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Boydell Glacier
Boydell Glacier () is a glacier on Trinity Peninsula in northern Graham Land. It is about long, flowing southeastward from Detroit Plateau to enter Sjögren Inlet in Prince Gustav Channel north of the terminus of Sjögren Glacier and west of Mount Wild. It was mapped by the Falkland Islands Dependencies Survey from surveys (1960–61), and named by the UK Antarctic Place-Names Committee for James Boydell, English inventor of a steam traction engine, the first practical track-laying vehicle. 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 ... References * External links SCAR Composite Antarctic Gazetteer Glaciers of Trinity Peninsula {{TrinityPeninsula-glacier-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] |
Mount Wild (Graham Land)
Mount Wild () is a sharply defined rock ridge with several summits, the highest 945 m, standing at the north side of the entrance to Sjögren Inlet on the east coast of Trinity Peninsula in Graham Land, Antarctica. First charted by the Falkland Islands Dependencies Survey (FIDS) in 1945 and named for Frank Wild John Robert Francis Wild (18 April 1873 – 19 August 1939), known as Frank Wild, was an English sailor and explorer. He participated in five expeditions to Antarctica during the Heroic Age of Antarctic Exploration, for which he was awar .... References SCAR Composite Antarctic Gazetteer Mountains of Trinity Peninsula {{TrinityPeninsula-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Glaciers In The Antarctic
There are many glaciers in the Antarctic. This set of lists does not include ice sheets, ice caps or ice fields, such as the Antarctic ice sheet, but includes glacial features that are defined by their flow, rather than general bodies of ice. The lists include outlet glaciers, valley glaciers, cirque glaciers, tidewater glaciers and ice streams. Ice streams are a type of glacier and many of them have "glacier" in their name, e.g. Pine Island Glacier. Ice shelves are listed separately in the List of Antarctic ice shelves. For the purposes of these lists, the Antarctic is defined as any latitude further south than 60° (the continental limit according to the Antarctic Treaty System). List by letters * List of glaciers in the Antarctic: A–H * List of glaciers in the Antarctic: I–Z See also * List of Antarctic and subantarctic islands * List of Antarctic ice rises * List of Antarctic ice shelves * List of Antarctic ice streams * List of glaciers * List of subantar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continuous Track
Continuous track is a system of vehicle propulsion used in tracked vehicles, running on a continuous band of treads or track plates driven by two or more wheels. The large surface area of the tracks distributes the weight of the vehicle better than steel or rubber tires on an equivalent vehicle, enabling continuous tracked vehicles to traverse soft ground with less likelihood of becoming stuck due to sinking. Modern continuous tracks can be made with soft belts of synthetic rubber, reinforced with steel wires, in the case of lighter agricultural machinery. The more common classical type is a solid chain track made of steel plates (with or without rubber pads), also called caterpillar tread or tank tread, which is preferred for robust and heavy construction vehicles and military vehicles. The prominent treads of the metal plates are both hard-wearing and damage resistant, especially in comparison to rubber tyres. The aggressive treads of the tracks provide good trac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Traction Engine
A traction engine is a steam-powered tractor used to move heavy loads on roads, plough ground or to provide power at a chosen location. The name derives from the Latin ''tractus'', meaning 'drawn', since the prime function of any traction engine is to draw a load behind it. They are sometimes called road locomotives to distinguish them from railway locomotives – that is, steam engines that run on rails. Traction engines tend to be large, robust and powerful, but also heavy, slow, and difficult to manoeuvre. Nevertheless, they revolutionized agriculture and road haulage at a time when the only alternative prime mover was the draught horse. They became popular in industrialised countries from around 1850, when the first self-propelled portable steam engines for agricultural use were developed. Production continued well into the early part of the 20th century, when competition from internal combustion engine-powered tractors saw them fall out of favour, although some continue ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Boydell
