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Amip Simulation with the Cam4 Spectral Element Dynamical Core

Publication Type
Journal Name
Journal of Climate
Publication Date
Page Numbers
689 to 709

We evaluate the climate produced by the Community Earth System Model, version 1, running
with the new spectral-element atmospheric dynamical core option. The spectral-element method
is con gured to use a cubed-sphere grid, providing quasi-uniform resolution over the sphere,
increased parallel scalability and removing the need for polar fi lters. It uses a fourth order accurate
spatial discretization which locally conserves mass and moist total energy. Using the Atmosphere
Model Intercomparison Project protocol, we compare the results from the spectral-element dy-
namical core with those produced by the default nite-volume dynamical core and with observations.