Dynamics of Hyporheic Exchange Flux and Fine Particle Deposition Under Moving Bedforms

Teitelbaum, Y.; Dallmann, J.; Phillips, Carl; Packman, Aaron I.; Schumer, R.; Sund, N. L.; Hansen, Scott K.; Arnon, Shai

doi:10.1029/2020wr028541

Cited by 17 publications

(31 citation statements)

References 71 publications

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“…The vertical pattern of particle deposition is clear evidence of the averaging effect caused by the passage of many bedforms. This behavior has been observed previously (Dallmann et al., 2020; Teitelbaum et al., 2021), but our model is the first to show that downward particle fluxes underneath bedforms asymptotically yield a consistent depositional profile of fine particles below the scour zone.…”

Section: Resultssupporting

confidence: 89%

“…Simulated particle deposition profiles were also compared with the experimental observations of Teitelbaum et al. (2021) and found to be statistically equivalent (paired z‐test, z = −5.34 × 10 −16 , p > 0.05; Text S5 in Supporting Information ). Furthermore, simulated particle deposition profiles asymptotically converged to the pattern observed in experiments (Text S6 in Supporting Information ).…”

Section: Resultsmentioning

confidence: 99%

“…Model validation occurred in two steps. Simulated HEF was compared to HEF measured during experiments under similar conditions (Fox et al., 2018; Teitelbaum et al., 2021) using linear regression. Simulated HEF was found to track well with experiments ( y = 1.18 x , r 2 = 0.96, Text S4 in Supporting Information ).…”

Section: Resultsmentioning

confidence: 99%

“…The flow field imposed by the bedform migrates with the bedform as it moves downstream, so the solute plumes migrate with the bedforms as well (see Movie and Teitelbaum et al. [2021]). The highest concentration of the dye in the bed occurred between the heights of 19.5–20 cm above the model bottom, that is, just below the line of most frequent scour depth (MFSD; Figure 2a).…”

Section: Resultsmentioning

confidence: 99%

“…The choice of the modeled physical conditions is based on typical characteristics of sand material, as used by Teitelbaum et al. (2021), to facilitate the comparison of simulation results with the experimental observations. Because we use a wider range of flow conditions in the simulations than appear in Teitelbaum et al.…”

Section: Methodsmentioning

confidence: 99%

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A Novel Framework for Simulating Particle Deposition With Moving Bedforms

Teitelbaum

Shimony

Cifuentes

et al. 2022

Geophysical Research Letters

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Fine suspended particles are ubiquitous in streams and rivers. Suspended material typically includes sedimentary particles (Wharton et al., 2017), particulate organic matter (Johnson et al., 2018), microplastics (Li et al., 2020, and microbiota such as bacteria, algae, and viruses (Lenaker et al., 2018). Transport and deposition of fine suspended particles play a key role in regulating river-groundwater interactions, river morphodynamics, and hyporheic biogeochemistry (Boano et al., 2014). Clay particle deposition decreases streambed hydraulic conductivity by filling porespace, ultimately clogging the bed, altering patterns of porewater flow, and degrading the benthic and hyporheic ecosystem (Brunke, 1999;Brunke & Gonser, 1997;Fox et al., 2018). Clay in the streambed can also reduce bed sediment motion (Dallmann et al., 2020). The deposition of fine particulate organic matter drives hyporheic metabolism (Newbold et al., 2005) and plays an important role in fluvial carbon cycling (Brunke & Gonser, 1997;Hope et al., 1994). Additionally, fine sediment particles play an important role in the colloid-facilitated transport of sorbed metals (Droppo et al., 2014;Foster & Charlesworth, 1996), as well as the accumulation of contaminants in bed sediment (Arce et al., 2017;Stone & Droppo, 1994). Despite the importance of spatial patterns of particle deposition for hyporheic ecosystems, fluvial biogeochemical processes, and river contamination most studies of riverine fine particles focus on the water column (Drummond et al., 2019;Park & Hunt, 2018;. Considerably less effort has been put into understanding the dynamics

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Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

A Novel Framework for Simulating Particle Deposition With Moving Bedforms

Teitelbaum

Shimony

Cifuentes

et al. 2022

Geophysical Research Letters

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Streambed migration frequency drives ecology and biogeochemistry across spatial scales

et al. 2023

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The bed of fluvial ecosystems plays a major role in global biogeochemical cycles. All fluvial sediments migrate and although responses of aquatic organisms to such movements have been recorded there is no theoretical framework on how the frequency of sediment movement affects streambed ecology and biogeochemistry. We here developed a theoretical framework describing how the moving-resting frequencies of fine-grained sediments constrain streambed communities across spatial scales. Specifically, we suggest that the most drastic impact on benthic and hyporheic communities will exist when ecological and biogeochemical processes are at the same temporal scale as the sediment moving-resting frequency. Moreover, we propose that the simultaneous occurrence of streambed patches differing in morphodynamics should be considered as an important driver of metacommunity dynamics. We surmise that the frequency of patch transition will add new dimensions to the understanding of biogeochemical cycling and metacommunities from micro-habitat to segment scales. This theoretical framework is important for fluvial ecosystems with frequent sediment movement, yet it could be applied to any other dynamic habitat.

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The social connectivity of subsurface flows: Towards a better integration of the vertical dimension in socio‐hydrosystem studies

Boyer,

Blanchon,

Schmitt

et al. 2023

WIREs Water

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This contribution points out that while the importance of hydrologic, geomorphic, ecological, temporal, and socio‐cultural connectivity in the functioning of hydrosystems has been acknowledged in three dimensions (longitudinal, lateral, and vertical), vertical connectivity has often been overlooked. Drawing on a multidisciplinary literature review, the authors aim to highlight the socio‐cultural connectivity of subsurface flows and aquifers as a crucial factor for socio‐hydrosystem understanding and management. The piece builds on emergent literature which underscores how groundwater, shallow groundwater, and the hyporheic zone are coproduced by nature and society through time. Furthermore, the review explores how verticality has become an important heuristic dimension at the intersection of the environmental and social sciences, and there has been a particular focus on the hyporheic zone to look at how notions of interstitiality and (in)visibility can be better integrated with socio‐hydrosystem science and management. Finally, the paper calls for further research to integrate the vertical dimension of hydrosystems into more comprehensive socio‐hydrological frameworks, which remain, at times, empirically and theoretically weak on questions of social power, even if they do incorporate aspects of political systems. Especially as societies' relationships to groundwater may be at the heart of climate change adaptation strategies, greater consideration of the social connectivity to subflows is a necessary direction for sustainable water resource management and scholarship.This article is categorized under: Human Water > Water Governance Science of Water > Hydrological Processes Science of Water > Water and Environmental Change

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Dynamics of Hyporheic Exchange Flux and Fine Particle Deposition Under Moving Bedforms

Cited by 17 publications

References 71 publications

A Novel Framework for Simulating Particle Deposition With Moving Bedforms

A Novel Framework for Simulating Particle Deposition With Moving Bedforms

Streambed migration frequency drives ecology and biogeochemistry across spatial scales

The social connectivity of subsurface flows: Towards a better integration of the vertical dimension in socio‐hydrosystem studies

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