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Biome-BGC: Terrestrial Ecosystem Process Model, Version 4.1.1

Model Overview

ModelBiome-BGC: Terrestrial Ecosystem Process Model, Version 4.1.1
DOI10.3334/ORNLDAAC/805
Release date2005-09-12
ProjectModel Archive
Time Period2000-07-05

Description

Biome-BGC is a computer program that estimates fluxes and storage of energy, water, carbon, and nitrogen for the vegetation and soil components of terrestrial ecosystems. The primary model purpose is to study global and regional interactions between climate, disturbance, and biogeochemical cycles. Biome-BGC represents physical and biological processes that control fluxes of energy and mass. These processes include new leaf growth and old leaf litterfall, sunlight interception by leaves and penetration to the ground, precipitation routing to leaves and soil, snow accumulation and melting, drainage and runoff of soil water, evaporation of water from soil and wet leaves, transpiration of soil water through leaf stomata, photosynthetic fixation of carbon from CO2 in the air, uptake of nitrogen from the soil, distribution of carbon and nitrogen to growing plant parts, decomposition of fresh plant litter and old soil organic matter, plant mortality, and fire. The model uses a daily time-step, meaning that each flux is estimated for a one-day period. Between days, the program updates its memory of the mass stored in different components of the vegetation, litter, and soil. Weather is the most important control on vegetation processes. Flux estimates in Biome-BGC depend strongly on daily weather conditions. Model behavior over time depends on climate--the history of these weather conditions. A companion file with more information about Biome-BGC and its components is available. Biome-BGC, Version 4.1.1, was developed and is maintained by the Numerical Terradynamic Simulation Group, School of Forestry, the University of Montana, Missoula, Montana, U.S.A. Additional information can be found on their web site at: http://www.ntsg.umt.edu/.

Documentation

Model reference document

Citation

Thornton, P.E., S.W. Running, and E.R. Hunt. 2005. Biome-BGC: Terrestrial Ecosystem Process Model, Version 4.1.1. ORNL DAAC, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/805
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Project

Model Archive: The Model Archive allows users to evaluate the uncertainties of model results in comparison to results from other models in assessment/policy studies. In addition, the archived models allow users to see how models treat individual processes (source code) and what the model inputs were (state parameters, spin-up data, driving variables). For each model the DAAC will have documentation, source code (with version number), input data, example output data, and post-processing or analysis code (if applicable).

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Companion Files

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  • BiomeBGC_v411_release.pdf
  • bgc_users_guide_411.pdf
  • biome-bgc_guide.pdf

Model Files

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Model File (Granule)File SizeDates
BiomeBGC_v411_release.zip 622.9 KB 2000-07-05
unixbgc411.tar.gz 648.3 KB 2000-07-05

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Files related to this model have been downloaded on 1636 occasions since 2007-12-04, totaling 4534 files.