Articles | Volume 6, issue 2
https://doi.org/10.5194/esurf-6-487-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-6-487-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
14 Jun 2018
Research article |
| 14 Jun 2018
| 14 Jun 2018
The influence of a vegetated bar on channel-bend flow dynamics
Sharon Bywater-Reyes
CORRESPONDING AUTHOR
Department of Geosciences, University of Montana, 32 Campus Drive
no. 1296, Missoula, MT 59812, USA
Department of Earth and Atmospheric Sciences, University of Northern
Colorado, 501 20th St., Greeley, CO 80639, USA
Rebecca M. Diehl
Department of Geosciences, University of Montana, 32 Campus Drive
no. 1296, Missoula, MT 59812, USA
Andrew C. Wilcox
Department of Geosciences, University of Montana, 32 Campus Drive
no. 1296, Missoula, MT 59812, USA
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Sharon Bywater-Reyes and Beth Pratt-Sitaula
Geosci. Commun., 5, 101–117, https://doi.org/10.5194/gc-5-101-2022, https://doi.org/10.5194/gc-5-101-2022, 2022
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This paper outlines educational materials appropriate to teach upper division or graduate-level geoscience students how to produce and interpret high-resolution topography data. In a remote implementation, students were able to independently generate high-resolution topographic data products that can be used for interpreting hazards such as landsliding and flooding. Students met course learning outcomes while learning marketable skills used within environmental jobs or research settings.
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Earth Surf. Dynam., 4, 591–605, https://doi.org/10.5194/esurf-4-591-2016, https://doi.org/10.5194/esurf-4-591-2016, 2016
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Evolution of submarine canyons and hanging-wall fans: insights from geomorphic experiments and morphodynamic models
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Physical modeling of ice-sheet-induced salt movements using the example of northern Germany
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Jingjuan Li, John D. Jansen, Xuanmei Fan, Zhiyong Ding, Shugang Kang, and Marco Lovati
Earth Surf. Dynam., 12, 953–971, https://doi.org/10.5194/esurf-12-953-2024, https://doi.org/10.5194/esurf-12-953-2024, 2024
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In this study, we investigated the geomorphology, sedimentology, and chronology of Tuanjie (seven terraces) and Taiping (three terraces) terraces in Diexi, eastern Tibetan Plateau. Results highlight that two damming and three outburst events occurred in the area during the late Pleistocene, and the outburst floods have been a major factor in the formation of tectonically active mountainous river terraces. Tectonic activity and climatic changes play a minor role.
Andrew Hollyday, Maureen E. Raymo, Jacqueline Austermann, Fred Richards, Mark Hoggard, and Alessio Rovere
Earth Surf. Dynam., 12, 883–905, https://doi.org/10.5194/esurf-12-883-2024, https://doi.org/10.5194/esurf-12-883-2024, 2024
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Sea level was significantly higher during the Pliocene epoch, around 3 million years ago. The present-day elevations of shorelines that formed in the past provide a data constraint on the extent of ice sheet melt and the global sea level response under warm Pliocene conditions. In this study, we identify 10 escarpments that formed from wave-cut erosion during Pliocene times and compare their elevations with model predictions of solid Earth deformation processes to estimate past sea level.
Gregory A. Ruetenik, Ken L. Ferrier, and Odin Marc
Earth Surf. Dynam., 12, 863–881, https://doi.org/10.5194/esurf-12-863-2024, https://doi.org/10.5194/esurf-12-863-2024, 2024
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Fluvial sediment fluxes increased dramatically in Taiwan during Typhoon Morakot in 2009, which produced some of the heaviest landsliding on record. We analyzed fluvial discharge and suspended sediment concentration data at 87 gauging stations across Taiwan to quantify fluvial sediment responses since Morakot. In basins heavily impacted by landsliding, rating curve coefficients sharply increased during Morakot and then declined exponentially with a characteristic decay time of <10 years.
Nil Carrion-Bertran, Albert Falqués, Francesca Ribas, Daniel Calvete, Rinse de Swart, Ruth Durán, Candela Marco-Peretó, Marta Marcos, Angel Amores, Tim Toomey, Àngels Fernández-Mora, and Jorge Guillén
Earth Surf. Dynam., 12, 819–839, https://doi.org/10.5194/esurf-12-819-2024, https://doi.org/10.5194/esurf-12-819-2024, 2024
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The sensitivity to the wave and sea-level forcing sources in predicting a 6-month embayed beach evolution is assessed using two different morphodynamic models. After a successful model calibration using in situ data, other sources are applied. The wave source choice is critical: hindcast data provide wrong results due to an angle bias, whilst the correct dynamics are recovered with the wave conditions from an offshore buoy. The use of different sea-level sources gives no significant differences.
Thomas J. Barnes, Thomas V. Schuler, Simon Filhol, and Karianne S. Lilleøren
Earth Surf. Dynam., 12, 801–818, https://doi.org/10.5194/esurf-12-801-2024, https://doi.org/10.5194/esurf-12-801-2024, 2024
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In this paper, we use machine learning to automatically outline landforms based on their characteristics. We test several methods to identify the most accurate and then proceed to develop the most accurate to improve its accuracy further. We manage to outline landforms with 65 %–75 % accuracy, at a resolution of 10 m, thanks to high-quality/high-resolution elevation data. We find that it is possible to run this method at a country scale to quickly produce landform inventories for future studies.
Eric Petersen, Regine Hock, and Michael G. Loso
Earth Surf. Dynam., 12, 727–745, https://doi.org/10.5194/esurf-12-727-2024, https://doi.org/10.5194/esurf-12-727-2024, 2024
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Daniel O'Hara, Liran Goren, Roos M. J. van Wees, Benjamin Campforts, Pablo Grosse, Pierre Lahitte, Gabor Kereszturi, and Matthieu Kervyn
Earth Surf. Dynam., 12, 709–726, https://doi.org/10.5194/esurf-12-709-2024, https://doi.org/10.5194/esurf-12-709-2024, 2024
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Understanding how volcanic edifices develop drainage basins remains unexplored in landscape evolution. Using digital evolution models of volcanoes with varying ages, we quantify the geometries of their edifices and associated drainage basins through time. We find that these metrics correlate with edifice age and are thus useful indicators of a volcano’s history. We then develop a generalized model for how volcano basins develop and compare our results to basin evolution in other settings.
Brayden Noh, Omar Wani, Kieran B. J. Dunne, and Michael P. Lamb
Earth Surf. Dynam., 12, 691–708, https://doi.org/10.5194/esurf-12-691-2024, https://doi.org/10.5194/esurf-12-691-2024, 2024
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In this paper, we propose a framework for generating risk maps that provide the probabilities of erosion due to river migration. This framework uses concepts from probability theory to learn the river migration model's parameter values from satellite data while taking into account parameter uncertainty. Our analysis shows that such geomorphic risk estimation is more reliable than models that do not explicitly consider various sources of variability and uncertainty.
Steven Y. J. Lai, David Amblas, Aaron Micallef, and Hervé Capart
Earth Surf. Dynam., 12, 621–640, https://doi.org/10.5194/esurf-12-621-2024, https://doi.org/10.5194/esurf-12-621-2024, 2024
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This study explores the creation of submarine canyons and hanging-wall fans on active faults, which can be defined by gravity-dominated breaching and underflow-dominated diffusion processes. The study reveals the self-similarity in canyon–fan long profiles, uncovers Hack’s scaling relationship and proposes a formula to estimate fan volume using canyon length. This is validated by global data from source-to-sink systems, providing insights into deep-water sedimentary processes.
