Articles | Volume 11, issue 1
https://doi.org/10.5194/esurf-11-21-2023
© Author(s) 2023. 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-11-21-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
19 Jan 2023
Research article |
| 19 Jan 2023
| 19 Jan 2023
Entrainment and deposition of boulders in a gravel bed river
Université Claude Bernard Lyon 1, ENS Lyon, Université Jean
Monnet Saint-Étienne & CNRS, Laboratoire de Géologie de Lyon,
Terre Planètes Environnement, UMR 5276, 69100 Villeurbanne, France
Eric Lajeunesse
Université de Paris, Institut de Physique du Globe de Paris, CNRS, 75005, Paris, France
Olivier Devauchelle
Université de Paris, Institut de Physique du Globe de Paris, CNRS, 75005, Paris, France
Vincent J. Langlois
Université Claude Bernard Lyon 1, ENS Lyon, Université Jean
Monnet Saint-Étienne & CNRS, Laboratoire de Géologie de Lyon,
Terre Planètes Environnement, UMR 5276, 69100 Villeurbanne, France
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Amande Roque-Bernard, Antoine Lucas, Eric Gayer, Pascal Allemand, Céline Dessert, and Eric Lajeunesse
Earth Surf. Dynam., 11, 363–381, https://doi.org/10.5194/esurf-11-363-2023, https://doi.org/10.5194/esurf-11-363-2023, 2023
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Sediment transport in rivers is an important matter in Earth surface dynamics. We offer a new framework of understanding of the suspended sediment transport through observatory chronicles and a simple model that is able to catch the behavior during a flood event as well as time series in a steep river catchment. We validate our approach in both tropical and alpine environments, which also offers additional estimates of the size of the suspended sediment.
Marceau Hénot, Vincent J. Langlois, Jérémy Vessaire, Nicolas Plihon, and Nicolas Taberlet
The Cryosphere, 16, 2617–2628, https://doi.org/10.5194/tc-16-2617-2022, https://doi.org/10.5194/tc-16-2617-2022, 2022
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Glacier tables are structures frequently encountered on temperate glaciers. They consist of a rock supported by a narrow ice foot which forms through differential melting of the ice. In this article, we investigate their formation by following their dynamics on the Mer de Glace (the Alps, France). We explain this phenomenon by a combination of the effect of turbulent flux, short-wave flux and direct solar radiation that sets a critical size above which a rock will form a glacier table.
Laure Guerit, Laurie Barrier, Youcun Liu, Clément Narteau, Eric Lajeunesse, Eric Gayer, and François Métivier
Earth Surf. Dynam., 6, 1011–1021, https://doi.org/10.5194/esurf-6-1011-2018, https://doi.org/10.5194/esurf-6-1011-2018, 2018
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The grain-size distribution of ancient alluvial systems is commonly determined from sections of gravel deposits exposed vertically to reconstruct paleo-environments or changes in tectonics and/or climate. To test whether such a grain-size distribution is equivalent to one of the sediments that was in direct contact with the flow at the time of deposition, we dug a large trench in an active gravel-bedded, braided river. We show that the granulometry is uniform at the scale of the active layer.
Eric Lajeunesse, Olivier Devauchelle, and François James
Earth Surf. Dynam., 6, 389–399, https://doi.org/10.5194/esurf-6-389-2018, https://doi.org/10.5194/esurf-6-389-2018, 2018
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Tracking the position of tracer particles entrained in a river is a popular method to investigate sediment transport. Using numerical simulations, we study the propagation of these tracers and find a transition between two regimes: an early regime in which the tracers are progressively set into motion and a late regime in which the tracers spread linearly. We derive analytical expressions for the behavior of the tracers in each regime. These expressions might help to interpret field data.
Pauline Delorme, Vaughan Voller, Chris Paola, Olivier Devauchelle, Éric Lajeunesse, Laurie Barrier, and François Métivier
Earth Surf. Dynam., 5, 239–252, https://doi.org/10.5194/esurf-5-239-2017, https://doi.org/10.5194/esurf-5-239-2017, 2017
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Alluvial fans are sedimentary deposits that take place at the outlet of mountain range. This location makes them the first sedimentary archive where sediments, eroded from mountains, are deposed. Their morphology is controlled by the water and sediment discharges and sediment characteristics. By using controlled laboratory experiments, we show that an alluvial fan composed of two distinct sediments has a characteristic shape; it can be decomposed into two fans made up of one sediment.
François Métivier, Eric Lajeunesse, and Olivier Devauchelle
Earth Surf. Dynam., 5, 187–198, https://doi.org/10.5194/esurf-5-187-2017, https://doi.org/10.5194/esurf-5-187-2017, 2017
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More than a century of experiments have demonstrated that many features of natural rivers can be reproduced in the laboratory. Here, we revisit some of these experiments to show that, regardless of the river's planform (single-thread or braiding), laboratory rivers behave like their natural counterparts. We further suggest that sediment transport could be responsible for the transition into a braided river, which could, in turn, explain the scarcity of laboratory single-thread channels.
