Physics
Scientific paper
Feb 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999georl..26..299m&link_type=abstract
Geophysical Research Letters, Volume 26, Issue 3, p. 299-302
Physics
11
Atmospheric Composition And Structure, Atmospheric Composition And Structure: Aerosols And Particles, Atmospheric Composition And Structure: Chemical Kinetic And Photochemical Properties, Atmospheric Composition And Structure: Middle Atmosphere-Composition And Chemistry
Scientific paper
Rates of aerosol-mediated reactions involving inorganic halogen species are small but non-negligible for moderate aerosol abundances at temperatures of 200-210 K. We have used a photochemical model to demonstrate that at these temperatures such reactions provide a significant sink for HCl. Gas-phase production rates are slower for HCl than for ClNO3. The net result is perferential partitioning of Cly into [ClNO3] to compensate for the accelerated loss of [HCl]. Under such conditions, [HNO3] decreases in response to enhanced partitioning of NOy into [ClNO3]. The results indicate a high sensitivity and synergistic response of HCl, ClNO3, and HNO3 distributions to aerosol content and temperature
Michelsen Hope A.
Spivakovsky C. M.
Wofsy Steven C.
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