Physics
Scientific paper
Apr 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983georl..10..257s&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 10, April 1983, p. 257-2260. Research supported by the U.S. Defense Nuclear
Physics
59
Atmospheric Chemistry, Mesosphere, Ozone, Ozone Depletion, Solar Activity Effects, Solar Protons, Noaa 6 Satellite, Photochemical Reactions, Photoionization, Solar Mesosphere Explorer, Water Vapor
Scientific paper
The proton fluxes observed by the NOAA-6 satellite are used to calculate the ionization rates during the solar proton event of July 13, 1982. The proton fluxes are determined to have been almost as large as those of the August 1972 event near 70 km, but much smaller at lower altitudes. This ionization is shown to lead to the production of odd hydrogen radicals (H + OH + HO2) which catalytically destroy odd oxygen in the mesosphere and stratosphere. A one-dimensional time-dependent model is used to calculate the percentage change in ozone resulting from this event. The calculated ozone depletion is then compared to that observed by the Solar Mesosphere Explorer satellite.
Reid George C.
Rusch David W.
Solomon Sean
Thomas Robert J.
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