Guilhem Aubert, Vincent J. Langlois, and Pascal Allemand
Earth Surf. Dynam., 4, 327–342, https://doi.org/10.5194/esurf-4-327-2016, https://doi.org/10.5194/esurf-4-327-2016, 2016
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We performed the first direct numerical simulations of the process by which the pebbles transported by a river repeatedly impact its bedrock and consequently contribute to its erosion. Our results are consistent with existing experimental measurements and allow us to predict the incision rate of a river as a function of its water discharge, the amount of sediment available, and the roughness of the bedrock, which is essential to study the long-term evolution of mountain ranges.
François Métivier, Olivier Devauchelle, Hugo Chauvet, Eric Lajeunesse, Patrick Meunier, Koen Blanckaert, Peter Ashmore, Zhi Zhang, Yuting Fan, Youcun Liu, Zhibao Dong, and Baisheng Ye
Earth Surf. Dynam., 4, 273–283, https://doi.org/10.5194/esurf-4-273-2016, https://doi.org/10.5194/esurf-4-273-2016, 2016
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In meandering rivers, flow and sediments are carried in a single thread whereas in braided rivers they are carried through numerous threads. The geometry of single-thread follows scaling relationships with discharge. The most famous of these, "Lacey's law", states that a river's width scales with the square root of its discharge. We here show that threads from braided rivers also accord with Lacey's law, and that the geometry of meandering and braided threads cannot be differenciated.
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Earth Surf. Dynam., 13, 167–189, https://doi.org/10.5194/esurf-13-167-2025, https://doi.org/10.5194/esurf-13-167-2025, 2025
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Julius Reich and Axel Winterscheid
Earth Surf. Dynam., 13, 191–217, https://doi.org/10.5194/esurf-13-191-2025, https://doi.org/10.5194/esurf-13-191-2025, 2025
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Analyzing the geometry and the dynamics of riverine bedforms (so-called dune tracking) is important for various fields of application and contributes to sound and efficient river and sediment management. We developed a workflow that enables a robust estimation of bedform characteristics and with which comprehensive sensitivity analyses can be carried out. Using a field dataset, we show that the setting of input parameters in bedform analyses can have a significant impact on the results.
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Earth Surf. Dynam., 13, 147–166, https://doi.org/10.5194/esurf-13-147-2025, https://doi.org/10.5194/esurf-13-147-2025, 2025
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Caroline Fenske, Jean Braun, François Guillocheau, and Cécile Robin
Earth Surf. Dynam., 13, 119–146, https://doi.org/10.5194/esurf-13-119-2025, https://doi.org/10.5194/esurf-13-119-2025, 2025
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Earth Surf. Dynam., 13, 97–117, https://doi.org/10.5194/esurf-13-97-2025, https://doi.org/10.5194/esurf-13-97-2025, 2025
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Channel belts comprise the area affected by a river due to lateral migration and floods. As a landform, they affect water resources and flood hazard, and they often host unique ecological communities. We develop a model describing the evolution of channel-belt area over time. The model connects the behaviour of the river to the evolution of the channel belt over a timescale of centuries. A comparison to selected data from experiments and real river systems verifies the random walk approach.
Rémi Bossis, Vincent Regard, Sébastien Carretier, and Sandrine Choy
Earth Surf. Dynam., 13, 71–79, https://doi.org/10.5194/esurf-13-71-2025, https://doi.org/10.5194/esurf-13-71-2025, 2025
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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.
Jean Vérité, Clément Narteau, Olivier Rozier, Jeanne Alkalla, Laurie Barrier, and Sylvain Courrech du Pont
Earth Surf. Dynam., 13, 23–39, https://doi.org/10.5194/esurf-13-23-2025, https://doi.org/10.5194/esurf-13-23-2025, 2025
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Orie Cecil, Nicholas Cohn, Matthew Farthing, Sourav Dutta, and Andrew Trautz
Earth Surf. Dynam., 13, 1–22, https://doi.org/10.5194/esurf-13-1-2025, https://doi.org/10.5194/esurf-13-1-2025, 2025
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Hayden L. Jacobson, Danica L. Roth, Gabriel Walton, Margaret Zimmer, and Kerri Johnson
Earth Surf. Dynam., 12, 1415–1446, https://doi.org/10.5194/esurf-12-1415-2024, https://doi.org/10.5194/esurf-12-1415-2024, 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 N. Orr, Taylor F. Schildgen, Stefanie Tofelde, Hella Wittmann, and Ricardo N. Alonso
Earth Surf. Dynam., 12, 1391–1413, https://doi.org/10.5194/esurf-12-1391-2024, https://doi.org/10.5194/esurf-12-1391-2024, 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.
