Ozone profiles obtained from ECC sondes three to six months after the eruption, and aerosol profiles from a lidar system, show a strong correspondence between decreased ozone and peak aerosol loading. Chemical, radiative and dynamic mechanisms are discussed. These reactions may cause almost complete conversion of HCl into ClOx radicals, leading to rapid ozone destruction. W.C. Lineberger, J. Chem. Describes characteristics of the Mt. Pinatubo cloud during the first six months after the eruption, with comparison to the El Chichon eruption.
Stratospheric aerosols play an important role in the formation of polar stratospheric clouds.
Presents basic results from an extensive set of lidar echos collected from May-October 1988, analyzing the relationship between backscattering cross section and temperature, and statistical properties. Discusses microphysical interpretation, distinction between Type I and Type II polar stratospheric clouds, and seasonal evolution. Chem., Free Univ. J. of Physical Chem. Meteor., Free Univ.