Virtual Event: Annual Seminar 2020

In this talk, I will present some recent results that we have obtained with our element-based Galerkin nonhydrostatic atmospheric models. The NUMA model is the computational engine inside of the U.S. Navy’s NEPTUNE weather forecast system while CLIMA-atmos is the dynamical core inside of the ClimateMachine climate modeling system. Since the last time I presented at ECMWF (back in 2018) we have made progress in both of these systems in terms of: (1) numerics, (2) process studies, and (3) computational performance. I will discuss each of these 3 topics which includes advances in our time integration strategies, analysis of the effective resolution of local high-order methods (including numerous turbulence closures) and high-altitude simulations, and scaling on GPU computers.