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Atmospheric Chemistry Global Warming

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GasMole Percent N278.08 O220.95 Ar0.934 CO 2 0.03 O3O3 1.0 x 10 -7 Composition of Atmosphere:

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CO 2 Levels

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E out = T 4 = 5.67 x 10 -8 W/m 2 K 4 = Albedo Earth = 0.28 Mars = 0.17 Jupiter = 0.73 Venus = 0.71 Es = solar energy input Earth = 1380 W/m 2 Mars = 600 Venus = 2600 Jupiter = 49 If E in = E out, then Global Energy Balance :

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= 5.67 x 10 -8 W/m 2 K 4 = Albedo Earth = 0.28 Mars = 0.17 Jupiter = 0.73 Venus = 0.71 E s = solar energy input Earth = 1380 W/m 2 Mars = 600 Venus = 2600 Jupiter = 49 Try for Earth: Calculate average temperature of Earth Of Venus?

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Greenhouse Effect: some energy radiated back to space is captured and re-radiated back to Earth. f = IR transmission factor So: E out = f T 4

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= 5.67 x 10 -8 W/m 2 K 4 = Albedo Earth = 0.28 Mars = 0.17 Jupiter = 0.73 Venus = 0.71 E s = solar energy input Earth = 1380 W/m 2 Mars = 600 Venus = 2600 Calculate IR transmission factor for Earth: T actual = 291 K Calculate IR transmission factor for Venus: T actual = 750 K

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