Download the 4th International SWAT Conference Proceedings

3rd International SWAT Conference

The 3rd International SWAT Conference was held in Zürich, Switzerland in July 2005.

• Download the 3rd International SWAT Conference Proceedings

2nd International SWAT Conference

The 2nd International SWAT Conference was held in Bari, Italy in July 2003. The focus of this conference was to allow an international community of researchers and scholars to discuss the latest advances in the use of the SWAT model to assess water quality trends.

• Download the 2nd International SWAT Conference Proceedings

Applications

To illustrate the application of SWAT, projects in which the model has been used are summarized and presented here.

• Identifying Hydrologic Processes in Agricultural Watersheds Using Precipitation-Runoff Models

• Evaluating Economic and Environmental Benefifits of Soil and Water Conservation Measures Applied in Missouri

• Estimating Water Quality, Air Quality, and Soil Carbon Benefits of the Conservation Reserve Program

• Missouri Watershed Water Quality Initiative

• Upper White River Watershed Integrated Economic and Environmental Management Project

• Thorsten Pohlert Doctoral Thesis

• Catchment scale water quantity impact analysis related to life cycle assessment for forestry and agriculture

• Watershed Modeling of the Cannonsville Basin Using SWAT2000
  Cornell University, NY ( Web site)

• Pesticide Fate and Transport by SWAT: Atrazine, Metolachlor and Trifluralin in the Sugar Creek Watershed
  USDA-ARS/BRC-TAES, Temple, TX

• Use of SWAT to determine flow and chemistry variables for development of ecological indicators in stream ecosystems
  Natural Resources Research Institute, University of Minnesota Duluth

• Great Salt Plains Reservoir
  Department of Biosystems and Ag Engineering, Oklahoma State University

• Use of SWAT to quantify the impact of changes in soil use on hydrosedimentologic characteristics of the Joanes river
  An impact assessment was also performed in the coastal zone by means of a qualitative approach based on air photo historic series analysis, stream data from field tests and in-situ inspection.
  Joanes River Watershed, Brazil, Instituto de Geociencias, Universidade Federal da Bahia

• Use of county-level NRI data and SSURGO in SWAT simulations of 5 watersheds
  Natural Resources Inventory & Analysis Institute, USDA NRCS

• Coastal Watershed Assessment (Gulf of Maine)

• Linking GIS and QUAL2E with SWAT

• Hydrologic Modeling of Rio Grande/Rio Bravo International Watershed

Peer Reviewed Publications

• Comprehensive review of SWAT model paper

• SWAT Peer Reviewed Publications List (alphabetized or categorized)

• Zhang, X., R. Srinivasan, and M. Van Liew. 2008. Multi-Site Calibration of the SWAT Model for Hydrologic Modeling, Transactions of the ASABE. 51(6): 2039-2049.
  Download

• Schuol, J., K. C. Abbaspour, H. Yang, R. Srinivasan, and A. J. B. Zehnder. 2008. Modeling blue and green water availability in Africa, Water Resour. Res., 44, W07406, doi:10.1029/2007WR006609.
  Download

• Bracmort, K. S., M. Arabi, J. R. Frankenberger, B. A. Engel, J. G. Arnold. 2006. Modeling Long-Term Water Quality Impact of Structural BMPs. Transactions of the ASABE. 49(2): 367-374.
  Download

• Debele, B., R. Srinivasan, J.-Y. Parlange. 2005. Coupling upland watershed and downstream waterbody hydrodynamic and water quality models (SWAT and CE-QUAL-W2) for better water resources management in complex river basins. Springer Science + Business Media B.V. 2006.
  Download

• Santhi, C., R. Srinivasan, J.G. Arnold, J.R. Williams. 2005. A modeling approach to evaluate the impacts of water quality management plans implemented in a watershed in Texas. Environmental Modelling & Software. 21 (2006): 1141-1157.
  Download

Calibration/Validation Publications

• Calibration and uncertainty analysis of the SWAT model using Genetic Algorithms and Bayesian Model Averaging

• Comparison of Two Different Approaches of Sensitivity Analysis

• Consideration of measurement uncertainty in the evaluation of goodness-of-fit in hydrologic and water quality modeling

• Cumulative Uncertainty in Measured Streamflow and Water Quality Data for Small Watersheds

• Model Evaluation Guidelines for Systematic Quantification of Accuracy in Watershed Simulations

