Solar Proton Event: Influence on Stratospheric Ozone

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Science  26 Aug 1977:
Vol. 197, Issue 4306, pp. 886-889
DOI: 10.1126/science.197.4306.886


Large-scale reductions in the ozone content of the middle and upper stratosphere over the polar cap regions were associated with the major solar proton event of 4 August 1972. This reduction, which was determined from measurements with the backscattered ultraviolet experiment on the Nimbus 4 satellite, is interpreted as being due to the catalytic destruction of ozone by odd-nitrogen compounds (NOx) produced by the event.