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NHD/WBD Stewardship Conference Stewardship of Alabama’s National Hydrography Dataset (NHD) Phillip Henderson ADECA Office of Water Resources April 14 th , 2009. Alabama Introduction. Drought for almost 3 years ADECA/OWR and ADEM work closely with NHD NHD MOU signed last year (6/10/08)
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NHD/WBD Stewardship Conference Stewardship of Alabama’s National Hydrography Dataset (NHD) Phillip Henderson ADECA Office of Water Resources April 14th, 2009
Alabama Introduction • Drought for almost 3 years • ADECA/OWR and ADEM work closely with NHD • NHD MOU signed last year (6/10/08) • Alabama’s POC is Elizabeth McCartney • NSDI Liaison is John Breckenridge
NHD Issues and Challenges • Funding and staffing issues • 1 full-time staff member on NHD • Complete revision underway (continual process) • 3-5 months to finish complete revision per sub basin (8-digit HUC) • 53 Sub basins in Alabama • 13-22 years to complete
NHD Web Edit Tool (NHD-WET) • Designed to operate in a web browser • Engage local (sub-stewards) stewards who will perform high resolution edits of the NHD through a web browser • Vast knowledge of their hydrologic network • Grass roots effort (maintainable) • Greater participation (local stewards) • Edits must be accepted or rejected by NHD State Steward for inclusion into geodatabase • NHDGeoEdit tool is used by State Stewards to perform QA/QC • Easy to use web interface for local stewards (sub-stewards) • NHD-WET tool is located at the State Stewardship office
Questions? • Contact Info: Phillip Henderson (334) 353-1038 or (334) 467-3567 Phillip.Henderson@adeca.alabama.gov