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McMurdo Ice Shelf
The McMurdo Ice Shelf is the portion of the Ross Ice Shelf bounded by McMurdo Sound and Ross Island on the north and Minna Bluff on the south. Studies show this feature has characteristics quite distinct from the Ross Ice Shelf and merits individual naming. A.J. Heine, who made investigations in 1962–63, suggested the name for the ice shelf bounded by Ross Island, Brown Peninsula Brown Peninsula () is a nearly ice-free peninsula, long and wide, which rises above the Ross Ice Shelf northward of Mount Discovery, to which it is connected by a low isthmus. It was discovered by the British National Antarctic Expedition, 1901â ..., Black Island and White Island. The Advisory Committee on Antarctic Names has extended the application of this name to include the contiguous ice shelf southward to Minna Bluff. In March 2010, while scientists were taking photographs of the underside of the ice shelf, they discovered a living Lysianassidae amphipod. References Ice shelve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mcmurdo Oli 2013334
Vice-Admiral Archibald McMurdo (24 September 1812 – 11 December 1875) was a Scottish naval officer and polar explorer after whom Antarctica's McMurdo Sound, McMurdo Station, McMurdo Ice Shelf, McMurdo Dry Valleys and McMurdo–South Pole Highway are named. Early life Archibald William McMurdo was born on September 24, 1812 in Scotland. He was the son of Lieutenant Colonel Archibald McMurdo and grandson of John McMurdo, a chamberlain at Drumlanrig Castle. Career McMurdo joined the Royal Navy on 6 October 1824, at the age of 12. He was promoted to Lieutenant in 1836 for his skill and courage in saving the crew of a shipwrecked whaler from hostile New Zealand natives. He achieved the rank of Commander in 1843 and Captain in 1851. His career included two discovery expeditions aboard HMS ''Terror'', the first to Hudson Bay (1836-1837), the second to Antarctica (1839-1842). In 1836 he served on HMS Volage during its voyage to East India. During the Antarctica voyage, McMurdo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ross Ice Shelf
The Ross Ice Shelf is the largest ice shelf of Antarctica (, an area of roughly and about across: about the size of France). It is several hundred metres thick. The nearly vertical ice front to the open sea is more than long, and between high above the water surface. Ninety percent of the floating ice, however, is below the water surface. Most of Ross Ice Shelf is in the Ross Dependency claimed by New Zealand. It floats in, and covers, a large southern portion of the Ross Sea and the entire Roosevelt Island located in the east of the Ross Sea. The ice shelf is named after Sir James Clark Ross, who discovered it on 28 January 1841. It was originally called "The Barrier", with various adjectives including "Great Ice Barrier", as it prevented sailing further south. Ross mapped the ice front eastward to 160° W. In 1947, the U.S. Board on Geographic Names applied the name "Ross Shelf Ice" to this feature and published it in the original U.S. Antarctic Gazetteer. In Januar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McMurdo Sound
McMurdo Sound is a sound in Antarctica. It is the southernmost navigable body of water in the world, and is about from the South Pole. Captain James Clark Ross discovered the sound in February 1841, and named it after Lt. Archibald McMurdo of HMS ''Terror''. The sound today serves as a resupply route for cargo ships and for airplanes that land on the floating ice airstrips near McMurdo Station. Physical characteristics Wildlife in the sound include killer whales, seals, Adélie penguins, and emperor penguins. Boundary and Extents The sound extends approximately 55 kilometers (34 mi) in length and width, and opens into the larger Ross Sea to the north. To the south, the sound is bounded by the Ross Ice Shelf cavity, to the west lies the Royal Society Range, and to the east is Ross Island. McMurdo Sound is separated from the McMurdo Ice Shelf (itself part of the Ross Ice Shelf) by the Haskell Strait. Winter Quarters Bay lies at the south end of the Sound, and is the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ross Island
Ross Island is an island formed by four volcanoes in the Ross Sea near the continent of Antarctica, off the coast of Victoria Land in McMurdo Sound. Ross Island lies within the boundaries of Ross Dependency, an area of Antarctica claimed by New Zealand. History Discovery Sir James Ross discovered it in 1840, and it was later named in honour of him by Robert F. Scott. Ross Island was the base for many of the early expeditions to Antarctica. It is the southernmost island reachable by sea. Huts built by Scott's and Shackleton's expeditions are still standing on the island, preserved as historical sites. Today Ross Island is home to New Zealand's Scott Base, and the largest Antarctic settlement, the U.S. Antarctic Program's McMurdo Station. Greenpeace established World Park Base on the island and ran it for five years, from 1987 to 1992. Geography Because of the persistent presence of the ice sheet, the island is sometimes taken to be part of the Antarctic mainland. Its are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minna Bluff
Minna Bluff is a rocky promontory at the eastern end of a volcanic Antarctic peninsula projecting deep into the Ross Ice Shelf at . It forms a long, narrow arm which culminates in a south-pointing hook feature (Minna Hook), and is the subject of research into Antarctic cryosphere history, funded by the National Science Foundation, Office of Polar Programs. The bluff is mentioned repeatedly in the history of Antarctic exploration. It was first sighted in June 1902, during Captain Robert Falcon Scott's ''Discovery'' Expedition, 1901–04. It was thereafter recognised as a key landmark and location for vital supply depots for southern journeys towards the South Pole. Originally identified simply as "the Bluff", it was later named by Scott after the wife of Royal Geographical Society former president Sir Clements Markham. Every expedition that followed Scott on this route after his pioneering journey (including Ernest Shackleton in 1908, Scott himself in 1911 and Shackleton's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brown Peninsula
