MET4301_2 - 1. Solar energy 2 W/m 1376 S constant Solar ∝...

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Unformatted text preview: 1. Solar energy 2 W/m 1376 S constant Solar ∝ 2 2 2 W/m 344 S/4 R /4 R S is surface s earth' the of area unit per by received Energy = = π π . Wm 240 )- (1 0.3. of mean value a earth with the of albedo the is . )- (1 is earth by absobed energy actual the earth, by the scattered or reflected energy g Considerin 2 4 S 4 S = α α α 2. Radiative Equilibrium model . K Wm 5.7x10 , T E : law Boltzman - Stefan 4- 2- 8- 4 = = σ σ C-18 255K T , T 4 S )- (1 240 4 = = = = σ α (tropics). C 40 region), (polar C 40- C 14.3 T = 3. Greenhouse effect 4 g T U σ = e=0 ----> radiative equilibrium model. e=1----> I=B In the real atmosphere, the absorbing materials are distributed continuously in the vertical. These include clouds, greenhouse gases such as water vapor, co2, O3,etc I e- 2 2 U T 4 g = = σ B- U I = B e)U- (1 I + = 4 S )- (1 I α = 4 g T U σ = Too cold 4. Effects of atmospheric convection The Earth system were in a radiative equilibrium, it would not be in a dynamic equilibrium because the air near surface...
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This note was uploaded on 07/04/2008 for the course MET 4301 taught by Professor Drpingzhu during the Spring '08 term at University of Miami.

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MET4301_2 - 1. Solar energy 2 W/m 1376 S constant Solar ∝...

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