Calibration of rainfall-runoff models based on satellite observations of river width at the basin outlet

被引：0

作者：

Sun, Wenchao ^{[1
]}

Ishidaira, Hiroshi ^{[2
]}

Bastola, Satish ^{[3
]}

Wu, Sushu ^{[4
]}

机构：

[1] Beijing Normal Univ, Coll Water Sci, Xinjiekouwai St 19, Beijing 100875, Peoples R China

[2] Univ Yamanashi, Dept Civil & Environm Engn, Kofu, Yamanashi 4008511, Japan

[3] Natl Univ Ireland, Maynooth, Kildare, Ireland

[4] Jiangsu Hydraul Res Inst, Nanjing 210017, Jiangsu, Peoples R China

来源：

REMOTE SENSING AND HYDROLOGY | 2012年 / 352卷

关键词：

large ungauged basins; Manning equation; cross-sectional geometry derived from ALOS PRISM DSM; satellite measurement of river width; calibration of rainfall-runoff model;

D O I：

暂无

中图分类号：

TP7 [遥感技术];

学科分类号：

081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

In this study, river cross-sectional geometry was extracted from a high resolution Digital Surface Model (DSM). Then the derived information was combined with the Manning equation to describe the relation between discharge and cross-sectional water surface width. By integrating a rainfall-runoff model with this relation, which is used to describe the hydraulic relation at the basin outlet, it is possible to calibrate the rainfall-runoff model using satellite observations of river width. The method is demonstrated through a case study in the Mekong Basin. The results show that it could be an effective approach for discharge estimation in large ungauged basins.

引用

页码：468 / +

页数：2

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