新丰江上游流域最大初损值及其在水文预报中的应用分析  

Analysis of the Maximum Initial Loss in the Upper Reaches of Xinfeng River Basin and Its Application in Hydrological Forecasting

作　　者：林伟平 LIN Wei-ping(Shaoguan Hydrology Sub-bureau,Guangdong Hydrology Bureau,Shaoguan 512028,China)

机构地区：[1]广东省水文局韶关水文分局,韶关512028

出　　处：《价值工程》2024年第34期40-42,共3页Value Engineering

摘　　要：流域最大初损值是流域产流前损失的最大降水量,包括了填洼、下渗、截留等,流域最大初损值在蓄满产流中是一个重要的参数,关系着产流过程的前损值,进而影响径流过程。本文通过挑选符合条件的降水径流场次,计算出新丰江上游的流域最大初损值,并将计算结果应用于新安江模型、综合单位线法进行洪水预报,与实际发生洪水拟合,以验证流域最大初损值的合理性。The maximum initial loss value of a basin is the maximum precipitation lost before runoff generation,including depression filling,infiltration,interception,etc.The maximum initial loss value of a basin is an important parameter in full storage runoff generation,which relates to the previous loss value of runoff generation process,and then affects the runoff process.In this paper,the maximum initial loss value of the upper reaches of Xinfeng River basin is calculated by selecting eligible precipitation runoff field times,and the calculation results are applied to the Xin'an River model and the comprehensive unit hydrograph method for flood forecasting,which are matched with the actual flood to verify the rationality of the maximum initial loss value of the basin.

关 键 词：新丰江中上游 流域最大初损值 预报应用 

分 类 号：TV12[水利工程—水文学及水资源]