Fritz Schlunegger, Edi Kissling, Dimitri Tibo Bandou, Guilhem Amin Douillet, David Mair, Urs Marti, Regina Reber, Patrick Schläfli, and Michael Alfred Schwenk
Earth Surf. Dynam., 12, 1371–1389, https://doi.org/10.5194/esurf-12-1371-2024, https://doi.org/10.5194/esurf-12-1371-2024, 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.
Stefan Hergarten
Earth Surf. Dynam., 12, 1315–1327, https://doi.org/10.5194/esurf-12-1315-2024, https://doi.org/10.5194/esurf-12-1315-2024, 2024
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Justin A. Nghiem, Gen K. Li, Joshua P. Harringmeyer, Gerard Salter, Cédric G. Fichot, Luca Cortese, and Michael P. Lamb
Earth Surf. Dynam., 12, 1267–1294, https://doi.org/10.5194/esurf-12-1267-2024, https://doi.org/10.5194/esurf-12-1267-2024, 2024
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Fine sediment grains in freshwater can cohere into faster-settling particles called flocs, but floc settling velocity theory has not been fully validated. Combining three data sources in novel ways in the Wax Lake Delta, we verified a semi-empirical model relying on turbulence and geochemical factors. For a physics-based model, we showed that the representative grain diameter within flocs relies on floc structure and that heterogeneous flow paths inside flocs increase floc settling velocity.
Jessica Marggraf, Guillaume Dramais, Jérôme Le Coz, Blaise Calmel, Benoît Camenen, David J. Topping, William Santini, Gilles Pierrefeu, and François Lauters
Earth Surf. Dynam., 12, 1243–1266, https://doi.org/10.5194/esurf-12-1243-2024, https://doi.org/10.5194/esurf-12-1243-2024, 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 measurements. This is the first method that includes a fully applicable uncertainty estimation; it can easily be applied to any other study sites.
Dominic T. Robson and Andreas C. W. Baas
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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Barchans are fast-moving sand dunes which form large populations (swarms) on Earth and Mars. We show that a small range of model parameters produces swarms in which dune size does not vary downwind – something that is observed in nature but not when using earlier models. We also show how the shape of dunes and the spatial patterns they form are affected by wind direction. This work furthers our understanding of the interplay between environmental drivers, dune interactions, and swarm properties.
Jeffrey Keck, Erkan Istanbulluoglu, Benjamin Campforts, Gregory Tucker, and Alexander Horner-Devine
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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MassWastingRunout (MWR) is a new landslide runout model designed for sediment transport, landscape evolution, and hazard assessment applications. MWR is written in Python and includes a calibration utility that automatically determines best-fit parameters for a site and empirical probability density functions of each parameter for probabilistic model implementation. MWR and Jupyter Notebook tutorials are available as part of the Landlab package at https://github.com/landlab/landlab.
Ariane Mueting and Bodo Bookhagen
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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Topographic metrics were used to understand changes due to tectonic activity. We evaluated the relative tectonic activity along the Ulsan Fault Zone (UFZ), one of the most active fault zones in South Korea. We divided the UFZ into five segments, based on the spatial variation in activity. We modeled the landscape evolution of the study area and interpreted tectono-geomorphic history during which the northern part of the UFZ experienced asymmetric uplift, while the southern part did not.
Juditha Aga, Livia Piermattei, Luc Girod, Kristoffer Aalstad, Trond Eiken, Andreas Kääb, and Sebastian Westermann
Earth Surf. Dynam., 12, 1049–1070, https://doi.org/10.5194/esurf-12-1049-2024, https://doi.org/10.5194/esurf-12-1049-2024, 2024
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Coastal rock cliffs on Svalbard are considered to be fairly stable; however, long-term trends in coastal-retreat rates remain unknown. This study examines changes in the coastline position along Brøggerhalvøya, Svalbard, using aerial images from 1970, 1990, 2010, and 2021. Our analysis shows that coastal-retreat rates accelerate during the period 2010–2021, which coincides with increasing storminess and retreating sea ice.
Aaron T. Steelquist, Gustav B. Seixas, Mary L. Gillam, Sourav Saha, Seulgi Moon, and George E. Hilley
Earth Surf. Dynam., 12, 1071–1089, https://doi.org/10.5194/esurf-12-1071-2024, https://doi.org/10.5194/esurf-12-1071-2024, 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 for 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.
Johannes Leinauer, Michael Dietze, Sibylle Knapp, Riccardo Scandroglio, Maximilian Jokel, and Michael Krautblatter
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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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 4 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.
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.
