Differences in the reactivity of type I polar stratospheric clouds depending on their phase
Article first published online: 21 SEP 2012
Copyright 1996 by the American Geophysical Union.
Journal of Geophysical Research: Atmospheres (1984–2012)
Volume 101, Issue D2, pages 3885–3890, 20 February 1996
How to Cite
1996), Differences in the reactivity of type I polar stratospheric clouds depending on their phase, J. Geophys. Res., 101(D2), 3885–3890, doi:10.1029/95JD03009., and (
- Issue published online: 21 SEP 2012
- Article first published online: 21 SEP 2012
- Manuscript Accepted: 24 SEP 1995
- Manuscript Received: 22 JUN 1995
It has been suggested that some Type I polar stratospheric clouds (PSCs) are supercooled liquids containing sulfuric acid, water, and nitric acid. We show that the activation of chlorine over supercooled liquids is comparable to that over solid Type I PSCs at the same temperature. Furthermore, at temperatures within a few degrees of the frost point, the reactions of ClONO2 with HCl and H2O, that of HOCl with HCl, and the hydrolysis of N2O5 would be faster if Type I PSCs are liquid solutions rather than solids. Thus chlorine can be rapidly activated without the formation of solid Type I PSCs.