|
Dawson Head
Dawson Head () is a high coastal point, or headland, along the northwest side of Lehrke Inlet on the east coast of Palmer Land, Antarctica. It was mapped by the United States Geological Survey in 1974, and named by the Advisory Committee on Antarctic Names for Captain Opie L. Dawson, commanding officer of the USCGC ''Glacier'' during the International Weddell Sea Oceanographic Expedition The International Weddell Sea Oceanographic Expeditions or IWSOE are a series of scientific research expeditions to the Weddell Sea began in 1967, involving cooperation among Norway, Canada, Chile and the United States. The Weddell Sea, part of t ..., 1968. References * Headlands of Palmer Land {{PalmerLand-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Headland
A headland, also known as a head, is a coastal landform, a point of land usually high and often with a sheer drop, that extends into a body of water. It is a type of promontory. A headland of considerable size often is called a cape.Whittow, John (1984). ''Dictionary of Physical Geography''. London: Penguin, 1984, pp. 80, 246. . Headlands are characterised by high, breaking waves, rocky shores, intense erosion, and steep sea cliff. Headlands and bays are often found on the same coastline. A bay is flanked by land on three sides, whereas a headland is flanked by water on three sides. Headlands and bays form on discordant coastlines, where bands of rock of alternating resistance run perpendicular to the coast. Bays form when weak (less resistant) rocks (such as sands and clays) are eroded, leaving bands of stronger (more resistant) rocks (such as chalk, limestone, and granite) forming a headland, or peninsula. Through the deposition of sediment within the bay and the erosion of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lehrke Inlet
Lehrke Inlet () is an ice-filled inlet, wide, which recedes southwest for between Cape Boggs and Cape Sharbonneau, along the east coast of Palmer Land, Antarctica. It was discovered by members of the United States Antarctic Service The United States Antarctic Program (or USAP; formerly known as the United States Antarctic Research Program or USARP and the United States Antarctic Service or USAS) is an organization of the United States government which has presence in the A ... who explored this coast on land and from the air in 1940, and was named for Lester Lehrke, boatswain's mate of , one of the expedition ships, and sailmaker of the East Base. Dawson Head is located along the northwest side of the inlet. References Inlets of Palmer Land {{PalmerLand-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palmer Land
Palmer Land () is the portion of the Antarctic Peninsula, Antarctica that lies south of a line joining Cape Jeremy and Cape Agassiz. This application of Palmer Land is consistent with the 1964 agreement between the Advisory Committee on Antarctic Names and the UK Antarctic Place-Names Committee, in which the name Antarctic Peninsula was approved for the major peninsula of Antarctica, and the names Graham Land and Palmer Land for the northern and southern portions, respectively. The line dividing them is roughly 69° S. Boundaries In its southern extreme, the Antarctic Peninsula stretches west, with Palmer Land eventually bordering Ellsworth Land along the 80° W line of longitude. Palmer Land is bounded in the south by the ice-covered Carlson Inlet, an arm of the Filchner-Ronne Ice Shelf, which crosses the 80° W line. This is the base of Cetus Hill. This feature is named after Nathaniel Palmer, an American sealer who explored the Antarctic Peninsula area southward of Deceptio ... [...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] |
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] |
Opie L of Brazil
{{disambiguation ...
Opie may refer to: * Opie (name), a list of people and fictional characters with the given name, nickname, or surname * Acronyms OPIE: ** OPIE (Entomology) (''Office pour l'Information Eco-entomologique''), a French government organisation devoted to entomology ** OPIE Authentication System, a one-time password authentication system for Unix based on S/KEY See also * Okey * Okie *opy, ISO 639-3 code for the Ofayé language The Ofayé or Opaye language, also ''Ofaié-Xavante, Opaié-Shavante'', forms its own branch of the Macro-Jê languages. It is spoken by only a couple of the small Ofayé people, though language revitalization efforts are underway. Grammatical d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commanding Officer
The commanding officer (CO) or sometimes, if the incumbent is a general officer, commanding general (CG), is the officer in command of a military unit. The commanding officer has ultimate authority over the unit, and is usually given wide latitude to run the unit as they see fit, within the bounds of military law. In this respect, commanding officers have significant responsibilities (for example, the use of force, finances, equipment, the Geneva Conventions), duties (to higher authority, mission effectiveness, duty of care to personnel), and powers (for example, discipline and punishment of personnel within certain limits of military law). In some countries, commanding officers may be of any commissioned rank. Usually, there are more officers than command positions available, and time spent in command is generally a key aspect of promotion, so the role of commanding officer is highly valued. The commanding officer is often assisted by an executive officer (XO) or second-in-com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USCGC Glacier (WAGB-4)
USS ''Glacier'' (AGB-4) (later USCGC ''Glacier'' (WAG/WAGB-4)) was a U.S. Navy, then U.S. Coast Guard icebreaker which served in the first through fifteenth Operation Deep Freeze expeditions. ''Glacier'' was the first icebreaker to make her way through the frozen Bellingshausen Sea, and most of the topography in the area is named for her crew members. When built, ''Glacier'' had the largest capacity single armature DC motors ever installed on a ship. ''Glacier'' was capable of breaking ice up to thick, and of continuous breaking of thick ice at . Named for Glacier Bay, Alaska, USS ''Glacier'' was launched on 27 August 1954 at Ingalls Shipbuilding Corp., Pascagoula, Mississippi, sponsored by Mrs. Roscoe F. Good; and commissioned on 27 May 1955, CDR. E.H. Mayer USN, Commanding. ''Glacier'' is the only icebreaker built in the ''Glacier'' class, and was in U.S. Navy service for 11 years, and U.S. Coast Guard service for 21 years. Construction ''Glacier'' was essentially an impr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Weddell Sea Oceanographic Expedition
The International Weddell Sea Oceanographic Expeditions or IWSOE are a series of scientific research expeditions to the Weddell Sea began in 1967, involving cooperation among Norway, Canada, Chile and the United States. The Weddell Sea, part of the Southern Ocean, is a unique scientific research environment. The outflow of Weddell Sea Bottom Water and Antarctic Bottom Water formed in the Weddell and Ross Seas is a major source of oceanic deep water and changes affecting the formation of these water masses are liable to have an effect on the circulation of deep water globally. The water of the Weddell Sea is about 1400 m deep at its deepest point; it is exceptionally clear (the Secchi disk visibility reading at 80 metres recorded in the Weddell Sea on 13 October 1986 was the deepest ever, at the theoretical maximum in absolutely pure water). Much of the southern part of the sea is permanent ice, the Filchner-Ronne Ice Shelf, which can be up to 600 m thick. IWSOE research project ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
