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Riiser-Larsen Sea
The Riiser-Larsen Sea is one of the marginal seas located in the Southern Ocean off East Antarctica and south of the Indian Ocean. It is delimited Astrid Ridge in the west and the Gunnerus Ridge and the Kainanmaru Bank in the east. It is bordered by the Lazarev Sea to the west and the Cosmonauts Sea to the east, or between 14°E and 30°E. Its northern border is defined to be the 65th parallel south. The name, proposed by the Soviet Union, was never officially approved by the International Hydrographic Organization (IHO). To the south of this area lies the Princess Astrid Coast and Princess Ragnhild Coast of Queen Maud Land. In the western part is the Lazarev Ice Shelf, and further east are Erskine Iceport and Godel Iceport, and the former Belgian Roi-Baudouin Station. Name dispute The Riiser-Larsen Sea was named in 1962 by the Soviet Antarctic Expedition in honor of Norwegian aviation pioneer and polar explorer Hjalmar Riiser-Larsen (1890–1965). The IHO 2002 draft was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erskine Iceport
Erskine Iceport (), also known as Erskine Bay or General Erskine Bay, is an iceport about wide and long, which marks a more-or-less permanent indentation extending southeast into the seaward front of the extensive ice shelf fringing Queen Maud Land. Discovery and naming United States Navy Operation Deep Freeze I personnel on the USS ''Glacier'' made a running survey of this coast in March 1956. They applied the name "General Erskine Bay" for General Graves B. Erskine, United States Marine Corps, director of the U.S. Navy Office of Special Operations, who assisted in formulating expedition plans and policy. The term "iceport" was suggested by the Advisory Committee on Antarctic Names in 1956 to denote an ice shelf indentation, subject to configuration changes, which may offer anchorage or possible access to the upper surface of an ice shelf via ice ramps along one or more sides of the feature. See also * Ice pier * Atka Iceport * Godel Iceport * Norsel Iceport * Bay of Whale ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemipelagic Sediment
Hemipelagic sediment, or hemipelagite, is a type of marine sediment that consists of clay and silt-sized grains that are terrigenous and some biogenic material derived from the landmass nearest the deposits or from organisms living in the water. Hemipelagic sediments are deposited on continental shelves and continental rises, and differ from pelagic sediment compositionally. Pelagic sediment is composed of primarily biogenic material from organisms living in the water column or on the seafloor and contains little to no terrigenous material. Terrigenous material includes minerals from the lithosphere like feldspar or quartz. Volcanism on land, wind blown sediments as well as particulates discharged from rivers can contribute to Hemipelagic deposits. These deposits can be used to qualify climatic changes and identify changes in sediment provenances. Deposition Hemipelagic sediment dispersal is mainly controlled by fluvial discharge. Dispersal rate is influenced by sea-level variatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbidite
A turbidite is the geologic deposit of a turbidity current, which is a type of amalgamation of fluidal and sediment gravity flow responsible for distributing vast amounts of clastic sediment into the deep ocean. Sequencing Turbidites were first properly described by Arnold H. Bouma (1962), who studied deepwater sediments and recognized particular "fining-up intervals" within deep water, fine-grained shales, which were anomalous because they started at pebble conglomerates and terminated in shales. This was anomalous because within the deep ocean it had historically been assumed that there was no mechanism by which tractional flow could carry and deposit coarse-grained sediments into the abyssal depths. Bouma cycles begin with an erosional contact of a coarse lower bed of pebble to granule conglomerate in a sandy matrix, and grade up through coarse then medium plane parallel sandstone; through cross-bedded sandstone; rippled cross-bedded sand/silty sand, and finally lami ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine Canyon
A submarine canyon is a steep-sided valley cut into the seabed of the continental slope, sometimes extending well onto the continental shelf, having nearly vertical walls, and occasionally having canyon wall heights of up to 5 km, from canyon floor to canyon rim, as with the Great Bahama Canyon. Just as above-sea-level canyons serve as channels for the flow of water across land, submarine canyons serve as channels for the flow of turbidity currents across the seafloor. Turbidity currents are flows of dense, sediment laden waters that are supplied by rivers, or generated on the seabed by storms, submarine landslides, earthquakes, and other soil disturbances. Turbidity currents travel down slope at great speed (as much as 70 km/h), eroding the continental slope and finally depositing sediment onto the abyssal plain, where the particles settle out.Continental Margin Sedimentation: From Sediment Transport to Sequence Stratigraphy (Special Publication 37 of the IAS) Ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Times Atlas Of The World
''The Times Atlas of the World'', rebranded ''The Times Atlas of the World: Comprehensive Edition'' in its 11th edition and ''The Times Comprehensive Atlas of the World'' from its 12th edition, is a world atlas currently published by HarperCollins Publisher L.L.C. Its most recent edition, the fifteenth, was published on 6 September 2018. Editions First generation The first version of ''The Times Atlas of the World'' appeared as ''The Times Atlas'' in 1895; more printings followed up to 1900. It was published at the office of ''The Times'' newspaper in London, and contained 117 pages of maps with an alphabetical index of 130,000 names. The atlas was a reprint of Cassell & Co.'s ''Universal Atlas'', published in 1893. Cassell's atlas, in turn, used maps in English printed in Leipzig which were drawn from the second edition (1887; with some maps of the third edition (1893)) of the German ''Andrees Allgemeiner Handatlas'' from the publisher Velhagen & Klasing. Second generatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Geographic Society
