TREX: Two-Dimensional Runoff Erosion and Export

Spatially Distributed Model To Assess Watershed Hydrology, Sediment Transport, and Contaminant Transport and Fate

Home

Overview

To illustrate TREX set-up and operation, a series of example files are available. Hydrology and sediment transport examples are available for the 17 October 1981 storm event on the Goodwin Creek, Mississippi watershed.  A chemical transport example is also available for a hypothetical case.  These example files are meant to be illustrative but are not intended to document every possible model feature or combinations of inputs and options. Examples are available for:

1. Hydrology:  TREX-Hydrology-Example (zip)
2. Sediment Transport:  TREX-Sediment-Example (zip)
3. Chemical Transport:  TREX-Chemical-Example (zip)
4. Rainfall Options:  TREX-Pueblo-Examples (zip) [13 MB]

Samples of selected output for these example simulations is also included.

TREX is operated from a command line interface (the command prompt under the Windows operating system or a teminal window under unix/linux) and requires that the user specify one argument. This argument is the path and file name of the main input file. For example:

C:\> trex.exe inputfile.inp

Home | Overview | Applications | User Manual | Source Code | Examples | TREX Tools | Research | Contacts | USEPA SAP Review

Department of Civil and Environmental Engineering - Colorado State University
Fort Collins, Colorado 80523-2028  USA   (970) 491-5048

Last update: 07 August 2018