The August 1972 solar proton event and the atmospheric ozone layer

Details The August 1972 solar proton event and the atmospheric ozone layer The August 1972 solar proton event and the atmospheric ozone layer

Feb 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979natur.277..458f&link_type=abstract

Nature, vol. 277, Feb. 8, 1979, p. 458-460. Research supported by the Natural Environment Research Council; Bundesministerium fü

Physics

12

Ozone, Ozonosphere, Solar Protons, Stratosphere Radiation, Mesosphere, Nitrogen Oxides, Ozonometry, Photochemical Reactions, Thermosphere, Two Dimensional Models

Scientific paper

Crutzen et al. (1975) have pointed out that large amounts of nitric oxide may be produced by high-energy solar protons, mainly at geomagnetic altitudes greater than 60 deg, and altitudes above about 35 km. A description is presented of ozone measurements made during an intense solar proton event in August 1972. The data suggest that NO production rates due to ionizing particles are higher than those calculated by Crutzen et al. Modelling experiments were performed using the Oxford zonally averaged, two-dimensional model, described in detail by Harwood and Pyle (1977). It is pointed out that the model overestimates the ozone recovery after about 23 August, at the highest latitudes considered, but underestimates it in middle latitudes.

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