Rossby waves are massive, slow-moving ripples in the Jet Stream. They are caused by the Earth’s rotation and the presence of large mountain ranges. These waves are responsible for moving cold Arctic air toward the equator and warm tropical air ...
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The Horse Latitudes (30° N/S) are regions of high pressure created by sinking air. As air rises at the Equator, it travels poleward and eventually cools, becoming dense enough to sink back to Earth at these latitudes. Sinking air compresses ...
Dry air cools at about 10°C per kilometer (DALR). However, when rising air is saturated, water vapor condenses into liquid droplets. This chemical change releases “latent heat” into the air parcel. This extra heat partially offsets the cooling process, making ...
The Geostrophic wind occurs in the upper atmosphere where friction from the Earth’s surface is absent. It represents a perfect balance where the Pressure Gradient Force (pushing air toward low pressure) is exactly equaled by the Coriolis Force (pulling air ...
As an air parcel rises, the surrounding atmospheric pressure decreases. The parcel must expand to match this lower pressure. Expanding requires energy, which the parcel takes from its own internal heat. Since no heat is added from the outside, the ...