GIS Geologic Map Finalization: “overview of layers that should be getting close to final”
California’s North Coast Region GIS Layers
description
Transcript of California’s North Coast Region GIS Layers
May 1, 2002Streamflow and Water Availability
Estimates in Ungaged Streams
California’s North Coast Region GIS Layers
California’s North Coast Region GIS Layers
Lorri Peltz-LewisU.S. Bureau of Reclamation
Lorri Peltz-LewisU.S. Bureau of Reclamation
May 1, 2002Streamflow 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
May 1, 2002Streamflow 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.
May 1, 2002Streamflow and Water Availability
Estimates in Ungaged Streams
May 1, 2002Streamflow and Water Availability
Estimates in Ungaged Streams
May 1, 2002Streamflow and Water Availability
Estimates in Ungaged Streams
May 1, 2002Streamflow and Water Availability
Estimates in Ungaged Streams
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May 1, 2002Streamflow 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/
May 1, 2002Streamflow 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/
May 1, 2002Streamflow and Water Availability
Estimates in Ungaged Streams
May 1, 2002Streamflow and Water Availability
Estimates in Ungaged Streams
May 1, 2002Streamflow and Water Availability
Estimates in Ungaged Streams
May 1, 2002Streamflow 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.Challenges for a national database – blank area is San Jose. Hydrology disappears – red line is connector for unknown.
May 1, 2002Streamflow 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/
May 1, 2002Streamflow 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.
May 1, 2002Streamflow and Water Availability
Estimates in Ungaged Streams
HUC250 and CALWATER – status of review here!!!
HUC250 and CALWATER – status of review here!!!
May 1, 2002Streamflow and Water Availability
Estimates in Ungaged Streams
May 1, 2002Streamflow and Water Availability
Estimates in Ungaged Streams
North Coast Watershed Assessment Program
GIS Data and SynthesisChris Keithley
Utilization of high resolution GIS data.
North Coast Watershed Assessment Program
GIS Data and SynthesisChris Keithley
Utilization of high resolution GIS data.