1. May 1, 2002 Streamflow and Water Availability Estimates in Ungaged Streams California’s North Coast Region GIS Layers Lorri Peltz-Lewis U.S. Bureau of Reclamation Lorri Peltz-Lewis U.S. Bureau of Reclamation

2. May 1, 2002 Streamflow and Water Availability Estimates in Ungaged Streams Watershed Basin Characteristics: Total Drainage, Contributing Drainage, Non-Contributing Drainage, Perimeter, Shape Factors, Effective Width, Compactness, Elongation, Relief, Relative Relief, Total Stream Length, Main Channel Length, Channel Slope, Basin Slope, Basin Length, Drainage Density, etc. Geospatial Data Layers Reviewed Here: National Elevation Data (NED) or Digital Elevation Model (DEM) National Hydrologic Database (NHD) Elevation Derivatives for National Applications (EDNA) Watersheds - CALWATER Watershed Basin Characteristics: Total Drainage, Contributing Drainage, Non-Contributing Drainage, Perimeter, Shape Factors, Effective Width, Compactness, Elongation, Relief, Relative Relief, Total Stream Length, Main Channel Length, Channel Slope, Basin Slope, Basin Length, Drainage Density, etc. Geospatial Data Layers Reviewed Here: National Elevation Data (NED) or Digital Elevation Model (DEM) National Hydrologic Database (NHD) Elevation Derivatives for National Applications (EDNA) Watersheds - CALWATER

3. May 1, 2002 Streamflow and Water Availability Estimates in Ungaged Streams National Elevation Data (NED) Seamless raster elevation database Combination of 10 & 30 m – final currently 30 m – future will be 10 m. Processing to eliminate merge problems Digital Elevation Model (DEM) Raster elevation database 10 & 30 m data files Tiled by quadrangle Others: LIDAR, SAR, RADAR, etc. National Elevation Data (NED) Seamless raster elevation database Combination of 10 & 30 m – final currently 30 m – future will be 10 m. Processing to eliminate merge problems Digital Elevation Model (DEM) Raster elevation database 10 & 30 m data files Tiled by quadrangle Others: LIDAR, SAR, RADAR, etc.

4. May 1, 2002 Streamflow and Water Availability Estimates in Ungaged Streams

5. May 1, 2002 Streamflow and Water Availability Estimates in Ungaged Streams

6. May 1, 2002 Streamflow and Water Availability Estimates in Ungaged Streams

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8. May 1, 2002 Streamflow and Water Availability Estimates in Ungaged Streams References: Gesch, Dean et.al, 2002. The National Elevation Dataset, PE&RS January 2002. www.asprs.org/asprs/publications/pe&rs/2002journal/january/highlight.html Franken, S.K. et.al, 2001. Development of a National Seamless Database of Topograhy and Hydrologic Deravatives, ESRI 2001 Users Conference www.esri.com/library/userconf/proc01/professional/papers/pap730/p730.htm http://edcnts12cr.usgs.gov/ned/ References: Gesch, Dean et.al, 2002. The National Elevation Dataset, PE&RS January 2002. www.asprs.org/asprs/publications/pe&rs/2002journal/january/highlight.html Franken, S.K. et.al, 2001. Development of a National Seamless Database of Topograhy and Hydrologic Deravatives, ESRI 2001 Users Conference www.esri.com/library/userconf/proc01/professional/papers/pap730/p730.htm http://edcnts12cr.usgs.gov/ned/

9. May 1, 2002 Streamflow and Water Availability Estimates in Ungaged Streams National Hydrologic Database (NHD) Seamless vector hydrology database representing surface hydrology 100K currently available, 24K under development Comprehensive inter-related relational database. http://nhd.usgs.gov/ National Hydrologic Database (NHD) Seamless vector hydrology database representing surface hydrology 100K currently available, 24K under development Comprehensive inter-related relational database. http://nhd.usgs.gov/

10. May 1, 2002 Streamflow and Water Availability Estimates in Ungaged Streams

11. May 1, 2002 Streamflow and Water Availability Estimates in Ungaged Streams

12. May 1, 2002 Streamflow and Water Availability Estimates in Ungaged Streams

13. May 1, 2002 Streamflow and Water Availability Estimates in Ungaged Streams Challenges for a national database – blank area is San Jose. Hydrology disappears – red line is connector for unknown.

14. May 1, 2002 Streamflow and Water Availability Estimates in Ungaged Streams Elevation Derivatives for National Applications (EDNA): New Product!! Systematic derivation of standard hydrologic derivatives using NED and NHD http://edcnts12cr.usgs.gov/ned-h/ Elevation Derivatives for National Applications (EDNA): New Product!! Systematic derivation of standard hydrologic derivatives using NED and NHD http://edcnts12cr.usgs.gov/ned-h/

15. May 1, 2002 Streamflow and Water Availability Estimates in Ungaged Streams Watersheds Basin Delineation: USGS HUC 250K Original delineations done by USGS Problem areas – Central Valley CALWATER 24K Delineations for California Not all watershed oriented, some administrative boundaries http://www.ca.nrcs.usda.gov/wps/calwater CA delineations being reviewed following NRCS & USGS national methodology. Watersheds Basin Delineation: USGS HUC 250K Original delineations done by USGS Problem areas – Central Valley CALWATER 24K Delineations for California Not all watershed oriented, some administrative boundaries http://www.ca.nrcs.usda.gov/wps/calwater CA delineations being reviewed following NRCS & USGS national methodology.

16. May 1, 2002 Streamflow and Water Availability Estimates in Ungaged Streams HUC250 and CALWATER – status of review here!!!

17. May 1, 2002 Streamflow and Water Availability Estimates in Ungaged Streams

18. May 1, 2002 Streamflow and Water Availability Estimates in Ungaged Streams North Coast Watershed Assessment Program GIS Data and Synthesis Chris Keithley Utilization of high resolution GIS data. North Coast Watershed Assessment Program GIS Data and Synthesis Chris Keithley Utilization of high resolution GIS data.