TEST OF PHOTOCHEMICAL PROCESS OF MESOSPHERIC OZONE DURING THE TOTAL SOLAR ECLIPSE

This paper studies the variation of atmospheric ozone and O₂(¹△g) during total solar eclipse using the 1D time-dependent photochemical model of nitrogenhydrogen-oxygen atmosphere. And the test of photochemical models is made through the comparison with the observed data. The results show that the effective altitude of the variation of solar irradiance on 1.27μm airglow during total solar eclipse is obviously lower than that in twilight. The observed altitudes of atmospheric ozone during this total solar eclipse is about 52-67km from 1.27μm airglow emission and the observed increase of the ozone contents in Mohe is about 50% during the eclipse of March 9, 1997. It is consistent with the results of theoretical analyses of nitrogen-hydrogen-oxygen atmosphere. It exhibits no ozone deficit in the altitude of 52-67 km.