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Science 26 August 1977:
Vol. 197. no. 4306, pp. 886 - 889
DOI: 10.1126/science.197.4306.886
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Articles

Solar Proton Event: Influence on Stratospheric Ozone

DONALD F. HEATH 1, ARLIN J. KRUEGER 1, and PAUL J. CRUTZEN 2

1 NASA Goddard Space Flight Center, Greenbelt, Maryland 20771
2 Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Boulder, Colorado 80302, and Upper Atmosphere Project, National Center for Atmospheric Research, Boulder, 80303

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.

Submitted on July 19, 1976
Revised on June 27, 1977


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