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Lyon Nunataks
The Lyon Nunataks () are a group of nunataks lying west of the Grossman Nunataks and northwest of the Behrendt Mountains, in Ellsworth Land, Antarctica. They include Grossenbacher Nunatak, Holtet Nunatak] Christoph Nunatak and Isakson Nunatak. Location The Lyon Nunataks are in eastern Ellsworth Land to the northwest of the Merrick Mountains and north-northwest of the Behrendt Mountains, They are southwest of the Yee Nunataks. They are west of the Grossman Nunataks. Features, from west to east, include Grossenbacher Nunatak, Holtet Nunatak, Christoph Nunatak and Isakson Nunatak. Foltz Nunatak, Schwartz Peak and Marshall Nunatak are to the northwest, Mount Rex and Henkle Peak are to the west. Mapping and name The Lyon Nunataks were mapped by the United States Geological Survey (USGS) from surveys and United States Navy air photographs, 1961–67. They were named by the United States Advisory Committee on Antarctic Names (US-ACAN) after Owen R. Lyon, hospital corpsman, Unite ... [...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] |
United States Geological Survey
The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization's work spans the disciplines of biology, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility. The agency was founded on March 3, 1879. The USGS is a bureau of the United States Department of the Interior; it is that department's sole scientific agency. The USGS employs approximately 8,670 people and is headquartered in Reston, Virginia. The USGS also has major offices near Lakewood, Colorado, at the Denver Federal Center, and Menlo Park, California. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous slogan, adopted on the occasion of its hundredt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ronne Antarctic Research Expedition
The Ronne Antarctic Research Expedition (RARE) was an expedition from 1947–1948 which researched the area surrounding the head of the Weddell Sea in Antarctica. Background Finn Ronne led the RARE which was the final privately sponsored expedition from the United States and explored and mapped the last unknown coastline on earth and determined that the Weddell Sea and the Ross Sea were not connected. The expedition included Isaac Schlossbach, as second in command, who was to have Cape Schlossbach named after him. The expedition, based out of Stonington Island was the first to take women to over-winter. Ronne's wife, Edith Ronne was correspondent for the North American Newspaper Alliance for expedition and the chief pilot Darlington took his wife. Partial Listing of Discoveries * Mount Abrams - Named for Talbert Abrams, noted photogrammetric engineer * Mount Becker - Named for Ralph A. Becker, legal counsel who assisted in the formation of RARE * Mount Brundage - Named ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FitzGerald Bluffs
The FitzGerald Bluffs () are prominent north-facing bluffs, long, located south of the Snow Nunataks in Palmer Land, Antarctica. They were discovered by the Ronne Antarctic Research Expedition (1947–48) under Finn Ronne, who named the bluffs after Gerald FitzGerald, Chief Topographic Engineer with the United States Geological Survey, 1947–57. See also *O'Neill Peak O'Neill Peak () is the highest point (about 850 m) of FitzGerald Bluffs, on the English Coast, Palmer Land. Following geological work in the area by a United States Geological Survey (USGS) field party in December 1984, named by Advisory Committee ... References Cliffs of Palmer Land {{PalmerLand-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siple Station
Siple Station was a research station in Antarctica (), established in 1973 by Stanford's STAR Lab, to perform experiments that actively probed the magnetosphere using very low frequency (VLF) waves. Its location was selected to be near the Earth's south magnetic pole, and the thick ice sheet allowed for a relatively efficient dipole antenna at VLF (very low frequency – 3 kHz range) frequencies. John Katsufrakis of Stanford University was the "father" of the station and the VLF experiment sponsored by Stanford. There were two stations, Siple I and later Siple II, circa 1979, built above the original which was eventually crushed by the ice. The original Siple I station had a four-person winter over crew and the later Siple II station had an eight-person winter over crew. The Siple II station used a 300 kW Kato square wound generator powered by a Caterpillar D353 engine to power the VLF (Jupiter) transmitter which transmitted to a receiver in Roberval, Canada. At the tim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eights Station
Eights Station was an Antarctic permanent exploration base from January 1963 to November 1965, located on Ellsworth Land Ellsworth Land is a portion of the Antarctic continent bounded on the west by Marie Byrd Land, on the north by Bellingshausen Sea, on the northeast by the base of Antarctic Peninsula, and on the east by the western margin of the Filchner–Ronne ... about 1100 km from Byrd Station and 2400 km from McMurdo Station. The station consisted of 11 prefabricated buildings that were brought in via planes and located on the site of the former "Sky-Hi" airlift project temporary scientific camp. The station was named for James Eights who was the first American Naturalist who visited Antarctica at the beginning of the 19th Century. The station was initially supported by 6 scientists and 5 Armed Forces attendants and included observations on meteorology, the ionosphere, geomagnetism, and aurora and radio waves. At its peak, Eights Station hosted 27 personnel, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Advisory Committee On Antarctic Names
