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Using USGS’ National Geospatial Program and National Hydrography Database in Indian Country

Using USGS’ National Geospatial Program and National Hydrography Database in Indian Country. 20 th Annual Region 9 Tribal/EPA Conference 11-29-12. Outline. Introductions What is the NHD? W hy is it important to Tribes ?.

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Using USGS’ National Geospatial Program and National Hydrography Database in Indian Country

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  1. Using USGS’ National Geospatial Program and National Hydrography Database in Indian Country 20th Annual Region 9 Tribal/EPA Conference 11-29-12

  2. Outline • Introductions • What is the NHD? • Why is it important to Tribes?

  3. Kimberly Johnston-Dobbskimberly.johnston-dodds@water.ca.govChristina Boggschristina.boggs@water.ca.gov USGS Contacts Carol OstergrenNational Geospatial Programcostergren@usgs.gov Hank Nelson Technical NHD Lead hpnelson@usgs.gov

  4. What is the NHD and why is it important to Tribes?

  5. What is the National Hydrography Dataset? Essentially the surface water features found on topographic maps

  6. High Resolution National Hydrography Dataset Statistics 1 - Not including the Great Lakes 2 - Including only river polygon area, not single-line river area 3 - Typically water filtration, sewage treatment, fish hatcheries 4 - Based on USGS topographic mapping standards – not National Wetland Inventory 5 - Difference between normal pool area of lakes and area at spillway height

  7. High Resolution National Hydrography Dataset Statistics 1 – Generic, perennial, and intermittent single-line streams 2 – Linear pathway distance through lakes, river polygons, canal polygons, and some marsh/swamp 3 – Pathway known to exist, but not seen on imagery 4 – Including Great Lakes 5 – Not conclusive

  8. Streams – Creating the fundamental network Perennial Swan Creek Intermittent Ephemeral

  9. Flow Direction – Providing intelligence to the data

  10. Navigation – The basis for analysis

  11. Navigation – Where does a toxic spill go?

  12. Linear Referencing – Stream “Reaches” Reach 14010002000421 Reach 14010002003345

  13. Linear Referencing – Stream addresses 14010002000421 0 50 25 75 100

  14. Linear Referencing – Data “Events” USGS Streamgage 09050000 Coordinate 106 05 13.955 W 39 32 43.472 N Address: Reach – 14010002000421 Measure – 19.8392

  15. The river gains intelligence about streamflow

  16. Connecting the streamgage to the network Blue River Artificial Path (Blue River) Streamgage Downstream Dam Green Mountain Reservoir Upstream

  17. Dams and Streamgages Integrated with the NHD

  18. nationalmap.gov

  19. Chemistry Lakes Cutthroat Trout Transportation Orthoimagery Fish Habitat National Hydrography Dataset Streams Structures Hydrography Elevation The National Map Watershed Boundary Dataset Map Portal

  20. PASSAGE BARRIERS IN CALIFORNIA

  21. NHDPlus estimates only natural stream flow ColoradoRiver Photo courtesy of Jonathan Waterman Flow volume estimates in the NHDPlus do not account for diversions

  22. Trans - Basin Diversions 3 Levels Regional Subregional Subbasin

  23. Inter- Regional

  24. Inter- Regional Colorado River Aqueduct Diversion 242 miles long 1.2 million acre-feet per year

  25. Inter- Subregional

  26. Inter- Subregional • California Aqueduct • 444 miles long • 2.6 million acre-feet per year

  27. Inter- Subbasin

  28. California Diversions

  29. Thank for your attention this afternoon! A cartographic curiosity - Any guesses what this is? More info at www.nhd.usgs.gov

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