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Extreme Points Of The Antarctic
This is a list of extreme points in Antarctica. List * The tallest mountain in Antarctica is Vinson Massif rising 4,892 meters (16,050 feet) above sea level. * The lowest point in Antarctica is within the Denman Glacier, which reaches 3.5 kilometers (11,500 feet) below sea level. This is also the lowest place on Earth not covered by ocean (although it is covered by ice). * The lowest accessible point in Antarctica is the shore of Deep Lake, Vestfold Hills, which is 50.4 m beneath sea level. * The point on land farthest from any coastline on the Antarctic Continent is located at . This is also known as the South Pole of inaccessibility. * Antarctica is the southernmost land mass on Earth. The Geographical South Pole lies on the Polar Plateau at . It is here that the southernmost human habitation on Earth is located: Amundsen–Scott South Pole Station (U.S. Administered Base). * Vostok Station is the most isolated research base on the continent (located at ), and it is situated ov ... [...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] |
Berkner Island
Berkner Island (also known as the Berkner Ice Rise or as Hubley Island) is an Antarctic ice rise, where bedrock below sea level has caused the surrounding ice sheet to create a dome. If the ice cap were removed, the island would be underwater. Berkner Island is completely ice-covered and is about long and wide, with an area of . It is surrounded by the Filchner-Ronne Ice Shelf. The northernmost point of the Berkner is about from the open sea. It lies in the overlapping portion of the Argentine and the British Antarctic territorial claims. The island rises to ( according to other sources) and separates the Ronne Ice Shelf from the Filchner Ice Shelf. It is characterized by two domes, ''Reinwarthhöhe'' in the north (), and ''Thyssenhöhe'' in the south (). It is indented by three bays on the eastern side, which are, from north to south, the McCarthy Inlet, the Roberts Inlet, and the Spilhaus Inlet. The southern tip is named the Mulvaney Promontory. Gould Bay is on th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Esperanza Base
("Permanence, an act of sacrifice") , pushpin_map = Antarctica , pushpin_map_alt = Location of Esperanza Base in Antarctica , pushpin_map_caption = Location of Esperanza Base in Antarctica , pushpin_mapsize = 300 , pushpin_relief = yes , coordinates = , subdivision_type = Country , subdivision_name = , subdivision_type1 = Region , subdivision_name1 = , subdivision_type2 = Location , subdivision_name2 = , subdivision_type3 = Administered by , subdivision_name3 = Argentine Antarctic Institute (under the supervision of the Argentine National Antarctic Directorate) , established_title = Established , established_date = , named_for = es, Base Esperanza ("Hope Base") , area_urban_footnotes = , area_magnitude = , area_urban_ha = 0.3744 , elevation_m = 25 , leader_title = , leade ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Horn
Cape Horn ( es, Cabo de Hornos, ) is the southernmost headland of the Tierra del Fuego archipelago of southern Chile, and is located on the small Hornos Island. Although not the most southerly point of South America (which are the Diego Ramírez Islands), Cape Horn marks the northern boundary of the Drake Passage and marks where the Atlantic and Pacific Oceans meet. Cape Horn was identified by mariners and first rounded in 1616 by the Dutchman Willem Schouten and Jacob Le Maire, who named it after the city of Hoorn in the Netherlands. For decades, Cape Horn was a major milestone on the clipper route, by which sailing ships carried trade around the world. The waters around Cape Horn are particularly hazardous, owing to strong winds, large waves, strong currents and icebergs. The need for boats and ships to round Cape Horn was greatly reduced by the opening of the Panama Canal in August 1914. Sailing around Cape Horn is still widely regarded as one of the major challenges in y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctic Circle
The Antarctic Circle is the most southerly of the five major circles of latitude that mark maps of Earth. The region south of this circle is known as the Antarctic, and the zone immediately to the north is called the Southern Temperate Zone. South of the Antarctic Circle, the Sun is above the horizon for 24 continuous hours at least once per year (and therefore visible at midnight) and the centre of the Sun (ignoring refraction) is below the horizon for 24 continuous hours at least once per year (and therefore not visible at noon); this is also true within the equivalent polar circle in the Northern Hemisphere, the Arctic Circle. The position of the Antarctic Circle is not fixed and currently runs south of the Equator. This figure may be slightly inaccurate because it does not allow for the effects of astronomical nutation, which can be up to 10″. Its latitude depends on the Earth's axial tilt, which fluctuates within a margin of more than 2° over a 41,000-year period, due ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trinity Peninsula
Trinity Peninsula is the northernmost part of the Antarctic Peninsula. It extends northeastward for about 130 km (80 mi) to Cape Dubouzet from an imaginary line connecting Cape Kater on the north-west coast and Cape Longing on the south-east coast. Prime Head is the northernmost point of this peninsula. Some 20 kilometers southeast of Prime Head is Hope Bay with the year-round Argentinian Esperanza Base. History It was first sighted on 30 January 1820 by Edward Bransfield, Master, Royal Navy, immediately after his charting of the newly discovered South Shetland Islands nearby. In the century following the peninsula's discovery, chartmakers used various names (Trinity Land, Palmer Land, and Land of Louis Philippe) for this portion of it, each name having some historical merit. The recommended name derives from "Trinity Land", given by Bransfield during 1820 in likely recognition of the Corporation of Trinity House, Britain's historical maritime pilotage authority, altho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prime Head
