Physics
Scientific paper
Aug 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90.7945m&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 90, Aug. 20, 1985, p. 7945-7954.
Physics
17
Ozone, Ozone Depletion, Solar Backscatter Uv Spectrometer, Solar Cycles, Solar Protons, Solar Terrestrial Interactions, Atmospheric Ionization, Nimbus 7 Satellite, Satellite Observation, Ultraviolet Radiation, Zenith
Scientific paper
It is pointed out that during a solar proton event (SPE), large numbers of high-energy protons penetrate the earth's mesosphere and upper stratosphere and perturb the normal chemistry by ionizing molecules and changing the balance of odd nitrogen, oxygen, and hydrogen. Changes in ozone caused by an SPE are produced very rapidly, typically in a matter of hours, and are confined to a limited geographic area, the region above 60 deg geomagnetic latitude. In this paper, an analysis is reported of the response of ozone to the significant SPE's in solar cycle 21 from the Nimbus 7 launch in October 1978 to date, using data from the solar backscattered ultraviolet instrument (SBUV). Ozone data during 15 SPE's were examined. It was found that ozone depletion occurred during SPE's on at least five dates.
Jackman Charles H.
McPeters Richard D.
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