Minisymposium Presentation

In this contribution to the mini symposium on“Dynamic adaptive scalable methods in Earth system modeling” we discuss the challenges and potential benefits of adaptive meshes in Earth system models considering two applications. Firstly, MESSy, the Modular Earth Submodel System, is a software framework used for global and regional chemistry-climate modeling. For this application AMR methods are of potential interest since several 100 to 1000 of chemical tracers increase the memory and runtime requirements compared to general circulation models by at least a factor 10. As a step towards a full AMR chemistry-climate model simulation, MESSy was connected to the AMR library t8code and the flow solver Trixi.jl. An evaluation of the integration will be shown based on an idealized flow test case. Second, SERGHEI (Simulation EnviRonment for Geomorphology, Hydrodynamics, and Ecohydrology in Integrated form) is a multi-dimensional, multi-domain, and multi-physics model framework. Its shallow-water component is used for hydrological and environmental hydrodynamic simulations and is currently exploring AMR. We describe the implementation and the implications it has in the design of SERGHEI, as well as preliminary results of AMR applied to shallow water problems.