| Abstract: |
This presentation will focus on the development of local watershed metrics using ArcHydro Tools for ArcGIS. The University of Connecticut's Center for Land Use Education and Research (CLEAR) is participating in a research project to develop a GIS supported assessment framework for addressing basin screening and water resource allocation in Connecticut. In order to assess watershed conditions, a number of custom ArcHydro parameters were created to assess physical, biological, hydrological, demographic, and land cover datasets for the region. ArcHydro's ability to delineate drainage areas from any point along a stream network using digital elevation models of the land surface terrain was utilized to calculate basin metrics for user defined watersheds. This talk will address how the ArcHydro parameters were developed and how the geospatial data inputs were prepared for use within the model, including a Strahler stream order grid, which was developed for the project by the Institute for the Application of Geospatial Technology. Specifically, it will focus on the use of ArcHydro to provide a GIS assessment of watershed conditions based on factors such as land cover measures, water withdrawals, and percent contribution to first, second, third, etc. order streams. |