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Earth's energy balance

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Joseph Leydon

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Geography Lecture #3 January 18, 2011 Earths Energy Balance the sun emits radiation in a spectrum- UV, infared, etc different gasses absorb different types of radiation clouds have the property of reflecting radiation to space- wave hits the cloud and bounces back up to space, doesnt change wavelength, just reflects back white surfaces reflect whereas dark or black surfaces absorb radiation can get scattered by particles and clouds that bend them therefore a smaller amount of radiation makes it to the surface the solar constant is the amount of solar radiation we receive at the top of the atmosphere Fate of incoming solar radiation (short wave) scattering: gas molecules and dust change direction of radiation
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