Observations of ozone depletion associated with solar proton events

Details Observations of ozone depletion associated with solar proton events Observations of ozone depletion associated with solar proton events

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....8612071m&link_type=abstract

Journal of Geophysical Research, vol. 86, Dec. 20, 1981, p. 12071-12081.

Computer Science

Sound

29

Atmospheric Chemistry, Ozone, Ozone Depletion, Photochemical Reactions, Satellite Observation, Solar Activity Effects, Solar Protons, Atmospheric Models, Reaction Kinetics, Satellite Sounding, Stratosphere, Time Dependence

Scientific paper

Ozone profiles from the solar proton events (SPE) of January and September 1971 and August 1972 were obtained after the backscattered ultraviolet (BUV) measured radiances were corrected for the direct effects of protons on the instrument. The SPE of August 1972 produced an ozone depletion of 15% at 42 km that persisted for one month in both northern and southern polar regions. This long recovery time indicates that NO(x) was produced in a quantity sufficient to alter the ozone chemistry. The two SPE in 1971 were of moderate size, but produced ozone depletions of 10-30% at 50 km with a 36 hour recovery time. This rapid recovery is consistent with the assumption that HO(x) is responsible for altering the ozone chemistry (Weeks et al., 1972). The magnitude of the observed depletion, however, exceeds that predicted by the chemical models.

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