Global temperatures and rainfall 0.0 / 5 ? GeographyWeather and climateGCSEEdexcel Created by: Rose356Created on: 11-04-19 14:16 Low Pressure When the land and air heats, the air expands and rises as it becomes lighter 1 of 8 High Pressure As the sea takes longer to heat, the air remains dense and cold 2 of 8 ITCZ InterTropical Convergence Zone - forms when two air masses meet(converge) on the tropics 3 of 8 Global Circulation Model The theory in which the atmosphere works in the three cells on each side of the Equator 4 of 8 Hadley Cells Huge cells of air that cool as it descends and heats as it rises in a cycle. It creates high and low pressure. Located on the Equator 5 of 8 Ferrel Cells Like Hadley Cells but the other side of the tropics. In the middle of the Hadley and Polar Cells 6 of 8 Polar Cells Like the Hadley Cells. At the very north/south of the earth next to the Ferrel Cells 7 of 8 Global Rainfall ITCZ never reaches deserts on the equator, or north/south of the tropics. When the Ferrel and Polar cells coverge, they create frontal rainfall. 8 of 8
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