How does prevailing wind, jet streams and the earths rotation affect the major biomes in Africa?
The temperature is the warmest at the equator because this is where the sun is highest in the sky. Warm air rises, condenses and come down as rain. The African equatorial belt is a place of strong convection (rising air) and precipitations. This is where you find the rain forest. The rising air has to come down somewhere. If it wasn’t for the earth’s rotation and the resulting Coriolis effect that diverts any slow moving fluid to the right in the northern hemisphere, and to the left, in the southern, perhaps that air would go all the way to the poles where it is cold and cold and denser air sinks. But the Coriolis effect makes that air to spin and create two belts of high pressure at roughly latitudes 30 N and 30 S. Because sinking air warms up by the adiabatic effect of a higher pressure, those are belts of calm wind and clear sky. This is where you find the African deserts. The rising and sinking of the air between the equator and sub-tropical high pressure belts is called the Hadley
