wind shear


wind shear
noun
: a radical shift in wind speed and direction that occurs over a very short distance

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/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]

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wind shear noun (meteorology)
1. A sudden change in wind velocity at right angles (horizontally or vertically) to its direction
2. The rate of such change
3. Conditions in which there are sudden changes of wind velocity and direction, constituting a danger to aircraft
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Main Entry:wind

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wind shear,
sudden local change in wind direction and speed: »

The Air Line Pilots Association says it has known for years that wind shear is a factor in many plane crashes (Wall Street Journal).

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[wind]
n. variation in wind velocity occurring along a direction at right angles to the wind's direction and tending to exert a turning force

Useful english dictionary. 2012.

Look at other dictionaries:

  • 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 shear — loc.s.m.inv. ES ingl. {{wmetafile0}} TS meteor. variazione di direzione o di intensità del vento, in grado di provocare situazioni di grave pericolo durante le fasi di decollo o di atterraggio di un aeromobile {{line}} {{/line}} DATA: 1993. ETIMO …   Dizionario italiano

  • wind shear — wind′ shear [[t]wɪnd[/t]] n. 1) phs mer the rate at which wind velocity changes from point to point in a given direction 2) phs mer aer. aer. a condition, dangerous to aircraft, in which the speed or direction of the wind changes abruptly …   From formal English to slang

  • wind shear — n. a sudden change in the direction of the wind; esp., a sudden, dangerous downdraft encountered as by aircraft …   English World dictionary

  • wind shear — The rate of change in the wind velocity in space, considered as a vector. A vertical shear is a change in the wind velocity with height, whereas a horizontal shear is the change in the wind with the horizontal distance perpendicular to the flow.… …   Aviation dictionary

  • wind shear — vėjo poslinkis statusas Aprobuotas sritis hidrometeorologija apibrėžtis Vėjo greičio dviejuose erdvės taškuose skirtumo ir atstumo tarp šių taškų santykis. atitikmenys: angl. wind shear vok. Windbewegung rus. cдвиг ветра šaltinis Lietuvos… …   Lithuanian dictionary (lietuvių žodynas)

  • wind shear — noun variation in wind velocity along a direction at right angles to the wind s direction, tending to exert a turning force …   English new terms dictionary

  • wind shear — A change of wind direction and magnitude …   Military dictionary

  • wind shear — noun Date: 1941 a radical shift in wind speed and direction that occurs over a very short distance …   New Collegiate Dictionary


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