1 Comparative evaluation of GIS watershed delineation tools for multiple watersheds in the United States Shashank Singh Master’s student Purdue University Class project Computational Watershed Hydrology CE 549 Instructor Venkatesh Marwade CWH 549, September 11, 2009.

2  To delineate 8-digit watershed Upper White River Basin (UWRB) using :  ArcHydro  TauDEM  Multiwatershed Delineation (MWD)  Watershed Modeling System (WMS) Objective

3 Upper White River Watershed 7043 km 2 Land Use  23% Urban  55% Row crop Watershed

4 DEM (UWRB)

5 Materials and tools  ArcHydro  TauDEM  Multiwatershed Delineation  Watershed Modeling System

6 ArcHydro

7 TauDEM

8 Multiple Watershed Delineation (MWD)

9 WMS

10 Research  Comparative study of USGS DEM data and GDEM data on four GIS tools  Comparative study of spatial scale on delineation performance on four GIS tools  Comparative study of DEM resolution on delineation performance on four GIS tools

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