Articles | Volume 8, issue 2
https://doi.org/10.5194/esurf-8-485-2020
© Author(s) 2020. 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-8-485-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
03 Jun 2020
Research article |
| 03 Jun 2020
| 03 Jun 2020
Entrainment and suspension of sand and gravel
Jan de Leeuw
Division of Geological and Planetary Sciences, California Institute
of Technology, Pasadena, CA 91125, USA
Michael P. Lamb
CORRESPONDING AUTHOR
Division of Geological and Planetary Sciences, California Institute
of Technology, Pasadena, CA 91125, USA
Gary Parker
Ven Te Chow Hydrosystems Laboratory, Department of Civil and
Environmental Engineering, University of Illinois at Urbana-Champaign,
Champaign, IL 61801, USA
Department of Geology, University of Illinois at Urbana-Champaign,
Champaign, IL 61801, USA
Andrew J. Moodie
Department of Earth, Environmental and Planetary Sciences, Rice
University, Houston, TX 77005, USA
Daniel Haught
Department of Geography, Simon Fraser University, Burnaby, British
Columbia, Canada
Jeremy G. Venditti
Department of Geography, Simon Fraser University, Burnaby, British
Columbia, Canada
School of Environmental Science, Simon Fraser University, Burnaby,
British Columbia, Canada
Jeffrey A. Nittrouer
Department of Earth, Environmental and Planetary Sciences, Rice
University, Houston, TX 77005, USA
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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.
Roberto Fernández and Gary Parker
Earth Surf. Dynam., 9, 253–269, https://doi.org/10.5194/esurf-9-253-2021, https://doi.org/10.5194/esurf-9-253-2021, 2021
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We present a set of observations from laboratory experiments on meltwater meandering rivulets on ice and compare them (qualitatively and quantitatively) to patterns commonly found in meandering channels flowing over different materials. Our channels display great similarities with real rivers in spite of being much smaller. Higher temperature differences between water and ice create deeper and less sinuous channels with bends that preferentially point downstream and are not as rounded.
Roberto Fernández, Gary Parker, and Colin P. Stark
Earth Surf. Dynam., 7, 949–968, https://doi.org/10.5194/esurf-7-949-2019, https://doi.org/10.5194/esurf-7-949-2019, 2019
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This paper describes the case of a meandering bedrock river with loose sediment on the bed. In such rivers, the sediment hits and erodes the bed as it moves with the flow. We did experiments in a laboratory flume to identify the areas where the sediment moves and those where it deposits. We discovered that the size and location of those areas change with the amount of sediment in the channel and its curvature. The fluctuations of sediment cover over the bed drive the erosion potential.
Sheng Ye, Qihua Ran, Xudong Fu, Chunhong Hu, Guangqian Wang, Gary Parker, Xiuxiu Chen, and Siwei Zhang
Hydrol. Earth Syst. Sci., 23, 549–556, https://doi.org/10.5194/hess-23-549-2019, https://doi.org/10.5194/hess-23-549-2019, 2019
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Our study shows that there is declining coupling between sediment concentration and discharge from daily to annual scales for gauges across the Yellow River basin (YRB). Not only the coupling, but also the magnitude of sediment response to discharge variation decreases with long-term mean discharge. This emergent stationarity can be related to sediment retardation by vegetation, suggesting the shift of dominance from water to vegetation as mean annual discharge increases.
Chenge An, Andrew J. Moodie, Hongbo Ma, Xudong Fu, Yuanfeng Zhang, Kensuke Naito, and Gary Parker
Earth Surf. Dynam., 6, 989–1010, https://doi.org/10.5194/esurf-6-989-2018, https://doi.org/10.5194/esurf-6-989-2018, 2018
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In most models of river morphodynamics, sediment mass conservation is described by the Exner equation, which may take either the flux form or the entrainment form. Here we compare the two forms of the Exner equation under conditions typical of the lower Yellow River. We find that when using a single sediment grain size, there is little difference between the two forms. But when considering sediment mixtures, the two forms will show very different patterns of grain sorting.
