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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] |
Grossman Nunataks
The Grossman Nunataks () are a group of about a dozen nunataks in Ellsworth Land, Antarctica, rising in elevation and running northwest–southeast for between the Lyon Nunataks and the Sky-Hi Nunataks. The group includes features from the Smith Nunataks and the Whitmill Nunatak in the northwest to Gaylord Nunatak and Neff Nunatak in the southeast. Location The Grossman Nunataks are in southwestern Ellsworth Land to the northwest of Merrick Mountains and the southeast of Lyon Nunataks. Features, from northwest to southeast, include Smith Nunataks, Whitmill Nunatak, House Nunatak, Fletcher Nunataks, Barker Nunatak, Zohn Nunataks, Cheeks Nunatak, Fiebelman Nunatak, Schmutzler Nunatak and Gaylord Nunatak. Mapping and name The Grossman Nunataks were mapped by the United States Geological Survey (USGS) from surveys and United States Navy aerial photographs, 1961–68, and from United States Landsat imagery, 1973–74. They were named by the United States Advisory Committee on A ... [...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 Ellsworth Land, Antarctica. Location The Fitzgerald Bluffs overlook the English Coast to the north in Ellsworth Land. They are south of the Snow Nunataks and east of the Berg Ice Stream. Features to the southeast include Mount Southern, Mount Harry, Folz Nunatak, Schwartz Peak and Marshall Nunatak. The isolated Mount Peterson is to the south. Discovery and name The FitzGerald Bluffs were discovered by the Ronne Antarctic Research Expedition (RARE; 1947–48) under Finn Ronne, who named the bluffs after Gerald FitzGerald, Chief Topographic Engineer with the United States Geological Survey (USGS), 1947–57. O'Neill Peak The highest point, about of FitzGerald Bluffs. Following geological work in the area by a USGS field party in Dec. 1984, named by US-ACAN after John M. O'Neill, USGS geologist, a member of the field party. Southeast features Mount Southern . A sm ... [...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 (also known as the Antarctic 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 Climate of Antarctica#Precipitation, 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 temperature recorded on Earth, lowest measured temperature on Earth, . The coastal regions can reach temperatures over in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Geological Survey
The United States Geological Survey (USGS), founded as the Geological Survey, is an agency of the U.S. Department of the Interior whose work spans the disciplines of biology, geography, geology, and hydrology. The agency was founded on March 3, 1879, to study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The agency also makes maps of planets and moons, based on data from U.S. space probes. The sole scientific agency of the U.S. Department of the Interior, USGS is a fact-finding research organization with no regulatory responsibility. It is headquartered in Reston, Virginia, with major offices near Lakewood, Colorado; at the Denver Federal Center; and in NASA Research Park in California. In 2009, it employed about 8,670 people. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous slogan, adopted on its hundredth anniversary, was "Earth Science in the Pub ... [...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 Brun ... [...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 ... [...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 Antarctica, Antarctic continent bounded on the west by Marie Byrd Land, on the north by the Bellingshausen Sea, on the northeast by the base of the Antarctic Peninsula, and on the east by the western margin of t ... 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 naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 million tons in 2021. It has the world's largest aircraft carrier fleet, with List of aircraft carriers in service, eleven in service, one undergoing trials, two new carriers under construction, and six other carriers planned as of 2024. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the U.S. Navy is the third largest of the United States military service branches in terms of personnel. It has 299 deployable combat vessels and about 4,012 operational aircraft as of 18 July 2023. The U.S. Navy is one of six United States Armed Forces, armed forces of the United States and one of eight uniformed services of the United States. The United States Navy traces its origins to the Continental Navy, which was established during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yee Nunataks
The Yee Nunataks () are a group of scattered nunataks, about long and wide, centered northeast of Lyon Nunataks in Ellsworth Land, Antarctica. The nunataks rise in elevation and in the four quadrants include Staack Nunatak, Olander Nunatak, Metzgar Nunatak and Triassic Nunatak. Location The Yee Nunataks are in eastern Ellsworth Land, to the south of the English Coast of George VI Sound. They are north of the Lyon Nunataks, Merrick Mountains and Sky-Hi Nunataks. Individual nunataks include, from west to east, Staack Nunatak, Horner Nunatak, Tollefson Nunatak and Olander Nunatak. Mapping and name The Yee Nunataks were mapped by the United States Geological Survey (USGS) from surveys and United States Navy aerial photographs, 1961–68, and United States Landsat imagery, 1973–74. They were named in 1994 by United States Advisory Committee on Antarctic Names (US-ACAN) after Virginia Yee-Wray, cartographer and air brush specialist in the Shaded Relief and Special Maps Unit, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continent
A continent is any of several large geographical regions. Continents are generally identified by convention (norm), convention rather than any strict criteria. A continent could be a single large landmass, a part of a very large landmass, as in the case of Asia or Europe within Eurasia, or a landmass and nearby islands within its continental shelf. Due to these varying definitions, the number of continents varies; up to seven or as few as four geographical regions are commonly regarded as continents. Most English-speaking world, English-speaking countries recognize seven regions as continents. In order from largest to smallest in area, these seven regions are Asia, Africa, North America, South America, Antarctica, Europe, and Australia (continent), Australia (sometimes called Oceania or Australasia). Different variations with fewer continents merge some of these regions; examples of this are merging Asia and Europe into Eurasia, "Most people recognize seven continents—Asia, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Merrick Mountains
The Merrick Mountains () are a cluster of mountains, long, standing northeast of the Behrendt Mountains in Ellsworth Land, Antarctica. Location The Merrick Mountains are in eastern Ellsworth Land, to the south of the English Coast of George VI Sound They are northeast of the Behrendt Mountains and west of the Sweeney Mountains. Features include, from south to north, Eaton Nunatak, Mount Boyer, Mount Matheson, Mount Becker and Mount Berger. Nearby features include Henry Nunataks, Cheeks Nunatak, Lyon Nunataks, Sky-Hi Nunataks and Mount Wasilewski. Discovery and name The Merrick Mountains were discovered and photographed from the air by the Ronne Antarctic Research Expedition (RARE), 1947–48, under Finn Ronne. They were named by the United States Advisory Committee on Antarctic Names (US-ACAN) for Conrad G. Merrick, United States Geological Survey (USGS) topographic engineer with the Antarctic Peninsula Traverse Party, 1961–62, who participated in the survey of thes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
