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AGWA- ArcGIS
 ARC VIEW ARC GIS |
| Abstract | Announcement | Brochure | Fact Sheet | TMDL Fact Sheet | Product Release | Manual (PDF) | Download |
AGWA 2.0- BrochureEPA/600/C-07/015
ARS/218468
ARS/218468
 United states Department of Agriculture     
Additional information on AGWA is available at our Web site:
http://www.epa.gov/nerlesd1/land-sci/agwa/index.htm David Goodrich Information on KINEROS can be found at:
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What is AGWA?
The Automated Geospatial Watershed Assessment (AGWA) tool is a GIS-based multipurpose hydrologic analysis system for use by watershed, water resource, land use, and biological resource managers and scientists in performing watershed- and basin-scale studies. It uses readily available spatial data sets to parameterize and run two widely used watershed runoff and erosion models. AGWA is designed to support landscape assessment at multiple spatial and temporal scales. AGWA is available as an extension for ESRI's ArcView 3.x and ArcGIS 9.x. Watershed Delineation  Land Cover and Soils Parameterization
 Rainfall  Visualization  Watershed model descriptions  KINEROSThe kinematic runoff and erosion model KINEROS is an event oriented, physically based model developed at the USDA-ARS to describe the processes of interception, infiltration, surface runoff and erosion from small agricultural and urban watersheds. The watershed is represented by a cascade of planes and channels; the partial differential equations describing overland flow, channel flow, erosion and sediment transport are solved by finite difference techniques. The spatial variation of rainfall, infiltration, runoff, and erosion parameters can be accommodated. KINEROS may be used to determine the effects of various artificial features such as urban developments, small detention reservoirs, or lined channels on flood hydrographs and sediment yield. SWATThe Soil and Water Assessment Tool (SWAT) is a distributed, lumped-parameter model developed at the USDA-ARS to predict the impact of land management practices on water, sediment and agricultural chemical yields in large (basin scale) complex watersheds with varying soils, land use and management conditions over long periods of time (> 1 year). SWAT is a continuous-time model, i.e., a long-term yield model, using daily average input values, and is not designed to simulate detailed, single-event flood routing. Major components of the model include: hydrology, weather generator, sedimentation, soil temperature, crop growth, nutrients, pesticides, groundwater and lateral flow, and agricultural management. The Curve Number method is used to compute rainfall excess, and flow is routed through the channels using a variable storage coefficient method. |