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Astrophysics Colloquium

Seasonal Cycles over a Broad Range of Planetary Climates
Presented by Ana Lobo
California Institute of Technology

Monday, September 28, 2020
Virtual Event starts at 12:00 noon

Abstract
Radiative imbalance at the top-of-atmosphere drives the general circulation of Earth-like planetary atmospheres. Yet, how fundamental atmospheric features, such as the Hadley cell and extratropical eddies, respond to different radiative forcing and impact the surface climate and the hydrological cycle remains poorly understood. This is particularly true when seasonal cycles are being considered. We explore the response of the large-scale circulation, and associated climate, to perturbations in both the shortwave radiation, through obliquity changes, and perturbations in longwave radiation through changes in the meridional and vertical structure of the imposed optical depth. We focus on seasonal phenomena that are not captured by annual mean forcing.

JPL Contact: Renyu Hu


SVCP Astrophysics


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