Aura MLS HCl Depletion and PSC-Induced Areas in the Antarctic

The work presented here evaluated chlorine activation via sulfate aerosol (SA) in the Southern Hemisphere 2006 stratosphere, based on satellite measurements of water vapor (H2O) and constant values of SA, by implementing the TACL formula of [1] in contrast to the TNAT formula of [2]. The results indicated that the former formula was not completely sufficient for accurately modeling areas of depleted HCl and chlorine deactivation for all pressure surfaces in the Antarctic stratosphere. Based on the results of this study, the role of SA in chlorine activation appears to be more important at lower altitudes than for areas higher in the stratosphere.

Autorentext

My scientific research focuses on polar stratospheric clouds, chlorine activation and the chemical-dynamical processes that ultimately destroy stratospheric ozone above the poles but mainly in Antarctica. Further interests: polar atmospheric chemistry fundamentals, chlorine activation, environmental sciences and climate change.