Abstract
The annual mean and the annual amplitude of ozone have been derived from ozone measurements from the SBUV and SBUV/2 spectrometers on board the Nimbus‐7 and NOAA‐11 satellites. These values differ significantly from values calculated using a two‐dimensional model of stratospheric photochemistry and dynamics with standard chemistry. We have found that the differences between the calculated and data‐derived values are considerably improved by changing the partitioning in the Cly family to create a larger reservoir of HCl and reducing ClO. This is accomplished by including a channel for the products HCl+O2 from the reaction ClO+OH in addition to the products Cl+HO2. This partitioning also improves the agreement between the calculated and measured values of ClO/HCl ratio.
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