(Geography) Relief, Convectional and Frontal Rainfall
- Created by: Emily Forrester
- Created on: 23-05-13 19:25
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- Geography- Rainfall
- Releif
- 1) Mass of moist air reaches a range of hills and is forced to rise.
- 2) Rising air cools to form less water vapour, then condenses into clouds.
- 3) Further cooling occurs and droplets turn into rainfall
- 4) Water warms as it falls. This area is drier and creates a rain shadow.
- Convectional
- 1) When earth is heated by sun, air above is warmed up.
- 2) Rises as convection currents and during rising the air cools down.
- 3) Vapour condenses and forms tall clouds.
- 4) Water droplets grow large and air cannot support them, this causes torrential rainfall often with thunder.
- Frontal
- 1) Mass of warm moist air meets cold air, this is called a front.
- 2) Warm, light air is forced to rise over cold heavy air
- 3) As air rises it cools and condenses into clouds
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- Releif
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