submarine elevation

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• Submarine canyon — A submarine canyon is a steep sided valley on the sea floor of the continental slope. Many submarine canyons are found as extensions to large rivers; however there are some that have no such association. Canyons cutting the continental slopes… …   Wikipedia

• Digital elevation model — 3D rendering of a DEM of Tithonium Chasma on Mars A digital elevation model is a digital model or 3 D representation of a terrain s surface commonly for a planet (including Earth), moon, or asteroid created from terrain elevation data. There is… …   Wikipedia

• Heroine class submarine — The Heroine class are a variant of the Type 209 diesel electric attack submarine developed by Howaldtswerke Deutsche Werft AG of Germany, currently in service with the South African Navy. Background South Africa placed a contract for three Type… …   Wikipedia

• Udav-1 anti-submarine system — The UDAV 1 system is a Russian ship borne Anti submarine weapon system. The weapon fires a number of different types of rockets, which in addition to attacking submarines provide a multi layer defence against torpedoes and frogmen. The system… …   Wikipedia

• oceanic plateau — or submarine plateau Large submarine elevation rising sharply at least 660 ft (200 m) above the surrounding seafloor and having an extensive, relatively flat or gently tilted summit. Most plateaus are steplike interruptions of the continental… …   Universalium

• Rockall — is a small, uninhabited, rocky islet in the north Atlantic Ocean, and one of the sea areas named in the Shipping Forecast broadcast on BBC Radio 4. It could be, in James Fisher s words, the smallest isolated rock, or the most isolated small rock… …   Wikipedia

• bank — I. /bæŋk / (say bangk) noun 1. a long pile or mass: bank of earth; bank of snow; bank of clouds. 2. a slope or acclivity. 3. Physical Geography the slope immediately bordering the course of a river along which the water normally runs. 4.… …  

• Carlsberg Ridge — ▪ submarine ridge, Arabian Sea       submarine ridge of the Arabian Sea and the Indian Ocean. The ridge is a portion of the Mid Indian Ridge and extends from near Rodrigues Island to the Gulf of Aden (Aden, Gulf of), trending basically northwest… …   Universalium

• Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …   Universalium

• volcano — /vol kay noh/, n., pl. volcanoes, volcanos. 1. a vent in the earth s crust through which lava, steam, ashes, etc., are expelled, either continuously or at irregular intervals. 2. a mountain or hill, usually having a cuplike crater at the summit,… …   Universalium

• United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …   Universalium