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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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Glen Canyon Dam

Determining Best Management Practices


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Glen Canyon Dam Location

Source: http://walrus.wr.usgs.gov/grandcan/map.html


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Glen Canyon Dam

Determining Best Management Practices

  • Flow

  • Sedimentation

  • Temperature


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Flow Fluctuation

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


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Sedimentation

  • Trapped Sediment

    • Decrease Storage Capacity

    • Concentrates Toxic Compounds

  • Lack of Floods

    • Channels Are not Scoured

    • Beaches are Not Replenished


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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


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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


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Hydraulic

Model Base

  • Combine Bathymetry and DEM

http://gis.esri.com/library/userconf/proc02/pap0712/p0712.htm


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Temperature

  • Temperature Averages 46yF Year Round

    • Non-native Species Flourish

    • Native Species Diminish


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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.


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Questions

Thank You


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