NHD/WBD Stewardship ConferenceNHD/WBD Stewardship Conference

Stewardship of Alabama’s National Stewardship of Alabama’s National Hydrography DatasetHydrography Dataset (NHD) (NHD)

Phillip HendersonPhillip HendersonADECA Office of Water ResourcesADECA Office of Water Resources

April 14April 14thth, 2009, 2009

Alabama Introduction

Drought for almost 3 yearsDrought for almost 3 years

ADECA/OWR and ADEM work closely with NHDADECA/OWR and ADEM work closely with NHD

NHD MOU signed last year (6/10/08)NHD MOU signed last year (6/10/08)

Alabama’s POC is Elizabeth McCartneyAlabama’s POC is Elizabeth McCartney

NSDI Liaison is John BreckenridgeNSDI Liaison is John Breckenridge

NHD Issues and Challenges

Funding and staffing issuesFunding and staffing issues 1 full-time staff member on NHD1 full-time staff member on NHD

Complete revision underway (continual process)Complete revision underway (continual process)

3-5 months to finish complete revision per sub basin 3-5 months to finish complete revision per sub basin

(8-digit HUC)(8-digit HUC)

53 Sub basins in Alabama53 Sub basins in Alabama

13-22 years to complete13-22 years to complete

NHD Web Edit Tool (NHD-WET) Designed to operate in a web browserDesigned to operate in a web browser

Engage local (sub-stewards) stewards who will perform high Engage local (sub-stewards) stewards who will perform high

resolution edits of the NHD through a web browserresolution edits of the NHD through a web browser Vast knowledge of their hydrologic networkVast knowledge of their hydrologic network

Grass roots effort (maintainable)Grass roots effort (maintainable)

Greater participation (local stewards)Greater participation (local stewards)

Edits must be accepted or rejected by NHD State Steward Edits must be accepted or rejected by NHD State Steward

for inclusion into geodatabasefor inclusion into geodatabase NHDGeoEdit tool is used by State Stewards to perform QA/QCNHDGeoEdit tool is used by State Stewards to perform QA/QC

Easy to use web interface for local stewards (sub-stewards)Easy to use web interface for local stewards (sub-stewards) NHD-WET tool is located at the State Stewardship officeNHD-WET tool is located at the State Stewardship office

Questions?Questions?

Contact InfoContact Info::Phillip HendersonPhillip Henderson

(334) 353-1038 or (334) 467-3567 (334) 353-1038 or (334) 467-3567 Phillip.Henderson@adeca.alabama.govPhillip.Henderson@adeca.alabama.gov