Mineral dust aerosols constitute a major fraction of airborne particulate matter and their contribution to the Earth’s climate system is of considerable significance. In particular, dust aerosols exert a significant effect on global radiative budget by scattering and absorbing longwave (LW) and shortwave (SW) radiation, thereby impacting the vertical profile of temperature and atmospheric stability as well as the precipitation rate. In addition, it has been shown that the mixing of desert dust layer with polluted plume may lead to some unexpected interface chemistry. In this talk, we will present a series of chamber experiments aiming at studying the regional variability of desert dust optical properties (both SW and LW) as well as their chemical reactivity. Example of impact on radiative transfer calculation and on satellite retrieval will be given.

This event is part of the eventgroup Meteorology Colloquium Karlsruhe

Homepage
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Speaker
Prof. Jean-Francois Doussin

University Paris-Est Créteil Val de Marne (UPEC)
Laboratoire Interuniversitaire des Systèmes Atmosphériques Faculté des Sciences

Organizer
Institut für Meteorologie und Klimaforschung
Karlsruher Institut für Technologie (KIT)
Hermann von Helmholtz Platz 1
76344 Eggenstein-Leopoldshafen
Tel: 0721-608-0
Mail: sekretariat ∂does-not-exist.imk-asf kit edu

Targetgroup
Interested / Everyone