Anuska Narayanan, Sagy Cohen, and John R. Gardner
Earth Surf. Dynam., 12, 581–599, https://doi.org/10.5194/esurf-12-581-2024, https://doi.org/10.5194/esurf-12-581-2024, 2024
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This study investigates the profound impact of deforestation in the Amazon on sediment dynamics. Novel remote sensing data and statistical analyses reveal significant changes, especially in heavily deforested regions, with rapid effects within a year. In less disturbed areas, a 1- to 2-year lag occurs, influenced by natural sediment shifts and human activities. These findings highlight the need to understand the consequences of human activity for our planet's future.
Jacob Hardt, Tim P. Dooley, and Michael R. Hudec
Earth Surf. Dynam., 12, 559–579, https://doi.org/10.5194/esurf-12-559-2024, https://doi.org/10.5194/esurf-12-559-2024, 2024
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We investigate the reaction of salt structures on ice sheet transgressions. We used a series of sandbox models that enabled us to experiment with scaled-down versions of salt bodies from northern Germany. The strongest reactions occurred when large salt pillows were partly covered by the ice load. Subsurface salt structures may play an important role in the energy transition, e.g., as energy storage. Thus, it is important to understand all processes that affect their stability.
Prakash Pokhrel, Mikael Attal, Hugh D. Sinclair, Simon M. Mudd, and Mark Naylor
Earth Surf. Dynam., 12, 515–536, https://doi.org/10.5194/esurf-12-515-2024, https://doi.org/10.5194/esurf-12-515-2024, 2024
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Pebbles become increasingly rounded during downstream transport in rivers due to abrasion. This study quantifies pebble roundness along the length of two Himalayan rivers. We demonstrate that roundness increases with downstream distance and that the rates are dependent on rock type. We apply this to reconstructing travel distances and hence the size of ancient Himalaya. Results show that the ancient river network was larger than the modern one, indicating that there has been river capture.
Jens Martin Turowski, Aaron Bufe, and Stefanie Tofelde
Earth Surf. Dynam., 12, 493–514, https://doi.org/10.5194/esurf-12-493-2024, https://doi.org/10.5194/esurf-12-493-2024, 2024
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Fluvial valleys are ubiquitous landforms, and understanding their formation and evolution affects a wide range of disciplines from archaeology and geology to fish biology. Here, we develop a model to predict the width of fluvial valleys for a wide range of geographic conditions. In the model, fluvial valley width is controlled by the two competing factors of lateral channel mobility and uplift. The model complies with available data and yields a broad range of quantitative predictions.
Daniel J. Ciarletta, Jennifer L. Miselis, Julie C. Bernier, and Arnell S. Forde
Earth Surf. Dynam., 12, 449–475, https://doi.org/10.5194/esurf-12-449-2024, https://doi.org/10.5194/esurf-12-449-2024, 2024
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We reconstructed the evolution of Fire Island, a barrier island in New York, USA, to identify drivers of landscape change. Results reveal Fire Island was once divided into multiple inlet-separated islands with distinct features. Later, inlets closed, and Fire Island’s landscape became more uniform as human activities intensified. The island is now less mobile and less likely to resist and recover from storm impacts and sea level rise. This vulnerability may exist for other stabilized barriers.
Chao Zhou, Xibin Tan, Yiduo Liu, and Feng Shi
Earth Surf. Dynam., 12, 433–448, https://doi.org/10.5194/esurf-12-433-2024, https://doi.org/10.5194/esurf-12-433-2024, 2024
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The drainage-divide stability provides new insights into both the river network evolution and the tectonic and/or climatic changes. Several methods have been proposed to determine the direction of drainage-divide migration. However, how to quantify the migration rate of drainage divides remains challenging. In this paper, we propose a new method to calculate the migration rate of drainage divides from high-resolution topographic data.
Moritz Altmann, Madlene Pfeiffer, Florian Haas, Jakob Rom, Fabian Fleischer, Tobias Heckmann, Livia Piermattei, Michael Wimmer, Lukas Braun, Manuel Stark, Sarah Betz-Nutz, and Michael Becht
Earth Surf. Dynam., 12, 399–431, https://doi.org/10.5194/esurf-12-399-2024, https://doi.org/10.5194/esurf-12-399-2024, 2024
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We show a long-term erosion monitoring of several sections on Little Ice Age lateral moraines with derived sediment yield from historical and current digital elevation modelling (DEM)-based differences. The first study period shows a clearly higher range of variability of sediment yield within the sites than the later periods. In most cases, a decreasing trend of geomorphic activity was observed.
Paul A. Carling
Earth Surf. Dynam., 12, 381–397, https://doi.org/10.5194/esurf-12-381-2024, https://doi.org/10.5194/esurf-12-381-2024, 2024
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Edge rounding in Shap granite glacial erratics is an irregular function of distance from the source outcrop in northern England, UK. Block shape is conservative, evolving according to block fracture mechanics – stochastic and silver ratio models – towards either of two attractor states. Progressive reduction in size occurs for blocks transported at the sole of the ice mass where the blocks are subject to compressive and tensile forces of the ice acting against a bedrock or till surface.
Cho-Hee Lee, Yeong Bae Seong, John Weber, Sangmin Ha, Dong-Eun Kim, and Byung Yong Yu
EGUsphere, https://doi.org/10.5194/egusphere-2024-198, https://doi.org/10.5194/egusphere-2024-198, 2024
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Geomorphic indices were used to understand topographic changes in response to tectonic activity. We applied indices to evaluate the relative tectonic intensity of Ulsan Fault Zone, one of the most active fault zones in Korea. We divided the UFZ into five segments based on spatial variation in intensity. We modelled the landscape evolution of study area and interpreted tectono-geomorphic history that the northern part of the UFZ experienced asymmetric uplift, while the southern part did not.
Johannes Leinauer, Michael Dietze, Sibylle Knapp, Riccardo Scandroglio, Maximilian Jokel, and Michael Krautblatter
EGUsphere, https://doi.org/10.5194/egusphere-2024-231, https://doi.org/10.5194/egusphere-2024-231, 2024
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Massive rock slope failures are a significant alpine hazard and change the earth´s surface. Therefore, we must understand what controls the preparation of such events. By correlating four years of slope displacements with meteorological and seismic data, we found that water from rain and snowmelt is the most important driver. Our approach is applicable to similar sites and indicates, where future climatic changes, e.g. in rain intensity and frequency, may alter the preparation of slope failure.
Gary Parker, Chenge An, Michael P. Lamb, Marcelo H. Garcia, Elizabeth H. Dingle, and Jeremy G. Venditti
Earth Surf. Dynam., 12, 367–380, https://doi.org/10.5194/esurf-12-367-2024, https://doi.org/10.5194/esurf-12-367-2024, 2024
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River morphology has traditionally been divided by the size 2 mm. We use dimensionless arguments to show that particles in the 1–5 mm range (i) are the finest range not easily suspended by alluvial flood flows, (ii) are transported preferentially over coarser gravel, and (iii), within limits, are also transported preferentially over sand. We show how fluid viscosity mediates the special status of sediment in this range.
