KlimaCampus Kolloquium: Insights from high-resolution simulation of cloud feedbacks

Cloud feedbacks are a leading source of uncertainty in the climate sensitivity simulated by global climate models (GCMs). Low-latitude boundary-layer and cumulus cloud regimes are particularly problematic, because they are sustained by tight interactions between clouds and unresolved turbulent circulations. This talk reviews cloud feedbacks simulated by high-resolution models that simulate the dominant cloud-forming eddy motions in such regimes. Some physical mechanisms responsible for these feedbacks will be discussed, as well as some possible ways to constrain global cloud feedbacks from present-day observations. Overall, high-resolution models support the GCM and IPCC consensus that low-latitude and global cloud feedbacks are positive.

Datum

13.04.2017

Uhrzeit

15:15 Uhr

Ort

Bundesstr. 53, room 022/023
Seminar Room 022/023, Ground Floor, Bundesstrasse 53, 20146 Hamburg, Hamburg

ReferentIn

Chris Bretherton, University of Washington

Chair

Bjorn Stevens

Zur Übersicht