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NHD/GNIS Update Oregon

NHD/GNIS Update Oregon. Sheri Schneider, USGS Geospatial Liaison for Oregon Bob Harmon, Oregon Water Resources Department.

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NHD/GNIS Update Oregon

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  1. NHD/GNIS Update Oregon Sheri Schneider, USGS Geospatial Liaison for Oregon Bob Harmon, Oregon Water Resources Department

  2. “I have noticed on more than one web mapping application that a significant local stream has a name which is not consistent with what it is known as locally.  The source of this error is the NHD dataset.  I am wondering how I can get more information on this and possibly how to get it corrected. This waterway should be named Johnson Creek, not Davis Creek. ”

  3. Workflow process, Type of edits needed Standard procedures Stewardship Involvement “Thank you for bringing this error to our attention. The NHD feature name is incorrect and should be attributed for Johnson Creek in Clackamas County. The Davis Creek entry appears to be correct in the GNIS, but was applied to the wrong feature in NHD. The correction to the NHD dataset has been noted and will be applied by an NHD editor. ”

  4. 26,036 NHD related feature in OR GNIS 19,431 features in OR GNIS, Named in OR NHD 6,605 in OR GNIS, Not Named in OR NHD

  5. Distribution of NHD/GNIS Discrepancies by Sub-Basin

  6. Old Tools • Install Tools • Obtain Training • Begin Editing “The new tools and help documents/videos are great. These would have saved maybe 40% of the time on our project.”

  7. Research and analysis significantly longer than expected • Water Rights Maps and Database • USACE Maps • Multiple Years Topo Maps • Multiple Years Imagery • GNIS Online Search • Contact Stewards/Experts, Sometimes delay in response

  8. Add GNIS Name to Existing NHD Geometry Two NHD Water bodies without a Name Which One is Feller Pond?

  9. Add GNIS Name to Existing NHD Geometry

  10. Add GNIS Name to Existing NHD Geometry

  11. Add GNIS Name to Existing NHD Geometry Name in NHD Name Missing in NHD

  12. Correct GNIS Name on an Existing NHD Feature NHD - Cob Creek Reservoir Topo – McEwen Reservoir GNIS – McEwen Reservoir AND Cob Creek Reservoir McEwen Reservoir Name is missing in NHD

  13. Add New Feature to NHD, Existing GNIS Name

  14. Add New Feature to NHD, Existing GNIS Name

  15. GNIS Correction Only Name in NHD Feature ID 371391 Feature ID 1117327

  16. Edit Type By Percent

  17. Project Guide Final Report

  18. OWRD Goals • Develop a process to edit NHD • Train OWRD NHD editor on staff • Bring all sub-basins up-to-date for NHD/GNIS • Act as advisor/facilitator to other state agencies

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