Lindsay Marie Capito, Enrico Pandrin, Walter Bertoldi, Nicola Surian, and Simone Bizzi
Earth Surf. Dynam., 12, 321–345, https://doi.org/10.5194/esurf-12-321-2024, https://doi.org/10.5194/esurf-12-321-2024, 2024
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We propose that the pattern of erosion and deposition from repeat topographic surveys can be a proxy for path length in gravel-bed rivers. With laboratory and field data, we applied tools from signal processing to quantify this periodicity and used these path length estimates to calculate sediment transport using the morphological method. Our results highlight the potential to expand the use of the morphological method using only remotely sensed data as well as its limitations.
Aaron T. Steelquist, Gustav B. Seixas, Mary L. Gillam, Sourav Saha, Seulgi Moon, and George E. Hilley
EGUsphere, https://doi.org/10.5194/egusphere-2024-71, https://doi.org/10.5194/egusphere-2024-71, 2024
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The rates at which rivers erode their bed can be used to interpret the geologic history of a region. However, these rates depend significantly on the time window over which you measure. We use multiple dating methods to determine an incision rate on the San Juan River and compare it to regional rates with longer timescales. We demonstrate how specific geologic events, such as cutoffs of bedrock meander bends, are likely to preserve material we can date but also bias the rates we measure.
Xuxu Wu, Jonathan Malarkey, Roberto Fernández, Jaco H. Baas, Ellen Pollard, and Daniel R. Parsons
Earth Surf. Dynam., 12, 231–247, https://doi.org/10.5194/esurf-12-231-2024, https://doi.org/10.5194/esurf-12-231-2024, 2024
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The seabed changes from flat to rippled in response to the frictional influence of waves and currents. This experimental study has shown that the speed of this change, the size of ripples that result and even whether ripples appear also depend on the amount of sticky mud present. This new classification on the basis of initial mud content should lead to improvements in models of seabed change in present environments by engineers and the interpretation of past environments by geologists.
Andrea D'Alpaos, Davide Tognin, Laura Tommasini, Luigi D'Alpaos, Andrea Rinaldo, and Luca Carniello
Earth Surf. Dynam., 12, 181–199, https://doi.org/10.5194/esurf-12-181-2024, https://doi.org/10.5194/esurf-12-181-2024, 2024
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Sediment erosion induced by wind waves is one of the main drivers of the morphological evolution of shallow tidal environments. However, a reliable description of erosion events for the long-term morphodynamic modelling of tidal systems is still lacking. By statistically characterizing sediment erosion dynamics in the Venice Lagoon over the last 4 centuries, we set up a novel framework for a synthetic, yet reliable, description of erosion events in tidal systems.
Davide Tognin, Andrea D'Alpaos, Luigi D'Alpaos, Andrea Rinaldo, and Luca Carniello
Earth Surf. Dynam., 12, 201–218, https://doi.org/10.5194/esurf-12-201-2024, https://doi.org/10.5194/esurf-12-201-2024, 2024
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Reliable quantification of sediment transport processes is necessary to understand the fate of shallow tidal environments. Here we present a framework for the description of suspended sediment dynamics to quantify deposition in the long-term modelling of shallow tidal systems. This characterization, together with that of erosion events, allows one to set up synthetic, yet reliable, models for the long-term evolution of tidal landscapes.
Emma L. S. Graf, Hugh D. Sinclair, Mikaël Attal, Boris Gailleton, Basanta Raj Adhikari, and Bishnu Raj Baral
Earth Surf. Dynam., 12, 135–161, https://doi.org/10.5194/esurf-12-135-2024, https://doi.org/10.5194/esurf-12-135-2024, 2024
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Using satellite images, we show that, unlike other examples of earthquake-affected rivers, the rivers of central Nepal experienced little increase in sedimentation following the 2015 Gorkha earthquake. Instead, a catastrophic flood occurred in 2021 that buried towns and agricultural land under up to 10 m of sediment. We show that intense storms remobilised glacial sediment from high elevations causing much a greater impact than flushing of earthquake-induced landslides.
Mohamad Nasr, Adele Johannot, Thomas Geay, Sebastien Zanker, Jules Le Guern, and Alain Recking
Earth Surf. Dynam., 12, 117–134, https://doi.org/10.5194/esurf-12-117-2024, https://doi.org/10.5194/esurf-12-117-2024, 2024
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Hydrophones are used to monitor sediment transport in the river by listening to the acoustic noise generated by particle impacts on the riverbed. However, this acoustic noise is modified by the river flow and can cause misleading information about sediment transport. This article proposes a model that corrects the measured acoustic signal. Testing the model showed that the corrected signal is better correlated with bedload flux in the river.
Jessica Laible, Guillaume Dramais, Jérôme Le Coz, Blaise Calmel, Benoît Camenen, David J. Topping, William Santini, Gilles Pierrefeu, and François Lauters
EGUsphere, https://doi.org/10.5194/egusphere-2023-2348, https://doi.org/10.5194/egusphere-2023-2348, 2024
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Suspended-sand fluxes in rivers vary with time and space, complicating their measurement. The proposed method captures the vertical and lateral variations of suspended-sand concentration throughout a river cross section. It merges water samples taken at various positions throughout the cross section with high-resolution acoustic velocity and discharge measurements. The method also determines the sand flux uncertainty and can be easily applied to other sites using the available open-source code.
Byungho Kang, Rusty A. Feagin, Thomas Huff, and Orencio Durán Vinent
Earth Surf. Dynam., 12, 105–115, https://doi.org/10.5194/esurf-12-105-2024, https://doi.org/10.5194/esurf-12-105-2024, 2024
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We provide a detailed characterization of the frequency, intensity and duration of flooding events at a site along the Texas coast. Our analysis demonstrates the suitability of relatively simple wave run-up models to estimate the frequency and intensity of coastal flooding. Our results validate and expand a probabilistic model of coastal flooding driven by wave run-up that can then be used in coastal risk management in response to sea level rise.
Shunsuke Oya, Fumitoshi Imaizumi, and Shoki Takayama
Earth Surf. Dynam., 12, 67–86, https://doi.org/10.5194/esurf-12-67-2024, https://doi.org/10.5194/esurf-12-67-2024, 2024
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The monitoring of pore water pressure in fully and partly saturated debris flows was performed at Ohya landslide scar, central Japan. The pore water pressure in some partly saturated flows greatly exceeded the hydrostatic pressure. The depth gradient of the pore water pressure in the lower part of the flow was generally higher than the upper part of the flow. We conclude that excess pore water pressure is present in many debris flow surges and is an important mechanism in debris flow behavior.
Gabriele Barile, Marco Redolfi, and Marco Tubino
Earth Surf. Dynam., 12, 87–103, https://doi.org/10.5194/esurf-12-87-2024, https://doi.org/10.5194/esurf-12-87-2024, 2024
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River bifurcations often show the closure of one branch (avulsion), whose causes are still poorly understood. Our model shows that when one branch stops transporting sediments, the other considerably erodes and captures much more flow, resulting in a self-sustaining process. This phenomenon intensifies when increasing the length of the branches, eventually leading to branch closure. This work may help to understand when avulsions occur and thus to design sustainable river restoration projects.
