Consider the following reactions and rate constants relevant to the ozone layer (Chapman
Model),
02 + hv → 0+0
J1 = 10-14 exp [1/4(= - 15)] at and above 15 km
J1 = 0 below 15 km
0 + 02 + M → 03 + M
kz=6x10-34 （T/300）23
03 + hv → 02 + 0
J3 = 10-3 exp [1/10(= - 30)] at and above 30 km
J3 = 10-3 below 30 km
0 + 03 → 02 + 02
ka = 4x10-11 exp (-2060/T)
with the total molecular density [M] = 2.5x101% exp (-z/7) cm- where units are km for z, s' for
Ss, cm' s-' for k2, and cm' s' for k4. Assuming a photochemical steady state for odd oxygen and ozone (i.e., ignore transport), compute [03] at altitudes of 0, 15, 30, 45, and 60 km where the temperatures are 283, 213, 233, 263, and 253 K, respectively.