Abstract
 North Carolina Stream Mapping Project Track: Water Resources Author(s): Roger Cottrell, Scott Edelman, Joe Sewash The North Carolina Stream Mapping Project was developed as a response to the NC General Assembly's request to improve the mapping and digital representation of surface waters in the state. Nineteen counties affected by Hurricanes Frances and Ivan in western North Carolina are designated as the first phase of the five-year project. The project uses state wide LIDAR data along with orthoimagery and other ancillary data to create local resolution National Hydrography Dataset (NHD) data. Drainage basins are delineated based on a six-acre limit. Streams and waterbodies are created based on these drainage limits. Reach codes and other attributes from 24K NHD are conflated to corresponding local resolution features. Attributes to track source data and edit history at the feature level extend the base NHD data model. This presentation will give perspectives on project initiation, horizontal accuracy assessment, software development, and data maintenance planning developed through the project. Roger Cottrell Watershed Concepts GIS 4905 Koger Blvd. Suite 270 Greensboro , NC 27407 US Phone: (336) 855-8422 E-mail: rcottrell@watershedconcepts.com Scott Edelman Watershed Concepts Engineering 4905 Koger Blvd. Suite 270 Greensboro , NC 27407 US Phone: (336) 855-8422 E-mail: sedelman@watershedconcepts.com Joe Sewash North Carolina Center for Geographic Information and Analysis CGIA 20322 Mail Service Center Raleigh , NC 27699 US Phone: (919)715-0710 E-mail: joe.sewash@ncmail.net |
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