sci245waterDiagram

sci245waterDiagram - THE EFFECTS OF WATER DIAGRAMS The...

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THE EFFECTS OF WATER DIAGRAMS The Effects of Water Diagrams University of Phoenix SCI/245
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Deserts occurs in 2 broad belts, at 20-30o north and south of the Equator, along the Tropics of Cancer and Capricorn. Desert areas develop under the influence of the quite permanent high-pressure areas. The earth rotates around its axis at about 1676 km per hour at the equator but at nearly zero speed at the poles. Hot air at the equator rises and spreads north and south before cooling and it condenses and releases its moisture over the tropical zones. An equatorial zone of low atmospheric pressure is created. The two tropical zones are at high pressure. Nearer to the poles are 2 low-pressure belts of cold. The polar regions have descending air and high pressure. As the denser air sinks towards the ground to the 2 subtropical high-pressure belts, wind is created (easterly trades), which is hot and completely lacking of moisture, blowing across the Sahara, the Middle East and the North America. As air rushing into the low pressure regions rises, cools and then drops, these regions get most of the
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This note was uploaded on 03/07/2012 for the course SCI 245 taught by Professor N/a during the Spring '09 term at University of Phoenix.

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sci245waterDiagram - THE EFFECTS OF WATER DIAGRAMS The...

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