Dieter Rickenmann
Earth Surf. Dynam., 12, 11–34, https://doi.org/10.5194/esurf-12-11-2024, https://doi.org/10.5194/esurf-12-11-2024, 2024
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Field measurements of the bedload flux with a high temporal resolution in a steep mountain stream were used to analyse the transport fluctuations as a function of the flow conditions. The disequilibrium ratio, a proxy for the solid particle concentration in the flow, was found to influence the sediment transport behaviour, and above-average disequilibrium conditions – associated with a larger sediment availability on the streambed – substantially affect subsequent transport conditions.
Byungho Kang, Rusty A. Feagin, Thomas Huff, and Orencio Durán Vinent
Earth Surf. Dynam., 12, 1–10, https://doi.org/10.5194/esurf-12-1-2024, https://doi.org/10.5194/esurf-12-1-2024, 2024
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Coastal flooding can cause significant damage to coastal ecosystems, infrastructure, and communities and is expected to increase in frequency with the acceleration of sea level rise. In order to respond to it, it is crucial to measure and model their frequency and intensity. Here, we show deep-learning techniques can be successfully used to automatically detect flooding events from complex coastal imagery, opening the way to real-time monitoring and data acquisition for model development.
Judith Y. Zomer, Bart Vermeulen, and Antonius J. F. Hoitink
Earth Surf. Dynam., 11, 1283–1298, https://doi.org/10.5194/esurf-11-1283-2023, https://doi.org/10.5194/esurf-11-1283-2023, 2023
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Secondary bedforms that are superimposed on large, primary dunes likely play a large role in fluvial systems. This study demonstrates that they can be omnipresent. Especially during peak flows, they grow large and can have steep slopes, likely affecting flood risk and sediment transport dynamics. Primary dune morphology determines whether they continuously or intermittently migrate. During discharge peaks, the secondary bedforms can become the dominant dune scale.
Matthew C. Morriss, Benjamin Lehmann, Benjamin Campforts, George Brencher, Brianna Rick, Leif S. Anderson, Alexander L. Handwerger, Irina Overeem, and Jeffrey Moore
Earth Surf. Dynam., 11, 1251–1274, https://doi.org/10.5194/esurf-11-1251-2023, https://doi.org/10.5194/esurf-11-1251-2023, 2023
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In this paper, we investigate the 28 June 2022 collapse of the Chaos Canyon landslide in Rocky Mountain National Park, Colorado, USA. We find that the landslide was moving prior to its collapse and took place at peak spring snowmelt; temperature modeling indicates the potential presence of permafrost. We hypothesize that this landslide could be part of the broader landscape evolution changes to alpine terrain caused by a warming climate, leading to thawing alpine permafrost.
Dominic T. Robson and Andreas C. W. Baas
EGUsphere, https://doi.org/10.5194/egusphere-2023-2900, https://doi.org/10.5194/egusphere-2023-2900, 2023
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We present simulations of large populations (swarms) of a type of sand dune known as barchans. Our findings reveal that the rate at which sand moves inside an asymmetric barchan is vital to the behaviour of swarms and that many observed properties of the dunes can be explained by similar rates. We also show that different directions of the wind and the density of dunes added to swarms play important roles in shaping their evolution.
Christopher Tomsett and Julian Leyland
Earth Surf. Dynam., 11, 1223–1249, https://doi.org/10.5194/esurf-11-1223-2023, https://doi.org/10.5194/esurf-11-1223-2023, 2023
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Vegetation influences how rivers change through time, yet the way in which we analyse vegetation is limited. Current methods collect detailed data at the individual plant level or determine dominant vegetation types across larger areas. Herein, we use UAVs to collect detailed vegetation datasets for a 1 km length of river and link vegetation properties to channel evolution occurring within the study site, providing a new method for investigating the influence of vegetation on river systems.
Rabab Yassine, Ludovic Cassan, Hélène Roux, Olivier Frysou, and François Pérès
Earth Surf. Dynam., 11, 1199–1221, https://doi.org/10.5194/esurf-11-1199-2023, https://doi.org/10.5194/esurf-11-1199-2023, 2023
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Predicting river morphology evolution is very complicated, especially for mountain rivers with complex morphologies such as the Lac des Gaves reach in France. A 2D hydromorphological model was developed to reproduce the channel's evolution and provide reliable volumetric predictions while revealing the challenge of choosing adapted sediment transport and friction laws. Our model can provide decision-makers with reliable predictions to design suitable restoration measures for this reach.
Daisuke Harada and Shinji Egashira
Earth Surf. Dynam., 11, 1183–1197, https://doi.org/10.5194/esurf-11-1183-2023, https://doi.org/10.5194/esurf-11-1183-2023, 2023
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This paper proposes a method for describing large-wood behavior in terms of the convection equation and the storage equation, which are associated with active sediment erosion and deposition. Compared to the existing Lagrangian method, the proposed method can easily simulate the behavior of large wood in the flow field with active sediment transport. The method is applied to the flood disaster in the Akatani River in 2017, and the 2-D flood flow computations are successfully performed.
Hemanti Sharma and Todd A. Ehlers
Earth Surf. Dynam., 11, 1161–1181, https://doi.org/10.5194/esurf-11-1161-2023, https://doi.org/10.5194/esurf-11-1161-2023, 2023
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Seasonality in precipitation (P) and vegetation (V) influences catchment erosion (E), although which factor plays the dominant role is unclear. In this study, we performed a sensitivity analysis of E to P–V seasonality through numerical modeling. Our results suggest that P variations strongly influence seasonal variations in E, while the effect of seasonal V variations is secondary but significant. This is more pronounced in moderate and least pronounced in extreme environmental settings.
Eduardo Gomez-de la Peña, Giovanni Coco, Colin Whittaker, and Jennifer Montaño
Earth Surf. Dynam., 11, 1145–1160, https://doi.org/10.5194/esurf-11-1145-2023, https://doi.org/10.5194/esurf-11-1145-2023, 2023
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Predicting how shorelines change over time is a major challenge in coastal research. We here have turned to deep learning (DL), a data-driven modelling approach, to predict the movement of shorelines using observations from a camera system in New Zealand. The DL models here implemented succeeded in capturing the variability and distribution of the observed shoreline data. Overall, these findings indicate that DL has the potential to enhance the accuracy of current shoreline change predictions.
Christoph Rettinger, Mina Tabesh, Ulrich Rüde, Stefan Vollmer, and Roy M. Frings
Earth Surf. Dynam., 11, 1097–1115, https://doi.org/10.5194/esurf-11-1097-2023, https://doi.org/10.5194/esurf-11-1097-2023, 2023
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Packing models promise efficient and accurate porosity predictions of fluvial sediment deposits. In this study, three packing models were reviewed, calibrated, and validated. Only two of the models were able to handle the continuous and large grain size distributions typically encountered in rivers. We showed that an extension by a cohesion model is necessary and developed guidelines for successful predictions in different rivers.
Alexander A. Ermilov, Gergely Benkő, and Sándor Baranya
Earth Surf. Dynam., 11, 1061–1095, https://doi.org/10.5194/esurf-11-1061-2023, https://doi.org/10.5194/esurf-11-1061-2023, 2023
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A novel, artificial-intelligence-based riverbed sediment analysis methodology is introduced that uses underwater images to identify the characteristic sediment classes. The main novelties of the procedure are as follows: underwater images are used, the method enables continuous mapping of the riverbed along the measurement vessel’s route contrary to conventional techniques, the method is cost-efficient, and the method works without scaling.
