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Ecosystem Demography Model: Scaling Vegetation Dynamics Across South America

Model Overview

ModelEcosystem Demography Model: Scaling Vegetation Dynamics Across South America
DOI10.3334/ORNLDAAC/1149
Release date2013-03-27
ProjectModel Archive
Time Period1987-01-01 to 1988-12-31

Description

This model product contains the source code for the Ecosystem Demography Model (ED version 1.0) as well as model input and output data for a portion of South America including the Brazilian Amazon. The model output data are estimates of potential average live biomass (kg C/m2), potential average soil carbon (kg C/m2), and potential above-ground net primary production (NPP) (kg C/m2/yr) at 1.0 degree resolution. To produce these estimates, ED was forced with ISLSCP I data for 1987 and 1988, averaged into a single year (Moorcroft et al., 2001). Data for the three estimates are provided in both ASCII text and in NetCDF formatted files. ED is an individual-based terrestrial ecosystem model that predicts both ecosystem structure (e.g. above and below-ground biomass, vegetation height and basal area, and soil carbon stocks) and corresponding ecosystem fluxes (e.g. NPP, NEP and evapotranspiration) from climate, soil, and land-use inputs. The model consists of integrated sub-models governing processes such as leaf-level physiology, plant allocation, allometry, phenology, dispersal, the effects of fire disturbances, and below-ground sub-models for soil carbon dynamics and hydrology. Using a new method for scaling-up it is possible to predict ED's large-scale behavior without simulating the fate of every plant individually. ED is used to examine how climate and edaphic factors, natural disturbances, and human land-use practices affect ecosystem structure and fluxes. This data set contains six zip files which each uncompress into six unique subdirectories. Each subdirectory is described in detail in the Model Product Description section of this document. Installation and execution instructions are provided in the Model Documentation and User's Guide section of this document.

Documentation

Model reference document

Citation

Hurtt, G.C., P.R. Moorcroft, and S.W. Pacala. 2013. Ecosystem Demography Model: Scaling Vegetation Dynamics Across South America. ORNL DAAC, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/1149
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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).

Project data set list for Model Archive.

Companion Files

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  • ED_SA_Vegetation.pdf

Model Files

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Model File (Granule)File SizeDatesLatitudeLongitude
code.zip 66.5 KB 1987-01-01 - 1988-12-31 15.00N To 15.00S30.00W To 85.00W
output.zip 146 B 1987-01-01 - 1988-12-31 15.00N To 15.00S30.00W To 85.00W
cvode.zip 122.6 KB 1987-01-01 - 1988-12-31 15.00N To 15.00S30.00W To 85.00W
ic.zip 138 B 1987-01-01 - 1988-12-31 15.00N To 15.00S30.00W To 85.00W
inputs.zip 40.5 MB 1987-01-01 - 1988-12-31 15.00N To 19.50S40.50W To 85.00W
published_output.zip 87.5 KB 1987-01-01 - 1988-12-31 15.00N To 15.00S30.00W To 85.00W

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Files related to this model have been downloaded on 108 occasions since 2013-04-04, totaling 634 files.