Results 21 to 30 of about 5,645 (215)

Hyporheic flow in aquatic Ranunculus habitats in temperate lowland rivers in Central Europe

Ecological Indicators, 2023
The study attempted to assess the influence of the filtration stream and hydraulic gradient in the hyporheic zone on the distribution of water crowfoot (Ranunculus sect.
Marek Marciniak, Daniel Gebler, Mateusz Grygoruk, Joanna Zalewska-Gałosz, Krzysztof Szoszkiewicz   +4 more
doaj   +1 more source

A multirate mass transfer model to represent the interaction of multicomponent biogeochemical processes between surface water and hyporheic zones (SWAT-MRMT-R 1.0) [PDF]

Geoscientific Model Development, 2020
Surface water quality along river corridors can be modulated by hyporheic zones (HZs) that are ubiquitous and biogeochemically active. Watershed management practices often ignore the potentially important role of HZs as a natural reactor.
Y. Fang, X. Chen, J. Gomez Velez, X. Zhang, Z. Duan, G. E. Hammond, A. E. Goldman, V. A. Garayburu-Caruso, E. B. Graham   +8 more
doaj   +1 more source

Breakthrough curve moments scaling in hyporheic exchange [PDF]

Water Resources Research, 2015
AbstractThe interaction between stream flow and bed forms creates an uneven distribution of near‐bed energy heads, which is the driving force of hyporheic exchange. Owing to the large disparity of advection characteristic times in the stream and within the hyporheic zone, solute mass exchange is often modeled by considering the latter as an immobile ...
Bellin, Alberto, Tonina, D., Marzadri, Alessandra   +2 more
openaire   +2 more sources

Faunal response to benthic and hyporheic sedimentation varies with direction of vertical hydrological exchange [PDF]

, 2014
1. Sedimentation and clogging of benthic and hyporheic zone substrates is increasingly being recognised as one of the greatest threats to the ecological integrity of riverine ecosystems globally. This ex-situ study examined the influence of sedimentation
Bo, Boano, Boulton, Boulton, Boulton, Brunke, Brunke, Bruno, Collins, Davy-Bowker, Descloux, Descloux, Descloux, Dole-Oliver, Dunbar, Evans, Extence, Fowler, Franken, Gayraud, Gledhill, Greig, Huettel, IBM Corp, Izagirre, Jones, Jones, Joyce, Kemp, Krause, Larned, Larson, MacNeil, MacNeil, Malcolm, Maridet, Navel, Olsen, Pacioglu, Packman, Packman, Pepin, Plenet, Ren, Richards, Robertson, Ryan, Sarriquet, Simpson, Studinski, Stump, Taylor, Walters, Wang, Weigelhofer, Wood, Wood, Xu, Zweig   +58 more
core   +2 more sources

Imaging hyporheic exchange [PDF]

Eos, Transactions American Geophysical Union, 2012
The dynamics of flow through the subterranean area at the base and along the sides of streambeds, known as the hyporheic zone, affect stream ecosystem dynamics, but researchers do not have a solid understanding of what controls the amount of hyporheic exchange.Ward et al. injected tracers into a stream in the H.J.
openaire   +1 more source

Benthic and hyporheic invertebrate community responses to seasonal flow recession in a groundwater-dominated stream [PDF]

, 2011
Natural hydrological variability in lotic ecosystems can include prolonged periods of flow recession. A reduction in discharge is accompanied by abiotic changes in benthic and hyporheic habitats, often including reductions in s habitat availability ...
Banks, Boulton, Boulton, Boulton, Boulton, Caruso, Clarke, Clinton, Cooling, Covich, Datry, Datry, Death, Dewson, Dewson, Dole-Olivier, Dole-Olivier, Franken, Griffith, Hannaford, Hannah, James, James, James, Lake, Langan, Malard, Malcolm, Malcolm, Maridet, Marmonier, McGrath, McIntosh, Monk, Murdoch, Olsen, Storey, Stubbington, Stubbington, Stubbington, Webb, Wisenden, Wood, Wood, Wood, Wood   +45 more
core   +1 more source

Influence of Morphology and Permafrost Dynamics on Hyporheic Exchange in Arctic Headwater Streams under Warming Climate Conditions [PDF]

, 2008
We investigated surface-subsurface (hyporheic) exchange in two morphologically distinct arctic headwater streams experiencing warming (thawing) sub-channel conditions.
Bowden, W. Breck, Bradford, John H., Brosten, Troy R., Gooseff, Michael N., Greenwald, Morgan J., McNamara, James P., Zarnetske, Jay P.   +6 more
core   +2 more sources

Dynamic Hyporheic Zones: Exploring the Role of Peak Flow Events on Bedform‐Induced Hyporheic Exchange [PDF]

Water Resources Research, 2019
AbstractDischarge varies in space and time, driving hyporheic exchange processes in river corridors that affect biogeochemical cycling and ultimately control the dynamics of biogeochemical hot spots and hot moments. Herein, we use a reduced‐order model to conduct the systematic analysis of the interplay between discharge variability (peak flow ...
Singh, Tanu, Wu, Liwen, Gomez‐Velez, Jesus D., Lewandowski, Jörg, Hannah, David M., Krause, Stefan   +5 more
openaire   +1 more source

Bed form-induced hyporheic exchange and geochemical hotspots [PDF]

Advances in Water Resources, 2021
Small-scale bed form topographies control hyporheic exchange and biogeochemical processes within aquatic sediments, which ultimately affect water quality and nutrient cycling at the watershed scale. The impact of three-dimensional (3D) and small-scale bed form topographies on hyporheic exchange and solute mixing is investigated in the present work. The
Faranak Behzadi, Corey D. Wallace, Dylan Ward, Haiyan Zhou, Roelof Versteeg, Mohamad Reza Soltanian   +5 more
openaire   +2 more sources

Logjam Characteristics as Drivers of Transient Storage in Headwater Streams

Water Resources Research, 2023
Logjams in a stream create backwater conditions and locally force water to flow through the streambed, creating zones of transient storage within the surface and subsurface of a stream.
A. Marshall, X. Zhang, A. H. Sawyer, E. Wohl, K. Singha   +4 more
doaj   +1 more source