Kelly M. Sanks, John B. Shaw, Samuel M. Zapp, José Silvestre, Ripul Dutt, and Kyle M. Straub
Earth Surf. Dynam., 11, 1035–1060, https://doi.org/10.5194/esurf-11-1035-2023, https://doi.org/10.5194/esurf-11-1035-2023, 2023
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River deltas encompass many depositional environments (like channels and wetlands) that interact to produce coastal environments that change through time. The processes leading to sedimentation in wetlands are often neglected from physical delta models. We show that wetland sedimentation constrains flow to the channels, changes sedimentation rates, and produces channels more akin to field-scale deltas. These results have implications for the management of these vulnerable coastal landscapes.
Katharina Wetterauer and Dirk Scherler
Earth Surf. Dynam., 11, 1013–1033, https://doi.org/10.5194/esurf-11-1013-2023, https://doi.org/10.5194/esurf-11-1013-2023, 2023
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In glacial landscapes, debris supply rates vary spatially and temporally. Rockwall erosion rates derived from cosmogenic 10Be concentrations in medial moraine debris at five Swiss glaciers around Pigne d'Arolla indicate an increase in erosion from the end of the Little Ice Age towards deglaciation but temporally more stable rates over the last ∼100 years. Rockwall erosion rates are higher where rockwalls are steep and north-facing, suggesting a potential slope and temperature control.
Sam Anderson, Nicole Gasparini, and Joel Johnson
Earth Surf. Dynam., 11, 995–1011, https://doi.org/10.5194/esurf-11-995-2023, https://doi.org/10.5194/esurf-11-995-2023, 2023
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We measured rock strength and amount of fracturing in the two different rock types, sandstones and carbonates, in Last Chance Canyon, New Mexico, USA. Where there is more carbonate bedrock, hills and channels steepen in Last Chance Canyon. This is because the carbonate-type bedrock tends to be more thickly bedded, is less fractured, and is stronger. The carbonate bedrock produces larger boulders than the sandstone bedrock, which can protect the more fractured sandstone bedrock from erosion.
Jens M. Turowski, Gunnar Pruß, Anne Voigtländer, Andreas Ludwig, Angela Landgraf, Florian Kober, and Audrey Bonnelye
Earth Surf. Dynam., 11, 979–994, https://doi.org/10.5194/esurf-11-979-2023, https://doi.org/10.5194/esurf-11-979-2023, 2023
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Rivers can cut into rocks, and their strength modulates the river's erosion rates. Yet, which properties of the rock control its response to erosive action is poorly understood. Here, we describe parallel experiments to measure rock erosion rates under fluvial impact erosion and the rock's geotechnical properties such as fracture strength, elasticity, and density. Erosion rates vary over a factor of a million between different rock types. We use the data to improve current theory.
Koji Ohata, Hajime Naruse, and Norihiro Izumi
Earth Surf. Dynam., 11, 961–977, https://doi.org/10.5194/esurf-11-961-2023, https://doi.org/10.5194/esurf-11-961-2023, 2023
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We investigated the influence of sediment transport modes on the formation of bedforms using theoretical analysis. The results of the theoretical analysis were verified with published data of plane beds obtained by fieldwork and laboratory experiments. We found that suspended sand particles can promote the formation of plane beds on a fine-grained bed, which suggests that the presence of suspended particles suppresses the development of dunes under submarine sediment-laden gravity currents.
Matan Ben-Asher, Florence Magnin, Sebastian Westermann, Josué Bock, Emmanuel Malet, Johan Berthet, Ludovic Ravanel, and Philip Deline
Earth Surf. Dynam., 11, 899–915, https://doi.org/10.5194/esurf-11-899-2023, https://doi.org/10.5194/esurf-11-899-2023, 2023
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Quantitative knowledge of water availability on high mountain rock slopes is very limited. We use a numerical model and field measurements to estimate the water balance at a steep rock wall site. We show that snowmelt is the main source of water at elevations >3600 m and that snowpack hydrology and sublimation are key factors. The new information presented here can be used to improve the understanding of thermal, hydrogeological, and mechanical processes on steep mountain rock slopes.
Jessica Droujko, Srividya Hariharan Sudha, Gabriel Singer, and Peter Molnar
Earth Surf. Dynam., 11, 881–897, https://doi.org/10.5194/esurf-11-881-2023, https://doi.org/10.5194/esurf-11-881-2023, 2023
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We combined data from satellite images with data measured from a kayak in order to understand the propagation of fine sediment in the Vjosa River. We were able to find some storm-activated and some permanent sources of sediment. We also estimated how much fine sediment is carried into the Adriatic Sea by the Vjosa River: approximately 2.5 Mt per year, which matches previous findings. With our work, we hope to show the potential of open-access satellite images.
Cited articles
Aberle, J. and Järvelä, J.: Flow resistance of emergent rigid and
flexible floodplain vegetation, J. Hydraul. Res., 51, 33–45,
https://doi.org/10.1080/00221686.2012.754795, 2013.
Abu-Aly, T. R., Pasternack, G. B., Wyrick, J. R., Barker, R., Massa, D., and
Johnson, T.: Effects of LiDAR-derived, spatially distributed vegetation
roughness on two-dimensional hydraulics in a gravel-cobble river at flows of
0.2 to 20 times bankfull, Geomorphology, 206, 468–482,
https://doi.org/10.1016/j.geomorph.2013.10.017, 2014.
Allmendinger, N. E., Pizzuto, J. E., Potter, N., Johnson, T. E., and Hession,
W. C.: The influence of riparian vegetation on stream width, eastern
Pennsylvania, USA, Geol. Soc. Am. Bull., 117, 229–243,
https://doi.org/10.1130/B25447.1, 2005.
Amlin, N. M. and Rood, S. B.: Comparative tolerances of riparian willows and
cottonwoods to water-table decline, Wetlands, 22, 338–346, 2002.
Antonarakis, A. S., Richards, K. S., Brasington, J., and Muller, E.:
Determining leaf area index and leafy tree roughness using terrestrial laser
scanning, Water Resour. Res., 46, W06510, https://doi.org/10.1029/2009WR008318, 2010.
Asahi, K., Shimizu, Y., Nelson, J., and Parker, G.: Numerical simulation of
river meandering with self-evolving banks, J. Geophys. Res.-Earth,
118, 1–22, https://doi.org/10.1002/jgrf.20150, 2013.
Baptist, M., Bosch, L., van den Dijkstra, J. T., and Kapinga, S.: Modelling
the effects of vegetation on flow and morphology in rivers, in Large Rivers, Arch. Hydrobiol.,
15, 339–357, 2005.
Baptist, M., Babovic, V., Rodríguez, J., Keijzer, M., Uittenbogaard,
R., Mynett, A., and Verwey, A.: On inducing equations for vegetation
resistance, J. Hydraul. Res., 45, 435–450, 2007.
Bendix, J. and Hupp, C.: Hydrological and geomorphological impacts on
riparian plant communities, Hydrol. Process., 14, 2977–2990, 2000.
Bennett, S. J., Pirim, T., and Barkdoll, B. D.: Using simulated emergent
vegetation to alter stream flow direction within a straight experimental
channel, Geomorphology, 44, 115–126, 2002.
