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Red Island (Antarctica)
The Prince Gustav Channel was named in 1903 after Crown Prince Gustav of Sweden (later King Gustav V) by Otto Nordenskiöld of the Swedish Antarctic Expedition. The channel is bounded on the west by the Antarctic Peninsula and on the east by James Ross Island. It is about long and ranges from wide. On 27 February 1995, the British Antarctic Survey (BAS) reported that an ice shelf formerly blocking the channel had disintegrated. This ice shelf had spanned approximately prior to its disintegration. In the area previously covered by the shelf, the channel's water depth is between . Between February and March 2000, scientists collected sediment cores 5 to 6 m in length from the ocean floor. Carbon dating of organic material found in the sediment layers suggested that for a period between 2,000 and 5,000 years ago, much of the channel was seasonally open water. While icebergs were able to navigate the channel, ice rafted debris was deposited within the sediment. Prince Gustav Ice ... [...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] |
Global Warming
In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to Earth's climate. The current rise in global average temperature is more rapid than previous changes, and is primarily caused by humans burning fossil fuels. Fossil fuel use, deforestation, and some agricultural and industrial practices increase greenhouse gases, notably carbon dioxide and methane. Greenhouse gases absorb some of the heat that the Earth radiates after it warms from sunlight. Larger amounts of these gases trap more heat in Earth's lower atmosphere, causing global warming. Due to climate change, deserts are expanding, while heat waves and wildfires are becoming more common. Increased warming in the Arctic has contributed to melting permafrost, glacial retreat and sea ice loss. Higher temperatures are also causing m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Channels Of The Southern Ocean
Channel, channels, channeling, etc., may refer to: Geography * Channel (geography), in physical geography, a landform consisting of the outline (banks) of the path of a narrow body of water. Australia * Channel Country, region of outback Australia in Queensland and partly in South Australia, Northern Territory and New South Wales. * Channel Highway, a regional highway in Tasmania, Australia. Europe * Channel Islands, an archipelago in the English Channel, off the French coast of Normandy * Channel Tunnel or Chunnel, a rail tunnel underneath the English Channel * English Channel, called simply "The Channel", the part of the Atlantic Ocean that separates Great Britain from northern France North America * Channel Islands of California, a chain of eight islands located in the Pacific Ocean off the coast of Southern California, United States * Channel Lake, Illinois, a census-designated place in Lake County, Illinois, United States * Channels State Forest, a state forest in Virginia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctic Field Camps
Many Antarctic research stations support satellite field camps which are, in general, seasonal camps. The type of field camp can vary – some are permanent structures used during the annual Antarctic summer, whereas others are little more than tents used to support short term activities. Field camps are used for many things, from logistics (Sky Blu) to dedicated scientific research (WAIS Divide Field Camp). List of field camps See also *Research stations in Antarctica *Demographics of Antarctica *List of Antarctic expeditions This list of Antarctic expeditions is a chronological list of expeditions involving Antarctica. Although the existence of a southern continent had been hypothesized as early as the writings of Ptolemy in the 1st century AD, the South Pole was no ... * Transport in Antarctica References External links COMNAP Antarctic Facilities() COMNAP Antarctic Facilities Map() Antarctic Digital Database Map ViewerSCAR {{Polar exploration Field ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argentine Antarctic Program
Argentina was one of the twelve original signatories of the Antarctic Treaty which was signed on December 1, 1959, and came in force on 21 June 1961. Argentina's scientific activities started at the beginning of the twentieth century when an Argentine named José María Sobral joined the Swedish South Polar Expedition (1901–1904) commanded by Otto Nordenskjold, which wintered two years in Antarctica. In 1904, W. S. Bruce, leader of the Scottish National Antarctic Expedition, turned over to Argentina the meteorological and geomagnetic observatory on Laurie Island, South Orkney Island which had been established in the previous year. Since then the observatory has been run by Argentina and is the location of the Orcadas Station. It claims to be the first permanent facility south of 60° Southern latitude. The Argentine Antarctic Program is composed of several organizations forming the highest levels of the National Government. Logistics are provided by the Argentine Army, under the ... [...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] |
Argentine Army
