Prospects for discharge estimation through calibrating hydrological model against river width measured from satellites

摘要：

The need for calibration limits direct application of hydrological models in ungauged basins. In this study, a methodology that utilizes cross-sectional water surface width measured from remote sensing images for calibration of hydrological models is proposed. Instead of measured discharge, hydrological model is calibrated against river width measured from space based on hydraulic geometry. The present study uses in situ measured cross-sectional width of Pakse gauging station in the Mekong River basin as a substitute of potentially observable water surface width to explore the applicability of proposed methodology. Results of the case study are promising which motivate further studies of using real remotely sensed width data for discharge estimation under the methodology proposed.

关键词： PUB hydrological model hydraulic geometry remote sensing cross-sectional water surface width

作者: Wenchao SUN Hiroshi Ishidaira Satish Bastola

作者单位: Department of Civil and Environmental Engineering,University of Yamanashi,4-3-11,Takeda,Kofu,Yamanas UMR-Hydrosciences,University of Montpellier-II,34095 Montpellier Cedex 5,France

会议类型: 国际会议

会议名称: The Four Conference of Asia Pacific Association of Hydrology and Water Resources(亚太地区水文水资源协会第4届科学大会)

会议地点: 北京

会议语种:英文

页码: 68-73

在线出版日期: 2008-11-03（万方平台首次上网日期，不代表论文的发表时间）