Arnold and Williams, Agricultural Engineer and Hydraulic Engineer, respectively, USDA-Agricultural Research Service, 808 East Black-land Road, Temple, Texas 76502; Srinivasan and Muttiah, Associate Research Scientists, Texas Agricultural Experiment Station, 808 East Blackland Road, Temple, Texas 76502 (e-m (Arnold): email@example.com).
LARGE AREA HYDROLOGIC MODELING AND ASSESSMENT PART I: MODEL DEVELOPMENT1
Article first published online: 8 JUN 2007
JAWRA Journal of the American Water Resources Association
Volume 34, Issue 1, pages 73–89, February 1998
How to Cite
Arnold, J. G., Srinivasan, R., Muttiah, R. S. and Williams, J. R. (1998), LARGE AREA HYDROLOGIC MODELING AND ASSESSMENT PART I: MODEL DEVELOPMENT. JAWRA Journal of the American Water Resources Association, 34: 73–89. doi: 10.1111/j.1752-1688.1998.tb05961.x
Paper No. 96089 of the Journal of the American Water Resources Association. Discussions are open until October 1, 1998.
- Issue published online: 8 JUN 2007
- Article first published online: 8 JUN 2007
- surface water hydrology;
- nonpoint source pollution;
- large area modeling;
- plant growth;
- agricultural land management
ABSTRACT: A conceptual, continuous time model called SWAT (Soil and Water Assessment Tool) was developed to assist water resource managers in assessing the impact of management on water supplies and nonpoint source pollution in watersheds and large river basins. The model is currently being utilized in several large area projects by EPA, NOAA, NRCS and others to estimate the off-site impacts of climate and management on water use, non-point source loadings, and pesticide contamination. Model development, operation, limitations, and assumptions are discussed and components of the model are described. In Part II, a GIS input/output interface is presented along with model validation on three basins within the Upper Trinity basin in Texas.