(a) Computed number densities of H2O5 (molecules cm-3), at local noon at 75°S, at various altitudes in the stratosphere.
(b) Computed daily variations of number densities of H2O5 (molecules cm-3), at 75°S at various altitudes.
Full lines show variation with continuous photolysis from noon on day 51 to noon on day 52 after the solstice; broken lines show variation from noon on day 55 to noon on day 56 with interrupted photolysis. The two hours in the latter interval when the sun is below the horizon are shown as shaded. [Adopted from Farman et al., 1985]
![[]](../../image/igloo.gif)
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