The Advisory Committee on Antarctic Names (ACAN or US-ACAN) is an advisory committee of the United States Board on Geographic Names responsible for recommending commemorative names for features in Antarctica. History The committee was established in 1943 as the Special Committee on Antarctic Names (SCAN). It became the Advisory Committee on Antarctic Names in 1947. Fred G. Alberts was Secretary of the Committee from 1949 to 1980. By 1959, a structured nomenclature was reached, allowing for further exploration, structured mapping of the region and a unique naming system. A 1990 ACAN gazeeter of Antarctica listed 16,000 names. Description The United States does not recognise territorial boundaries within Antarctica, so ACAN assigns names to features anywhere within the continent, in consultation with other national nomenclature bodies where appropriate, as defined by the Antarctic Treaty System. The research and staff support for the ACAN is provided by the United States Geologi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Navy
The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage of its active battle fleet alone exceeding the next 13 navies combined, including 11 allies or partner nations of the United States as of 2015. It has the highest combined battle fleet tonnage (4,635,628 tonnes as of 2019) and the world's largest aircraft carrier fleet, with eleven in service, two new carriers under construction, and five other carriers planned. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the United States Navy is the third largest of the United States military service branches in terms of personnel. It has 290 deployable combat vessels and more than 2,623 operational aircraft . The United States Navy traces its origins to the Continental Navy, which was established during the American Revo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yee Nunataks
Yee Nunataks () is a group of scattered nunataks, about 24 miles (38 km) long and 12 miles (19 km) wide, centered 35 miles (60 km) northeast of Lyon Nunataks in Palmer Land. The nunataks rise 1,300-1,700 m in elevation and in the four quadrants include Staack Nunatak, Olander Nunatak, Metzgar Nunatak and Triassic Nunatak. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy aerial photographs, 1961–68, and U.S. Landsat imagery, 1973–74. Named in 1994 by Advisory Committee on Antarctic Names (US-ACAN) after Virginia Yee-Wray, cartographer and air brush specialist in the Shaded Relief and Special Maps Unit, Branch of Special Maps Special or specials may refer to: Policing * Specials, Ulster Special Constabulary, the Northern Ireland police force * Specials, Special Constable, an auxiliary, volunteer, or temporary; police worker or police officer Literature * ''Specia ..., USGS, who for many years prepared USGS shaded relief maps of Antarctica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continent
A continent is any of several large landmasses. Generally identified by convention rather than any strict criteria, up to seven geographical regions are commonly regarded as continents. Ordered from largest in area to smallest, these seven regions are: Asia, Africa, North America, South America, Antarctica, Europe, and Australia. "Most people recognize seven continents—Asia, Africa, North America, South America, Antarctica, Europe, and Australia, from largest to smallest—although sometimes Asia and Europe are considered a single continent, Eurasia." Variations with fewer continents may merge some of these, for example America, Eurasia, or Afro-Eurasia are sometimes treated as single continents, which can bring the total number as low as four. Zealandia, a largely submerged mass of continental crust, has also been described as a continent. Oceanic islands are frequently grouped with a nearby continent to divide all the world's land into geographical regions. Under t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Merrick Mountains
The Merrick Mountains () are a cluster of mountains, 13 km (8 mi) long, standing 11 km (7 mi) northeast of the Behrendt Mountains in Ellsworth Land, Antarctica. Discovered and photographed from the air by the Ronne Antarctic Research Expedition, 1947–1948, under Finn Ronne. Named by US-ACAN for Conrad G. Merrick, USGS The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, a ... topographic engineer with the Antarctic Peninsula Traverse Party, 1961–1962, who participated in the survey of these mountains. Features * Mount Becker * Mount Berger * Mount Boyer See also * Mount Wasilewski References Mountain ranges of Ellsworth Land {{EllsworthLand-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C74072s1 Ant , the Eight-Burst Nebula, or the Southern Ring Nebula), a planetary nebula in the constellation Vela
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C74 or C-74 may be: * C-74 Globemaster, transport aircraft with transoceanic range * In lighting, a reversed clothespin used to hold gels and light screens in theatrical productions * Comiket 74, The 74th Comiket Convention in Japan * Ruy Lopez (Spanish Game) opening, Encyclopaedia of Chess Openings * Adrenal tumor ICD-10 code * Cycling '74, a software development company known for distributing Max/MSP * Caldwell 74 (NGC 3132 NGC 3132 (also known as the Eight-Burst Nebula, the Southern Ring Nebula, or Caldwell 74) is a bright and extensively studied planetary nebula in the constellation Vela. Its distance from Earth is estimated at about 613 pc. or 2,000 light-yea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
