ES271_Rainfall_Fall_2010

ES271_Rainfall_Fall_2010 - Rainfall Patterns Differential...

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Rainfall Patterns Differential warming and cooling of water and land Temperate areas prevailing westerlies -> wind comes off water on to land on the west coast Water tends to be warmer than land at Northern latitudes Wind coming off water cools, and tends to drop water as rain. British Columbia and Southern Chile Drenched with almost continual rains, particularly in the winter
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U.S. West Coast Oregon and Northern California Land is a bit warmer than the water in the summer. In the winter the land is cooler than the water Southern California Land is almost always warmer than the ocean. Little rain results except in the high mountains. The westerlies here are “thirsty”
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Not only is the land quite warm, the water is much colder Strong local winds pulling water away from the coast. Coriolis force Upwelling Water coming from the deep is both cold and nutrient rich. These factors, plus the latitude
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This note was uploaded on 10/06/2010 for the course ES ES271 taught by Professor Machaut during the Spring '10 term at Colby.

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ES271_Rainfall_Fall_2010 - Rainfall Patterns Differential...

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