Dynamic Regulation of Reservoir Drought Limit Water Level
Dynamic Regulation of Reservoir Drought Limit Water Level
复制标题
水库抗旱极限水位的动态调控
DOI：
10.1134/s0097807821020147
复制
发表时间：
2021-03
期刊：
影响因子：
1
通讯作者：
Zhao Yong
中科院分区：
文献类型：
--
作者：
Cao Runxiang;Li Fawen;Zhao Yong
多年来一直提出干旱限制水位来指导水库抗旱。现行静态干旱限制水位忽略了不同时期水分的转移关系。本研究以天津市于桥水库为研究区域。为避免传统的典型干旱年选择方法带来的过多主观性，采用6个指标分析了枯水期内来水分布特征，并采用层次凝聚聚类方法提出了枯水期来水“形态”分类。结合水库跨月调水关系，提出了“预警期/干旱极限水位”的数字对表示形式。预警期与初始蓄水量、枯水期来水过程和供水规律有关。为克服枯水期来水过程的不确定性，采用滚动计算机制确定枯水期汛限水位，实现动态调度。最后，将动态水库干旱限制水位与常规方法进行了比较。研究结果表明，干旱限制水位在提高水库抗旱指导实践中具有广阔的发展潜力。
Drought limit water level has been presented to guide reservoir drought resistance for years. However, current static drought limit water levels neglected the water transfer relationship among different periods. In this study, the Yuqiao Reservoir located in Tianjin, China, was taken as the study area. To avoid the excessive subjectivity brought by the conventional typical drought-year selection method, six indicators were used to analyse inflow intra-drought-season distribution characteristics, and a hierarchical agglomeration cluster method was used to propose a classification of the dry season inflow “shape.” To associate with the reservoir inter-month water transfer relationship, a number pair “early warning period/drought limit water level” format was proposed to represent the limit water level. The early warning period turned out to be related to initial water storage, inflow process in dry season and water supply rules. To overcome the uncertainty in inflow process during the dry season, a rolling computation mechanism was applied in determining the drought limit water level, thus dynamic regulation was realized. Finally, the dynamic reservoir drought limit water level was compared with the conventional method. The results suggest that drought limit water level has broad development potential in improving reservoir drought resistance guidance practices.
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DOI：
10.1061/(asce)0733-9496(2004)130:1(83
发表时间：
2004
影响因子：
3.1
作者：
A. Draper;J. Lund
通讯作者：
A. Draper;J. Lund
DOI：
--
发表时间：
2008
期刊：
Advances in Water Science
影响因子：
--
作者：
Zhang Si-long
通讯作者：
Zhang Si-long
影响因子：
3.2
作者：
S. McLelland;A. Nicholas
通讯作者：
S. McLelland;A. Nicholas
DOI：
--
发表时间：
2011
期刊：
Progress in geography
影响因子：
--
作者：
Guo Qiao
通讯作者：
Guo Qiao
中国东江流域径流年内分布及气候变化和人类活动的个体影响
影响因子：
4.3
作者：
Chen, Xiaohong;Chen, Lu;Zhang, Qiang;Zhao, Yong
通讯作者：
Zhao, Yong