基于改进区域化流量历时曲线的无资料地区径流模拟  

Improved regionalized flow duration curve based runoff simulation of ungauged basin

作　　者：杨邦[1] 刘玉晶[1] 王贵作[2] 

机构地区：[1]水利部海河水利委员会水文局,天津300170 [2]水利部发展研究中心,北京100038

出　　处：《水利水电技术》2012年第11期14-17,共4页Water Resources and Hydropower Engineering

摘　　要：台湾成功大学游保杉教授等人创造性地采用区域化流量历时曲线率定法,利用所推求的区域化流量历时曲线作为水文模型的拟合目标,率定无资料地区的参数,实现了无资料地区径流模拟。作为该法应用的关键,区域化流量历时曲线精度直接关系到模型率定的精度。研究通过趋势拟合对推求的流量历时曲线在形态上进行校正且利用量级调整对曲线的量级大小进一步进行调整,逐步改进区域化流量历时曲线。以此,提高了区域化流量历时曲线率定法的精度,较好地实现了无资料地区日径流过程模拟。The runoff simulation of the ungauged basin is realized through the creative adoption of the calibration method of re- gionalized flow-duration curve by Professor Yu Pao-shan, etc. of National Cheng Kung University in Taiwan, i. e. taking the re- gionalized flow-duration curve to be ascertained as the fitting objective and then calibrating the parameters of the ungauged ba- sin. As the key-link of the application of this method, the accuracy of the regionalized flow-duration is directly related to that of the model calibration. In this study, the pattern of the flow-duration curve to be ascertained is corrected through the trend fitting and the magnitude of the curve is further adjusted by magnitude adjustment, and then the regionalized flow-duration curve is pro- gressively improved. In this way, the accuracy of the calibration method of regionalized flow-duration curve is enhanced and the simulation of the daily runoff process in the ungauged basin is better realized as well.

关 键 词：无资料地区(流域) 流量历时曲线 区域化 水文参数 水文模型 径流模拟 

分 类 号：P333[天文地球—水文科学]