Preliminary Results from a High Resolution Coupled Simulation using E3SM

The Energy Exascale Earth System Model (E3SM) is a new member of the international climate modeling community. Developed by the US Department of Energy (DOE), the E3SM has been focused on performing mission-relevant, high resolution simulations on DOE supercomputers. We will be describing some of the characteristics of a multi-decadal simulation comprised of atmosphere and land components using a 25km grid, and ocean and sea ice on a grid that varies from 18km at the equator to 6km near the poles. The latter two components are based on the MPAS (Modeling Processes Across Scales) framework and are represented here for the first time in a fully coupled eddying simulation. The simulation exhibits, for example, realistic tropical cyclones, ocean eddy energy levels, and current transports. On the other hand, Arctic sea ice appears to be too thin and ocean mixed layers show significant regional biases. We will present preliminary analyses from this run with comparisons to observations and previous simulations.