• SCE-UA Method of Autocalibration

• SWAT Calibration Techniques

Comparison of SWAT & HSPF Literatures

• Im, S., K. Brannan, S. Mostaghimi, J. Cho. A Comparison of SWAT and HSPF Models for Simulating Hydrologic and Water Quality Responses from an Urbanizing Watershed.
  Download

• Nasr, A., M. Bruen, P. Jordan, R.Moles, G. Kiely, P. Byrne and B. O'Regan. Physically-based, distributed, catchment modelling for estimating sediment and phosphorus loads to rivers and lakes: issues of model complexity, spatial and temporal scales and data requirements.
  Download

• Assessment of Modeling Tools and Data Needs for TMDL Plan, Erie County, NY.
  Download

• Nasr, A., M. Bruen, R. Moles, P. Byrne, B. O'Regan. The significance of the differences in soil phosphorus representation and transport procedures in the SWAT and HSPF models and a comparison of their performance in estimating phosphorus loss from an agriculture catchment in Ireland.
  Download

• Saleh, A., B. Du. Evaluation of SWAT and HSPF within basins program for the upper north bosque river watershed in central Texas.
  Download

• Singh, J., H. Vernon Knapp, M. Demissie. Hydrologic Modeling of the Iroquois River Watershed Using HSPF and SWAT.
  Download

SWAT Literature Database for Peer-Reviewed Journal Articles

AVSWAT (ArcView SWAT)

Organization & Development

AVSWAT has been developed by Mauro Di Luzio and others at the Texas AgriLife Blackland Research and Extension Center in Temple, Texas, in collaboration with Grassland Soil and Water Research Lab, a USDA-ARS laboratory in Temple, Texas.

AVSWAT is organized in several linked tools grouped in the following eight components:

1. Watershed Delineation

2. Land Use and Soil Definition

3. Editing of the model Data Bases

4. Definition of the Weather Stations

5. Input Parameterization and Editing

6. Model Run

7. Read and Map-Chart Results

8. Calibration tool

AVSWAT has been developed as an extension of ArcView GIS entirely in Avenue and dependent by Spatial Analyst and Dialog Designer extensions. The Spatial Analyst functions are used within the Watershed Delineation and Landuse and Soil Definition components while the Dialog Designer controls have been used to build up all the user interface tools.

Updates

AVSWAT-X for SWAT version 2005:

• Download the most recent version of the interface (6/2006)
  FTP Download | HTTP Download
  Note: Follow the installation instructions for the previous version (SWAT2000) of the interface. It's okay to have both the SWAT2000 and SWAT2005 version on your system at one time. You will have to re-create your project for SWAT2005.

AVSWAT2000 version 1.0 for SWAT version 2000:

• Download the interface (3/11/2002)*

• Download the user's manual (8/02/2001)

• Download the STATSGO formatted files for AVSWAT2000 (8/02/2001)

*AVSWAT2000 is only available for download through FTP. If you are unable to download, please contact someone on our development team.

Registration

By registering you are placed in the registered users list that is also used as support list.

• Register the AVSWAT Download (Currently Unavailable)

• Read the Disclaimer

References

Di Luzio, M., Srinivasan R., Arnold J.G. 2004. A GIS-Coupled Hydrological Model System for the Watershed Assessment of Agricultural Nonpoint and Point Sources of Pollution. Transactions in GIS, 8(1): 113-136.

Di Luzio, M., R. Srinivasan, J.G. Arnold , and S.L. Neitsch. 2002. Soil and Water Assessment Tool. ArcView GIS Interface Manual: Version 2000. GSWRL Report 02-03, BRC Report 02-07, Published by Texas Water Resources Institute TR-193, College Station, TX. 346p.

ArcSWAT

Download ArcSWAT for SWAT 2005 Version

For help installing ArcGIS 9.2 and ArcSWAT, read the installation instructions and the ArcSWAT FAQ.

ArcSWAT 2.3.4 for ArcGIS 9.3 SP1 Install (69 MB), released 9/21/2009

HTTP Download

FTP Download

Release Notes

ArcSWAT 2.1.6 for ArcGIS 9.2 SP6 Install (69 MB), released 9/21/2009 (final release for ArcGIS 9.2)

HTTP Download

FTP Download

Release Notes

ArcSWAT 2.0.0 for ArcGIS 9.2 Install (76 MB), released 2/15/2008

HTTP Download

FTP Download

Release Notes

ArcSWAT 1.0.7 for ArcGIS 9.1 Install (74 MB), released 2/21/2008 (final release for ArcGIS 9.1)

HTTP Download

FTP Download

SWATeditor is a companion software to ArcSWAT. SWATeditor reads the project database generated by ArcSWAT interface to edit swat input files, execute SWAT run, perform sensitivity, autocalibration and uncertainty analysis. This is a standalone program and does not require ArcGIS, thus helping users of ArcSWAT to share their project with others that do not have ArcGIS or much experience with GIS in general. In order to use the SWATeditor, the users need to have created an ArcSWAT project under the "write all" menu.

