Prof. Dr. Susanne Crewell
Institute for Geophysics and Meteorology, University of Cologne, Germany


Arctic Amplification: Climate Relevant Atmospheric and Surface Processes, and Feedback Mechanisms with a focus on clouds


To contribute to a better understanding of the recent dramatic Arctic climate changes, a new Transregional Collaborative Research Center (TR 172) has been established in Germany at the beginning of 2016 ( The overarching scientific objective of (AC)³ is to identify, investigate, and evaluate the key processes contributing to Arctic Amplification, improve our understanding of the major feedback mechanisms, and quantify their relative importance for Arctic Amplification. Within an initial four year phase researchers from the Universities of Leipzig, Bremen and Cologne, the Alfred Wegener Instiute and TROPOS will will focus on atmospheric and surface processes, because the ongoing rapid changes in the Arctic climate imply that mechanisms involve important atmospheric influences by combined observational and modelling efforts from oacl to Arctic wide scale. The talk will provide an overview on (AC)3 activities with a focus on the experimental efforts at Ny Alesund and the ACLOUD campaign planed for early summer 2017 with the research vessel Polarstern and two aircrafts. Novel cloud radar on the ground, the ship and aircraft combined with various in situ further remote sensing instruments will be exploited to study mixed phase clouds.

Time and place
Tuesday 29 November 2016, 11.15
Rossbysalen, Arrhenius Laboratory, 6th floor