Chloé Seibert, Cecilia McHugh, Chris Paola, Leonardo Seeber, and James Tucker
EGUsphere, https://doi.org/10.5194/egusphere-2024-2011, https://doi.org/10.5194/egusphere-2024-2011, 2024
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We propose a new mechanism of widespread surficial co-seismic sediment entrainment by seismic motions in subduction earthquakes. Our physical experiments show that shear from sediment-water relative velocities from long-period earthquake motions can mobilize synthetic fine marine sediment. High frequency vertical shaking can enhance this mobilization. According to our results, the largest tsunamigenic earthquakes that rupture to the trench may be distinguishable in the sedimentary record.
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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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.
Alexander B. Prescott, Jon D. Pelletier, Satya Chataut, and Sriram Ananthanarayan
EGUsphere, https://doi.org/10.5194/egusphere-2024-1138, https://doi.org/10.5194/egusphere-2024-1138, 2024
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Many Earth surface processes are controlled by the spatial pattern of surface water flow. We review commonly used methods for predicting such spatial patterns in digital landform models and document the pros and cons of commonly used methods. We propose a new method that is designed to minimize those limitations and show that it works well in a variety of test cases.
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.
Aline Zinelabedin, Joel Mohren, Maria Wierzbicka-Wieczorek, Tibor Janos Dunai, Stefan Heinze, and Benedikt Ritter
EGUsphere, https://doi.org/10.5194/egusphere-2024-592, https://doi.org/10.5194/egusphere-2024-592, 2024
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In order to interpret the formation processes of subsurface salt wedges and polygonal patterned grounds from the northern Atacama Desert, we present a multi-methodological approach. Due to the high salt content of the wedges, we suggest that their formation is dominated by subsurface salt dynamics requiring moisture. We assume that the climatic conditions during the wedge growth were slightly wetter than today, offering the potential to use the wedges as palaeoclimate archives.
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.
Dominik Amschwand, Jonas Wicky, Martin Scherler, Martin Hoelzle, Bernhard Krummenacher, Anna Haberkorn, Christian Kienholz, and Hansueli Gubler
EGUsphere, https://doi.org/10.5194/egusphere-2024-172, https://doi.org/10.5194/egusphere-2024-172, 2024
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Rock glaciers are comparatively climate-resilient coarse-debris permafrost landforms. We estimate the energy budget of the seasonally thawing active layer (AL) of rock glacier Murtèl (Swiss Alps) based on a novel sub-surface sensor array. In the coarse-blocky AL during the thaw season, heat is transferred by thermal radiation and air convection. The ground heat flux is largely used to melt ground ice in the AL that protects to some degree the permafrost body beneath.
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.
Pierre Dietrich, François Guillocheau, Guilhem Amin Douillet, Neil Patrick Griffis, Guillaume Baby, Daniel Paul Le Heron, Laurie Barrier, Maximilien Mathian, Isabel Patricia Montañez, Cécile Robin, Thomas Gyomlai, Christoph Kettler, and Axel Hofmann
EGUsphere, https://doi.org/10.5194/egusphere-2024-467, https://doi.org/10.5194/egusphere-2024-467, 2024
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At the evocation of ‘icy landscapes’, Africa is not the first place that comes to mind. The modern relief of Southern Africa is generally considered as resulting from uplift and counteracting erosion. We show that many modern reliefs of this region are fossil glacial landscapes tied to an ice age that occurred 300 million years ago: striated pavements, valleys, fjords. We emphasise how these landscapes have escaped being erased for hundreds of millions of years, generally considered improbable.
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.
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.
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.
Cited articles
Abramian, A., Devauchelle, O., and Lajeunesse, E.: Laboratory rivers adjust
their shape to sediment transport, Phys. Rev. E, 102, 053101, https://doi.org/10.1103/PhysRevE.102.053101, 2020.
Allemand, P.: Entrainment and deposition of boulders in a gravel bed river, Harvard Dataverse [data set], https://doi.org/10.7910/DVN/QRHM8E, 2021.
Allemand, P., Delacourt, C., Lajeunesse, E., Devauchel, O., and Beauducel, F.: Erosive effects of the storm Helena (1963) on Basse Terre Island (Guadeloupe – Lesser Antilles Arc), Geomorphology, 206, 79–86, https://doi.org/10.1016/j.geomorph.2013.09.020, 2014.
Ancey, C.: Stochastic modeling in sediment dynamics: Exner equation for planar bed incipient bed load transport conditions., J. Geophys. Res.-Earth, 115, F00A11, https://doi.org/10.1029/2009JF001260, 2010.
Ancey, C., Davison, A., Bohm, T., Jodeau, M., and Frey, P.: Entrainment and
motion of coarse particles in a shallow water stream down a steep slope, J.
Fluid Mech., 595, 83–114, https://doi.org/10.1017/S0022112007008774, 2008.