The National Geographic Society (NGS), headquartered in Washington, D.C., United States, is one of the largest non-profit scientific and educational organizations in the world. Founded in 1888, its interests include geography, archaeology, and natural science, the promotion of environmental and historical conservation, and the study of world culture and history. The National Geographic Society's logo is a yellow portrait frame—rectangular in shape—which appears on the margins surrounding the front covers of its magazines and as its television channel logo. Through National Geographic Partners (a joint venture with The Walt Disney Company), the Society operates the magazine, TV channels, a website, worldwide events, and other media operations. Overview The National Geographic Society was founded on 13 January 1888 "to increase and diffuse geographic knowledge". It is governed by a board of trustees whose 33 members include distinguished educators, business executives, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hjalmar Riiser-Larsen
Hjalmar Riiser-Larsen (7 June 1890 – 3 June 1965) was a Norwegian aviation pioneer, military officer, polar explorer and businessman. Among his achievements, he is generally regarded a founder of the Royal Norwegian Air Force. Background Riiser-Larsen was born in Kristiania, Norway. In 1909, aged nineteen, he joined the Norwegian Naval Academy. In 1915 he became a 1st lieutenant in the newly formed Royal Norwegian Navy Air Service (RNoNAS). After World War I, he served as the acting head of the RNoNAS's factory until a more senior officer was appointed. In 1921, he joined the Aviation Council, then part of the Norwegian Ministry of Defence, as a secretary. This gave him the opportunity to study the fledgling military and civil aviation infrastructure for which the council was responsible. He also became a frequent pilot on the air routes used by the new aviation companies. Polar exploration Flying over the North Pole Riiser-Larsen's years of polar exploration began in 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polar Explorer
This list is for recognised pioneering explorers of the polar regions. It does not include subsequent travelers and expeditions. Polar explorers * Jameson Adams * Stian Aker * Valerian Albanov * Roald Amundsen * Salomon August Andrée * Piotr Fyodorovich Anjou * Henryk Arctowski * Josée Auclair * Mikhail Babushkin * Konstantin Badygin * Karl Baer * Georgiy Baidukov * Ann Bancroft * Willem Barents * Michael Barne * Robert Bartlett (explorer), Robert Bartlett * Nikifor Begichev * Fabian von Bellingshausen * Robert Mallory Berry, Robert M. Berry * Edward W. Bingham * Olav Bjaaland * Alfred Björling * Carsten Borchgrevink * Jon Bowermaster * Henry Robertson Bowers * Louise Arner Boyd * Edward Bransfield * Philip Brocklehurst * William Speirs Bruce * Georgy Brusilov * Daniel Byles * Richard Evelyn Byrd * Todd Carmichael * Umberto Cagni * Jacques Cartier * Jean-Baptiste Charcot * Semion Chelyuskin * Apsley Cherry-Garrard * Vasili Chichagov * Valery Chkalov * Jeremy Clarkson * George ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviator
An aircraft pilot or aviator is a person who controls the flight of an aircraft by operating its Aircraft flight control system, directional flight controls. Some other aircrew, aircrew members, such as navigators or flight engineers, are also considered aviators, because they are involved in operating the aircraft's navigation and engine systems. Other aircrew members, such as drone operators, flight attendants, Aircraft maintenance technician, mechanics and Line technician (aviation), ground crew, are not classified as aviators. In recognition of the pilots' qualifications and responsibilities, most militaries and many airlines worldwide award aviator badges to their pilots. History The first recorded use of the term ''aviator'' (''aviateur'' in French) was in 1887, as a variation of ''aviation'', from the Latin ''avis'' (meaning ''bird''), coined in 1863 by in ''Aviation Ou Navigation Aérienne'' ("Aviation or Air Navigation"). The term ''aviatrix'' (''aviatrice'' in F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norway
Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and the archipelago of Svalbard also form part of Norway. Bouvet Island, located in the Subantarctic, is a dependency of Norway; it also lays claims to the Antarctic territories of Peter I Island and Queen Maud Land. The capital and largest city in Norway is Oslo. Norway has a total area of and had a population of 5,425,270 in January 2022. The country shares a long eastern border with Sweden at a length of . It is bordered by Finland and Russia to the northeast and the Skagerrak strait to the south, on the other side of which are Denmark and the United Kingdom. Norway has an extensive coastline, facing the North Atlantic Ocean and the Barents Sea. The maritime influence dominates Norway's climate, with mild lowland temperatures on the se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soviet Antarctic Expedition
The Soviet Antarctic Expedition (SAE or SovAE) (russian: Советская антарктическая экспедиция, САЭ, ''Sovetskaya antarkticheskaya ekspeditsiya'') was part of the Arctic and Antarctic Research Institute of the Soviet Committee on Antarctic Research of the Academy of Sciences of the USSR. The Soviet Union's Ministry of Sea Transport was responsible for the administration, logistics and supply of the expeditions. The first Soviet contact with Antarctica was in January 1947 when the Slava whaling flotilla began whaling in Antarctic waters. Stations The first Soviet Antarctic station, '' Mirny'', was established near the coast on February 13, 1956. This was added to in December 1957 by another station, ''Vostok'' built inland near the south geomagnetic pole. Year-round stations * Mirny (established February 13, 1956) * Vostok (established December 16, 1957) * Novolazarevskaya (established January 18, 1961) * Molodyozhnaya (established January 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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