Skip to Main content Skip to Navigation
Journal articles

A single width-discharge regime relationship for individual threads of braided and meandering rivers from the Himalayan Foreland

Abstract : We explore the existence of a single width-discharge regime relation for allu-vial rivers of braided and meandering patterns. The study relies on the field measurement of a channel's cross section geometry (width, depth), discharge, and grain size of 98 individual threads of braided and meandering rivers from the Ganga-Brahmaputra plains of the Himalayan Foreland. Using this data set, we show that, irrespective of the diverse climatic and geologic setting along the strike, the braided and meandering threads share statistically indistinguishable regime relations and scale according to Lacey's law. To explain the observed trend in this empirical relationship, we use the threshold theory introduced by Glover and Florey (1951). Using this theory we detrend our data with respect to discharge to produce a statistically homogeneous ensemble of width measurements. The statistical distribution of the detrended width is similar for braided and meandering threads of the entire plains of * Kumar Gaurav ACCEPTED MANUSCRIPT the Foreland. This suggests that when we decompose a braided river into individual threads, each of these resemble single-thread meandering rivers. Based on this study, we conclude that the individual threads of braided and meandering rivers of the Himalayan Foreland are geometrically comparable and share a common width-discharge regime relation.
Document type :
Journal articles
Complete list of metadata

Cited literature [41 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01571299
Contributor : Olivier Devauchelle Connect in order to contact the contributor
Submitted on : Wednesday, August 2, 2017 - 10:26:42 AM
Last modification on : Friday, January 7, 2022 - 3:55:42 AM

File

Gauravetal2017_2.pdf
Files produced by the author(s)

Identifiers

Citation

Kumar Gaurav, S K Tandon, Olivier Devauchelle, Rajiv K Sinha, François Métivier. A single width-discharge regime relationship for individual threads of braided and meandering rivers from the Himalayan Foreland. Geomorphology, Elsevier, 2017, 295, pp.126-133. ⟨10.1016/j.geomorph.2017.07.004⟩. ⟨hal-01571299⟩

Share

Metrics

Record views

141

Files downloads

197