Aubert, G., Langlois, V. J., and Allemand, P.: Bedrock incision by bedload:
insights from direct numerical simulations, Earth Surf. Dynam., 4, 327–342,
https://doi.org/10.5194/esurf-4-327-2016, 2016.
Bagnold, R.: The nature of saltation and of Bedload transport in water, P. Roy. Soc. Lond. A, 332, 473–504, 1973.
Bagnold, R.: Bedload transport by natural rivers, Water Resour. Res., 13, 303–312, 1977.
Bradley, D. N.: Direct Observation of Heavy-Tailed Storage Times of Bedload
Tracer Particles Causing Anomalous Superdiffusion, Geophys. Res. Lett., 44, 12227–12235, https://doi.org/10.1002/2017GL075045, 2017.
Bradley, D. N. and Tucker, G. E.: Measuring gravel transport and dispersion
in a mountain river using passive radio tracers, Earth Surf. Proc. Land., 37, 1034–1045, https://doi.org/10.1002/esp.3223, 2012.
Buffington, J. and Montgomery, D.: A systematic analysis of eight decades of incipient motion studies, with special reference to gravelbedded rivers, Water Resour. Res., 33, 1993–2029, https://doi.org/10.1029/97WR03138, 1997.
Burtin, A., Bollinger, L., Vergne, J., Cattin, R., and Nábelek, J.:
Spectral analysis of seismic noise induced by rivers: A new tool to monitor
spatiotemporal changes in stream hydrodynamics, J. Geophys. Res.-Solid, 113, B05301, https://doi.org/10.1029/2007JB005034, 2008.
Burtin, A., Cattin, R., Bollinger, L., Vergne, J., Steer, P., Robert, A.,
Findling, N., and Tiberi, C.: Towards the hydrologic and bedload monitoring
from high-frequency seismic noise in a braided river: The “torrent de St
Pierre”, French Alps, J. Hydrol., 408, 43–53, https://doi.org/10.1016/j.jhydrol.2011.07.014, 2011.
Burtin, A., Hovius, N., McArdell, B., Turowski, J., and Vergne, J.: Seismic
constraints on dynamic links between geomorphic processes and routing of
sediment in a steep mountain catchment, Earth Surf. Dynam., 2, 21–33,
https://doi.org/10.5194/esurf-2-21-2014, 2014.
Burtin, A., Hovius, N., and Turowski, J. M.: Seismic monitoring of torrential and fluvial processes, Earth Surf. Dynam., 4, 285–307, https://doi.org/10.5194/esurf-4-285-2016, 2016.
Carretier, S., Guerit, L., Harries, R., Regard, V., Maffre, P., and Bonnet, S.: The distribution of sediment residence times at the foot of mountains and its implications for proxies recorded in sedimentary basins, Earth Planet. Sc. Lett., 546, 116448, https://doi.org/10.1016/j.epsl.2020.116448, 2020.
Cassel, M., Piegay, H., Fantino, G., Lejot, J., Bultingaire, L., Michel, K.,
and Perret, F.: Comparison of ground-based and UAV a-UHF artificial tracer
mobility monitoring methods on a braided river, Earth Surf. Proc. Land., 5, 1123–1140, https://doi.org/10.1002/esp.4777, 2020.
Charru, F., Mouilleron, H., and Eiff, O.: Erosion and deposition of particles on a bed shared by a viscous flow, J. Fluid Mech., 519, 55–80, https://doi.org/10.1017/S0022112004001028, 2004.
Chauvet, H., Devauchelle, O., Métivier, F., Lajeunesse, E., and Limare,
A.: Recirculation cells in a wide channel, Phys. Fluids, 26, 016604,
https://doi.org/10.1063/1.4862442, 2014.
Church, M.: Bed material transport and the morphology of alluvial river
channels, Annu. Rev. Earth Planet. Sci., 34, 325–354, https://doi.org/10.1146/annurev.earth.33.092203.122721, 2006.
Church, M. and Haschenburger, J. K.: What is the “Active Layer”?, Water
Resour. Res., 53, 5–10, https://doi.org/10.1002/2016WR019675, 2017.
Delacourt, C., Allemand, P., Jaud, M., Grandjean, P., Deschamps, A., Ammann,
J., Cuq, V., and Suanez, S.: DRELIO: An unmanned helicopter for imaging
coastal areas, SI 56, in: Proceedings of the 10th International Coastal
Symposium, Lisbon, Portugal, 1489–1493, APR 13–18, 2009.
Devauchelle, O., Malverti, L., Lajeunesse, E., Lagrée, P., Josserand, C., and Thu-Lam, K.: Stability of bedforms in laminar flows with free surface: from bars to ripples, J. Fluid Mech., 642, 329–348, https://doi.org/10.1017/S0022112009991790, 2010.
Dietrich, W. and Smith, J.: Bedload Transport in a River Meander, Water Resour. Res., 20, 1355–1380, https://doi.org/10.1029/WR020i010p01355, 1984.
