Question

what is meant by pressure gradient force? what is its contribution in air movement..​

Answer 1

Answer:

In atmospheric science, the pressure gradient (typically of air but more generally of any fluid) is a physical quantity that describes in which direction and at what rate the pressure increases the most rapidly around a particular location.

The greater the pressure gradient, the stronger the windspeed. Thus, on surface weather maps, the strongest winds are happening where the isobars are closest together and the weakest winds are happening where the isobars are spaced furthest apart.the pressure gradient is weak, the wind speed is light. shows that the flow of air is from the area of high pressure to the area of low pressure, but it does not flow straight across the isobars. Instead the flow is circular around the pressure systems.

Explanation:

Differences in air pressure and the pressure gradient force are caused by the unequal heating of the Earth's surface when incoming solar radiation concentrates at the equator. Because of the energy surplus at low latitudes for example, the air there is warmer than that at the poles.

To show wind speeds, the pressure gradient is plotted onto weather maps using isobars mapped between areas of high and low pressure. Bars spaced far apart represent a gradual pressure gradient and light winds. Those closer together show a steep pressure gradient and strong wind

Answer 2

Answer:

Pressure Gradient Force

points from higher to lower pressure

The change in pressure measured across a given distance called a Pressure Gradient.

The pressure gradient creates a net force that is directed from higher to lower pressure and is called the Pressure Gradient Force.

This force is responsible for triggering the initial movement of air, which in turn leads to the development of wind. As air increases in velocity, it is deflected by the Coriolis Force.

Explanation:

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