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A Triple-stage Operation Method for Deriving Operation Rules for Cascade Reservoirs during Catastrophic Flood Events

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Abstract

Alleviating flood stress and reducing flood disaster losses are vital issues when operating flood control systems. To address catastrophic floods, this study establishes an optimal flood control operation model for minimizing the excess flood volume of downstream flood control points. A triple-stage operation method (TSOM) is proposed to solve the model by dividing flood control operation processes into three stages. The constructed model is applied to the operation of a flood control system located in the middle and lower reaches of the Ganjiang River, China. The results demonstrate that the TSOM has superiority in solving efficiency, reducing excess flood volume by more than 30–230 million cubic meters compared with the progressive optimality algorithm (POA) for most designed floods with 500-year return periods. Furthermore, the discharge and water level processes created by the TSOM fluctuate less than those created by the POA, which meets the requirements of practical flood control operations.

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Data are available after request from the corresponding author.

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Funding

This study was financially supported by the National Key Research and Development Program of China (No. 2021YFC3200303), the Research Council of Norway (FRINATEK Project 274310) and the National Key Research and Development Program (No. 2018YFC0407904).

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The first author wrote the draft manuscript and the other authors reviewed and improved the manuscript several times.

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Correspondence to Hua Chen.

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Appendix

Appendix

Fig. 6
figure 6

Sketch of the flood control system and excess flood volume (right)

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figure 7

Illustration for reservoir operation using TSOM

Fig. 8
figure 8

The flow chart of TSOM

Fig. 9
figure 9

The process sketch of POA

Table 3 Characteristic parameters of water projects of the flood control system
Table 4 The CFCO rules of the Wan’an Reservoir (Comprehensive Planning of Ganjiang River Basin 2015)
Table 5 The CFCO rules of the Xiajiang Reservoir (Comprehensive Planning of Ganjiang River Basin 2015)
Table 6 Muskingum coefficients of stream channels (Zhu et al. 2020)
Table 7 Parameter boundary for TSOM

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Zhu, D., Chen, H., Zhou, Y. et al. A Triple-stage Operation Method for Deriving Operation Rules for Cascade Reservoirs during Catastrophic Flood Events. Water Resour Manage 36, 4863–4883 (2022). https://doi.org/10.1007/s11269-022-03189-y

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  • DOI: https://doi.org/10.1007/s11269-022-03189-y

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