Three new model components are included in the E3SM v1 configuration: Model for Prediction Across Scales (MPAS) Ocean, MPAS Sea Ice, and MPAS Land Ice. Pictured here is global E3SM simulation showing eddy activity.
Credit: M. Petersen, P. Wolfram and T. Ringler
Cat 5 hurricane simulated by the E3SM v0 at 13 km resolution. Precipitable water (gray scale) shows the detailed dynamical structure in the flow. Strong precipitation is overlaid in red. High resolution is necessary to simulate reasonable numbers of tropical cyclones including Cat 4 and 5 storms.
Credit: A. Scott and M. Taylor, SNL.
DOE's E3SM is a state-of-the-science Earth system model development and simulation project to investigate energy-relevant science using code optimized for DOE's advanced computers

E3SM Version 2.0 is Here

Version 2.0 of the Energy Exascale Earth System Model was formally frozen and tagged in the project repository on September 29, 2021. After this date, only maintenance and bug-fix updates will be made to this version. Project support and data from the v2 DECK and historical simulations will follow after the project documents its characteristics in journal articles.

Users of v2 are requested to delay submitting papers that use this new version until the project submits its initial v2 publication, thereby creating a citable reference.





  • Compression in NCO

    NCO added more lossy compression options to minimize data size  >>
  • Compass v1.0.0

    A new tool for creating initial conditions and testing of E3SM’s ocean and land-ice components  >>
  • PACE v4.0.0

    New features in performance monitoring framework for E3SM >>
  • Watershed Delineation

    Researchers better represent real-world river networks with an unstructured, hexagonal mesh model  >>



E3SM is a fully coupled, state-of-the-science Earth system model (ESM) capable of global high definition configuration (25km atmosphere, 12km river model, variable 18 to 6km ocean model, >>


Released global Coupled model simulation output data from E3SM target experiments, both the low and high definition configurations. >>


Software applications for coupled and component model diagnostic, evaluation and analysis, data transfer, manipulation, regridding and post processing. Model development tools and unit >>


Model and data help and support