Jeffrey S. Kwang and Gary Parker
Earth Surf. Dynam., 5, 807–820, https://doi.org/10.5194/esurf-5-807-2017, https://doi.org/10.5194/esurf-5-807-2017, 2017
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A prevalent bedrock incision relation used in landscape evolution is the stream power incision model (SPIM), which relates incision rate to drainage area to the m power and slope to the n power. We show the most commonly used ratio, m ∕ n = 0.5, leads to scale invariance: a landscape that has a horizontal domain of 1 km × 1 km has exactly the same relief pattern as one with a 100 km × 100 km domain. This conclusion indicates that SPIM must yield unrealistic results over a wide range of conditions.
Mark A. Torres, Ajay B. Limaye, Vamsi Ganti, Michael P. Lamb, A. Joshua West, and Woodward W. Fischer
Earth Surf. Dynam., 5, 711–730, https://doi.org/10.5194/esurf-5-711-2017, https://doi.org/10.5194/esurf-5-711-2017, 2017
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In this paper, we describe a new model for the storage times of sediments and organic carbon (OC) in river deposits. Comparisons between our model predictions and field data show good agreement, which suggests that our model accurately captures the relevant time and space scales. An implication of our model is that OC is stored in river deposits over geologic timescales and, as a result, we propose that fluvial storage plays a larger role in the carbon cycle than previously recognized.
L. Zhang, G. Parker, C. P. Stark, T. Inoue, E. Viparelli, X. Fu, and N. Izumi
Earth Surf. Dynam., 3, 113–138, https://doi.org/10.5194/esurf-3-113-2015, https://doi.org/10.5194/esurf-3-113-2015, 2015
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The saltation-abrasion model captures bedrock incision due stones striking bedrock. We present the Macro-Roughness-based Saltation-Abrasion-Alluviation (MRSAA) model, which tracks spatiotemporal variation of both bedload and alluvial thickness. It captures migrating waves of incision upstream and alluviation downstream. We apply it to incision problems not captured by saltation-abrasion, including the response to alluviation and stripping, and a simplified graben with uplift and subsidence.
A. Pelosi and G. Parker
Earth Surf. Dynam., 2, 243–253, https://doi.org/10.5194/esurf-2-243-2014, https://doi.org/10.5194/esurf-2-243-2014, 2014
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Earth Surf. Dynam., 12, 1205–1226, https://doi.org/10.5194/esurf-12-1205-2024, https://doi.org/10.5194/esurf-12-1205-2024, 2024
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Earth Surf. Dynam., 12, 1165–1191, https://doi.org/10.5194/esurf-12-1165-2024, https://doi.org/10.5194/esurf-12-1165-2024, 2024
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Earth Surf. Dynam., 12, 1121–1143, https://doi.org/10.5194/esurf-12-1121-2024, https://doi.org/10.5194/esurf-12-1121-2024, 2024
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This study investigates the use of optical PlanetScope data for offset tracking of the Earth's surface movement. We found that co-registration accuracy is locally degraded when outdated elevation models are used for orthorectification. To mitigate this bias, we propose to only correlate scenes acquired from common perspectives or base orthorectification on more up-to-date elevation models generated from PlanetScope data alone. This enables a more detailed analysis of landslide dynamics.
Cho-Hee Lee, Yeong Bae Seong, John Weber, Sangmin Ha, Dong-Eun Kim, and Byung Yong Yu
Earth Surf. Dynam., 12, 1091–1120, https://doi.org/10.5194/esurf-12-1091-2024, https://doi.org/10.5194/esurf-12-1091-2024, 2024
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Earth Surf. Dynam., 12, 1027–1048, https://doi.org/10.5194/esurf-12-1027-2024, https://doi.org/10.5194/esurf-12-1027-2024, 2024
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Julien Coatléven and Benoit Chauveau
Earth Surf. Dynam., 12, 995–1026, https://doi.org/10.5194/esurf-12-995-2024, https://doi.org/10.5194/esurf-12-995-2024, 2024
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The aim of this paper is to explain how to incorporate classical water flow routines into landscape evolution models while keeping numerical errors under control. The key idea is to adapt filtering strategies to eliminate anomalous numerical errors and mesh dependencies, as confirmed by convergence tests with analytic solutions. The emergence of complex geomorphic structures is now driven exclusively by nonlinear heterogeneous physical processes rather than by random numerical artifacts.
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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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.
