Computer Science
Scientific paper
Aug 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986p%26ss...34..655r&link_type=abstract
Planetary and Space Science, Volume 34, Issue 8, p. 655-664.
Computer Science
Scientific paper
Comparison of the altitude profiles of HCl obtained by balloon-borne instruments during the BIC-1 and BIC-2 campaigns with photochemical model results indicate higher concentrations between 25 and 40 km than those predicted by the models. We discuss different mechanisms which could alleviate this discrepancy including changes in the partitioning of ClY species in the middle stratosphere. The magnitude of the discrepancy (about a factor of 2 near 30 km) cannot be explained by uncertainties in any single chemical mechanism adopted in present models. The discrepancy is greatly reduced, however, if we assume that the reaction ClO + HNO3 --> NO2 + HCl + O2 has a rate between 10-15 and 10-14 cm3 s-1. Inclusion of the above reaction in present models does not violate constraints placed by observations of ClO, ClNO3, and C2H6. These results point to the need to measure the rate of this reaction.
Dak Sze Nien
Ko Malcolm K. W.
Rodriguez Josém.
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