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Interagency Development of a Reference Set of Watersheds for the United States WBD

Interagency Development of a Reference Set of Watersheds for the United States WBD. BLM. ACWI. NOAA. CA. USGS. FGDC. NSGIC. USFS. Subcommittee on Spatial Water Data (FACA). FEMA. TVA. COE. NRCS. TX. AK. EPA. ASCE. NWS. NED. NHD. WBD. EDNA.

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Interagency Development of a Reference Set of Watersheds for the United States WBD

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  1. Interagency Development of a Reference Set of Watersheds for the United StatesWBD

  2. BLM ACWI NOAA CA USGS FGDC NSGIC USFS Subcommittee on Spatial Water Data (FACA) FEMA TVA COE NRCS TX AK EPA ASCE NWS

  3. NED NHD WBD EDNA Integration of key Spatial Water Datasets “surface water geospatial framework”

  4. Hydrologic Units 2-digit= 1st level = 22 regions 4-digit= 2nd level = 222 subregions 6-digit= 3rd level = 789 accounting 8-digit= 4th level = 2223 cataloging new! 10-digit= 5th level = ~22,000 watersheds 12-digit= 6th level = ~160,000 subwatersheds

  5. CO KS NM OK TX

  6. WBD, a “key” part . . . Vision: Follow a drop of water from where it falls on the land, to the stream, and all the way to the ocean.

  7. GOAL: Initial “draft” completed December 2002 Project Status

  8. Watershed Boundary Dataset for Maryland Explanation Shaded Areas Represent 4th Level Sub-basins Watersheds, 5th Level ,HUC10 Subwatersheds, 6th Level, HUC12 Terrestrial hydrologic units completed, coastal 5th and 6th levels are currently being re-delineated by Dr. Randy Ferguson of NOAA. Recently completed and submitted

  9. Subcommittee on Spatial Water Data Coastal Watersheds Work Group Guidelines Work Group FGDC HUC Interagency Guideline

  10. Geomorphology

  11. PROBLEMS IN COASTAL AREAS ? ? ? ?

  12. NOAA/NOS Implementation • Pilots • Coastal delineation guidance • state/coast implementation • Assisting state groups • Workshops • Data and data manipulation • One-on-one with States

  13. Watershed Boundary Dataset Line Attribution (.aat) Item name Width Output Type N.Dec. Example Linesource 20 20 C - DEM30,DRG24,GPS Meta_id 4 4 C - OK01 WBD metadata/attribution session Thursday morning Kenny Legleiter Info File Naming Convention MO_com_poly MO_com_line Item name Width Output Type N.Dec. Example MO_com_poly# 4 5 B - 5 Comment 80 80 C - Levee influenced boundary

  14. www.ftw.nrcs.usda.gov/huc_data.html Current version of the HUC GUIDELINES . . .

  15. the end

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