SWATeditor 2.1.5 Install (21 MB), released 6/18/2009

HTTP Download

FTP Download

SWATeditor 2.0.0 Install (20 MB), released 3/7/2008

HTTP Download

FTP Download

Key Procedures

• Load or select the ArcSWAT extension

• Delineate the watershed and define the HRUs (including landuse, soil, and slope as a unique HRU)

• (Optional) Edit SWAT databases

• Define the weather data

• Apply the default input files writer

• (Optional) Edit the default input files

• Set up (requires specification of simulation period, PET calculation method, etc.) and run SWAT

• (Optional) Apply a calibration tool

• (Optional) Analyze, plot and graph SWAT output (VizSWAT)

System Requirements

The SWAT2005/ArcSWAT 1.0 Interface requires:

Hardware:

• Personal computer using a Pentium IV processor or higher, which runs at 2 gigahertz or faster

• 1 GB RAM minimum

• 500 megabytes free memory on the hard drive for minimal installation and up to 1.25 gigabyte for a full installation (including sample datasets and US STATSGO data)

Software (ArcSWAT 1.0 for ArcGIS 9.1 version):

• Microsoft Windows XP, or Windows 2000 operating system with most recent kernel patch*

• ArcGIS-ArcView 9.1 with service pack 2 (Build 766)

• ArcGIS Spatial Analyst 9.1 extension

• ArcGIS Developer Kit (usually found in C:\Program Files\ArcGIS\DeveloperKit\)

• ArcGIS DotNet support (usually found in C:\Program Files\ArcGIS\DotNet\)

• Microsoft .Net Framework 1.1

• Adobe Acrobat Reader version 7 or higher

* Microsoft constantly updates the different versions of windows. This interface was developed with the latest version of Windows and may not run with earlier versions. Patches are available from Microsoft.

ArcSWAT Group

This group is established to exchange ideas, help each other and report any bugs related to the interface.

• Visit the ArcSWAT Group

SWAT Input Checker Program

The checker program runs in the DOS environment. To use the program: open a DOS window, change to the directory containing the SWAT input data files, type the pathway to the checker.exe file that you downloaded and hit enter. A file named ranges.out will be created that contains the results of the input analysis. A file named defaults.out will be created that lists model defaults when variables are set to zero by the user.

The SWAT/ArcView interface has the checker program incorporated into the interface.

To download the checker files from this Web site (HTTP), follow the links below.

• Download PC version

• Download UNIX version

To download the above files from our FTP server, follow the links below.

• Download PC version (FTP)

• Download UNIX version (FTP)

Potential Heat Unit Program

A PDF file is included in the download which explains the concept of heat units and the methodology used to calculate the total number of heat units required to bring a plant to maturity.

This program must be run in the MSDOS environment.

To download the PHU files from this Web site (HTTP), follow the links below.

• View readme file

• Download installation files and documentation

To download the above files from our FTP server, follow the link below.

• PHU Program Downloads (FTP)

Baseflow Filter Program

There are many baseflow filters available and the user is by no means required to use this particular baseflow filter with SWAT. However, we have found that model results are significantly improved if the ratio of surface runoff to baseflow is correct. We strongly recommend that some type of baseflow filter is used to provide an average annual ratio of baseflow to surface runoff for the calibration of model runs.

• HTTP Download (3.9 MB)

• FTP Download (3.9 MB)

• Download instructions

Links to Related Software

• SWAT Input Preprocessors, Download Manual

• Dewpoint Estimation, Download Manual

BASINS Software:

• Visit the BASINS Web site

• Download the BASINS patches

Additional BASINS Documentation:

• COE Calculation

• GenScn Data Import

• BASINS Patches

SWAT Output Analyzers:

SWAT 2005 READOUT Program

• Windows Executable (Updated 10/23/2006)

• Example Data

• Installation Instructions

SWAT 2000 READOUT Program

• Download READOUT Program

• Installation Instructions

• AIX Binary

• GNU Linux Binary

• Windows Executable

• Browser (Queensland Natural Resources and Mines)

Other Models Developed from SWAT:

• Soil & Water Integrated Model (SWIM)

• SWAT-G