Climate and Environmental Sciences Division (CESD)

Earth System Modeling (ESM) Program

Earth System Modeling Mission and Priorities

The Earth System Modeling (ESM) Program supports the development of innovative Earth system modeling capabilities, with the ultimate goal of providing accurate and computationally advanced representations of the fully coupled and integrated Earth system, as needed for energy and related sectoral infrastructure planning.  Key examples of critical information for energy include accurate projections of water availability, drought incidence and persistence, temperature extremes including prolonged heat stress, probability of storms, opening of the Arctic Ocean, and sea level and storm-surge at coastal regions. In order to provide this information, considerable effort is needed to develop optimal-fidelity climate and Earth system simulations, with suitably-accurate representation of atmospheric dynamics, clouds and chemistry, ocean circulation and biogeochemistry, land biogeochemistry and hydrology, sea-ice and dynamic land-ice, and in each case including elements of human activities that affect these systems such as water management and land-use.

ESM utilizes the mathematical and computational expertise within the DOE-Laboratories to develop efficient, accurate and advanced algorithms for these Earth system processes, and to improve model initialization, optimal component coupling and uncertainty of system simulation and climate projections.  The aim is to optimize the Earth system codes to run efficiently on DOE computers architectures, using modern and sustainable software and workflows, providing the Nation with a high-resolution coupled climate and Earth system simulation capability that is vital for accurately understanding how the climate and earth system evolve and also support DOE responsibilities involving energy planning.

Central to the ESM Program is the Accelerated Climate Modeling for Energy (ACME) project, launched by BER in 2014 to develop a high-resolution Earth system model that efficiently runs at high-resolution on DOE leadership computers, simulating the near-term past (for validation) and future (3-4 decades, to 2050) in support of the DOE science mission. ACME will design and perform high-resolution Earth system simulations, targeting the research community’s more challenging science questions, e.g., involving cloud-aerosol interactions, ice sheet physics, biogeochemistry, hydrology, ocean eddy dynamics, and the interdependence of low frequency variability and extreme weather. Other activities supported by ESM complement and enhance ACME, including the development of potential future-generation ACME capabilities within the Scientific Discovery through Advanced Computing (SciDAC) Program and supporting collaborative and community codes that are developed and used by multiple climate and weather groups.

The EESM Program contributes to the U.S. Global Change Research ProgramExternal link (USGCRP) and coordinates its activities with modeling programs at other federal agencies, including National Science Foundation (NSF), National Oceanic and Atmospheric Administration (NOAA), and National Aeronautics and Space Administration (NASA).

Additional information about EESM is on the DOE Earth and Environmental System Modeling website.

Program Managers

Climate and Environmental Sciences Division, SC-23.1
Department of Energy, GTN Bldg.
1000 Independence Ave, SW
Washington, DC 20585-1290

Dr. Dorothy Koch
Phone: (301) 903-0105
Fax: (301) 903-8519
Email: dorothy.koch@science.doe.gov

Dr. Renu R. Joseph
Phone: (301) 903-9237
Fax: (301) 903-8519
Email: renu.joseph@science.doe.gov

Mr. Robert W. Vallario
Phone: (301) 903-5758
Fax: (301) 903-8519
Email: bob.vallario@science.doe.gov

Last modified: 1/25/2019 10:02:36 AM