Air | Oh, the pressure
Oh, the pressure
Winds begin with differences in air pressureThe force exerted by the weight of the atmosphere above a point on or above Earth's surface.. Air always moves from areas of high pressure to low pressure. The greater the difference in pressures, the stronger the wind's force.
Air's pressure is caused by the weight of the air in Earth's atmosphere pushing down on the air below. Air in the troposphere has the highest pressure of all the layers. The air at the top of the atmosphere has little weight above it to push it down, so its pressure is less. The air at the bottom of the atmosphere is being pushed down by the hundreds of miles of air above it. This results in air low to the ground having more pressure than air high in the atmosphere. The air pressing down on you weighs about 1 ton (0.9 metric ton). You cannot feel this pressure because you are...
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