ceiling projector

云幕灯

Atmospheric Sciences (English-Chinese) dictionary. 2014.

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  • Ceiling projector — The ceiling projector or cloud searchlight is used to measure the height of the base of clouds (called the ceiling) above the ground. It is used in conjunction with an alidade, usually positioned 1000 ft (304.8 m) away and wherever possible set… …   Wikipedia

  • Projector — may refer to:* Video projector, a device that projects a video signal from computer, home theater system etc. * Movie projector, a device that projects moving pictures from a filmstrip * Slide projector, a device that projects a still image with… …   Wikipedia

  • Ceiling balloon — A ceiling balloon is used by meteorologists to determine the height of the base of clouds above ground level during daylight hours.The principle behind the ceiling balloon is a balloon with a known ascent rate (how fast it climbs) and determining …   Wikipedia

  • ceiling light projector — debesų aukščiamatis statusas T sritis Standartizacija ir metrologija apibrėžtis Debesų aukščio virš Žemės paviršiaus matuoklis. atitikmenys: angl. ceiling light projector vok. Wolkenhöhenmesser, m rus. облачный прожектор, m pranc. célomètre, m …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • METAR — For the Israeli town, see Meitar. METAR is a format for reporting weather information. A METAR weather report is predominantly used by pilots in fulfillment of a part of a pre flight weather briefing, and by meteorologists, who use aggregated… …   Wikipedia

  • Radiosonde — A GPS sonde, approx 220 × 80 ×75 mm (8.7 × 3.1 × 3 in) (with grounding station in background, used to perform a ground check and also recondition the humidity sensor) A radiosonde (Sonde is French for probe) is a unit for use in weather balloons… …   Wikipedia

  • Anemometer — A hemispherical cup anemometer of the type invented in 1846 by John Thomas Romney Robinson Cup ty …   Wikipedia

  • Meteorology — For other uses of the root word meteor , see Meteor (disambiguation). For the work by Aristotle, see Meteorology (Aristotle). Not to be confused with Metrology. Part of the Nature series on Weather   …   Wikipedia

  • Thermometer — A clinical mercury in glass thermometer …   Wikipedia

  • LIDAR — A FASOR used at the Starfire Optical Range for LIDAR and laser guide star experiments is tuned to the sodium D2a line and used to excite sodium atoms in the upper atmosphere …   Wikipedia

  • Barometer — Schematic drawing of a simple mercury barometer with vertical mercury column and reservoir at base …   Wikipedia

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