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Glen Canyon Dam

Glen Canyon Dam. Determining Best Management Practices. Glen Canyon Dam Location. Source: http://walrus.wr.usgs.gov/grandcan/map.html. Glen Canyon Dam. Determining Best Management Practices. Flow Sedimentation Temperature. Flow Fluctuation.

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Glen Canyon Dam

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  1. Glen Canyon Dam Determining Best Management Practices

  2. Glen Canyon Dam Location Source: http://walrus.wr.usgs.gov/grandcan/map.html

  3. Glen Canyon Dam Determining Best Management Practices • Flow • Sedimentation • Temperature

  4. Flow Fluctuation Flow Statistics Source: http://walrus.wr.usgs.gov/grandcan/watereffects.html

  5. Sedimentation • Trapped Sediment • Decrease Storage Capacity • Concentrates Toxic Compounds • Lack of Floods • Channels Are not Scoured • Beaches are Not Replenished

  6. Controlled Flood 45,000 cubic feet per second (cfs) from March 26 to April 2, 1996 Pre 1996 flood Source: USBR Post 1996 flood Source: USBR

  7. Sedimentation • Controlled Floods • Satellite Imagery and Aerial Photography to map Habitat • Compare Habitat to Species Vitality http://gis.esri.com/library/userconf/proc02/pap0712/p0712.htm

  8. Hydraulic Model Base • Combine Bathymetry and DEM http://gis.esri.com/library/userconf/proc02/pap0712/p0712.htm

  9. Temperature • Temperature Averages 46yF Year Round • Non-native Species Flourish • Native Species Diminish

  10. Future Work • Research data on sand bar formation • Map pre/post temperature data for monitoring points • Map pre/post WQ data • Goal: Find relationship between these data and the general health of the eco system and vitality of natural species to maximize operational beinfits and minimize ecological impacts.

  11. Questions Thank You

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