Bertoldi, W. and Siviglia, A.: Modeling vegetation controls on fluvial
morphological trajectories, Geophys. Res. Lett., 41, 1–9,
https://doi.org/10.1002/2014GL061666, 2014.
Blanckaert, K.: Topographic steering, flow recirculation, velocity
redistribution, and bed topography in sharp meander bends, Water Resour.
Res., 46, 1–23, https://doi.org/10.1029/2009WR008303, 2010.
Blondeaux, P. and Seminara, G.: A unified bar-bend theory of river meanders,
J. Fluid Mech., 157, 449–470, 1985.
Boothroyd, R. J., Hardy, R. J., Warburton, J., and Marjoribanks, T. I.: The
importance of accurately representing submerged vegetation morphology in the
numerical prediction of complex river flow, Earth Surf. Process. Landforms,
41, 567–576, https://doi.org/10.1002/esp.3871, 2016.
Boothroyd, R. J., Hardy, R. J., Warburton, J., and Marjoribanks, T. I.:
Modeling complex flow structures and drag around a submerged plant of varied
posture, Water Resour. Res., 53, 2877–2901, https://doi.org/10.1002/2016WR020186, 2017.
Boyd, K., Thatcher, T., and Kellogg, W.: Musselshell River Watershed Plan,
Musselshell Watershed Coalition, 131 pp., 2015.
Braudrick, C. A., Dietrich, W. E., Leverich, G. T., and Sklar, L. S.:
Experimental evidence for the conditions necessary to sustain meandering in
coarse-bedded rivers, P. Natl. Acad. Sci. USA, 106, 16936–16941,
https://doi.org/10.1073/pnas.0909417106, 2009.
Bywater-Reyes, S., Wilcox, A. C., Stella, J. C., and Lightbody, A. F.: Flow
and scour constraints on uprooting of pioneer woody seedlings, Water Resour.
Res., 51, 9190–9206, https://doi.org/10.1002/2014WR016641, 2015.
Bywater-Reyes, S., Wilcox, A. C., and Diehl, R. M.: Multiscale influence of
woody riparian vegetation on fluvial topography quantified with ground-based
and airborne lidar, J. Geophys. Res.-Earth, 122, 1218–1235,
https://doi.org/10.1002/2016JF004058, 2017.
Bywater-Reyes, S., Diehl, R. M., and Wilcox, A. C.: The Influence of a
Vegetated Bar on Channel-Bend Flow Dynamics – Data Set #1, in Earth Surface
Dynamics Data Sets, University of Northern Colorado, available at:
https://digscholarship.unco.edu/esd_data_2018/1, last access: 8 June
2018.
Camporeale, C., Perucca, E., Ridolfi, L., and Gurnell, A.: Modeling the
interactions between river morphodynamics and riparian vegetation, Rev.
Geophys., 51, 1–36, https://doi.org/10.1002/rog.20014, 2013.
Constantine, J. A., McLean, S. R., and Dunne, T.: A mechanism of chute cutoff
along large meandering rivers with uniform floodplain topography, Geol. Soc.
Am. Bull., 122, 855–869, https://doi.org/10.1130/B26560.1, 2010.
Corenblit, D., Tabacchi, E., Steiger, J., and Gurnell, A. M.: Reciprocal
interactions and adjustments between fluvial landforms and vegetation
dynamics in river corridors: A review of complementary approaches,
Earth-Sci. Rev., 84, 56–86, https://doi.org/10.1016/j.earscirev.2007.05.004, 2007.
Corenblit, D., Davies, N. S., Steiger, J., Gibling, M. R., and Bornette, G.:
Considering river structure and stability in the light of evolution:
feedbacks between riparian vegetation and hydrogeomorphology, Earth Surf.
Process. Landforms, 40, 189–207, https://doi.org/10.1002/esp.3643,
2015a.
Corenblit, D., Baas, A., Balke, T., Bouma, T., Fromard, F.,
Garófano-Gómez, V., González, E., Gurnell, A. M.,
Hortobágyi, B., Julien, F., Kim, D., Lambs, L., Stallins, J. A.,
Steiger, J., Tabacchi, E., and Walcker, R.: Engineer pioneer plants respond
to and affect geomorphic constraints similarly along water-terrestrial
interfaces world-wide, Glob. Ecol. Biogeogr., 1–14, https://doi.org/10.1111/geb.12373,
2015b.
Curran, J. C. and Hession, W. C.: Vegetative impacts on hydraulics and
sediment processes across the fluvial system, J. Hydrol., 505, 364–376,
https://doi.org/10.1016/j.jhydrol.2013.10.013, 2013.
Dean, D. J. and Schmidt, J. C.: The role of feedback mechanisms in historic
channel changes of the lower Rio Grande in the Big Bend region,
Geomorphology, 126, 333–349, https://doi.org/10.1016/j.geomorph.2010.03.009, 2011.
Diehl, R. M., Merritt, D. M., Wilcox, A. C., and Scott, M. L.: Applying
functional traits to ecogeomorphic processes in riparian ecosystems,
Bioscience, 67, 729–743, https://doi.org/10.1093/biosci/bix080, 2017a.
Diehl, R. M., Wilcox, A. C., Stella, J. C., Kui, L., Sklar, L. S., and
Lightbody, A.: Fluvial sediment supply and pioneer woody seedlings as a
control on bar-surface topography, Earth Surf. Process. Landforms, 42,
724–734, https://doi.org/10.1002/esp.4017, 2017b.
Dietrich, W. E. and Perron, J. T.: The search for a topographic signature of
life, Nature, 439, 411–418, https://doi.org/10.1038/nature04452, 2006.
Dietrich, W. E. and Smith, J. D.: Influence of the point bar on flow through
curved channels, Water Resour. Res., 19, 1173–1192, 1983.
Dietrich, W. E. and Whiting, P.: Boundary shear stress and sediment
transport in river meanders of sand and gravel, in: River Meandering, AGU
Water Resources Monograph 12, edited by: Ikeda, S. and Parker, G., 1–50,
American Geophysical Union, Washington, DC, 1989.
Eke, E., Parker, G., and Shimizu, Y.: Numerical modeling of erosional and
depositional bank processes in migrating river bends with self-formed width:
Morphodynamics of bar push and bank pull, J. Geophys. Res.-Earth, 119,
1455–1483, https://doi.org/10.1002/2013JF003020, 2014.
Gorrick, S. and Rodríguez, J. F.: Sediment dynamics in a sand bed
stream with riparian vegetation, Water Resour. Res., 48, 1–15,
https://doi.org/10.1029/2011WR011030, 2012.
Gran, K. and Paola, C.: Riparian vegetation controls on braided stream
dynamics, Water Resour. Res., 37, 3275–3283, 2001.
Green, J. C.: Modelling flow resistance in vegetated streams: Review and
development of new theory, Hydrol. Process., 19, 1245–1259,
https://doi.org/10.1002/hyp.5564, 2005.
Gurnell, A.: Plants as river system engineers, Earth Surf. Process.
Landforms, 39, 4–25, https://doi.org/10.1002/esp.3397, 2014.
