Climate: Factors That Affect Precipitation Objective: Explain what affects precipitation and its role in climate.

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Presentation transcript:

Climate: Factors That Affect Precipitation Objective: Explain what affects precipitation and its role in climate.

Precipitation & Climate The amount of precipitation is 1 of the 2 factors that determines a city’s climate.

What affects precipitation? 2 natural factors affect precipitation Prevailing winds & Mountain ranges

What is a prevailing wind? A prevailing wind is a wind that blows more often from one direction than from any other.

Prevailing Winds & Moisture The amount of moisture the wind carries is dependant on 2 things: how the wind forms & direction from which it blows

Wind Formation Winds form either by: Rising warm air brings precipitation OR Sinking cool air brings little precipitation

Wind Direction Land breeze (land water) Brings little precipitation Sea breeze (water land) Brings more moisture

Mountain Ranges & Precipitation Mountain ranges: act as a barrier to the prevailing winds & they force the air to rise, which cools it & causes precipitation

Sides of the Mountain Windward side: side that face the wind Receives most of moisture Leeward side: side that faces a way from the wind Receives little moisture

Diagram of Windward/Leeward

Summary 1. Add questions to the left column of your notes. 2. In place of a summary please answer the following question: How is it possible for a desert to exist next to a large body of water?