Fritz Schlunegger, Edi Kissling, Dimitri Tibo Bandou, Guilhem Amin Douillet, David Mair, Urs Marti, Regina Reber, Patrick Fabian Schläfli, and Michael Alfred Schwenk
EGUsphere, https://doi.org/10.5194/egusphere-2024-683, https://doi.org/10.5194/egusphere-2024-683, 2024
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Overdeepenings are bedrock depressions filled with sediment. We combine the results of a gravity survey with drilling data to explore the morphology of such a depression beneath the city of Bern. We find that the target overdeepening comprises two basins >200 m deep. They are separated by a bedrock riegel that itself is cut by narrow canyons up to 150 m deep. We postulate that these structures formed underneath a glacier, where erosion by subglacial meltwater caused the formation of the canyons.
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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Ice cliffs are melt hot spots that increase melt rates on debris-covered glaciers which otherwise see a reduction in melt rates. In this study, we show how surface runoff streams contribute to the generation, evolution, and survival of ice cliffs by carving into the glacier and transporting rocky debris. On Kennicott Glacier, Alaska, 33 % of ice cliffs are actively influenced by streams, while nearly half are within 10 m of streams.
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.
Jon D. Pelletier, Robert G. Hayes, Olivia Hoch, Brendan Fenerty, and Luke A. McGuire
EGUsphere, https://doi.org/10.5194/egusphere-2024-1153, https://doi.org/10.5194/egusphere-2024-1153, 2024
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On the gently sloping landscapes next to mountain fronts, junction angles tend to be lower (more acute), while in bedrock landscapes where the initial landscape or tectonic forcing is likely more spatially variable, junction angles tend to be larger (more obtuse). We demonstrate this using an analysis of ~20 million junction angles for the U.S.A., augmented by analyses of the Loess Plateau, China, and synthetic landscapes.
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.
Hayden L. Jacobson, Danica L. Roth, Gabriel Walton, Margaret Zimmer, and Kerri Johnson
EGUsphere, https://doi.org/10.5194/egusphere-2023-2694, https://doi.org/10.5194/egusphere-2023-2694, 2024
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Loose grains travel farther after a fire because no vegetation is left to stop them. This matters since loose grains at the base of a slope can turn into a debris flow if it rains. To find if grass growing back after a fire had different impacts on grains of different sizes on slopes of different steepness, we dropped thousands of natural grains and measured how far they went. Large grains went farther 7 months after the fire than 11 months after, and small grain movement didn’t change much.
Elizabeth Orr, Taylor Schildgen, Stefanie Tofelde, Hella Wittmann, and Ricardo Alonso
EGUsphere, https://doi.org/10.5194/egusphere-2024-784, https://doi.org/10.5194/egusphere-2024-784, 2024
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Fluvial terraces and alluvial fans in the Toro Basin, NW Argentina record river evolution and global climate cycles over time. Landform dating reveals lower-frequency climate cycles (100-kyr) preserved downstream and higher-frequency cycles (21/40-kyr) upstream, supporting theoretical predications that longer rivers filter out higher-frequency climate signals. This finding improves our understanding of the spatial distribution of sedimentary paleoclimate records within landscapes.
Orie Cecil, Nicholas Cohn, Matthew Farthing, Sourav Dutta, and Andrew Trautz
EGUsphere, https://doi.org/10.5194/egusphere-2024-855, https://doi.org/10.5194/egusphere-2024-855, 2024
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Using computational fluid dynamics, we analyze the error trends of an analytical shear stress distribution model used to drive aeolian transport for coastal dunes which are an important line of defense against storm related flooding hazards. We find that compared to numerical simulations, the analytical model results in a net overprediction of the landward migration rate. Additionally, two data-driven approaches are proposed for reducing the error while maintaining computational efficiency.
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.
Stefan Hergarten
EGUsphere, https://doi.org/10.5194/egusphere-2024-336, https://doi.org/10.5194/egusphere-2024-336, 2024
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Faceted topographies are impressing footprints of active tectonics in geomorphology. This paper investigates the evolution of faceted topographies at normal faults and its interaction with the river network theoretically and numerically. As a main result beyond several relations for the the geometry of facets, the horizontal displacement associated to normal faults is crucial for the dissection of initially polygonal facets into triangular facets bounded by almost parallel rivers.
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.