Dunne, K. B. and Jerolmack, D. J.: What sets river width?, Sci. Adv., 6,
eabc1505, https://doi.org/10.1126/sciadv.abc1505, 2020.
Einstein, H. A.: Bed load transport as a probability problem, in: Sedimentation: Symposium to Honor Professor H. A. Einstein, 1972 (translation from German of H. A. Einstein doctoral thesis), Originally presented to Federal Institute of Technology, Zurich, Switzerland, C1–C105, 1937.
Einstein, H. A.: The bed-load function for sediment transportation in open channel flows, US Department of Agriculture, Soil Conservation Service,
74 pp., https://naldc.nal.usda.gov/download/CAT86201017/PDF (last access: 17 January 2023), 1950.
Ferguson, R. and Wathen, S.: Tracer-pebble movement along a concave river
profile: Virtual velocity in relation to grain size and shear stress, Water
Resour. Res., 34, 2031–2038, https://doi.org/10.1029/98WR01283, 1998.
Feuillet, N., Manighetti, I., and Tapponnier, P.: Arc parallel extension and
localization of volcanic complexes in Guadeloupe, Lesser Antilles, J. Geophys. Res., 107, 1–29, https://doi.org/10.1029/2001JB000308, 2002.
Furbish, D., Roseberry, J., and Schmeeckle, M.: A probabilistic description
of the bedload sediment flux: 3. The particle velocity distribution and the
diffusive flux, J. Geophys. Res.h, 117, F03033, https://doi.org/10.1029/2012JF002356, 2012a.
Furbish, D. J., Haff, P. K., Roseberry, J. C., and Schmeeckle, M. W.: A
probabilistic description of the bed load sediment flux: 1. Theory, J. Geophys. Res., 117, F03031, https://doi.org/10.1029/2012JF002352, 2012b.
Gaillardet, J., Braud, I., Hankard, F., Anquetin, S., Bour, O., Dorfliger, N., et al.: OZCAR: The French network of critical zone observatories, Vadose Zone J., 17, 180067, https://doi.org/10.2136/vzj2018.04.0067, 2018.
Gimbert, F., Tsai, V. C., and Lamb, M. P.: A physical model for seismic noise generation by turbulent flow in rivers, J. Geophys. Res.-Earth, 119, 2209–2238, https://doi.org/10.1002/2014JF003201, 2014.
Gomez, B.: Bedload transport, Earth-Sci. Rev., 31, 89–132, https://doi.org/10.1016/0012-8252(91)90017-A, 1991.
Guérin, A., Devauchelle, O., Robert, V., Kitou, T., Dessert, C., Quiquerez, A., Allemand, P., and Lajeunesse, E.: Stream-discharge surges generated by groundwater flow, Geophys. Res. Lett., 46, 7447–7455, https://doi.org/10.1029/2019GL082291, 2019.
Habersack, H., Kreisler A., Rindler R., Aigner J., Seitz, H., Liedermann,
M., and Laronne, J. B.: Integrated automatic and continuous bedload monitoring in gravel bed rivers, Geomorphology, 291, 80–93, https://doi.org/10.1016/j.geomorph.2016.10.020, 2017.
Haschenburger, J. K. and Church, M.: Bed material transport estimated from
the virtual velocity of sediment, Earth Surf. Proc. Land., 23, 791–808, https://doi.org/10.1002/(SICI)1096-9837(199809)23:9<791::AID-ESP888>3.0.CO;2-X, 1998.
Haschenburger, J. K. and Wilcock, P. R.: Partial transport in a natural gravel bed channel, Water Resour. Rese., 39, 1020, https://doi.org/10.1029/2002WR001532, 2003.
Helley, E. J. and Smith, W.: Development and calibration of a pressure-difference bedload sampler, Geological Survey Open-File Report,
US Geological Survey, https://doi.org/10.3133/ofr73108, 1971.
Henderson, F. M.: Stability of alluvial channels, T. Am. Soc. Civ. Eng., 128,
657–686, 1963.
Houssais, M. and Lajeunesse, E.: Bedload transport of a bimodal sediment bed, J. Geophys. Res., 117, F04015, https://doi.org/10.1029/2012JF002490, 2012.
Hydroportail – Ministère de la Transition Ecologique: Hydro-Portail, http://www.hydro.eaufrance.fr/, last access: 17 January 2023.
Jaud, M., Passot, S., Allemand, P., Le Dantec, N., Grandjean, P., and Delacourt, C.: Suggestions to Limit Geometric Distortions in the Reconstruction of Linear Coastal Landforms by SfM Photogrammetry with PhotoScan and MicMac for UAV Surveys with Restricted GCPs Pattern, Drones, 3, 2, https://doi.org/10.3390/drones3010002, 2019a.
