wind shear

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Английский Язык - Английский Язык
A change of wind speed, direction, and magnitude
A change in wind direction and speed between slightly different altitudes, especially a sudden downdraft. Rate of change of wind velocity with distance perpendicular to the wind direction. A very narrow zone of abrupt velocity change is known as a shear line. Wind shear is observed near the ground and in jet streams, where it may be associated with clear-air turbulence. Vertical wind shear is closely associated with the vertical flux of momentum, heat, and water vapour
{i} sudden change in the direction and momentum of a wind pattern (especially a shift from horizontal breezes to vertical breezes)
Windshear
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wind shear
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