lect3 - Climate Is there a general pattern for the location...

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Climate : the average state of the weather at a particular location on the planet. Climate Is there a general pattern for the location of the major terrestrial biomes on the Earth? In general, tropical rain forests are found near the equator. The major deserts are found at approximately 30° latitude. Chaparral is found between ~ 30-40° latitude. Tundra is found near the poles. There are exceptions to this patterns; however, trends in climate associated with latitude have a large role in determining the biomes found at particular places on Earth. What determines climate? Four important factors are: temperature, light, precipitation, wind
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Temperature 1. Global Mean Temperature: Greenhouse effect - also affects day/night variation in temp. UV, visible and short-wave infrared radiation Long-wave infrared radiation At night, only the long-wave interactions occur. Across the entire Earth, there is no net loss or gain of radiant energy. 100 in ~ 100 out The 98 units of long-wave radiant energy returned to the ground by the atmosphere are important! Only 45 units of high energy are absorbed and 113 units of long-wave thermal energy are lost. there is a net loss (cooling) of energy without reflection.
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Temperature 1. Global Mean Temperature: Greenhouse effect - also affects day/night variation in temp. The atmosphere moderates the global temperature. The average global temperature is about 16 o C. Without the atmosphere the average temperature of the earth's surface would be about 0 o F (approximately -20 o C).
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Temperature 2. Annual Mean Temperature - locations at different latitudes on the Earth’s surface receive
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This note was uploaded on 04/19/2008 for the course BIOL 5c taught by Professor Walton during the Spring '08 term at UC Riverside.

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lect3 - Climate Is there a general pattern for the location...

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