A prime number (or a prime) is a natural number greater than 1 that is not a Product (mathematics), product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime because the only ways of writing it as a product, or , involve 5 itself. However, 4 is composite because it is a product (2 × 2) in which both numbers are smaller than 4. Primes are central in number theory because of the fundamental theorem of arithmetic: every natural number greater than 1 is either a prime itself or can be factorization, factorized as a product of primes that is unique up to their order. The property of being prime is called primality. A simple but slow method of checking the primality of a given number n, called trial division, tests whether n is a multiple of any integer between 2 and \sqrt. Faster algorithms include the Miller–Rabin primality test, which is fast but has a small chance of error, and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bay Of Whales
The Bay of Whales was a natural ice harbour, or iceport, indenting the front of the Ross Ice Shelf just north of Roosevelt Island, Antarctica. It is the southernmost point of open ocean not only of the Ross Sea, but worldwide. The Ross Sea extends much further south – as far as the Gould Coast, some from the South Pole – but most of that area is covered by the Ross Ice Shelf rather than open sea. Discovery and naming Ernest Shackleton named the feature on January 24, 1908, during the Nimrod Expedition, because of the large number of whales seen near this location. History During his quest for the South Pole, Norwegian explorer Roald Amundsen established a temporary base, which he named Framheim, at the Bay of Whales. The base was used between January 1911February 1912, and was named after Amundsen's ship ''Fram''. The Bay of Whales has also served as a logistical support base for several other important Antarctic expeditions, including: * 1928–1930: Richard Evelyn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ross Ice Shelf
The Ross Ice Shelf is the largest ice shelf of Antarctica (, an area of roughly and about across: about the size of France). It is several hundred metres thick. The nearly vertical ice front to the open sea is more than long, and between high above the water surface. Ninety percent of the floating ice, however, is below the water surface. Most of Ross Ice Shelf is in the Ross Dependency claimed by New Zealand. It floats in, and covers, a large southern portion of the Ross Sea and the entire Roosevelt Island located in the east of the Ross Sea. The ice shelf is named after Sir James Clark Ross, who discovered it on 28 January 1841. It was originally called "The Barrier", with various adjectives including "Great Ice Barrier", as it prevented sailing further south. Ross mapped the ice front eastward to 160° W. In 1947, the U.S. Board on Geographic Names applied the name "Ross Shelf Ice" to this feature and published it in the original U.S. Antarctic Gazetteer. In Januar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horlick Mountains
The Horlick Mountains are a mountain range in the Transantarctic Mountains of Antarctica. Some sources indicate that the designation includes the Ohio Range, the Long Hills, and all of the Wisconsin Range, while others suggest that it includes only the eastern portion of the Queen Maud Mountains and the main body of the Wisconsin Range. At one point the designation also included the Thiel Mountains. The mountains were discovered in two observations by the Byrd Antarctic Expedition, 1933–35, one by Kennett L. Rawson from a position in about , at the end of his southeastern flight of November 22, 1934, and another by Quin Blackburn in December 1934, from positions looking up Leverett and Albanus Glaciers. Portions of the Wisconsin Range are recorded in aerial photography obtained by USN Operation Highjump, 1946–47. The entire mountain group was surveyed by USARP parties and was mapped from U.S. Navy aerial photographs, 1959–64. Named by Admiral Richard E. Byrd for Will ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amundsen Coast
Amundsen Coast is that portion of the coast to the south of the Ross Ice Shelf lying between Morris Peak, on the east side of Liv Glacier, and the west side of the Scott Glacier. Named by New Zealand Antarctic Place-Names Committee in 1961 for Captain Roald Amundsen, the Norwegian explorer who led his own expedition in 1910–12 to the Antarctic. Setting up a base at Framheim at the edge of the Ross Ice Shelf, he sledged southward across the shelf and discovered a route up the Axel Heiberg Glacier along this coast to reach the polar plateau. He was the first to reach the South Pole The South Pole, also known as the Geographic South Pole, Terrestrial South Pole or 90th Parallel South, is one of the two points where Earth's axis of rotation intersects its surface. It is the southernmost point on Earth and lies antipod ..., December 14, 1911. References * Coasts of the Ross Dependency {{RossDependency-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ross Sea
The Ross Sea is a deep bay of the Southern Ocean in Antarctica, between Victoria Land and Marie Byrd Land and within the Ross Embayment, and is the southernmost sea on Earth. It derives its name from the British explorer James Clark Ross who visited this area in 1841. To the west of the sea lies Ross Island and Victoria Land, to the east Roosevelt Island and Edward VII Peninsula in Marie Byrd Land, while the southernmost part is covered by the Ross Ice Shelf, and is about from the South Pole. Its boundaries and area have been defined by the New Zealand National Institute of Water and Atmospheric Research as having an area of . The circulation of the Ross Sea is dominated by a wind-driven ocean gyre and the flow is strongly influenced by three submarine ridges that run from southwest to northeast. The circumpolar deep water current is a relatively warm, salty and nutrient-rich water mass that flows onto the continental shelf at certain locations. The Ross Sea is covered with ice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
