NOTICE (July 2017): CDIAC will cease operations on September 30, 2017. Data will continue to be available through this portal until that time. A new DOE data archive is now at Lawrence Berkeley National Laboratory and is named ESS-DIVE. Data stored at CDIAC is being transitioned to ESS-DIVE and will be available from ESS-DIVE by September 30, 2017. If you have any questions regarding the new archive or the data transition, please contact

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TDE Ecosystem Model Intercomparison Project Data Archive

DOI: 10.3334/CDIAC/vrc.002

This web site provides and documents data from a project whose purpose is to compare the output of various ecosystem models when they are run with the data from the Throughfall Displacement Experiment (TDE) at Walker Branch Watershed, Oak Ridge, Tennessee. The project is not designed to determine which models are "best" for diagnosis (i.e., explaining the current functioning of the system) or prognosis (i.e., predicting the response of the system to future conditions), but, rather, to clarify similarities and differences among the models and their components, so that all models can be improved. The intercomparison is described in Hanson, P.J., et al., 2004. Carbon and water cycle simulations for an upland oak forest using 13 stand-level models: Intermodel comparisons and evaluations against independent measurements. Ecological Monographs (4[3]:443-489, 2004).

Project Coordinator

Paul J. Hanson
Environmental Sciences Division
Oak Ridge National Laboratory

Participating Models

Model Descriptions

Model Intercomparisons

Relevant publications