Toward eliminating and understanding a decades-old bias in climate models
Sebastian Schemm, researcher at ETH Zurich, will present his work at the Ecole Normale Supérieure on the 14th of November at 11a.m
In the first part of this talk, I formulate the hypothesis that one of the main reasons for one of the most persistent biases in the simulated atmospheric circulation is the inaccurate representation of diabatic processes at the storm scale. In the second part of the talk, I will outline a new concept based on « PV gradient thinking » that has the potential to provide a better understanding of the key adiabatic and diabatic processes that drive circulation in the midlatitudes and enables the search for causes of biases therein. Finally, I talk about the research activities of my group aimed to enable improved model parameterizations using machine learning.
ENS – salle Serre – 24, rue Lhomond 75005 PARIS