Use of a Continuous Simulation, Process-based Model to Predict Sediment Inflow in Unsurveyed Reservoirs
Project ID: 8653
Principal Investigator: Joel Murray
Research Topic: Water Operation Models and Decision Support Systems
Funded Fiscal Years: 2015
Keywords: unsurveyed reservoir, sedimentation, geowepp, swat
We propose to address the following research question:
1. Are continuous simulation, process-based models capable of predicting annual sediment inflow in unsurveyed reservoirs.
Need and Benefit
Expected lifetimes of reservoirs are affected by many factors, none more significant than sediment capture. Failure to measure or estimate sediment inflow has numerous detrimental effects including: loss of storage capacity, burial of outlet works and/or recreational facilities, downstream erosion and habitat loss. Regular surveys provide estimates of annual sediment inflow, however, surveys are labor intensive and expensive undertakings.
Currently the Bureau of Reclamation manages over 400 storage facilities, but only thirty percent have had resurveys conducted since initial filling. It may be possible to use hydrologic models to estimate sediment inflows based on watershed size, sediment mobility and wildfire susceptibility. This will provide a reasonable estimate of sedimentation rates for unsurveyed reservoirs that will aid in the development of reservoir sedimentation strategies, mitigating the detrimental effects of unaccounted sediment deposition.
Contact the Principal Investigator for information about partners.
Bureau of Reclamation Review
The following documents were reviewed by experts in fields relating to this project's study and findings. The results were determined to be achieved using valid means.
Use of a Continuous Simulation, Process-based Model to Predict Sediment Inflow in Unsurveyed Reservoirs (final, PDF, 1.6MB)
By Joel Murray
Publication completed on September 30, 2015
The following documents were not reviewed. Statements made in these documents are those of the authors. The findings have not been verified.
Tracking Sediment Inflow Into Reclamation's Reservoirs (final, PDF, 369KB)
By Joel Murray (PI)
Publication completed on September 30, 2016