Physics
Scientific paper
Apr 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983georl..10..341k&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 10, April 1983, p. 341-344. Research supported by the Chemical Manufacturers
Physics
23
Atmospheric Chemistry, Atmospheric Models, Ozone, Stratosphere, Free Radicals, Hydroxyl Radicals, Ozone Depletion
Scientific paper
The impact of recent revisions in rate data for several key reactions (NASA-JPL, 1982) on model calculations using a one-dimensional stratospheric model is examined. Results show that the incorporation of these revisions into the model leads to higher OH concentrations in the upper stratosphere, as well as a higher concentration of ClO in the upper stratosphere, which appears to be in good agreement with observations. However, it is found that the calculated upper stratospheric ozone concentration is significantly reduced as a result of higher OH and ClO and the faster rate for O + HO2. It is determined that the use of a smaller O2 cross-section in the Herzberg continuum implies an even lower ozone concentration in the upper stratosphere, which results in less agreement between model and observations. In addition, the effects of the rate data revisions on the calculated steady state ozone depletion due to the release of CFCs are discussed.
Ko Malcolm K. W.
Sze Nien-Dak
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