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SUMMARY:EESS seminar talk on "Radiative Energy Budget and Transformations 
 of Air Masses in the Arctic"
DTSTART:20260520T121500
DTEND:20260520T131500
DTSTAMP:20260429T145146Z
UID:50c4713686b785960339a61b73c56df64ddff799c26459e5e47dcb1d
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Manfred Wendisch\, LIM\nAbstract:\n\n\nWe have observed
  and simulated key parameters and processes determining the current amplif
 ied Arctic climate changes. After a general introduction of the feedback m
 echanisms causing these changes\, the presentation discusses two of the as
 pects driving them: (1) the radiative energy budget at the surface with a 
 focus on cloud radiative effects\, and (2) the transformations of air mas
 ses during distinct moist and warm air intrusions (WAIs) and pronounced
  marine cold air outbreaks (CAOs) over the European Arctic. Results from
  airborne field campaigns and numerical simulations using the ICON (Icosa
 hedral Nonhydrostatic) numerical weather prediction model are interpreted
 . The data were collected over areas of open ocean\, the marginal sea ice
  zone\, and the central Arctic sea ice. To investigate the processes trans
 forming air masses during WAIs and CAOs\, a quasi-Lagrangian observational
  strategy is applied. The observations of air mass transformations are rel
 ated to the model-estimated thermodynamic\, microphysical\, and radiative 
 rates of change\, and the relative importance of these tendencies are quan
 tified. Within the outlook of the presentation\, the future CONIDA (Contra
 sting Polar Night and Day) campaigns are briefly introduced.\n\n\n\n\n\nBi
 ography:\n\n\n\nProf. Dr. Manfred Wendisch is a German meteorologist and p
 rofessor at Leipzig University\, specializing in cloud physics\, atmospher
 ic radiation\, and airborne measurements. He leads major research projects
  on climate processes\, including polar regions\, and has served on intern
 ational scientific commissions. Since 2025\, he is President of the Intern
 ational Radiation Commission.\n\n
LOCATION:ALP 1 107 https://plan.epfl.ch/?room==ALP%201%20107 https://epfl.
 zoom.us/j/69011077410
STATUS:CONFIRMED
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