The ITCZ is the belt of low pressure near the equator where the trade winds meet. It is not fixed; it moves North during the Northern Hemisphere summer and South during the Southern Hemisphere summer. This “migration” of the ITCZ ...
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In very small, violent spinning systems like tornadoes or dust devils, the Coriolis force is too weak to matter. Instead, the wind is a balance between the Pressure Gradient Force (pulling air into the center) and the Centrifugal Force (pulling ...
An anabatic wind is a local “upslope” wind. During the day, the sun heats the mountain slopes, which in turn heats the air touching them. This air becomes warmer and lighter than the air at the same altitude in the ...
The Ekman Spiral describes how wind blowing over the ocean surface moves the water. Because of the Coriolis effect, the surface water moves at a 45-degree angle to the wind. Each deeper layer of water moves even more slowly and ...
The Bora is a katabatic wind, which comes from the Greek word for “descending.” It is caused by cold, dense air sitting over high plateaus. Gravity pulls this heavy air down the mountain slopes toward the warmer coast. Because the ...