Abstract
Preparing an Arc Hydro/GWIS Database for Hydrologic/Hydraulic Modeling
Track: Water Resources
Author(s): Jamison Janke
The Southwest Florida Water Management District currently maintains a custom Arc Hydro database called the �Geographic Watershed Information System� (GWIS). Using standard Arc Hydro terrain processing tools and workflows, catchments and surface connectivity (hydro-network) are initially generated from a LiDAR-derived DEM. Using custom Arc Hydro tools, below-surface connectivity is added to the hydro-network. Once all possible surface and below-surface connections have been identified (i.e. the �Spider web�), a preferential flow path tool assists in producing a simplified network for modeling purposes. A similar tool is used to consolidate catchments into model units (i.e. model basins). The GWIS schema has been enhanced to contain these �model� components and to facilitate direct data migration, via XML, into the computer model.
Jamison Janke
Southwest Florida Water Management District
2379 Broad Street
Brooksville , Florida 34604
United States
Phone: 352-796-7211
Fax: 352-797-5806
E-mail: jamison.janke@swfwmd.state.fl.us