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ice navigation

См. также в других словарях:

  • Ice pool — Non Directional Beacon is a radio navigation aid for aviation; abbreviated ICW. It is owned by the City of Nenana and operated by the Federal Aviation Administration.LocationIce Pool is located on field at the Nenana Municipal Airport, Nenana,… …   Wikipedia

  • Ice protection system — Ice protection systems are designed to keep atmospheric ice from accumulating on aircraft flight surfaces while in flight. The effects of ice accretion on an aircraft can cause the shape of airfoils and flight control surfaces to change, which… …   Wikipedia

  • Ice blasting — is the use of explosives to break up ice in rivers, greatly aiding navigation systems. This is done during the spring when snow is melting and river ice is breaking up. There is always a chance that the ice flows could collide creating an ice jam …   Wikipedia

  • Ice Harbor Lock and Dam — is a hydroelectric, concrete, gravity dam on the Snake River in Walla Walla and Franklin counties in the U.S. state of Washington. The dam is located 8 miles (13 km) northeast of the town of Burbank and 12 miles (20 km) east of Pasco, river mile… …   Wikipedia

  • navigation — navigational, adj. /nav i gay sheuhn/, n. 1. the act or process of navigating. 2. the art or science of plotting, ascertaining, or directing the course of a ship, aircraft, or guided missile. [1520 30; < L navigation (s. of navigatio) a voyage.… …   Universalium

  • Navigation light — The winglet and red navigation light on the port (left) wing of a South African Airways Boeing 747 400 aircraft A navigation light is a colored source of illumination on an aircraft, spacecraft, or waterborne vessel, used to signal a craft s… …   Wikipedia

  • navigation — [[t]næ̱vɪge͟ɪʃ(ə)n[/t]] N UNCOUNT You can refer to the movement of ships as navigation. → See also navigate Pack ice around Iceland was becoming a threat to navigation …   English dictionary

  • ice-free — /uys free /, adj. 1. free of ice. 2. (of a harbor or other body of water) free at all times of the year of any ice that would impede navigation. [1890 95] * * * …   Universalium

  • sea ice — Ice formed from frozen seawater in polar regions. Most sea ice occurs as pack ice, which drifts across the ocean surface; other types of sea ice include fast ice, which is attached to coasts and sometimes the seafloor or between grounded icebergs …   Universalium

  • International Ice Patrol — Since 1914 the International Ice Patrol has been monitoring the presence of icebergs in the northern Atlantic Ocean and reports their movements for safety purposes. It was established in response to the sinking of the RMS Titanic . According to… …   Wikipedia

  • Measurement of sea ice — Annual growth and retreat of the polar ice packs from SeaWiFS images Measurement of sea ice is important for safety of navigation and for monitoring the environment, particularly the climate. Record keeping of direct observations began over a… …   Wikipedia

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