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The change in atmospheric pressure per unit distance. The greater the change in pressure per unit distance, the stronger the pressure the pressure gradient and the stronger the wind.
The rate of decrease of pressure per unit of horizontal distance. On the same chart, when the isobars are close together, the pressure gradient is steep. When the isobars are far apart, the pressure gradient is weak.
(In meteorology, also called barometric gradient.) The rate of decrease (gradient) of pressure in space at a fixed time. The term is sometimes loosely used to denote simply the magnitude of the gradient of the pressure field.
The rate of pressure change over a given horizontal distance.
A scale of pressure differences in which there is a uniform variation of pressure from point to point. For example, the pressure gradient of a column of pure water is about 0.433 psi/ft of vertical elevation (9.79 kPa/m).
The difference in atmospheric pressure between two points on a weather map. That is, the magnitude of pressure difference between two points at sea level, or at constant elevation above sea level. Wind speed is directly related to pressure gradient. If distance between constant pressure lines is reduced by one-half, wind speed will be doubled. Conversely, if distance between lines is doubled, wind speed will be reduced by one-half.
The difference in air pressure between two points or places (or example between two weather systems, ie high pressure and low pressure). The tighter the pressure gradient, or the greater the pressure difference between weather systems, the higher the wind speed between them as well. Likewise, the less the pressure gradient, the lighter the wind speeds.
The difference in pressure between two points divided by the distance between them. On a weather map, the closeness of the isobars is a measure of the pressure gradient.
the rate at which air pressure decreases with horizontal distance.
The change in pressure over a given distance.