Gurnell, A. and Petts, G.: Trees as riparian engineers: the Tagliamento
River, Italy, Earth Surf. Process. Landforms, 31, 1558–1574,
https://doi.org/10.1002/esp.1342, 2006.
Gurnell, A. M., Petts, G. E., Hannah, D. M., Smith, B. P. G., Edwards, P.
J., Kollmann, J., Ward, J. V., and Tockner, K.: Riparian vegetation and
island formation along the gravel-bed Fiume Tagliamento, Italy, Earth Surf.
Process. Landforms, 26, 31–62,
https://doi.org/10.1002/1096-9837(200101)26:1< 31::AID-ESP155>3.0.CO;2-Y, 2001.
Ikeda, S., Parker, G., and Sawai, K.: Bend theory of river meanders. Part 1.
Linear development, J. Fluid Mech., 112, 363–377,
https://doi.org/10.1017/S0022112081000451, 1981.
Iwasaki, T., Shimizu, Y., and Kimura, I.: Numerical simulation of bar and
bank erosion in a vegetated floodplain: A case study in the Otofuke River,
Adv. Water Resour., 93, 118–134, https://doi.org/10.1016/j.advwatres.2015.02.001, 2015.
Jalonen, J., Järvelä, J., and Aberle, J.: Leaf area index as
vegetation density measure for hydraulic analyses, J. Hydraul. Eng., 139,
461–469, https://doi.org/10.1061/(ASCE)HY.1943-7900.0000700, 2013.
James, C., Birkhead, A., and Jordanova, A.: Flow resistance of emergent
vegetation, J. Hydraul. Res., 42, 37–41, 2004.
Karrenberg, S., Edwards, P., and Kollmann, J.: The life history of Salicaceae
living in the active zone of floodplains, Freshw. Biol., 47, 733–748,
2002.
Kleinhans, M. G. and van den Berg, J. H.: River channel and bar patterns
explained and predicted by an empirical and a physics-based method, Earth
Surf. Process. Landforms, 36, 721–738, https://doi.org/10.1002/esp.2090, 2011.
Kui, L., Stella, J., Lightbody, A., and Wilcox, A. C.: Ecogeomorphic
feedbacks and flood loss of riparian tree seedlings in meandering channel
experiments, Water Resour. Res., 50, 9366–9384, https://doi.org/10.1002/2014WR015719,
2014.
Legleiter, C. J., Harrison, L. R., and Dunne, T.: Effect of point bar
development on the local force balance governing flow in a simple,
meandering gravel bed river, J. Geophys. Res., 116, F01005,
https://doi.org/10.1029/2010JF001838, 2011.
Lightbody, A., Skorko, K., Kui, L., Stella, J., and Wilcox, A.: Hydraulic
and topographic response of sand-bed rivers to woody riparian seedlings:
field-scale laboratory methods and results, 2012 Fall Meeting, AGU, San
Fransisco, CA, USA, 3–7 December, 2012.
Manners, R., Schmidt, J., and Wheaton, J. M.: Multiscalar model for the
determination of spatially explicit riparian vegetation roughness, J.
Geophys. Res.-Earth, 118, 65–83, https://doi.org/10.1029/2011JF002188, 2013.
Manners, R. B., Wilcox, A. C., Kui, L., Lightbody, A. F., Stella, J. C., and
Sklar, L. S.: When do plants modify fluvial processes? Plant-hydraulic
interactions under variable flow and sediment supply rates, J. Geophys. Res.-Earth,
120, 325–345, https://doi.org/10.1002/2014JF003265, 2015.
Marjoribanks, T. I., Hardy, R. J., Lane, S. N., and Tancock, M. J.:
Patch-scale representation of vegetation within hydraulic models, Earth
Surf. Process. Landforms, 42, 699–710, https://doi.org/10.1002/esp.4015, 2017.
Mueller, E. R. and Pitlick, J.: Sediment supply and channel morphology in
mountain river systems: 2. Single thread to braided transitions, J. Geophys.
Res.-Earth, 119, 1516–1541, https://doi.org/10.1002/2013JF003045, 2014.
Murray, A. B. and Paola, C.: Modelling the effect of vegetation on channel
pattern in bedload rivers, Earth Surf. Process. Landforms, 28, 131–143,
https://doi.org/10.1002/esp.428, 2003.
Nelson, J. M.: iRIC Software: FaSTMECH solver manual, USGS, 1–36, 2013.
Nelson, J. M. and Smith, J. D.: Flow in meandering channels with natural
topography, in River Meandering, Water Resour. Monogr., vol. 12, edited by:
Ikeda, S. and Parker, G., AGU, Washington, DC, 69–102, 1989.
Nelson, J. M., Bennett, J. P., and Wiele, S. M.: Flow and sediment-transport
modeling, in Tools in Fluvial Geomorphology, edited by: Kondolf, G. M. and
Piégay, H., Wiley, Chichester, 539–576, 2003.
Nelson, J. M., Shimizu, Y., Abe, T., Asahi, K., Gamou, M., Inoue, T.,
Iwasaki, T., Kakinuma, T., Kawamura, S., Kimura, I., Kyuka, T., McDonald, R.
R., Nabi, M., Nakatsugawa, M., Simões, F. R., Takebayashi, H., and
Watanabe, Y.: The international river interface cooperative: Public domain
flow and morphodynamics software for education and applications, Adv. Water
Resour., 93, 62–74, https://doi.org/10.1016/j.advwatres.2015.09.017, 2016.
Nepf, H. M.: Drag, turbulence, and diffusion in flow through emergent
vegetation, Water Resour. Res., 35, 479–489, https://doi.org/10.1029/1998WR900069,
1999.
Nepf, H. M.: Hydrodynamics of vegetated channels, J. Hydraul. Res., 503,
262–279, https://doi.org/10.1080/00221686.2012.696559, 2012.
Nepf, H. M., Rominger, J., and Zong, L.: Coherent flow structures in vegetated
channels, in Coherent Flow Structures at Earth's Surface, edited by:
Venditti, J. G., Best, J. L., Church, M., and Hardy, R. J.,
Wiley-Blackwell, 135–147, 2013.
Nicholas, A. P., Ashworth, P. J., Sambrook Smith, G. H., and Sandbach, S. D.:
Numerical simulation of bar and island morphodynamics in anabranching
megarivers, J. Geophys. Res.-Earth, 118, 1–26,
https://doi.org/10.1002/jgrf.20132, 2013.
Osterkamp, W. R. and Hupp, C. R.: Fluvial processes and vegetation –
Glimpses of the past, the present, and perhaps the future, Geomorphology,
116, 274–285, https://doi.org/10.1016/j.geomorph.2009.11.018, 2010.
Osterkamp, W. R., Hupp, C. R., and Stoffel, M.: The interactions between
vegetation and erosion: New directions for research at the interface of
ecology and geomorphology, Earth Surf. Process. Landforms, 37, 23–36,
https://doi.org/10.1002/esp.2173, 2012.
Parker, G., Shimizu, Y., Wilkerson, G. V., Eke, E. C., Abad, J. D., Lauer,
J. W., Paola, C., Dietrich, W. E., and Voller, V. R.: A new framework for
modeling the migration of meandering rivers, Earth Surf. Process. Landforms,
36, 70–86, https://doi.org/10.1002/esp.2113, 2011.
Pasternack, G. B.: 2D modeling and ecohydraulic analysis, University of
California, Davis, CA, 168 pp., 2011.
