Sabine Undorf


Disentangling the effect of regional aerosol emissions on West African monsoon precipitation, the ITCZ, and the Atlantic


Anthropogenic aerosols are estimated to have offset a substantial amount of the transient warming from greenhouse gases since pre-industrial times. The heterogeneous forcing associated with aerosols can moreover cause even larger changes in regional climate and climate phenomena. Yet, key aspects of the historical, regional response to aerosol forcing are still poorly understood. In this talk, I will discuss recent results on the historical aerosol impact on the Atlantic, a crucial part of the climate system, and on West African monsoon precipitation, which has immense impacts on local society and ecosystems and is related to the large-scale circulation by means of the Inter-Tropical Convergence Zone (ITCZ). The wider implications of the findings and their relevance both for future projections and the mechanistic understanding of the climate system in general will be discussed.


Tuesday February 5, 11:15


Rossbysalen C609, Arrhenius laboratory, Svante Arrhenius väg 16C, 6th floor