TRR 181 Seminar "Development and analysis of an energy consistent stochastic parameterization"

The TRR 181 seminar is held by Federica Gugole (Universität Hamburg, PhD in M2) on October 25, 11am at Universität Hamburg, Bundesstr. 53, room 22/23.

Abstract

The dynamics of the atmosphere and the oceans is by nature complex. Processes with different time and length scales interact with each other affecting the system as a whole. While climate and ocean models have considerably improved over the last few decades, we still cannot resolve all important physical scales and processes. From a mathematical perspective, there has been a growing interest over the last few decades in finding appropriate techniques to develop systematic methods to accurately and efficiently represent fast variables in multi-scale systems. In this talk I will focus on stochastic parameterizations. In particular, I will give a quick overview over some of the main results in this research area and present a new derivation of an energy conserving stochastic version of the 2-layer Quasi-Geostrophic equations based on its Hamiltonian formulation. Here I will focus on the technical aspects of this approach, analyzing potential issues due to the discretization of the continuous equations or to the numerical implementation in general.