Caroline Fenske, Jean Braun, François Guillocheau, and Cécile Robin
EGUsphere, https://doi.org/10.5194/egusphere-2024-160, https://doi.org/10.5194/egusphere-2024-160, 2024
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We have developed a new numerical model to represent the formation of ferricretes which are iron-rich, hard layers found in soils and at the surface of the Earth. We assume that the formation mechanism implies variations in the height of the water table and that the hardening rate is proportional to precipitation. The model allows us to quantify the potential feedbacks they generate on the surface topography and the thickness of the regolith/soil layer.
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.
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.
Rémi Bossis, Vincent Regard, Sébastien Carretier, and Sandrine Choy
EGUsphere, https://doi.org/10.5194/egusphere-2023-3020, https://doi.org/10.5194/egusphere-2023-3020, 2024
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The erosion of rocky coasts occurs episodically through wave action and landslides, constituting a major natural hazard. Documenting the factors that control the coastal retreat rate over millennia is fundamental to evidencing any change in time. However, the known rates to date are essentially representative of the last few decades. Here, we present a new method using the concentration of an isotope, 10Be in sediment eroded from the cliff to quantify its retreat rate averaged over millennia.
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.
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.
Cited articles
Akiyama, J. and Fukushima, Y.: Entrainment of noncohesive sediment into suspension, 3rd International Symposium on River Sedimentation, edited by: Want, S. Y., Shen, H. W., and Ding, L. Z., University of Minnesota, Minneapolis, Minnesota, USA, 803–813, 1986.
Allison, M. A. and Meselhe, E. A.: The use of large water and sediment
diversions in the lower Mississippi River (Louisiana) for coastal
restoration, J. Hydrol., 387, 346–360,
https://doi.org/10.1016/j.jhydrol.2010.04.001, 2010.
Ashley, T. C., McElroy, B., Buscombe, D., Grams, P. E., and Kaplinski, M.:
Estimating bedload from suspended load and water discharge in sand bed
rivers, Water Resour. Res., 56, e2019WR025883, https://doi.org/10.1029/2019WR025883, 2020.
Barton, J. R. and Lin, P. N.: A study of the sediment transpot in alluvial streams, Colorado A&M College, Fort Colins, USA, CO, Report 55JRB2, 1955.
Bennett, S. J., Bridge, J. S., and Best, J. L.: Fluid and sediment dynamics
of upper stage plane beds, J. Geophys. Res., 103, 1239–1274,
1998.
Bouchez, J., Lupker, M., Maurice, L., Perez, M., and Gaillardet, J.:
Prediction of depth-integrated fluxes of suspended sediment in the Amazon
River?: particle aggregation as a complicating factor, Hydrol.
Process., 794, 778–794, https://doi.org/10.1002/hyp.7868, 2011.
Brooks, N. H.: Laboratory studies of the mechanics of motion of streams flowing over a movable-bed of fine sand, Dissertaion (PhD), California Institute of Technology, Pasadena, CA, https://doi.org/10.7907/JB2P-1H91, 1954.
Brownlie, W. R.: Prediction of Flow Depth and Sediment Discharge in Open
Channels, W. M. Keck Laboratory of Hydraulics and Water Resources Report, 43A. California Institute of Technology, Pasadena, CA, USA, https://doi.org/10.7907/Z9KP803R, 1981.
Burr, D. M., Carling, P. A., and Baker, V. R.: Megaflooding on Earth and
Mars, Cambridge University Press, Cambridge, UK, 2009.
Cacchione, D. A., Wiberg, P. L., Lynch, J., Irish, J., and Traykovski, P.:
Estimates of suspended-sediment flux and bedform activity on the inner
portion of the Eel continental shelf, Mar. Geol., 154, 83–97,
1999.
Celik, I. and Rodi, W.: A deposition-entrainment model for suspended
sediment transport, Universität Karlsruhe, Karlsruhe, Germany, 1984.
Cellino, M.: Experimental study of suspension flow in open channels, Dissertation, Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland, 1–234, 1998.
Chatanantavet, P., Whipple, K. X., Adams, M. A., and Lamb, M. P.:
Experimental study on coarse grain saltation dynamics in bedrock channels,
J. Geophys. Res.-Earth, 118, 1161–1176,
https://doi.org/10.1002/jgrf.20053, 2013.
Chien, N.: The present status of research on sediment transport,
T. Am. Soc. Civ. Eng., 121, 833–868,
1954.
Colby, B. R. and Hembree, C. H.: Computations of total sediment discharge, Niobrara River near Cody, Nebraska, U.S. Geological Survey Water Supply Paper 1357, Washington, D.C., USA, 1–187, 1955.
