Summary

First release of version 2.1 of the Energy Exascale Earthy System Model contains the following changes from V2.0 (which were summarized in E3SM V2.0 new features )

EAM

The atmosphere component remains EAM. Major changes since version 2.0 include:

ELM

The land component is still ELM. Major changes since version 2.0 include:

General MPAS improvements

MPAS still provides the components for ocean, sea-ice and land-ice.

MPAS-Ocean

MPAS-Seaice

MPAS-Albany-landice

Coupler/Configurations

All components allow regional refinement of their meshes and an example of refinement in and around North America is provided.