Brown Peninsula () is a nearly ice-free peninsula, long and wide, which rises above the Ross Ice Shelf northward of Mount Discovery, to which it is connected by a low isthmus. It was discovered by the British National Antarctic Expedition, 1901–04 The ''Discovery'' Expedition of 1901–1904, known officially as the British National Antarctic Expedition, was the first official British exploration of the Antarctic regions since the voyage of James Clark Ross sixty years earlier (1839–184 ..., which named it "Brown Island" because of its color and its island-like character. Since it is a peninsula, the name has been altered accordingly. See also * Ebon Pond References Peninsulas of Antarctica Landforms of Victoria Land Scott Coast {{ScottCoast-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Island (Ross Archipelago)
Black Island (), in the Ross Archipelago, is immediately west of White Island (Ross Archipelago), White Island. It was first named by the Discovery Expedition, ''Discovery'' Expedition (1901–04) because of its lack of snow. The island's northernmost point is named ''Cape Hodgson'', commemorating Thomas Vere Hodgson, one of the oldest members of the ''Discovery'' Expedition. The highest point is Mount Aurora, a principal radio relay point. Mt. Aurora was named between 1958-1959 for the ''Aurora'', one of the ships on Imperial Trans-Antarctic Expedition, Shackleton's Expedition. On the minor peak of Mount Melania is the principal earth-based ground-station for the US Antarctic Program. Black Island is volcanic in origin, consisting of a series of trachytic lava domes and basaltic pyroclastic cones. Potassium–argon dating of Black Island volcanic rocks has given ages ranging from 1.69 to 3.8 million years. There are three main geological formations representing three e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Island (Ross Archipelago)
White Island is an island in the Ross Archipelago of Antarctica. It is long, protruding through the Ross Ice Shelf immediately east of Black Island. It was discovered by the Discovery Expedition (1901–04) and so named by them because of the mantle of snow which covers it. Some 142 km2 of shelf ice adjoining the north-west coast of the island has been designated an Antarctic Specially Protected Area ( ASPA 137) because it supports an isolated small breeding population of Weddell seals. White Island consists of two Pleistocene shield volcanoes overlain by volcanic cone Volcanic cones are among the simplest volcanic landforms. They are built by ejecta from a volcanic vent, piling up around the vent in the shape of a cone with a central crater. Volcanic cones are of different types, depending upon the nature and ...s. The last known eruption occurred 0.17 million years ago. See also * List of Antarctic and subantarctic islands * Mount Nipha, standing almost precisely ... [...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] |
Lysianassidae
Lysianassidae is a family of marine amphipods, containing the following genera: *'' Acontiostoma'' Stebbing, 1888 *'' Alibrotus'' Milne-Edwards, 1840 *'' Allogaussia'' Schellenberg, 1926 *'' Ambasia'' Boeck, 1871 *'' Ambasiella'' Schellenberg, 1935 *'' Amphorites'' Lowry & Stoddart, 2012 *'' Aristiopsis'' J. L. Barnard, 1961 *'' Aruga'' Homes, 1908 *'' Arugella'' Pirlot, 1936 *'' Azotostoma'' J. L. Barnard, 1965 *'' Boeckosimus'' J. L. Barnard, 1969 *'' Bonassa'' Barnard & Karaman, 1991 *'' Bruunosa'' Barnard & Karaman, 1987 *'' Callisoma'' Costa, 1851 *'' Cedrosella'' Barnard & Karaman, 1987 *'' Cheirimedon'' Stebbing, 1888 *'' Concarnes'' Barnard & Karaman, 1991 *'' Conicostoma'' Lowry & Stoddart, 1983 *'' Coximedon'' Barnard & Karaman, 1991 *'' Dartenassa'' Barnard & Karaman, 1991 *'' Dissiminassa'' Barnard & Karaman, 1991 *'' Elimedon'' J. L. Barnard, 1962 *'' Falklandia'' De Broyer, 1985 *'' Gronella'' Barnard & Karaman, 1991 *'' Guerina'' Della Valle, 1893 *''Hippomedon'' Bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphipod
Amphipoda is an order of malacostracan crustaceans with no carapace and generally with laterally compressed bodies. Amphipods range in size from and are mostly detritivores or scavengers. There are more than 9,900 amphipod species so far described. They are mostly marine animals, but are found in almost all aquatic environments. Some 1,900 species live in fresh water, and the order also includes the terrestrial sandhoppers such as ''Talitrus saltator''. Etymology and names The name ''Amphipoda'' comes, via New Latin ', from the Greek roots 'on both/all sides' and 'foot'. This contrasts with the related Isopoda, which have a single kind of thoracic leg. Particularly among anglers, amphipods are known as ''freshwater shrimp'', ''scuds'', or ''sideswimmers''. Description Anatomy The body of an amphipod is divided into 13 segments, which can be grouped into a head, a thorax and an abdomen. The head is fused to the thorax, and bears two pairs of antennae and one pair of se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Shelves Of Antarctica
This is a list of Antarctic ice shelves. Ice shelves are attached to a large portion of the Antarctic coastline. Their total area is 1,541,700 km2. Names are also listed in the Scientific Committee on Antarctic Research, Gazetteer. The ice shelf areas are listed below, clockwise, starting in the west of East Antarctica: :†Indicates that the ice shelf has collapsed. See also *List of Antarctic ice streams * List of glaciers in the Antarctic *Retreat of glaciers since 1850 References {{Authority control Ice shelves An ice shelf is a large floating platform of ice that forms where a glacier or ice sheet flows down to a coastline and onto the ocean surface. Ice shelves are only found in Antarctica, Greenland, Northern Canada, and the Russian Arctic. The b ... Antarctic ice shelves ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
