Reports

Solar Proton Events: Stratospheric Sources of Nitric Oxide

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Science  08 Aug 1975:
Vol. 189, Issue 4201, pp. 457-459
DOI: 10.1126/science.189.4201.457

Abstract

The production of nitric oxide (NO) in the stratosphere during each of the solar proton events of November 1960, September 1966, and August 1972 is calculated to have been comparable to or larger than the total average annual production of NO by the action of galactic cosmic rays. It is therefore very important to consider the effect of solar proton events on the temporal and spatial distribution of ozone in the stratosphere. A study of ozone distribution after such events may be particularly important for validating photochemical-diffusion models.

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