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ch.3-hw - nothing Also the types of clouds affect the...

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10/5/2009 Our Changing Environment Chapter 3 5. H2O is the major contributor to earth’s albedo. This includes the water vapor found in ice and clouds. 7. Troposphere, stratosphere, mesosphere, thermosphere. Troposphere extends from the earths surface to 10-15 km. Stratosphere is located from 10-15 up to 50km. Mesosphere is from about 50 km to 90 km and its temperature increases once again in the uppermost layer. Thermosphere is the area anything above 90 km. 8. Convection, conduction and latent heat are three ways that heat can be transferred. Convection and conduction are the two most important in the earth’s global energy budget. 11. Clouds affect the planets energy balance in two opposing ways. During the daytime the clouds affect the earth’s temperature by reflecting sunlight back into space. Also, with clouds the earths albedo is .3, without clouds, the earth’s albedo would be virtually
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Unformatted text preview: nothing. Also the types of clouds affect the temperature of the earth. Low, thick clouds will cool the surface because it is their primary cause. High, thin clouds tend to warm the earth’s surface because they contribute more to the greenhouse effect. The elongated ice crystals of these higher clouds allow much of the solar radiation to pass through, but absorb most of the outgoing radiation. In contrast, lower clouds reflect most of the solar radiation in addition to absorbing infrared radiation. Also, these higher clouds (cirrus) are colder because they occur higher in the troposphere. 12. The water vapor feedback and the snow and ice albedo feedback are two positive feedback loops in the earth’s climate system. The earth’s climate remains stable because of related factors such as latitudinal and seasonal temperature gradients, winds, precipitations and seasons....
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