AbstractWDNR Hydrology Tool: GIS for Hydrologic Modeling Track: Water Resources Author(s): Kevin Driscoll An ArcView tool has been developed to support flood-frequency computations based on USGS regression equations for streams in Wisconsin. The topographic base layer for the WDNR Hydrology Tool is a 30M DEM, where flow accumulation, flow direction, and stream grids are processed. The watershed delineation functionality extract slope information from the DEM and combines the data with land use features of storage, forest cover, soil permeability, and precipiation layers to calculate storm event flow results. Additional extensions of HEC-geoRAS and HEC-HMS are integrated into the WDNR Hydrology Tool project applications for floodplain mapping initiatives. Kevin Driscoll Wisconsin Department of Natural Resources drisck@dnr.state.wi.us 101 South Webster Street Madison , WI 53703 USA Phone: 608 264 6278 Fax: 608 264 9200 E-mail: drisck@dnr.state.wi.us |