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(Article of periodic en Anglais - 2014)

Document title

Recent variation in reach-scale bankfull discharge in the Lower Yellow River

Authors(s) and Affiliation(s)

XIA J. (1) ; LI X. (1) ; ZHANG X. (1) ; LI T. (1 2) ;
(1) State Key Lab. of Water Resources and Hydropower Engineering Science, Univ., Wuhan, CHINE
(2) Yellow River Inst. of Hydraulic Research, YRCC, Zhengzhou, CHINE

Abstract

In this study, a general method to calculate cross-sectional bankfull discharge using the simulated stage-discharge relation is outlined briefly, and an integrated method is then proposed for estimating reach-scale bankfull discharge along the Lower Yellow River (LYR). The proposed method integrates a geometric mean based on the log-transformation with a weighted average based on the spacing between 2 consecutive sections, which avoids the shortcomings of previous methods. The post-flood reach-scale bankfull discharges in 3 different channel-pattern reaches of the LYR were estimated annually during the period from 1999 to 2010 using this method, based on surveyed post-flood profiles at 91 sedimentation sections and the measured hydrological data at 7 hydrometric sections. Finally, empirical relationships for different reaches in the LYR were developed between the reach-scale bankfull discharge and the previous four-year average discharge and incoming sediment coefficient during flood seasons

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2014, vol. 39, no6 [pp. 723-734]

Bibliographic references : 35 ref.

Collation : 10 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3474

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
Refdoc record number (ud4) : 28681915 : Permanent link - XML version
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