National hydrography dataset (NHD) conversion to arc hydro: lessons learned
Bales, E. Scott
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The University of Georgia will complete the National Hydrography Dataset for the State of Georgia by the end of the 2003 calendar year. The next stage in the maturation of Georgia’s water resources database is the conversion to Arc Hydro – An ArcGIS data model for water resources. This geodatabase based capability enables a behavioral approach to data modeling that enables a paradigm maturation beyond the comprehensive integration needed for a hydrologic information system to potentially enabling real-time modeling in the GIS context. The full capabilities of Arc Hydro are being realized using ArcGIS 8.3 with geodatabase dynamic segmentation functions necessary for stream networking. This implementation of Arc Hydro represents the foundation for the eventual construction of a comprehensive, integrated, real-time, environmental modeling capability for the State of Georgia.