基于枯汛分期的梯级水库间水位流量单值化研究  

Single valued method for water level and flow between cascade reservoirs based on the stages of flood and dry

作　　者：曹磊 刘明 扎西平措 冯国正 CAO Lei;LIU Ming;ZHAXI Pingcuo;FENG Guozheng(Upper Changjiang River Bureau Hydrological and Water Resources Survey Hydrological Bureau of the Yangtze River Water Resources Commission,Chongqing 400020)

机构地区：[1]长江水利委员会水文局长江上游水文水资源勘测局,重庆400020

出　　处：《中国防汛抗旱》2024年第8期22-26,共5页China Flood & Drought Management

基　　金：国家重点研发计划资助项目(2023YFC3209502);重庆市自然科学基金项目(CSTB2023NSCQ-LZX0089);长江水利委员会水文局科研项目(SWJ-24CJX18);重庆市2022年度技术创新与应用发展专项项目(CSTB2022TIAD-KPX0132)。

摘　　要：梯级水库间水文站受多种因素影响,水位流量关系确定难度大,采用连时序法建立水位流量关系对资料整编、水位流量关系应用等带来诸多不便。提出采用面积等效法,修正因断面形态变化引起的水位变化,以金沙江白鹤滩水文站为例,分别利用枯期、汛期资料建立水位流量关系,从而实现枯期、汛期单值化处理。验证结果表明:该方法简便,切实可行,有利于流量测验、资料整编及应用。枯汛分期建立水位流量关系,为梯级水库间水文站,以及受其他因素影响的水文站的水位流量关系单值化处理提供参考。In view of the influence of various factors in the hydrological station between cascade reservoirs,it is difficult to determine the water level and flow relationship,and the use of the continuous timing method to establish the water level and flow relationship brings some inconvenience to data compilation and the application of water level and flow relationship.The equivalent area method is proposed to correct the water level change caused by the change of cross-sectional morphology,and take the Baihetan hydrological station in Jinsha River as an example,and the water level and flow relationship is established by using the data of dry and flood periods,so as to realize the single-value treatment of dry and flood periods.The results show that the method is simple and feasible,which is conducive to flow testing,data compilation and application.The water level and flow relationship is established in stages between dry and flood to provide a reference basis for the single-valued treatment of the water level and flow relationship between cascade reservoirs and hydrological stations affected by other factors.

关 键 词：梯级水库 水位流量关系 面积等效法 单值化 

分 类 号：P33[天文地球—水文科学] TV61[水利工程—水文学及水资源]