Drought

Created by: gsc
Created on: 10-03-13 10:51

What is a drought?

A drought is a long period when rainfall is below average.

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Why are water supplies depleted during a drought?

People keep using them and they aren't replenished by rainfall. Droughts are also accompnied by hoghj temperatures which increases thre rate of evaporation, so water supplies are depleted faster.

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What is the length of a drought

the length of a drought is different in different places, eg. It only lasts for a few days in Britain but can last for years in African countries.

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What are the climatic conditions that cause periods of droughts

1)Changes in atmosphere circulation means it doesn't rain much for years, eg. in Ethopia 2) Annual rains fail due to changesin atmosphere crculation, eg. monsoon fails in India sometimes.3) High pressure weather systems block depressions, Eg . in U.K

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Which areas are most affected by droughts

Noth eastern africa.

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Other cards in this set

Card 2

Front

Why are water supplies depleted during a drought?

Back

People keep using them and they aren't replenished by rainfall. Droughts are also accompnied by hoghj temperatures which increases thre rate of evaporation, so water supplies are depleted faster.

Card 3

Front

What is the length of a drought

Back

Card 4

Front

What are the climatic conditions that cause periods of droughts

Back

Card 5

Front

Which areas are most affected by droughts

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Drought