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Water 2014, 6(9), 2717-2731; doi:10.3390/w6092717

Comparing Simple Flood Reservoir Operation Rules

1
Center for Watershed Sciences, University of California Davis, CA 95616, USA
2
David Ford Consulting Engineers, Sacramento, CA 95811, USA
3
Department of Publicity of the Party Committee, 1125 Government Building, Huangyan District, Taizhou 318000, Zhejiang, China
4
Alameda County Flood and Water Conservation District, Hayward, CA 94544, USA
*
Author to whom correspondence should be addressed.
Received: 17 November 2013 / Revised: 14 August 2014 / Accepted: 29 August 2014 / Published: 11 September 2014
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Abstract

The effectiveness of three simple flood operating rules in reducing the peak flow is compared for four simplified hydrograph shapes. The Minimize Flood Peak rule uses available flood storage capacity to store peak flows from an accurate hydrograph forecast. The less demanding Minimize Flooding Frequency operating rule releases water at or below channel capacity until the flood storage pool is filled and outflows are forced to exceed the channel capacity. The Short Forecast Peak Minimization rule minimizes flood peak over a short foreseeable future with existing flood storage capacity. Four simplified hydrograph shapes (triangular, abrupt wave, flood pulse and broad peak) were used. The Minimize Flood Peak rule reduces peak flows better than alternatives, but is often impractical. The Short Forecast Peak Minimization rule reduces peak flows for a wide range of conditions. The Minimize Flood Frequency rule may be more relevant where damages occur abruptly, as in many leveed systems. All rules reduce peak outflow more efficiently for more steeply rising hydrographs. The approach suggests some general insights for flood operations of reservoirs. View Full-Text
Keywords: reservoir operation; hydrographs; peak flow reduction; flood forecasting reservoir operation; hydrographs; peak flow reduction; flood forecasting
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Connaughton, J.; King, N.; Dong, L.; Ji, P.; Lund, J. Comparing Simple Flood Reservoir Operation Rules. Water 2014, 6, 2717-2731.

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