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United States Department of Agriculture

Agricultural Research Service

Public Databases and Programs
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The Crop Systems and Global Change Lab has maintained several databases that have been of great service to the public. The documentation to executable files are in .pdf format and require the free Adobe Acrobat Reader® . Adobe® also provides free PDF tools for the visually impaired

The following files are for downloading the GUICS executable files and documentation for using our crop models as well as 2DSOIL and 2DLEAF.

GUICS Version 2.41
Readme Files  
Installation Program

  2DSOIL version 03 

2D finite element water, solute, and heat mover model for plant models.

Source Code  (ZIP Files)      


2dsoil publications (PDF files):

Agronomy Journal Paper

Modular, Soil & Root Process Simulator



A 2D mechanistic model of CO2 and water vapor movement in a leaf and photosynthesis 

Source Code, documentation project files (1 ZIP file)

Note the 2DLEAF project files work with Compaq FORTRAN Compiler version 6.6



Cotton Model 

This is a recent version of the model with source code and some data files.

Source Code, documentation project files

GOSSYM Documentation (an old version but accurate about 8 MB)

GOSSYM Parameter File Matrix

Some additional data sets with measured data can be found by clicking on this link

Last Modified: 4/3/2015
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