Chemical response of the middle atmosphere to solar variations

Details Chemical response of the middle atmosphere to solar variations Chemical response of the middle atmosphere to solar variations

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981soph...74..349d&link_type=abstract

(ESA and European Physical Society, ESLAB Symposium on Physics for Solar Variations, 14th, Scheveningen, Netherlands, Sept. 16-1

Physics

7

Atmospheric Chemistry, Middle Atmosphere, Ozone, Solar Activity Effects, Ultraviolet Radiation, Atmospheric Models, Chlorine, Hydrogen, Irradiance, Nitrogen, Oxygen, Ozone Depletion, Radiation Effects

Scientific paper

A one-dimensional model of the presence of odd O, H, N, and Cl species in the middle atmosphere is presented as a function of solar variations. Ozone production rates and concentration as determined by different experimenters are compared, noting that production rates calculated for below 80 km are dependent on the type of extrapolation rates adopted above 175 km, where O2 depletion to O3 occurs. Ozone production rates of HO and HO(x) radicals and atomic H were recorded, with increases of OH and HO2 above 80 km being correlated with rises in solar activity. The transport of radical species is considered, and oxygen presence at the top of the atmosphere is shown to be reduced due to the presence of an O3 column, which absorbs the UV radiation.

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