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Tressler Bank
Tressler Bank () is a submarine bank with a least depth of 56 fathoms, extending from about 94 to 96E in the eastern part of the Davis Sea. The bank was sounded by the USS Burton Island and Willis L. Tressler of the U.S. Navy Hydrographic Office. Tressler carried on oceanographic studies in the Antarctic aboard the USS Tressler and was a scientific leader at Wilkes Station Wilkes Station was an Antarctic research station established 29 January 1957 by the United States as one of seven U.S. stations established for the International Geophysical Year (IGY) program in Antarctica. It was taken over by Australia on ... in 1958. References Undersea banks of the Southern Ocean {{marine-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submerged Bank
An ocean bank, sometimes referred to as a fishing bank or simply bank, is a part of the seabed that is shallow compared to its surrounding area, such as a shoal or the top of an seamount, underwater hill. Somewhat like continental margin, continental slopes, ocean bank slopes can upwelling, upwell as Tide#Current, tidal and other flows intercept them, sometimes resulting in nutrient-rich currents. Because of this, some large banks, such as Dogger Bank and the Grand Banks of Newfoundland, are among the richest fishing grounds in the world. There are some banks that were reported in the 19th century by navigators, such as Wachusett Reef, whose existence is doubtful. Types Ocean banks may be of volcano, volcanic nature. Banks may be Carbonate platform, carbonate or Continental shelf#Sediments, terrigenous. In tropical areas some banks are submerged atolls. As they are not associated with any landmass, banks have no outside source of sediments. Carbonate banks are typically platfo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Ocean
The Southern Ocean, also known as the Antarctic Ocean, comprises the southernmost waters of the world ocean, generally taken to be south of 60th parallel south, 60° S latitude and encircling Antarctica. With a size of , it is the second-smallest of the five principal oceanic divisions, smaller than the Pacific Ocean, Pacific, Atlantic Ocean, Atlantic and Indian Ocean, Indian oceans, and larger than the Arctic Ocean. The maximum depth of the Southern Ocean, using the definition that it lies south of 60th parallel, was surveyed by the Five Deeps Expedition in early February 2019. The expedition's multibeam sonar team identified the deepest point at 60° 28' 46"S, 025° 32' 32"W, with a depth of . The expedition leader and chief submersible pilot Victor Vescovo, has proposed naming this deepest point the "Factorian Deep", based on the name of the crewed submersible ''DSV Limiting Factor'', in which he successfully visited the bottom for the first time on February 3, 2019 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine Bank
An ocean bank, sometimes referred to as a fishing bank or simply bank, is a part of the seabed that is shallow compared to its surrounding area, such as a shoal or the top of an underwater hill. Somewhat like continental slopes, ocean bank slopes can upwell as tidal and other flows intercept them, sometimes resulting in nutrient-rich currents. Because of this, some large banks, such as Dogger Bank and the Grand Banks of Newfoundland, are among the richest fishing grounds in the world. There are some banks that were reported in the 19th century by navigators, such as Wachusett Reef, whose existence is doubtful. Types Ocean banks may be of volcanic nature. Banks may be carbonate or terrigenous. In tropical areas some banks are submerged atolls. As they are not associated with any landmass, banks have no outside source of sediments. Carbonate banks are typically platforms, rising from the ocean depths, whereas terrigenous banks are elevated sedimentary deposits. Seamounts, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Davis Sea
Davis Sea is an area of the sea along the coast of East Antarctica between West Ice Shelf in the west and the Shackleton Ice Shelf in the east, or between 82° and 96°E. The name "Davis Sea" appears in most leading geographically authoritative publications such as the 2014 10th edition World Atlas from the National Geographic Society and the 2014 12th edition of the '' Times Atlas of the World'', unlike neighboring proposed water body names such as the Russian-proposed Cooperation Sea to the west. According to the ''Great Soviet Encyclopedia'', it stretches from 87°E to 98°E, and is up to deep. Its area is given as only . Other authorities such as National Geographic assign it a much smaller extent. The sea borders the Leopold and Astrid Coast portion of Princess Elizabeth Land, then Kaiser Wilhelm II Land, Pravda Coast and Queen Mary Land. The never-approved 2002 draft fourth edition of '' Limits of Oceans and Seas'' identifies that the Tryoshnikova Gulf (named afte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burton Island
USS ''Burton Island'' (AG-88) was a United States Navy Wind-class icebreaker that was later recommissioned in the United States Coast Guard as the USCGC ''Burton Island'' (WAGB-283). She was named after an island near the coast of Delaware. Construction ''Burton Island'' was one of the icebreakers designed by Lt Cdr Edward Thiele and Gibbs & Cox of New York, who modeled them after plans for European icebreakers he obtained before the start of World War II. She was the sixth of seven completed ships of the Wind-class of icebreakers operated by the United States Coast Guard. Her keel was laid on 15 March 1946 at Western Pipe and Steel Company shipyards in San Pedro, California, she was launched on 30 April 1946, and commissioned on 28 December 1946 with Commander Gerald L. Ketchum in command. Wind-class icebreakers had hulls of unprecedented strength and structural integrity, with a relatively short length in proportion to the great power developed, a cut away forefoot, round ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilkes Station
Wilkes Station was an Antarctic research station established 29 January 1957 by the United States as one of seven U.S. stations established for the International Geophysical Year (IGY) program in Antarctica. It was taken over by Australia on 7 February 1959. Environmental difficulties at this site lead to it being abandoned in 1969, with the Australians establishing a new base, Casey Station. History Wilkes Station was named after Charles Wilkes, a 19th-century American explorer who discovered the phenomenon of the continental margin, which helped prove that Antarctica was a continent. Wilkes was one of seven bases that the United States built for the IGY, which also included McMurdo, Hallett, Admundsen-Scott (South Pole Station), Ellsworth, Byrd, and Little America. Of these only McMurdo and Admundsen-Scott are still operated by the 21st century. Personnel from the United States Navy constructed the main part of Wilkes in a period of 16 days in January and February 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
