Computer Science – Numerical Analysis
Scientific paper
Oct 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991georl..18.1853p&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 18, Oct. 1991, p. 1853-1856.
Computer Science
Numerical Analysis
2
Aerosols, Atmospheric Chemistry, Nitrogen Oxides, Ozone Depletion, Sulfates, Nitric Acid, Numerical Analysis, Removal, Stratosphere, Two Dimensional Models
Scientific paper
A sensitivity study is carried out for the dependence of the polar ozone loss rate on the value of the sticking coefficient gamma for the reaction converting odd nitrogen into nitric acid on sulfate aerosols. In this study, a 2D model including nitrogen and chlorine families is used along with an explicit condensation mechanism for polar stratospheric clouds (PSC) and a fixed distribution of background sulfate aerosols in the lower stratosphere. If only background aerosols are included, negligible changes in total ozone are observed (up to about 1 percent) when gamma is increased from 0.02 to 0.14. If PSCs are added, the same test produces a significant reduction of the ozone hole depth in Antarctica.
Pitari Giovanni
Visconti Guido
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