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.





  • DARPA Award

    Ruby Leung proposal on AI-assisted Climate Tipping-point Modeling (ACTM) >>
  • BGC Leadership

    K. Calvin took an IPA assignment at NASA and B. Bond-Lamberty assumed leadership of the BGC >>
  • JAMES cover depicting a hurricane off the west coast of Australia on Feb 16th, 2020

    SCREAM on JAMES cover

    First results using the Simple Cloud-Resolving E3SM Atmosphere Model were recently published in >>
  • E3SM Swag Available

    The web store will stay open until the end of March  >>


The E3SM store is offering t-shirts and accessories.  It will be open until 11:59 pm Thursday, March 31, 2022.

Major Research Directions

Water Cycle

Research focused on understanding and developing the capability to project changes in water within the Earth's system by more realistic portrayals of hydrologic features >>

BGC and Energy

E3SM is examining how more complete treatments of nutrient cycles, land-use/land-cover, and land disturbances such as fires affect biogeochemical cycles. >>


Next generation model development, high performance algorithms and exploration of parallel optimizations targeting upcoming exascale DOE computer facilities. >>


The project is conducting detailed modeling of the interactions between the ocean and the Antarctic ice sheet, including ocean flows under the ice shelves, to investigate the... >>


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