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.
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.