Rominger, J. T., Lightbody, A. F., Nepf, H.: Effects of added vegetation on
sand bar stability and stream hydrodynamics, J. Hydraul. Eng., 136,
994–1002, https://doi.org/10.1061/(ASCE)HY.1943-7900.0000215, 2010.
Rood, S. B., Kalischuk, A. R., and Mahoney, J. M.: Initial cottonwood
seedling recruitment following the flood of the century of the Oldman River,
Alberta, Canada, Wetlands, 18, 557–570, 1998.
Schnauder, I. and Moggridge, H. L.: Vegetation and hydraulic-morphological
interactions at the individual plant, patch and channel scale, Aquat. Sci.,
71, 318–330, https://doi.org/10.1007/s00027-009-9202-6, 2009.
Segura, C. and Pitlick, J.: Coupling fluvial-hydraulic models to predict
gravel transport in spatially variable flows, J. Geophys. Res.-Earth,
120, 834–855, https://doi.org/10.1002/2014JF003302, 2015.
Straatsma, M. W., Warmink, J. J., and Middelkoop, H.: Two novel methods for
field measurements of hydrodynamic density of floodplain vegetation using
terrestrial laser scanning and digital parallel photography, Int. J. Remote
Sens., 29, 1595–1617, https://doi.org/10.1080/01431160701736455, 2008.
Termini, D.: Experimental analysis of the effect of vegetation on flow and
bed shear stress distribution in high-curvature bends, Geomorphology, 274,
1–10, https://doi.org/10.1016/j.geomorph.2016.08.031, 2016.
Thorne, S. D. and Furbish, D. J.: Influences of coarse bank roughness on
flow within a sharply curved river bend, Geomorphology, 12, 241–257,
https://doi.org/10.1016/0169-555X(95)00007-R, 1995.
Tonina, D. and Jorde, K.: Hydraulic modeling approaches for ecohydraulic
studies: 3D , 2D , 1D and non-numerical models, in: Ecohydraulics: An
Integrated Approach, John Wiley & Sons, Ltd, 31–74, 2013.
Tooth, S. and Nanson, G. C.: The role of vegetation in the formation of
anabranching channels in an ephemeral river, Northern plains, arid central
Australia, Hydrol. Process., 14, 3099–3117, 2000.
Tooth, S., Jansen, J. D., Nanson, G. C., Coulthard, T. J., and Pietsch, T.:
Riparian vegetation and the late Holocene development of an anabranching
river: Magela Creek, northern Australia, Geol. Soc. Am. Bull., 120,
1021–1035, https://doi.org/10.1130/B26165.1, 2008.
van de Lageweg, W. I., van Dijk, W. M., Baar, A. W., Rutten, J., and
Kleinhans, M. G.: Bank pull or bar push: What drives scroll-bar formation in
meandering rivers?, Geology, 42, 319–322, https://doi.org/10.1130/G35192.1, 2014.
Van Dijk, W. M., Teske, R., Van De Lageweg, W. I., and Kleinhans, M. G.:
Effects of vegetation distribution on experimental river channel dynamics,
Water Resour. Res., 49, 7558–7574, https://doi.org/10.1002/2013WR013574, 2013.
van Dijk, W. M., Schuurman, F., van de Lageweg, W. I., and Kleinhans, M. G.:
Bifurcation instability and chute cutoff development in meandering
gravel-bed rivers, Geomorphology, 213, 277–291,
https://doi.org/10.1016/j.geomorph.2014.01.018, 2014.
van Oorschot, M., Kleinhans, M., Geerling, G., and Middelkoop, H.: Distinct
patterns of interaction between vegetation and morphodynamics, Earth Surf.
Process. Landforms, 41, 791–808, https://doi.org/10.1002/esp.3864, 2016.
Vargas-Luna, A., Crosato, A., and Uijttewaal, W. S. J.: Effects of vegetation
on flow and sediment transport: Comparative analyses and validation of
predicting models, Earth Surf. Process. Landforms, 40, 157–176,
https://doi.org/10.1002/esp.3633, 2015.
Vargas-Luna, A., Crosato, A., Calvani, G., and Uijttewaal, W. S. J.:
Representing plants as rigid cylinders in experiments and models, Adv. Water
Resour., 93, 205–222, https://doi.org/10.1016/j.advwatres.2015.10.004, 2016.
Västilä, K. and Järvelä, J.: Modeling the flow resistance of
woody vegetation using physically-based properties of the foliage and stem,
Water Resour. Res., 50, 1–17, https://doi.org/10.1002/2013WR013819, 2014.
Västilä, K., Järvelä, J., and Aberle, J.: Characteristic
reference areas for estimating flow resistance of natural foliated
vegetation, J. Hydrol., 492, 49–60, https://doi.org/10.1016/j.jhydrol.2013.04.015,
2013.
Wang, C., Wang, Q., Meire, D., Ma, W., Wu, C., Meng, Z., Van de Koppel, J.,
Troch, P., Verhoeven, R., De Mulder, T., and Temmerman, S.: Biogeomorphic
feedback between plant growth and flooding causes alternative stable states
in an experimental floodplain, Adv. Water Resour., 93, 223–235,
https://doi.org/10.1016/j.advwatres.2015.07.003, 2016.
Whiting, P. J.: The effect of stage on flow and components of the local force
balance, Earth Surf. Process. Landforms, 22, 517–530,
https://doi.org/10.1002/(SICI)1096-9837(199706)22:6<517::AID-ESP707>3.0.CO;2-M, 1997.
Whittaker, P., Wilson, C., Aberle, J., Rauch, H. P., and Xavier, P.: A drag
force model to incorporate the reconfiguration of full-scale riparian trees
under hydrodynamic loading, J. Hydraul. Res., 51, 569–580,
https://doi.org/10.1080/00221686.2013.822936, 2013.
Wilcox, A. C.: U-026 – Riparian Vegetation Feedbacks, UNAVCO, available at:
https://tls.unavco.org/projects/U-026/ (last access: 8 June 2018),
2013.
Wilcox, A. C. and Shafroth, P. B.: Coupled hydrogeomorphic and
woody-seedling responses to controlled flood releases in a dryland river,
Water Resour. Res., 49, 2843–2860, https://doi.org/10.1002/wrcr.20256, 2013.
Wintenberger, C. L., Rodrigues, S., Bréhéret, J.-G., and Villar, M.:
Fluvial islands: First stage of development from nonmigrating (forced) bars
and woody-vegetation interactions, Geomorphology, 246, 305–320,
https://doi.org/10.1016/j.geomorph.2015.06.026, 2015.
Yager, E. M. and Schmeeckle, M. W.: The influence of vegetation on
turbulence and bed load transport, J. Geophys. Res.-Earth, 118,
1585–1601, https://doi.org/10.1002/jgrf.20085, 2013.
Short summary
Channel bends and bars make up an important physical and ecological unit within rivers. Many riparian vegetation species need river bars for their life cycle, colonizing bars after flooding events. Once vegetation is established on bars, they can alter the flow and patterns of erosion and deposition. We used a hydraulic model to quantify the impact such riparian vegetation of various sizes and densities has on flow dynamics and inferred the expected changes in river erosion and deposition.
Channel bends and bars make up an important physical and ecological unit within rivers. Many...