James Boydell (died January 1860) was a British inventor of steam traction engines. His most significant invention was the first practical track-laying vehicle, for which he received British patents in August 1846 and February 1854. Description Boydell described his invention as "endless rails" or an "endless railway wheel", later variations became known as Dreadnaught Wheels. In his system flat boards were attached to a wheel loosely at their centres. As the wheels revolved, they were capable of spreading the weight of an engine over the surface of the board. Boydell worked with the steam traction engine manufacturer Charles Burrell & Sons to produce road haulage engines from 1856 that used his continuous track design. Lane (1971), p. 23 Boydell Glacier The United Kingdom Antarctic Place-Names Committee named Boydell Glacier on Trinity Peninsula in northern Graham Land, Antarctica, after him. See also * Bramah Joseph Diplock * Pedrail wheel The pedrail wheel is a type o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UK Antarctic Place-Names Committee
The UK Antarctic Place-Names Committee (or UK-APC) is a United Kingdom government committee, part of the Foreign and Commonwealth Office, responsible for recommending names of geographical locations within the British Antarctic Territory (BAT) and the South Georgia and the South Sandwich Islands (SGSSI). Such names are formally approved by the Commissioners of the BAT and SGSSI respectively, and published in the BAT Gazetteer and the SGSSI Gazetteer maintained by the Committee. The BAT names are also published in the international Composite Gazetteer of Antarctica maintained by Scientific Committee on Antarctic Research, SCAR. The Committee may also consider proposals for new place names for geographical features in areas of Antarctica outside BAT and SGSSI, which are referred to other Antarctic place-naming authorities, or decided by the Committee itself if situated in the unclaimed sector of Antarctica. Names attributed by the committee * Anvil Crag, named for descriptive featu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Falkland Islands Dependencies Survey
The British Antarctic Survey (BAS) is the United Kingdom's national polar research institute. It has a dual purpose, to conduct polar science, enabling better understanding of global issues, and to provide an active presence in the Antarctic on behalf of the UK. It is part of the Natural Environment Research Council (NERC). With over 400 staff, BAS takes an active role in Antarctic affairs, operating five research stations, one ship and five aircraft in both polar regions, as well as addressing key global and regional issues. This involves joint research projects with over 40 UK universities and more than 120 national and international collaborations. Having taken shape from activities during World War II, it was known as the Falkland Islands Dependencies Survey until 1962. History Operation Tabarin was a small British expedition in 1943 to establish permanently occupied bases in the Antarctic. It was a joint undertaking by the Admiralty and the Colonial Office. At the end of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sjögren Glacier
Sjogren Glacier () is a glacier long in the south part of Trinity Peninsula, flowing southeast from Detroit Plateau in between Aldomir Ridge and Hazarbasanov Ridge to enter Prince Gustav Channel at the head of Sjögren Inlet, west of Royak Point. Discovered in 1903 by the Swedish Antarctic Expedition under Nordenskjold. He named it Sjogren Fiord after a patron of the expedition. The true nature of the feature was determined by the Falkland Islands Dependencies Survey (FIDS) in 1945. Sjogren Glacier Tongue () was a tongue of ice between wide, extending from Sjogren Glacier across Prince Gustav Channel toward Persson Island. Mapped from surveys by Falkland Islands Dependencies Survey (FIDS) (1960–61). The glacier tongue was an extension of the flow of Sjogren Glacier from which it took its name. As a result of glacier withdrawal, it has disappeared since at least 1994, with its area now covered by the Prince Gustav Channel. See also * List of glaciers in the Antarctic * ... [...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] |
Glacier Terminus
A glacier terminus, toe, or snout, is the end of a glacier at any given point in time. Although glaciers seem motionless to the observer, in reality glaciers are in endless motion and the glacier terminus is always either advancing or retreating. The location of the terminus is often directly related to glacier mass balance, which is based on the amount of snowfall which occurs in the accumulation zone of a glacier, as compared to the amount that is melted in the ablation zone. The position of a glacier terminus is also impacted by localized or regional temperature change over time. Tracking Tracking the change in location of a glacier terminus is a method of monitoring a glacier's movement. The end of the glacier terminus is measured from a fixed position in neighboring bedrock periodically over time. The difference in location of a glacier terminus as measured from this fixed position at different time intervals provides a record of the glacier's change. A similar way of trac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prince Gustav Channel
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 Ic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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