GeoFLOW Moist Convection: Status of solvers, preliminary results, and performance

Abstract:

We advance the NOAA GeoFLuid Object Workbench (GeoFLOW) computational framework with the introduction of an explicit high-order moist convection solver that solves the non-hydrostatic Euler equations involving water vapor and including hydrometeor fallout. Like all solvers within GeoFLOW, the new solver is independent of the grid and can fully leverage the framework's handling of boundaries, terrain, forcing, and MPI parallelization, as well as diagnostics and IO. We focus here on the numerics of deep convection in the context of the spectral element method, e.g., utilizing high-order Lagrange interpolating polynomials as basis functions and Gauss quadrature for integration. A status update on the development effort will be offered, including preliminary results with the new solver and a characterization of the current stage of parallel performance and efficiency.