AVSWAT: An ArcView GIS Extension as a Tool for the Watershed Control of Point and Nonpoint Sources

Author: Mauro Di Luzio
Organization: Texas A&M

808 E Blackland Rd
Temple, TX 76502
USA

Phone: 254-770-6622
Fax: 254-770-6000
diluzio@brc.tamus.edu

ArcView GIS, extended and integrated with a hydrologic nonpoint pollution model (SWAT), provides a comprehensive watershed assessment tool (AVSWAT) designed to assist water resource managers. AVSWAT improves the efficiency of analyses for nonpoint and point pollution assessment and control on a watershed scale. The watershed modeling framework is delineated starting from the digital description of the landscape (DEM, land use and soil data sets) using ArcView Spatial Analyst with geomorphological assessment procedures and can integrate nationwide public domain databases as well as operate on user provided input data. AVSWAT is a user friendly, unique and single modeling environment based on several user interface tools developed using Dialog Designer extension and able to run on PC as well as on UNIX platforms.