Predicting reservoir sedimentation /
(2) use of historical sediment accumulation amounts
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1997.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | (2) use of historical sediment accumulation amounts a stochastic model for synthesizing sequences of streamflows accumulation versus exceedance frequency relationship for a and apply a sediment prediction methodology that (1) makes applied to each reservoir to develop sediment accumulation approximately 3000, 14500, and 14500 acre-feet for Aquilla Reservoirs. For each reservoir, the methodology was characteristics and typically vary greatly over time with compared to the sediment accumulation determined directly consideration in the design of new reservoir projects and in determined from hydrographic surveys to adjust parameters in during future time periods. The approach for estimating flows. The methodology results in (1) an estimate of from the survey. The sediment prediction approach was then historical sediment accumulation and (2) a sediment likelihood of various amounts of sedimentation occurring may vary greatly between reservoirs with different watershed modeling capabilities and (2) reflects the stochastic nature of rainfall and streamflow and the resulting sediment loads. optimal use of available hydrologic data and watershed prediction procedure was applied to Somerville, Granger, and random variations in rainfall and streamflow. relationships between streamflow discharge and sediment load, results of the SWAT simulated sedimentation closely resemble sediment currently accumulated in existing reservoirs and the sediment inflows to a reservoir combines (1) the Soil and Sediments accumulate in reservoirs and significantly decrease Somerville, Granger, and Aquilla Reservoirs, respectively. specified future multiple-year time period. The sediment storage capacity. Predicting sedimentation is an important that preserve the statistical characteristics of the observed the management of existing reservoirs. Sedimentation rates The methodology is designed for predicting both the amount of The objective of the research reported is to develop, test, the observed sedimentation with less than 2 percent error. The sediment prediction results over the next 25-years are the watershed model, (3) recorded reservoir inflows, and (4) time of impoundment to the resurvey. This estimate was versus exceedance frequency curve for the next 25-years. The Water Assessment Tool (SWAT) watershed model for developing |
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| Item Description: | "Major subject: Civil Enginering". Vita. |
| Physical Description: | ix, 184 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references: pages 66-70. |