Stability and asymmetry of tide‐influenced river bifurcations

AP Iwantoro, M van der Vegt… - Journal of Geophysical …, 2022 - Wiley Online Library
Bifurcations are important geomorphological features in tide‐influenced deltas. At
bifurcations, river flow and tides distribute sediment over the channel network and determine …

Defining the length parameter in river bifurcation models: a theoretical approach

M Redolfi - Earth Surface Processes and Landforms, 2023 - Wiley Online Library
One‐dimensional models for river bifurcations rely on a nodal point relation that determines
the distribution of sediments between the downstream branches. The most widely‐adopted …

Free alternate bars in rivers: Key physical mechanisms and simple formation criterion

M Redolfi - Water Resources Research, 2021 - Wiley Online Library
Free alternate bars are large‐scale, downstream‐migrating bedforms characterized by an
alternating sequence of three‐dimensional depositional fronts and scour holes that …

Quasi‐Universal Length Scale of River Anabranches

N Ragno, M Redolfi, M Tubino - Geophysical Research Letters, 2022 - Wiley Online Library
Looping patterns, where channels divide and reconnect further downstream, are
widespread in natural rivers. Here, we build an extensive dataset of different gravel‐bed and …

Viewing second-order phase transitions as a metaphor for river bifurcations

N Ragno - Journal of Fluid Mechanics, 2023 - cambridge.org
The Earth's landscape hosts a variety of patterns resulting from the interaction between a
sediment-carrying fluid and an erodible boundary. Here, the morphodynamics of river …

Modeling steady grain sorting in river bifurcations

N Ragno, M Redolfi, N Tambroni… - Journal of Geophysical …, 2023 - Wiley Online Library
A striking feature of rivers is their ability to sort the sediments composing them. One of the
chief causes for grain sorting consists in the selective transport of different sizes moving …

The effect of emergent vegetation on flow, bedload transport, and bed morphology in a diffluence-confluence unit on a meandering channel

X Liu, S Wang, B Zhang, X Wu, E Huang, M Luo - Journal of Hydrology, 2024 - Elsevier
A diffluence-confluence unit on a meandering channel, coupled with the broadening of the
divergence zone and meander circulation, promotes sediment deposition on the convex …

Exploring the influence of vegetated mid-channel bar on flow and turbulence in bifurcated channels: An experimental approach

KK Nandi, R Kakati, S Dutta, KK Khatua - Advances in Water Resources, 2024 - Elsevier
The evolution of fluvial systems is greatly impacted by mid-channel bars, a typical
morphodynamic process in natural rivers. Sometimes, the growth of vegetation over these …

System‐wide effects of local bed disturbance on the morphological evolution of a bifurcating channel network

W Gao, D Shao, ZB Wang, Z Zhu… - Journal of Geophysical …, 2024 - Wiley Online Library
Deltaic channel networks are important conduits for water and material supplies to the fluvial
and coastal communities. However, increasing human interventions in river deltas have …

[HTML][HTML] Effect of hydrological variability on suspended sediment load at a river junction: a case study

N Khanam, SK Biswal - Water Practice & Technology, 2024 - iwaponline.com
Confluences act as crucial intersection in a fluvial system as they regulate the flow,
sediment, and geomorphological stability. Two of the natural occurrences that have an effect …