The Argentine Army ( es, Ejército Argentino, EA) is the land force branch of the Armed Forces of the Argentine Republic and the senior military service of Argentina. Under the Argentine Constitution, the president of Argentina is the commander-in-chief of the Armed Forces, exercising his or her command authority through the Minister of Defense. The Army's official foundation date is May 29, 1810 (celebrated in Argentina as the ''Army Day''), four days after the Spanish colonial administration in Buenos Aires was overthrown. The new national army was formed out of several pre-existing colonial militia units and locally manned regiments; most notably the Infantry Regiment "Patricios", which to this date is still an active unit. , the active element of the Argentine Army numbered some 70,600 military personnel. History Several armed expeditions were sent to the Upper Peru (now Bolivia), Paraguay, Uruguay and Chile to fight Spanish forces and secure Argentina's newly gain ... [...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] |
Prince Gustav Ice Shelf
Prince Gustav Ice Shelf () was an ice shelf of more than 15 nautical miles (28 km) extent occupying the south part of Prince Gustav Channel, including Rohss Bay, James Ross Island. Named by United Kingdom Antarctic Place-Names Committee (UK-APC) in 1990 in association with the channel. The ice shelf has since retreated and collapsed; in 1995 Prince Gustav Channel was open throughout its length, and only a remnant in Rohss Bay remained. Prince Gustav ice shelf also retreated in the mid-Holocene period 5000 to 2000 years before present, his"corresponds to regional climate warming deduced from other paleoenvironmental records."Carol J. Pudsey, Jeffrey Evans; First survey of Antarctic sub–ice shelf sediments reveals mid-Holocene ice shelf retreat. Geology ; 29 (9): 787–790. doi: https://doi.org/10.1130/0091-7613(2001)0292.0.CO;2 This resulted in seasonally open water in the Prince Gustav Channel The Prince Gustav Channel was named in 1903 after Crown Prince Gustav of Sweden (l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gustav V Of Sweden
Gustaf V (Oscar Gustaf Adolf; 16 June 1858 – 29 October 1950) was King of Sweden from 8 December 1907 until his death in 1950. He was the eldest son of King Oscar II of Sweden and Sophia of Nassau, a half-sister of Adolphe, Grand Duke of Luxembourg. Reigning from the death of his father Oscar II in 1907 to his own death nearly 43 years later, he holds the record of being the oldest monarch of Sweden and the third-longest rule, after Magnus IV (1319–1364) and Carl XVI Gustaf (1973–present). He was also the last Swedish monarch to exercise his royal prerogatives, which largely died with him, although they were formally abolished only with the remaking of the Swedish constitution in 1974. He was the first Swedish king since the High Middle Ages not to have a coronation and so never wore the king's crown, a practice that has continued ever since. Gustaf's early reign saw the rise of parliamentary rule in Sweden although the leadup to World War I induced his dismissal of Lib ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Rafted Debris
Ice rafting is the transport of various materials by ice. Various objects deposited on ice may eventually become embedded in the ice. When the ice melts after a certain amount of drifting, these objects are deposited onto the bottom of the water body, e.g., onto a river bed or an ocean floor. These deposits are called ice rafted debris (IRD) or ice rafted deposits. Ice rafting was a primary mechanism of sediment transport during glacial episodes of the Pleistocene when sea levels were very low and much of the land was covered by large masses (sheets) of ice. The rafting of various size sediments into deeper ocean waters by icebergs became a rather important process. Ice rafting is still a process occurring today, although its impact is significantly less and much harder to gauge. The melting of large icebergs deposits sediment of various sizes, usually referred to as glacial marine sediment, onto the shelf and deeper marine areas. Ice rafting may be used for analysis of ice drif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Shelf
An ice shelf is a large floating platform of ice that forms where a glacier or ice sheet flows down to a coastline and onto the ocean surface. Ice shelves are only found in Antarctica, Greenland, Northern Canada, and the Russian Arctic. The boundary between the floating ice shelf and the anchor ice (resting on bedrock) that feeds it is the grounding line. The thickness of ice shelves can range from about to . In contrast, sea ice is formed on water, is much thinner (typically less than ), and forms throughout the Arctic Ocean. It is also found in the Southern Ocean around the continent of Antarctica. The movement of ice shelves is principally driven by gravity-induced pressure from the grounded ice. That flow continually moves ice from the grounding line to the seaward front of the shelf. In steady state, about half of Antarctica's ice shelf mass is lost to basal melt and half is lost to calving, but the relative importance of each process varies significantly between ice s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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