Daily discharge estimation at ungauged river sites using remote sensing

被引：93

作者：

Birkinshaw, S. J. ^{[1
,2
]}

Moore, P. ^{[1
]}

Kilsby, C. G. ^{[1
,2
]}

O'Donnell, G. M. ^{[1
,2
]}

Hardy, A. J. ^{[1
]}

Berry, P. A. M. ^{[3
]}

机构：

[1] Newcastle Univ, Sch Civil Engn & Geosci, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

[2] Newcastle Univ, Ctr Earth Syst Engn Res, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

[3] De Montfort Univ, Earth & Planetary Remote Sensing Lab, Leicester LE1 9BH, Leics, England

来源：

HYDROLOGICAL PROCESSES | 2014年 / 28卷 / 03期

基金：

英国工程与自然科学研究理事会; 英国自然环境研究理事会;

关键词：

radar altimetry; Landsat; remote sensing; discharge estimates; Mekong; Ob; RADAR ALTIMETRY; WATER LEVELS; AMAZON; CALIBRATION; MODEL; ASSIMILATION;

D O I：

10.1002/hyp.9647

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

A methodology is developed to estimate daily river discharge at an ungauged site using remote sensing data. Use is made of ERS-2 and ENVISAT satellite altimetry to provide a time series of river channel stage levels and longitudinal channel slope and Landsat satellite imagery to provide a range of channel widths over a 50km reach of river. The data are substituted into the Bjerklie et al. () equation, which is based on the Manning's resistance equation and has been developed using a global database of channel hydraulic information and discharge measurements. Our methodology has been applied at three locations on the Mekong and Ob Rivers and validated against daily in situ discharge measurements. The results show Nash-Sutcliffe efficiency values of 0.90 at Nakhon Phanom and 0.86 at Vientiane on the Mekong, and 0.86 at Kalpashevo on the Ob. Copyright (c) 2012 John Wiley & Sons, Ltd.

引用

页码：1043 / 1054

页数：12

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