Physical causes of drought
- Created by: herbert1408
- Created on: 30-06-20 09:27
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- Physical causes of Drought
- when regular weather patterns have been disturbed
- above average presence of dry, high pressure systems
- El Nino
- brings desending air and high pressure
- As Global temperatures increase...
- more water is needed to grow crops
- more water is lost through evaporation
- The presence of the ITCZ
- this is a low pressure belt which encircles the globe around the equator.
- where trade winds from the northeast and southeast meet
- the earth tilted orbit makes the zone migrate between the tropics
- this causes dry and wet seasons in africa
- when regular weather patterns have been disturbed
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