The Photochemical Equations

As shown by Nicolet (1965), NO and NO2 are in mutual equilibrium through the reactions (l)-(3) and therefore 

Making use of Eq. (20) we write for the time rate of change of odd oxygen and therefore ozone below 50 km 

The daily production and destruction for odd oxygen below 50 km have been estimated for conditions at the Equator. The observed ozone distribution was taken from Diitsch (1964). The results of the computations are shown in Table 3.1. 

Altitude (km) Concentrations at noon per cm Volume mixing ratio Volume mixing ratio  

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