wind direction

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• Wind direction — is the direction from which the wind is blowing. It is usually reported in cardinal directions or in azimuth degrees. There are a variety of instruments used to measure wind direction, such as the windsock and wind vane. Both of these instruments …   Wikipedia

• wind direction — noun : the direction from which the wind blows * * * wind direction «wihnd», the direction from which the wind is blowing, indicated by a weathercock …   Useful english dictionary

• wind direction — The direction from which the wind is blowing, expressed as a number from 000° to 359°. The wind direction is often indicated by three arrows when plotted on charts and maps …   Aviation dictionary

• wind direction — way that the wind is blowing …   English contemporary dictionary

• Wind shear — Wind shear, sometimes referred to as windshear or wind gradient, is a difference in wind speed and direction over a relatively short distance in the atmosphere. Wind shear can be broken down into vertical and horizontal components, with… …   Wikipedia

• wind shear — /wind/ 1. the rate at which wind velocity changes from point to point in a given direction. 2. a condition, dangerous to aircraft, in which the speed or direction of the wind changes abruptly. Cf. microburst. [1940 45] * * * Rate of change of… …   Universalium

• Wind speed — is the speed of wind, the movement of air or other gases in an atmosphere. It is a scalar quantity, the magnitude of the vector of motion.Wind speed has always meant the movement of air in an outside environment, but the speed of air movement… …   Wikipedia

• Wind barb — Wind Barbs are symbols used on weather maps [http://polar.ncep.noaa.gov/waves/latest run/wna ecg.anim.gif] to indicate the speed and direction of wind. A barb is comprised of a minimum of two straight lines, the longest of which indicates the… …   Wikipedia

• wind rose — /wind/ 1. a map symbol showing, for a given locality or area, the frequency and strength of the wind from various directions. 2. a diagram showing the relation of wind direction to other weather conditions at a given location. [1590 1600] * * * ▪ …   Universalium

• wind indicator — /wind/ a large weather vane used at airports to indicate wind direction. * * * …   Universalium

• wind tee — ☆ wind tee n. a large T shaped weather vane placed on a landing field, as to show wind direction for aircraft …   English World dictionary