A Nonhydrostatic Atmospheric Dynamical Core in CAM-SE

Monday, 15 December 2014: 3:25 PM
Henry Tufo III, University of Colorado at Boulder, Boulder, CO, United States, David Matthew Hall, University of Colorado at Boulder, Superior, CO, United States and Ram D Nair, National Center for Atmospheric Research, Boulder, CO, United States
In order to perform climate simulations in the Commuity Earth-System Model (CESM) with atmospheric resolutions well beyond 1/8th of a degree, a number of new technologies must be put into place. Most fundamentally, the Primitive-Equations of motion utilized by the Communicty Atmosphere Model (CAM) dynamical-core must be replaced or augmented with one or more nonhydrostatic models of the rotating, compressible-Euler / Navier-Stokes system. Additionally, these solvers must perform at extrememly high levels of throughput and scale with near optimal parallel efficiency in order to make such expsensive high-resolution simulations practical. In this talk, we will discuss our efforts to develop a nonhydrostic model in CAM-SE, its parallel scaling, and related supporting technologies.