Chapters 2,3, and 4 - Chapter 2: Solar energy to Earth and...

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Chapter 2: Solar energy to Earth and the Seasons Sun produces 8% UV, X, and gamma rays 45% Infrared 47% visable light Releases short wave radiation Earth releases long wave because it is cooler Blackbody radiator- absorbs all energy received and emits all it receives Energy at the top of the atmosphere Thermopause- 480km above thw surface, outer boundary of of earth’s energy system. We receive 1/2billion of suns output Insolation - radiation arriving at the atmosphere and surface Solar constant- Insolation at the top of the atmosphere Average insolation when earth is at it’s average distance from the sun 1372watts/ square meter ½ actually makes it to the surface Sall changes have great effect on the earth Subsolar point- point at which rays are perpendicular to the surface The higher the latitude, the less the angle of the sun Equitorial thermopause receives 2.5 times the energy than the poles While the northpole receives radiation, the south does not and visa versa Seasons Seasonality- both the seasonal variations of the sun’s position above the horizon
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This note was uploaded on 04/14/2008 for the course GEOG 1111 taught by Professor Hopkins during the Spring '08 term at University of Georgia Athens.

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Chapters 2,3, and 4 - Chapter 2: Solar energy to Earth and...

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