[HTML][HTML] The role of infrequently mobile boulders in modulating landscape evolution and geomorphic hazards

CM Shobe, JM Turowski, R Nativ, RC Glade… - Earth-Science …, 2021 - Elsevier
A landscape's sediment grain size distribution is the product of, and an important influence
on, earth surface processes and landscape evolution. Grains can be large enough that the …

Local and reach‐scale hyporheic flow response from boulder‐induced geomorphic changes

T Dudunake, D Tonina, WJ Reeder… - Water Resources …, 2020 - Wiley Online Library
Stream hydromorphology regulates in‐stream water flow and interstitial flow of water within
streambed sediments, the latter known as hyporheic exchange. Whereas hyporheic flow has …

The influence of coarse particle abundance and spatial distribution on sediment transport and cluster evolution in steep channels under sediment-starved conditions

W Li, M Saletti, MA Hassan, JPL Johnson, J Carr… - Catena, 2023 - Elsevier
Large particles strongly influence flow resistance, energy dissipation, bed stability, and
channel morphology in mountain streams. We conducted flume experiments to evaluate …

Evaluating Apple iPhone LiDAR measurements of topography and roughness elements in coarse bedded streams

A Monsalve, EM Yager, D Tonina - Journal of Ecohydraulics, 2023 - Taylor & Francis
High resolution topographic data are necessary to understand benthic habitat, quantify
processes at the water-sediment interface, and support computational fluid dynamics …

Boulder array effects on bedload pulses and depositional patches

AN Papanicolaou, AG Tsakiris… - Journal of …, 2018 - Wiley Online Library
The influence of boulders in high gradient gravel‐bed rivers can be significant. Yet few
studies have isolated their role in regulating bedload. It is hypothesized that boulder relative …

Effect of surface hydraulics and salmon redd size on redd‐induced hyporheic exchange

B Bhattarai, B Hilliard, WJ Reeder… - Water Resources …, 2023 - Wiley Online Library
Salmonids create an egg nest, called a redd, in hyporheic streambed gravel to bury their
eggs, characterized by a pit and a hump topography, resembling a dune. Embryos' survival …

How large immobile sediments in gravel bed rivers impact sediment transport and bed morphology

CW McKie, C Juez, BD Plumb, WK Annable… - Journal of Hydraulic …, 2021 - ascelibrary.org
A common approach used to mitigate riverbank erosion and maintain watercourse
alignments has been through the application of riprap or larger, more stable particles to …

Morphodynamics of boulder‐bed semi‐alluvial streams in northern Fennoscandia: A flume experiment to determine sediment self‐organization

LE Polvi - Water Resources Research, 2021 - Wiley Online Library
In northern Fennoscandia, semi‐alluvial boulder‐bed channels with coarse glacial legacy
sediment are abundant, and due to widespread anthropogenic manipulation during timber …

Urban stream syndrome: Quantifying topographic variation along an urban-rural gradient

AW Tranmer, D Caamaño, AE Arteaga - Journal of Environmental …, 2022 - Elsevier
Topographic variation within fluvial systems is essential for providing a mosaic of physical
habitats and supporting the dynamic hydraulic, geochemical, and biological processes that …

[HTML][HTML] On the role of the Froude number on flow, turbulence, and hyporheic exchange in open-channel flow through boulder arrays

Y Liu, Z Tang, L Huang, T Stoesser, H Fang - Physics of Fluids, 2024 - pubs.aip.org
In this paper, the results of numerical simulations of open-channel flow through boulder
arrays at varying Froude numbers are reported. The simulations aim at clarifying the role of …