ERTH 20 Lecture Notes - Lecture 17: Solar Irradiance, Latent Heat, Heat Capacity
13 Oct 2020
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Document Summary
Long-term energy balance there is a balance between the total amount of energy received by earth and its atmosphere as insolation on one hand, and the total amount of energy returned to space on the other. Global energy budget: the annual balance between incoming and outgoing radiation. About 31 units of total insolation are reflected (or scattered) back into space by the atmosphere and the surface. The albedo of earth, therefore, is about 31 percent. Only 24 units of incoming solar radiation warm the atmosphere directly. 3 units of radiation are absorbed by ozone. Another 21 units are absorbed by gases and clouds as incoming radiation. 45 units of insolation nearly half of the total simply transmit through the atmosphere to. Earth"s surface where it is absorbed, warming the surface. 4 units of energy are conducted from earth"s surface back into the atmosphere. About 19 units of energy pass into the atmosphere as latent heat stored in water vapor,