Jaud, M., Delacourt, C., Le Dantec, N., Allemand, P., Ammann, J., Grandjean, P., Nouaille, H., Prunier, C., Cuq, V.; Augereau, E., Cocquenpot, L., and Floc'h, F.: Diachronic UAV Photogrammetry of a Sandy Beach in Brittany (France) for a Long-Term Coastal Observatory, ISPRS Int. J. Geo-Inform., 8, 267, https://doi.org/10.3390/ijgi8060267, 2019b.
Jury, M. R. and Bernard, D.: Climate trends in the East Antilles Islands, Int. J. Climatol., 40, 36–51, https://doi.org/10.1002/joc.6191, 2020.
Lague, D., Hovius, N., and Davy, P.: Discharge, discharge variability, and the bedrock channel profile, J. Geophys. Res., 110, F04006, https://doi.org/10.1029/2004JF000259, 2005.
Lajeunesse, E., Malverti, L., and Charru, F.: Bedload transport in turbulent
flow at the grain scale: experiments and modeling, J. Geophys. Res, 115,
F04001, https://doi.org/10.1029/2009JF001628, 2010.
Lajeunesse, E., Devauchelle, O., Lachaussée, F., and Claudin, P.: Bedload transport in laboratory rivers: the erosion-deposition model, in: Gravel-bed Rivers: Gravel Bed Rivers and Disasters, Wiley-Blackwell, Oxford, UK, 415–438, https://doi.org/10.1002/9781118971437.ch15, 2017.
Lajeunesse, E., Devauchelle, O., and James, F.: Advection and dispersion of
bed load tracers, Earth Surf. Dynam., 6, 389–399, https://doi.org/10.5194/esurf-6-389-2018, 2018.
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., 113, F02008, https://doi.org/10.1029/2007JF000831, 2008.
Leopold, L. B. and Emmett, W. W.: Bedload measurements, East 85 Fork River,
Wyoming, P. Natl. Acad. Sci. USA, 73, 1000–1004, 1976.
Limerinos, J. T.: Determination of the Manning coefficient from measured bed
roughness in natural channels, United States Geological Survey Water-Supply Paper 1898-B, US Geological Survey, https://doi.org/10.3133/wsp1898B, 1970.
Liu, Y., Metivier, F., Lajeunesse, E., Lancien, P., Narteau, C., and Meunier, P.: Measuring bedload in gravel bed mountain rivers: Averaging methods and sampling strategies, Geodin. Acta, 21, 81–92, https://doi.org/10.3166/ga.21.81-92, 2008.
Mao, L., Carrillo, R., Escauriaza, C., and Iroume, A.: Flume and field-based
calibration of surrogate sensors for monitoring bedload transport, Geomorphology, 253, 10–21, https://doi.org/10.1016/j.geomorph.2015.10.002, 2016.
Martin, R. L., Jerolmack, D. J., and Schumer, R.: The physical basis for
anomalous diffusion in bedload transport, J. Geophys. Res., 117, F01018,
https://doi.org/10.1029/2011JF002075, 2012.
Métivier, F., Meunier, P., Moreira, M., Crave, A., Chaduteau, C., Ye, B.,
and Liu, G.: Transport dynamics and morphology of a high mountain stream during the peak flow season: The ürümqi River (Chinese Tianshan), in:
River Flow 2004: Proceedings of the Second International Conference on
Fluvial Hydraulics, edited by: Massimo Greco, M., Carravetta, A., and Della Morte, R., Taylor and Francis, Philadelphia, PA, 761–777, ISBN 90 5809 658 0, 2004.
Métivier, F., Lajeunesse, E., and Devauchelle, O.: Laboratory rivers:
Lacey's law, threshold theory, and channel stability, Earth Surf. Dynam., 5,
187–198, https://doi.org/10.5194/esurf-5-187-2017, 2017.
Meunier, P., Metivier, F., Lajeunesse, E., Meriaux, A. S., and Faure, J.:
Flow pattern and sediment transport in a braided river: The “torrent de St
Pierre” (French Alps), J. Hydrol., 330, 496–505, https://doi.org/10.1016/j.jhydrol.2006.04.009, 2006.
Nezu, I. and Nakagawa, H.: Turbulence in Open Channel Flows, in: IAHR Monograph, A. A. Balkema, Rotterdam, https://doi.org/10.1061/(ASCE)0733-9429(1994)120:10(1235), 1993.
Papangelakis, E., MacVicar, B., and Ashmore, P.: Bedload sediment transport
regimes of semi-alluvial rivers conditioned by urbanization and stormwater
management, Water Resour. Res., 55, 10565–10587, https://doi.org/10.1029/2019WR025126, 2019.
