1. The WV NHD Stewardship Program
Evan J Fedorko

2. Outline
What is NHD?
NHD Applications
NHD Data Source
NHD Stewardship Overview
NHD Stewardship in WV
How you can participate in Stewardship
Where to get NHD Data and tools
3. NHD
The National Hydrographic Dataset is a comprehensive set of digital spatial data representing the surface water of the United States using common features such as lakes, ponds, streams, rivers, canals, and oceans.
Also includes the Watershed Boundary Dataset, aka WBD.
4. NHD Applications
Base layer for hydro features in cartographic applications.
Model features include:
Flow direction network that traces the water downstream or upstream.
An addressing system to link specific information about the water to a point such as water discharge, water quality, and fish population.
5. NHD Applications (2)
Model features allow for advanced analysis such as:
Publishing and
Analyzing water pollution data
Prioritizing watersheds for conservation
Incident command for
Toxic spills into water-
ways
6. NHD Data
Scale of NHD data varies by state
West Virginia, and much of the US, is 1:24,000 scale data
Includes all water features from USGS Topographic maps
This means much of WVs data is quite old.
7. Stewardship
The term stewardship refers to the mechanism by which the NHD data is improved and maintained.
Large Federal agencies do not have the knowledge to maintain these datasets, so
Local Stewards are encouraged to take over and maintain this data, with support from the USSGS
8. Stewardship in WV
Memorandum of Understanding
Between WV Office of GIS Coordinator, NRCS and the USGS
Identifies two stewards:WVOGC (NHD), NRCS (WBD)
Identifies a technical lead: WVGISTC
Signed, sealed and delivered!
Year one proposal
Submitted and approved!
9. Stewardship in WV (2)
USGS NHD Stewardship Program
NHD National
WV Office of
GIS Coordination
NHD Steward
Stewardship
Technical Lead
WV GIS Technical Center
Primary Sub-Stewards
NHD Error Reporting Tool
e.g., WVDEP,
USFS, WVDNR
Stakeholders and
Stewardship
Mechanisms
NHD Users Group
NHD Training and Policies
NHD Data Users
10. Stewardship in WV (3)
Year One Proposal
Players: WVGISTC, NRAC, WVDEP
Task 1: Stewardship program establishment and organization
Task 2: Editing of known errors
Task 3: High change area targeted editing (research)
11. Stewardship in WV (4)
How can you participate?
By noting and reporting errors in NHD
By submitting your water feature data to the NHD stewards
By attending free training on using the NHD
12. NHD Data
Data:
Nhd.usgs.gov
www.wvgis.wvu.edu (WVGISTC), search keyword NHD
Available from USGS and WVGISTC in ESRI Geodatabase format, and from WVGISTC additionally as shapefiles
Available nationwide from USGS and for WV from WVGISTC
13. NHD Tools
nhd.usgs.gov/tools.html
Hydro Event Management Tool*
Network capabilities can be exploited with ESRI Utility Network Analyst
14. Thank you!
Questions?