarctica. Discovered and photographed on January 13, 1956, in the course of a US Navy transcontinental nonstop plane flight from McMurdo Sound to Weddell Sea and return. Named by the Advisory Committee on Antarctic Names after Argentina, which for many years from 1955 maintained a scientific station on the Filchner Ice Shelf at the General Belgrano or Ellsworth Station site. The entire Pensacola Mountains were mapped by United States Geological Survey in 1967 and 1968 from ground surveys and from US Navy tricameral photographs taken in 1964. Features Geographical features include: Schneider Hills Panzarini Hills Other features * Blackwall Ice Stream * Recovery Glacier * San Martín Glacier * Support Force Glacier * Whichaway Nunataks Further reading * Gunter Faure, Teresa M. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whichaway Nunataks
Whichaway Nunataks () is a group of rocky nunataks extending for 7 nautical miles (13 km) and marking the south side of the mouth of Recovery Glacier. First seen from the air and visited in 1957 by the Commonwealth Trans-Antarctic Expedition and so named because it was uncertain which route from the nunataks would lead furthest inland. The Blackwall Ice Stream joins Recovery Glacier between the Argentina Range The Argentina Range is a mountain range of rock peaks and bluffs, long, lying east of the northern part of Forrestal Range in the northeastern portion of the Pensacola Mountains of Antarctica. Discovered and photographed on January 13, 1956, in t ... and the Whichaway Nunataks. Nunataks of Coats Land {{CoatsLand-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hugh Blackwall Evans
Hugh may refer to: * Hugh (given name) Noblemen and clergy French * Hugh the Great (died 956), Duke of the Franks * Hugh Magnus of France (1007–1025), co-King of France under his father, Robert II * Hugh, Duke of Alsace (died 895), modern-day France * Hugh of Austrasia (7th century), Mayor of the Palace of Austrasia * Hugh I, Count of Angoulême (1183–1249) * Hugh II, Count of Angoulême (1221–1250) * Hugh III, Count of Angoulême (13th century) * Hugh IV, Count of Angoulême (1259–1303) * Hugh, Bishop of Avranches (11th century), France * Hugh I, Count of Blois (died 1248) * Hugh II, Count of Blois (died 1307) * Hugh of Brienne (1240–1296), Count of the medieval French County of Brienne * Hugh, Duke of Burgundy (d. 952) * Hugh I, Duke of Burgundy (1057–1093) * Hugh II, Duke of Burgundy (1084–1143) * Hugh III, Duke of Burgundy (1142–1192) * Hugh IV, Duke of Burgundy (1213–1272) * Hugh V, Duke of Burgundy (1294–1315) * Hugh Capet (939–996), King of Fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Antarctic Expedition, 1898–1900
The ''Southern Cross'' Expedition, otherwise known as the British Antarctic Expedition, 1898–1900, was the first British venture of the Heroic Age of Antarctic Exploration, and the forerunner of the more celebrated journeys of Robert Falcon Scott and Ernest Shackleton. The brainchild of the Anglo-Norwegian explorer Carsten Borchgrevink, it was the first expedition to over-winter on the Antarctic mainland, the first to visit the Great Ice Barrier—later known as the Ross Ice Shelf—since Sir James Clark Ross's groundbreaking expedition of 1839 to 1843, and the first to effect a landing on the Barrier's surface. It also pioneered the use of dogs and sledges in Antarctic travel. The expedition was privately financed by the British magazine publisher Sir George Newnes. Borchgrevink's party sailed in the , and spent the southern winter of 1899 at Cape Adare, the northwest extremity of the Ross Sea coastline. Here they carried out an extensive programme of scientific observations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carsten E
Karsten or Carsten is a both a given name and a surname. It is believed to be either derived from a Low German form of Christian, or "man from karst". Notable persons with the name include: Given name ;Carsten: * Carsten Charles Sabathia (born 1980), Former baseball player most famous for being a New York Yankee * Carsten Niebuhr (1733–1815), German mathematician, cartographer, and explorer in the service of Denmark * Carsten Pohl (born 1965), German basketball coach ;Karsten: * Karsten Alnæs (born 1938), Norwegian author, historian, and journalist * Karsten Andersen (1920–1997), Norwegian conductor * Big Daddy Karsten (born 1989), 2017 Eurovision Jury List; Norwegian Pre-select for Eurovision (Melodi Grand Prix 2021) * Karsten Buer (1913–1993), Norwegian harness coach * Karsten Fonstad (1900–1970), Norwegian politician * Karsten Forsterling (born 1980), Australian rower * Karsten Isachsen (1944–2016), Norwegian Lutheran priest, essayist and public speaker * Karsten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 The Scientific Committee on Antarctic Research (SCAR) is an interdisciplinary body of the International Science Council (ISC). SCAR coordinates international scientific research efforts in Antarctica, including the Southern Ocean. SCAR's scien ..., 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 {{authority control * Ice streams ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
