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Etude de l'aérosol atmosphérique en Europe : observations et modélisation en sites d'altitude

Abstract : The atmospheric aerosol has an impact together on the environment because of its direct and indirect effects on radiation and on human beings because of its toxicity. However its physical and chemical properties are not well known. This thesis had two main goals. First, to monitor the aerosol soluble fraction (mineral and organic) in an ice core from Mont-Blanc and on the filters from 6 European sites with various geographic and climatic features (wihch belong to the CARBOSOL project). These measurements have shown the main role of convection in the aerosol transport (particularly for sulphate) from atmospheric lower layers to free troposphere. Consequently, in the second part of this work, the ability of the chemistry-transport model MOCAGE to transport aerosols has been evaluated for a 210Pb simulation ranging from 2002 to 2004. Results have been compared with measurements from the 6 CARBOSOL sites. Finally, a sulfur chemistry has been included in MOCAGE and evaluated for the summer 2003.
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Contributor : Ingrid Etchevers <>
Submitted on : Friday, September 17, 2010 - 3:19:26 PM
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  • HAL Id : tel-00518944, version 1



Ingrid Dombrowski-Etchevers. Etude de l'aérosol atmosphérique en Europe : observations et modélisation en sites d'altitude. Océan, Atmosphère. Université Paul Sabatier - Toulouse III, 2008. Français. ⟨tel-00518944⟩



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