lec9 (1) - R. G. Prinn 12.806/10.571: Atmospheric Physics...

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R. G. Prinn 12.806/10.571: Atmospheric Physics & Chemistry, March 7, 2006 Figure by MIT OCW. Interactions Between Air Pollution and Climate UV N 2 O CFCs Lightning Stratosphere O( 1 D) OH NO HO 2 OH OH BC H 2 O CH 4 CO SO 2 OH O 2 UV CO 2 CO 2 O 2 NO 2 O 2 Hydrosphere Biosphere & Human Activity HNO 3 Primary & Secondary Pollutants Greenhouse Gases Reactive Free Radical/Atom Less Reactive Radicals Reflective Aerosols Absorbing Aerosols (BC) O 3 H 2 SO 4 COMPONENTS OF ATMOSPHERIC CHEMISTRY MODELS DYNAMICAL EQUATIONS MASS CONTINUITY EQUATION MOMENTUM EQUATIONS THERMODYNAMIC EQUATION CHEMICAL CONTINUITY EQUATIONS RADIATION EQUATIONS Winds , eddy diffusion coefficients Temperature Rates for Heating Rates for Chemistry Concentrations (O 3 , etc.) For unpredicted green house gases use scenarios or extrapolations For source gases use predictions, extrapolations or scenarios UV Fluxes For photodissociation rates { { [i] t = P i - L i - .
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lec9 (1) - R. G. Prinn 12.806/10.571: Atmospheric Physics...

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