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Terrestrial Ecosystem Science

COVID-19 Message from Gary Geernaert, Director, BER Earth and Environmental Systems Sciences Division

"We are in unprecedented times with this pandemic, and we anticipate that the interruptions that we are facing may continue for some time. Our National Labs have shut down most operations; field campaigns have been postponed; and universities are unable to provide the same level of institutional support that you are accustomed to having. Similarly, DOE staff are operating in a virtual space. On top of the stresses on our personal lives during this period, the pandemic has also introduced stresses that affect our scientific lives. We in DOE recognize that many of these stresses introduce uncertainties in the success of some projects, and we are willing to be creative to help mitigate where we can." [More]

TES cycle


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).

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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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 development and evaluation of improved process representation, initialize multiscale model domains, calibrate models, and evaluate model predictions. Learn More »

DOE TES Researchers: 
Submit Your Research Highlight!

Tell us about your research! Submit a brief description of your published TES program research. Additional information

Search Submitted Highlights

Office of Science Graduate Student Research (SCGSR) Program 2020 Solicitation 2
Now accepting applications. [MORE] Pre-Application Due: Nov. 12, 2020, 5:00 p.m. Eastern Time. [9/20]

Highlights submissions to require DOE PAGES number. [MORE] [7/20]

Environmental System Science Projects Awards Announced Summary [7/20]

FACE report now available Overview [6/20]

DOE announces Early Career Research Program awards for FY 2020. Awardees List [6/20]

Office of Science Graduate Student Research (SCGSR) Program 2020 Solicitation 2
Now accepting applications. Pre-Application Due: Nov. 12, 2020, 5:00 p.m. Eastern Time. [9/20]

Office of Science Graduate Student Research (SCGSR) Program 2020 Solicitation 1
Now accepting applications. Pre-Application Due: May 6, 2020, 5:00 p.m. Eastern Time. [2/20]

Related BER Research Highlights

Now Featuring

2020 PI Abstracts [5/20]

Second State of the Carbon Cycle Report (SOCCR2) [11/18]

Disturbance and Vegetation Dynamics in Earth System Models Workshop [11/18]

EESSD Strategic Plan 2018