Water droplets absorption efficiency

Figure 7.2 Absorption efficiency of a water droplet ( = 1.20 /xm) the dashed curve is the geometrical optics approximation (7.2).

In Fig. 7.3 we show the absorption efficiency for a water droplet at a wavelength (1.45 jam) where water is considerably more absorbing than at 1.20... 

Hydroxyl radicals will react with organic species within atmospheric droplets, as will any hydrogen peroxide that has not been consumed in oxidizing S(IV) to S(VI) [131]. Faust and Hoigne measured quantum efficiencies for the photolysis of Fe(OH) +, the dominant Fe(III)-hydroxy complex between pH 2.5 and pH 5 [111]. Sea salt water droplets rapidly acidify once ejected into the marine boundary layer, and have pH values within this range. Model calculations using the measured quantum yields of 0.14 0.04 at 313 nm and 0.017 0.003 at 360 nm, and absorption spectra, agree with the measured photolysis rate of... 

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