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SUMMARY:Using high-resolution model to explore the behaviour of mixed-phas
 e cold-air outbreak clouds - Xinyi Huang (University of Leeds)
DTSTART:20250220T110000Z
DTEND:20250220T120000Z
UID:TALK228433@talks.cam.ac.uk
CONTACT:Thomas Caton Harrison
DESCRIPTION:Shallow mixed-phase cold-air outbreak (CAO) clouds play a cruc
 ial role in the estimation of cloud-phase feedback\, but uncertainties rem
 ain due to poor representation of cloud microphysics in current climate an
 d atmospheric models. Recent studies highlight the importance of aerosol-c
 loud interactions and ice-formation processes to the radiative properties 
 of mixed-phase CAO clouds\, but many of them mainly focused on a single ca
 se study and relied on the once-at-a-time (OAT) test method to understand 
 the influences of these processes. In this talk\, I will present our recen
 t results on the comparison of CAO cloud sensitivities to these processes 
 between two CAO events over the Labrador Sea\, one cold and strong in Marc
 h and one warm and weak in October. I will also discuss results from pertu
 rbed parameter ensembles (PPEs) and Gaussian Process (GP) emulators for th
 e latter warmer October case which enable the exploration of interactions 
 between these processes.
LOCATION:BAS Seminar Room 1 and Zoom
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