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SUMMARY:EESS talk on "Observing aerosol-cloud interactions in the Arctic"
DTSTART:20201208T121500
DTEND:20201208T130000
DTSTAMP:20260407T045700Z
UID:ab453acb4dbf33242322793a9fbd62ffe425819a7e19c0532dc8169f
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr Paul Zieger\, Assistant Professor\, Department of Environme
 ntal Science\, Stokholm University\, SE\nAbstract:\nThe Arctic is warming 
 2-3 times faster than the global average. Yet\, the underlying processes c
 ausing the accelerated warming are not fully understood. Aerosols and thei
 r interaction with clouds play a major role in the Arctic system and are a
 mong the main contributors to the overall uncertainties in model predictio
 ns. At the Department of Environmental Science at Stockholm University we 
 are using various in-situ techniques to study aerosols and clouds also in 
 extreme environments. In particular\, we are operating a special inlet tha
 t is able to separate activated from non-activated particles and thus allo
 ws us to study the microphysical and chemical properties of cloud condensa
 tion or ice nuclei in high detail. In my presentation\, I will present res
 ults from our multi-annual observations at Zeppelin observatory on Svalbar
 d in the Arctic\, as well as recent results from the ‘Arctic Ocean 2018
 ’ expedition to the North Pole on board the Swedish icebreaker Oden. I w
 ill introduce in more detail the experimental methods and will also talk a
 bout current and future research activities.\n\nShort biography:\nPaul Zie
 ger is an assistant professor at the Department of Environmental Science (
 ACES) at Stockholm University\, Sweden\, where he researches on of microph
 ysical and chemical properties of ambient aerosols and clouds. He studied 
 physics at the Freie Universität Berlin\, Germany. From 2007 until 2011 h
 e conducted his PhD at ETH Zürich and the Paul Scherrer Institute (PSI) i
 n Switzerland before pursuing two postdoctoral positions at PSI and Stockh
 olm University.
LOCATION:ZOOM
STATUS:CONFIRMED
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