Atmospheric Transmission Beer's Law

3/31/10Based on their appearance what would you concludeabout the spectral dependence of β e and ω for……• Diesel exhaust fumes?Scatters some light, butappear rather dark gray,suggesting that the SSAis greater than zero butmuch less than one.Color is rather neutral, sospectral dependence issmall.Based on their appearance what would you concludeabout the spectral dependence of β e and ω for……• A cloud-free atmosphere?The setting sun (which is seenvia a rather long path throughthe atmosphere) is reddish,suggesting that extinction isgreater for shorter wavelengths.Much of the radiation that isextinguished is seen in otherdirections as scattered radiation-- i.e., the blue sky; hence, weconclude that the SSA isreasonably close to unity.6