Coleman, N. L.: Flume studies on the sediment transport coefficient, Water
Resour. Res., 6, 801–809, https://doi.org/10.1029/WR006i003p00801, 1970.
Coleman, N. L.: Velocity profiles with suspended sediment, J. Hydraul. Res., 19, 211–229, https://doi.org/10.1080/00221688109499516, 1981.
Droppo, I. G. and Ongley, E. D.: Flocculation of suspended sediment in
rivers of southeastern Canada, Water Res., 28, 1799–1809,
https://doi.org/10.1016/0043-1354(94)90253-4, 1994.
Einstein, H. A.: The Bed-Load Function for Sediment Transportation in Open
Channel Flows, Technical Report, Soil Conservation Service, U.S Department of
Agriculture, Washington, D.C., USA, 1026, 1–31, 1950.
Einstein, H. A.: Effect of heavy sediment concentration near the bed on
velocity and sediment distribution, MRD Sediment Series, University of
California, Berkeley, California, USA, 1955.
Engelund, F. and Fredsøe, J.: A Sediment Transport Model for Straight
Alluvial Channels, Nord. Hydrol., 7, 293–306, 1976.
Engelund, F. and Hansen, E.: A Monograph on Sediment Transport in Alluvial
Atreams, Danish Tech. Press, Copenhagen, Denmark, 1967.
Ferguson, R. I. and Church, M.: A simple universal equation for grain
settling velocity, J. Sediment. Res., 74, 933–937,
https://doi.org/10.1306/051204740933, 2004.
Fernandez Luque, R. and van Beek, R.: Erosion And Transport Of Bed-Load
Sediment, J. Hydraul. Res., 14, 127–144,
https://doi.org/10.1080/00221687609499677, 1976.
Garcia, M.: Sedimentation engineering: processes, measurements, modeling,
and practice, Americal Socieny of Civil Engineers, Manual 110, Reston, Virginia, USA, https://doi.org/10.1061/9780784408148, 2008.
Garcia, M. and Parker, G.: Entrainment of Bed Sediment into Suspension,
J. Hydraul. Eng., 117, 414–435,
https://doi.org/10.1061/(ASCE)0733-9429(1991)117:4(414), 1991.
Gitto, A. B., Venditti, J. G., Kostaschuk, R., and Church, M.: Representative
point-integrated suspended sediment sampling in rivers, Water Resour.
Res., 53, 2956–2971, https://doi.org/10.1002/2016WR019187, 2017.
Graf, W. H. and Cellino, M.: Suspension flows in open channels; experimental
study, J. Hydraul. Res., 40, 435–447,
https://doi.org/10.1080/00221680209499886, 2002.
Greimann, B. P. and Holly Jr., F. M.: Two-phase flow analysis of
concentration profiles, J. Hydraul. Eng., 127, 753–762,
2001.
Hartshorn, K., Hovius, N., Dade, W. B., and Slingerland, R. L.:
Climate-driven bedrock incision in an active mountain belt, Science,
297, 2036–2038, https://doi.org/10.1126/science.1075078, 2002.
Haught, D., Venditti, J. G., and Wright, S. A.: Calculation of in situ
acoustic sediment attenuation using off-the-shelf horizontal ADCPs in low
concentration settings, Water Resour. Res., 53, 5017–5037,
https://doi.org/10.1002/2016WR019695, 2017.
Hubbell, D. W. and Matejka, D. Q.: Investigations of sediment transportation, Middle Loup River at Dunning, Nebraska: with application of data from turbulence flume, U.S. Geological Survey Water Supply Paper 1476, Washington, D.C., USA, 1–123, 1959.
Jordan, P. R.: Fluvial sediment of the Mississippi River at St. Louis, Missouri, U.S. Geological Survey Water Supply Paper 1802, Washington, D.C., USA, 1–89, 1965.
Lamb, M. P. and Venditti, J. G.: The grain size gap and abrupt gravel-sand
transitions in rivers due to suspension fallout, Geophys. Res.
Lett., 43, 3777–3785, https://doi.org/10.1002/2016GL068713, 2016.
Lamb, M. P., Dietrich, W. E., and Sklar, L. S.: A model for fluvial bedrock
incision by impacting suspended and bed load sediment, J. Geophys. Res.-Earth, 113, 1–18,
https://doi.org/10.1029/2007JF000915, 2008a.
