Permafrost slows Arctic riverbank erosion

EC Geyman, MM Douglas, JP Avouac, MP Lamb - Nature, 2024 - nature.com
The rate of river migration affects the stability of Arctic infrastructure and communities, and
regulates the fluxes of carbon,, nutrients and sediment, to the oceans. However, predicting …

Predicting flow resistance in rough‐bed rivers from topographic roughness: Review and open questions

RI Ferguson, RJ Hardy, RA Hodge… - Earth Surface …, 2024 - Wiley Online Library
Most ways of predicting flow resistance in shallow rivers with a partial or complete cover of
coarse sediment use a bed‐sediment grain diameter as a roughness length scale. However …

A mechanistic model for lateral erosion of bedrock channel banks by bedload particle impacts

T Li, TK Fuller, LS Sklar, KB Gran… - Journal of Geophysical …, 2020 - Wiley Online Library
Bedrock incision plays a key role in determining the pace of landscape evolution. Much is
known about how bedrock rivers incise vertically, but less is known about lateral erosion …

Rough correlations: Meta‐analysis of roughness measures in gravel bed rivers

X Chen, MA Hassan, C An, X Fu - Water Resources Research, 2020 - Wiley Online Library
Bed roughness height (k) is a key parameter for velocity prediction in open‐channel flows.
There is not yet a firm consensus about whether characteristic particle size D84 or (standard …

Surface transient storage under low‐flow conditions in streams with rough bathymetry

P Wang, OA Cirpka - Water Resources Research, 2021 - Wiley Online Library
In natural and restored rivers, protruding river‐bed elements can cause complex flow
patterns. We hypothesize that, particularly at very low flows, solute spreading in such …

[HTML][HTML] An improved method for sand wave morphology discrimination in rivers by combining a flow resistance law and support vector machines

Y Bai, Y Sun, X Song, H Xu - International Journal of Sediment Research, 2024 - Elsevier
A parameterized expression for sand wave morphology in rivers is established using a flow
resistance law while accounting for sediment incipient velocity. A distinct relation is drawn …

Scale dependent spatial structuring of mountain river large bed elements maximizes flow resistance

JS Wiener, GB Pasternack - Geomorphology, 2022 - Elsevier
Macro-roughness elements such as boulders and bedrock outcrops, collectively referred to
as large bed elements (LBEs), are key features influencing hydrodynamics and …

Data‐driven model for river flood forecasting based on a Bayesian network approach

B Boutkhamouine, H Roux… - Journal of Contingencies …, 2020 - Wiley Online Library
Uncertainty analysis of hydrological models often requires a large number of model runs,
which can be time consuming and computationally intensive. In order to reduce the number …

Hydraulic resistance in mixed bedrock-alluvial meandering channels

R Fernández, AJ Vitale, G Parker… - Journal of Hydraulic …, 2021 - Taylor & Francis
We present an experimental analysis of hydraulic roughness variations due to changes in
alluvial cover in a mixed bedrock-alluvial meandering channel with larger bedrock …

[HTML][HTML] Alluvial cover on bedrock channels: applicability of existing models

J Mishra, T Inoue - Earth Surface Dynamics, 2020 - esurf.copernicus.org
Several studies have demonstrated the importance of alluvial cover; furthermore, several
mathematical models have also been introduced to predict the alluvial cover on bedrock …