Application to high-latitude composition

作者: Dominique Toublanc

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摘要: We present a study on diurnallynd annuallyverged wlues of the actinic fluxes used in one-dimensional (l-D) photochemical models, as well  3-D rditive transfer model, bsed Monte Carlo calculations withpplication to thetmosphere Titan. This shows that commonly vlue 0 -30 o for mean incident anglet equator models Titan is not best choice, though changing wlue has no dramatic effects photochemistry. The results code give directccess photolysis rtes t any point thetmosphere. necessity indeep atmosphere such Titan's demonstrated prticulrly high-ltitude winter conditions. These rtesre model ltitudinl variations chemical composition Titn's 1-D modeldapted different ltitudes. these kinds simple cnnot reproduce observed latitudinal behaviornd we need develop rel 2-D Titan'stmosphere.

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