Papangelakis, E., MacVicar, B. J., Montakhab, A. F., and Ashmore, P.: Flow
strength and bedload sediment travel distance in gravel bed rivers, Water
Resour. Res., 58, e2022WR032296, https://doi.org/10.1029/2022WR032296, 2022.
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.
Pfeiffer, A. M. and Finnegan, N. J.: Regional variation in gravel riverbed
mobility, controlled by hydrologic regime and sediment supply, Geophys. Res. Lett., 45, 3097–3106, https://doi.org/10.1002/2017GL076747, 2018.
Phillips, C., Hill, K. M., Paola, C., Singer, M., and Jerolmack, D.: Effect
of flood hydrograph duration, magnitude, and shape on bed load transport dynamics, Geophys. Res. Lett., 45, 8264–8271, https://doi.org/10.1029/2018GL078976,
2018.
Phillips, C. B. and Jerolmack, D. J.: Dynamics and mechanics of bed-load
tracer particles, Earth Surf. Dynam., 2, 513–530, https://doi.org/10.5194/esurf-2-513-2014, 2014.
Phillips, C. B. and Jerolmack, D. J.: Self-organization of river channels, as a critical filter on climate signals, Science, 352, 694–697, https://doi.org/10.1126/science.aad3348, 2016.
Rad, S., Louvat, P., Gorge, C., Gaillardet, J., and Allègre, C. J.: River
dissolved and solid loads in the Lesser Antilles: new insight into basalt
weathering processes, J. Geochem. Explor., 88, 308–312, https://doi.org/10.1016/j.gexplo.2005.08.063, 2006.
Rupnik, E., Daakir, M., and Deseilligny, M. P.: Open Geospatial Data, Software and Standards, MicMac – a free, open-source solution for photogrammetry, Open geospatial data, softw. stand., 2, 14, https://doi.org/10.1186/s40965-017-0027-2, 2017.
Samper, A., Quidelleur, X., Lahitte, P., and Mollex, D.: Timing of effusive volcanism and collapse events within an oceanic arc island: Basse-Terre, Guadeloupe archipelago (Lesser Antilles Arc), Earth Planet. Sc. Lett., 258, 175–191, https://doi.org/10.1016/j.epsl.2007.03.030, 2007.
Seminara, G.: Fluvial sedimentary patterns, Annu. Rev. Fluid Mech., 42, 43–66, https://doi.org/10.1146/annurev-fluid-121108-145612, 2010.
Shields, A. S.: Anwendung der Aehnlichkeitsmechanik und der Turbulenzforschung auf die Geschiebebewegung, Mitteilung der Preussischen
Versuchsanstalt für Wasserbau und Schiffbau, 26 pp., http://resolver.tudelft.nl/uuid:61a19716-a994-4942-9906-f680eb9952d6 (last access: 17 January 2023), 1936.
Summerfield, M. A. and Hulton, N. J.: Natural controls of fluvial denudation rates in major world drainage basins, J. Geophys. Res., 99, 13871–13883, https://doi.org/10.1029/94JB00715, 1994.
Terry, J. P., and Goff, J.: Megaclasts: proposed revised nomenclature at the
coarse end of the Udden-Wentworth grain-size scale for sedimentary particles, J. Sediment. Res., 84, 192–197, https://doi.org/10.2110/jsr.2014.19, 2014.
Thorne, P. D.: An overview of underwater sound generated by interparticle
collisions and its application to the measurements of coarse sediment bedload transport, Earth Surf. Dynam., 2, 531–543, https://doi.org/10.5194/esurf-2-531-2014, 2014.
Turowski, J. M. and Rickenmann, D.: Tools and cover effects in bedload transport observations in the Pitzbach, Austria, Earth Surf. Proc. Land., 34, 26–37, https://doi.org/10.1002/esp.1686, 2009.
Wilcock, P. R. and McArdell, B. W.: Partial transport of a sand/gravel
sediment, Water Resour. Rese., 33, 235–245, https://doi.org/10.1029/96WR02672, 1997.
Wolman, M. G. and Miller, J. P.: Magnitude and frequency of forces in geomorphic processes, J. Geol., 68, 54–74, 1960.
Yager, E. M., Dietrich, W. E., Kirchner, J. W., and McArdell, B. W.: Prediction of sediment transport in step-pool channels, Water Resour. Res., 48, W01541, https://doi.org/10.1029/2011WR010829, 2012.
Short summary
We recorded yearly images of a bar of the Vieux-Habitants river, a river located on Basse-Terre (Guadeloupe). These images, combined with measurements of the river discharge, allow us to monitor the evolution of the population of boulders. We estimate the smallest discharge that can move the boulders and calculate the effective transport time. We show that the likelihood of a given boulder remaining at the same location decreases exponentially, with an effective residence time of 17 h.
We recorded yearly images of a bar of the Vieux-Habitants river, a river located on Basse-Terre...
