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Terrestrial Ecosystem Science


The Terrestrial Ecosystem Science (TES) program seeks to improve the representation of terrestrial ecosystem processes in Earth system models, thereby improving the quality of climate model projections and providing the scientific foundation of solutions for the Department of Energy's (DOE) most pressing energy and environmental challenges. TES is managed within the Department of Energy (DOE) Office of Science’s Office of Biological and Environmental Research (BER).

TES cycle

Program Approach

The TES program develops unique, foundational scientific insights about the terrestrial biosphere’s role in the global cycling of carbon, nutrients, and water. The program also supports research examining the feedbacks between the terrestrial biosphere and Earth’s climate system. TES focuses on ecosystems and ecological processes that are globally or regionally significant, expected to be sensitive to climate change, and insufficiently understood or inadequately represented in models. As part of the Climate and Environmental Sciences Division, TES coordinates its activities with BER’s climate modeling program (and research from other federal agencies), ensuring that experimental and observational results are incorporated into Earth system models to improve climate projections.

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DOE TES Researchers: 
Submit Your Research Highlight!

Tell us about your research! This system is designed to collect brief science highlights describing published research supported by the Terrestrial Ecosystem Science (TES) program within DOE’s Office of Biological and Environmental Research (BER). For each highlight, you will be asked to submit a research summary and a PDF of the publication.

Research Themes

Within its broad research portfolio, TES works to advance priority research areas and coordinate with other federal programs with shared interest areas. Current examples of this cross-cutting structure include:

Critical Ecosystems

NGEE Arctic Experiments

Focusing on critical areas of uncertainty in our understanding and/or model representation of the global ecosystem. Learn More »

Interagency Solicitation for Carbon Cycle Science

NGEE Tropics Experiments

Image courtesy NASA

Improving understanding of changes in the distribution and cycling of carbon among the land, ocean, and atmospheric reservoirs and how that understanding can be used to establish a scientific foundation for societal responses to global environmental change. Learn More »

AmeriFlux Network


Providing continuous observations of ecosystem-level exchanges of CO2, water, energy, and momentum spanning diurnal, synoptic, seasonal, and interannual time scales. Learn More »

Climate Modeling


Linking process studies and observations to model developement and evaluation of improved process representation, initialize multiscale model domains, calibrate models, and evaluate model predictions. Learn More »