Lamb, M. P., Dietrich, W. E., and Venditti, J. G.: Is the critical shields
stress for incipient sediment motion dependent on channel-bed slope?,
J. Geophys. Res.-Earth, 113, 1–20,
https://doi.org/10.1029/2007JF000831, 2008b.
Lamb, M. P., Brun, F., and Fuller, B. M.: Direct measurements of lift and
drag on shallowly submerged cobbles in steep streams: Implications for flow
resistance and sediment transport, Water Resour. Res., 53,
7607–7629, https://doi.org/10.1002/2017WR020883, 2017.
Larsen, I. J. and Lamb, M. P.: Progressive incision of the Channeled
Scablands by outburst floods, Nature, 538, 229–232,
https://doi.org/10.1038/nature19817, 2016.
Lupker, M., France-Lanord, C., Lavé, J., Bouchez, J., Galy, V.,
Métivier, F., Gaillardet, J., Lartiges, B., and Mugnier, J. L.: A
Rouse-based method to integrate the chemical composition of river sediments:
Application to the Ganga basin, J. Geophys. Res.-Earth, 116, 1–24, https://doi.org/10.1029/2010JF001947, 2011.
Lyn, D. A.: Turbulence and turbulent transport in sediment-laden open-channel flows, W. M. Keck Laboratory, California Institute of Technology, Report KH-R-49, Pasadena, CA, USA, https://doi.org/10.7907/Z9J964BP, 1986.
Ma, H., Nittrouer, J. A., Naito, K., Fu, X., Zhang, Y., Moodie, A. J., Wang,
Y., Wu, B., and Parker, G.: The exceptional sediment load of fine-grained
dispersal systems?: Example of the Yellow River, China, Sci. Adv.,
3, 1–8, 2017.
McLean, S. R.: Depth-integrated suspended-load calculations, J.
Hydraul. Eng., 117, 1440–1458, 1992.
Mellor, G. L. and Yamada, T.: Development of a turbulence closure model for
geophysical fluid problems, Rev. Geophys., 20, 851–875, 1982.
Moodie, A. J.: Yellow River Kenli Lijin Station Survey, Zenodo,
https://doi.org/10.5281/zenodo.3457639, 2019.
Muste, M., Yu, K., Fujita, I., and Ettema, R.: Two-phase versus mixed-flow
perspective on suspended sediment transport in turbulent channel flows,
Water Resour. Res., 41, W10402, https://doi.org/10.1029/2004WR003595, 2005.
Mutsert, K. De, Lewis, K., Milroy, S., Buszowski, J., and Steenbeek, J.:
Using ecosystem modeling to evaluate trade-offs in coastal management?:
Effects of large-scale river diversions on fish and fisheries, Ecol.
Model., 360, 14–26, https://doi.org/10.1016/j.ecolmodel.2017.06.029, 2017.
Nielsen, P. and Teakle, I. A.: Turbulent diffusion of momentum and
suspended particles?: A finite-mixing-length theory, Phys. Fluids,
16, 2342–2348, https://doi.org/10.1063/1.1738413, 2004.
Nittrouer, C. A., Curtin, T. B., and DeMaster, D. J.: Concentration and flux
of suspended sediment on the Amazon continental shelf, Cont. Shelf
Res., 6, 151–174, 1986.
Nittrouer, J. A., Mohrig, D., and Allison, M.: Punctuated sand transport in the lowermost Mississippi River, J. Geophys. Res., 116, F04025, https://doi.org/10.1029/2011JF002026, 2011.
Nordin, C. F. and Dempster, G. R.: Vertical distribution of velocity and suspended sediment Middle Rio Grande New Mexico, U.S. Geol. Surv. Prof. Pap. 462-B., B1–B20, https://doi.org/10.3133/pp462B, 1963.
Paola, C. and Voller, V. R.: A generalized Exner equation for sediment mass
balance, J. Geophys. Res., 110, 1–8,
https://doi.org/10.1029/2004JF000274, 2005.
Paola, C., Parker, G., Seal, R., Sinha, S. K., Southard, J. B., and Wilcock,
P. R.: Downstream fining by selective deposition in a laboratory flume,
Science, 258, 1757–1760, https://doi.org/10.1126/science.258.5089.1757, 1992.
