MPAS in CESM

The nonhydrostatic dynamical core in the atmospheric component of the Model for Prediction Across Scales (MPAS-Atmosphere) is currently being integrated as a dynamical core into CESM. MPAS-A is being incorporated as an external component in CESM/CIME, and is being pulled directly from the MPAS development/release repository.

MPAS-Atmosphere employs an unstructured spherical centroidal Voronoi mesh in its discretization, thus allowing for both uniform and variable-resolution configurations, and a smooth transition between regions of different mesh densities.

Status: The CESM port of MPAS-Atmosphere has been tested using both idealized test cases in CAM and with full CAM6 atmospheric physics. Convection-permitting testing is underway.