Wind gradient
Rate of increase in wind strength per unit increase in height / From Wikipedia, the free encyclopedia
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Not to be confused with gradient wind.
This article is about the interaction of horizontal wind with the earth's surface. For a more general treatment of related phenomena, see wind shear.
In common usage, wind gradient, more specifically wind speed gradient[1] or wind velocity gradient,[2] or alternatively shear wind,[3] is the vertical component of the gradient of the mean horizontal wind speed in the lower atmosphere.[4] It is the rate of increase of wind strength with unit increase in height above ground level.[5][6] In metric units, it is often measured in units of meters per second of speed, per kilometer of height (m/s/km), which reduces inverse milliseconds (ms−1), a unit also used for shear rate.