Parker, G.: Self-formed straight rivers with equilibrium banks and mobile
bed. Part 1. The sand-silt river, J. Fluid Mech., 89, 109–125,
1978.
Parker, G.: Surface-based bedload transport relation for gravel rivers,
J. Hydraul. Res., 28, 417–436,
https://doi.org/10.1080/00221689009499058, 1990.
Parker, G., Klingeman, P. C., and McLean, D. G.: Bedload and size
distribution in paved gravel-bed streams, J. Hydr. Eng.
Div.-ASCE, 108, 544–571, 1982.
Rose, C. P. and Thorne, P. D.: Measurements of suspended sediment
transport parameters in a tidal estuary, Cont. Shelf Res.,
21, 1551–1575, https://doi.org/10.1016/S0278-4343(00)00087-X, 2001.
Rouse, H.: Modern Conceptions of the Mechanics of Fluid Turbulence,
T. Am. Soc. Civ. Eng., 102, 463–505,
1937.
Santini, W., Camenen, B., Le Coz, J., Vauchel, P., Guyot, J.-L., Lavado, W., Carranza, J., Paredes, M. A., Pérez Arévalo, J. J., Arévalo, N., Espinoza Villar, R., Julien, F., and Martinez, J.-M.: An index concentration method for suspended load monitoring in large rivers of the Amazonian foreland, Earth Surf. Dynam., 7, 515–536, https://doi.org/10.5194/esurf-7-515-2019, 2019.
Scheingross, J. S., Brun, F., Lo, D. Y., Omerdin, K., and Lamb, M. P.:
Experimental evidence for fluvial bedrock incision by suspended and bedload
sediment, Geology, 42, 523–526, https://doi.org/10.1130/G35432.1, 2014.
Sklar, L. S. and Dietrich, W. E.: A mechanistic model for river incision
into bedrock by saltating bed load, Water Resour. Res., 40, 1–22,
https://doi.org/10.1029/2003WR002496, 2004.
Smith, J. D. and Mclean, S. R.: Spatially Averaged Flow Over a Wavy Surface,
J. Geophys. Res., 82, 1735–1746, 1977.
Sumer, B. M., Kozakiewicz, A. B., Fredsøe, J., and Deigaard, R.: Velocity and concentration profiles in sheet-flow layer of movable bed, J. Hydraul. Eng., 122, 549–558, 1996.
Syvitski, J. P. M., Vo, C. J., Kettner, A. J., and Green, P.: Impact of
humans on the flux of terrestrial sediment to the global coastal ocean,
Science, 308, 376–381, 2005.
Vanoni, V. A.: Transportation of Suspended Sediment by Water, T. Am. Soc. Civ. Eng., 111, 67–102, 1946.
Vanoni, V. A.: Factors determining bed forms of alluvial streams, J. Hydr. Eng. Div.-ASCE, 100, 363–377, 1974.
van Rijn, L.: Sediment transport, part 2: Suspended load transport, J. Hydraul. Eng., 110, 1613–1641, 1984.
Walling, D. E.: Human impact on land – ocean sediment transfer by the
world's rivers, Geomorphology, 79, 192–216,
https://doi.org/10.1016/j.geomorph.2006.06.019, 2006.
Wilcock, P. R. and Crowe, J. C.: Surface-based Transport Model for
Mixed-Size Sediment, J. Hydraul. Eng., 129, 120–128,
https://doi.org/10.1061/(ASCE)0733-9429(2003)129:2(120), 2003.
Winterwerp, J. C.: Stratification effects by fine suspended sediment at low,
medium, and very high concentrations, J. Geophys. Res.-Oceans, 111, 1–11, https://doi.org/10.1029/2005JC003019, 2006.
Wright, S. and Parker, G.: Density Stratification Effects in Sand-Bed
Rivers, J. Hydraul. Eng., 130, 783–795,
https://doi.org/10.1061/(ASCE)0733-9429(2004)130:8(783), 2004a.
Wright, S. and Parker, G.: Flow Resistance and Suspended Load in Sand-Bed
Rivers: Simplified Stratification Model, J. Hydraul. Eng.,
130, 796–805, https://doi.org/10.1061/(ASCE)0733-9429(2004)130:8(796), 2004b.
York, D.: Least squares fitting of a straight line with correlated errors,
Earth Planet. Sc. Lett., 5, 320–324, 1968.
