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《Journal of Hydroelectric Engineering》 2016-01
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Recheck analysis of reservoir extreme flood control risk using inconsistent hydrological sequences

HUANG Kai;FENG Ping;State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University;  
The consistency of hydrological sequences was lost due to climate change and human activities. To conduct a recheck analysis on extreme flood control risk using inconsistent hydrological sequences, we selected as the study area the watershed of the Xidayang reservoir that was subjected to significant changes in land surface conditions, and applied the hydrological variation diagnosis system to an annual maximum peak flow series of this reservoir to detect its change trend, change point, and type of change. Then, a frequency analysis method for inconsistent hydrological series was developed to calculate this peak flow series for the past and current land surface conditions, and hence the corresponding design peak flows of different frequencies was obtained. Finally, we took the check flood level of the reservoir as the control index on its extreme flood control risk and estimated this extreme risk using the frequency analysis method. The calculations reveal that for the past and current land surface conditions the extreme risks were 0.008% and 0.005%, respectively. It is obvious that these rechecked extreme risk values are lower than the check flood criterion, i.e. a 10000-year flood(0.01%). The results provide technical guidance for the Xidayang reservoir with respect to its dynamic flood level control, full utilization of flood resource in flood season, and improvement of comprehensive benefits.
【Fund】: 国家自然科学基金(51179117;51209157)
【CateGory Index】: TV697.13
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 LI Xiang,GUO Sheng-lian,LIU Pan,WAN Min,LIU Xin-yuan (State Key Lab.of Water Resources and Hydropower Eng.Sci.,Wuhan Univ.,Wuhan 430072,China);The Dynamic Control Bound of Flood Limited Water Level Considering Inflow Uncertainty in Three Gorges Reservoir[J];Journal of Sichuan University(Engineering Science Edition);2010-03
【Co-citations】
Chinese Journal Full-text Database 3 Hits
1 ZHOU Yanlai,GUO Shenglian,LIU Dedi,CHEN Jionghong,LI Yu(State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University,Wuhan 430072);Real-time dynamic operation of small and median floods for the Three Gorges cascade and Qing river cascade reservoirs[J];Journal of Hydroelectric Engineering;2013-03
2 ZHONG Pingan;KONG Yan;WANG Xudan;XU Bin;WANG Yuhua;Hohai University;Lianyungang Municipal Water Conservancy Planning and Designing Institute Co. Ltd. of Jiangsu Province;Tianjin survey and Management Center of Hydrology and Water Resources;China Three Gorges Corporation;;Study on method for estimation of dynamic control bounds of flood limited water level in cascade reservoirs[J];Journal of Hydroelectric Engineering;2014-05
3 Shenglian Guo;Yun Wang;Yanlai Zhou;Jiabo Yin;State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University;;Optimal Control of Flood Water Resources for the Danjiangkou Reservoir[J];Journal of Water Resources Research;2015-01
【Secondary Citations】
Chinese Journal Full-text Database 3 Hits
1 HUANG Zhen-ping 1, SHEN Fu-xin 2, ZHU Yuan-sheng 1, WANG Dao-xi 1 (1.Hohai University, Nanjing 210098, China;2.Nanjing Institute of Hydrology and Water Resources, Nanjing 210024, China);Study on the Risk Analysis Method of Flood-Control Decision Based on Water Stage Forecast[J];Advances In Water Science;2001-04
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