1. SUBCOMMITTEE spatial water data Coastal Work Group Meeting April 11, 2001

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

3. SUBCOMMITTEE spatial water data Subcommittee on Spatial Water Data Guidelines Work Group Coastal Watersheds Work Group FGDC HUC Interagency Guideline

4. SUBCOMMITTEE spatial water data SUBCOMMITTEE Guidelines Workgroup Meeting, April 10&11, 2000

5. SUBCOMMITTEE spatial water data 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 10-digit= 5th level = ~22,000 watersheds 12-digit= 6th level = ~160,000 subwatersheds new!

6. SUBCOMMITTEE spatial water data HUC History WRC 1960’s Hydrologic Units 1970’s NRCS pioneer late 80’s & early 90’s USGS, BLM, USFS review Subcommittee 2000 –Many agencies helping to build high resolution datasets

7. SUBCOMMITTEE spatial water data Watershed Boundary Dataset WBD

8. SUBCOMMITTEE spatial water data Integration of key Spatial Water Datasets National Hydrography Dataset (NHD) Watershed Boundary Dataset (WBD) National Elevation Dataset (NED) Hydrologic Derivatives (NED-H) focus:

9. SUBCOMMITTEE spatial water data Partnering Agencies NRCS USGS USFS NWS EPA State & Regional Agencies Water Resource Consortium No one agency can do this by themselves!

10. SUBCOMMITTEE spatial water data Methods / Approaches to delineating watersheds/subwatersheds manual semi-automated (NED/NED-H) –QA, delineate some/many HUCs

11. SUBCOMMITTEE spatial water data MANUAL vs AUTOMATED don’t know manual automated Interior of U.S. is getting done

12. SUBCOMMITTEE spatial water data NED National Elevation Dataset

13. SUBCOMMITTEE spatial water data National Weather Service

14. SUBCOMMITTEE spatial water data

15. SUBCOMMITTEE 5000pixels 2 sq.miles!

16. SUBCOMMITTEE spatial water data coastaldelineationOptions?

17. SUBCOMMITTEE Carto-basedoptions

18. SUBCOMMITTEE “land limited” coastlinedependant

19. SUBCOMMITTEE spatial water data “sphere of influence” coastlineindependent

20. SUBCOMMITTEE spatial water data

21. SUBCOMMITTEE “whole island approach” coastlineindependent

22. SUBCOMMITTEE spatial water data

23. SUBCOMMITTEE GeologicprocessBasedoptions

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

25. SUBCOMMITTEE spatial water data Issues to be resolved Coastline – can watersheds be independent of coastline? Estuarine systems – no clear hydrologic controls of flow. Deltaic coastlines – streams do not converge to a point. Barrier Islands – are they their own hydrologic unit or defined by area of influence? Island Groups – (e.g. FL Keys, Pacific Islands, Aleutian, Tongas Nat. Forest)

26. SUBCOMMITTEE spatial water data Target Dates: Jan’01 “draft” Unified Guideline into Subcommittee and FGDC review –“place holder” in Unified Guideline Sept’01 “coastal guideline” addendum into review Sept’01 submission as FGDC Standard Guideline

27. SUBCOMMITTEE spatial water data For additional information visit... water.usgs.gov/wicp www.fgdc.gov www.ftw.nrcs.usda.gov http://www.ftw.nrcs.usda.gov/huc_data.html rrpierce@usgs.gov

28. SUBCOMMITTEE spatial water data