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Drought

The document describes three types of rainfall: relief rainfall which occurs when warm, wet air rises over high land and cools to form clouds and precipitation; frontal rainfall which happens when warm air meets cold air, the warm air is forced over the cold air where it cools and condenses to form clouds and rain; and rain shadows which are dry areas on the leeward side of mountains where precipitation systems are blocked from reaching due to the terrain.

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Ryan Ramkirath
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38 views2 pages

Drought

The document describes three types of rainfall: relief rainfall which occurs when warm, wet air rises over high land and cools to form clouds and precipitation; frontal rainfall which happens when warm air meets cold air, the warm air is forced over the cold air where it cools and condenses to form clouds and rain; and rain shadows which are dry areas on the leeward side of mountains where precipitation systems are blocked from reaching due to the terrain.

Uploaded by

Ryan Ramkirath
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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SLIDE 6

Relief Rainfall

Stage 1.
Warm wet air is forced to rise over high land.

Stage 2.
As the air rises it cools and condenses. Clouds form and precipitation occurs.

Stage 3.
The drier air descends and warms.

Stage 4.

Any moisture in the air (e.g. cloud) evaporates.

SLIDE 7

Frontal Rainfall
Stage 1.
An area of warm air meets and area of cold air.

Stage 2.
The warm air is forced over the cold air

Stage 3.
Where the air meets the warm air is cooled and water vapour condenses.

Stage 4.
Clouds form and precipitation occurs

SLIDE 9

A rain shadow is a patch of land that has been forced to become a desert because mountain ranges
blocked all plant-growing, rainy weather. On one side of the mountain, wet weather systems drop rain and
snow. On the other side of the mountain—the rain shadow side—all that precipitation is blocked.

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