Articles | Volume 11, issue 5
https://doi.org/10.5194/esurf-11-995-2023
© 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-11-995-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
09 Oct 2023
Research article |
| 09 Oct 2023
| 09 Oct 2023
Building a bimodal landscape: bedrock lithology and bed thickness controls on the morphology of Last Chance Canyon, New Mexico, USA
Sam Anderson
CORRESPONDING AUTHOR
Department of Earth and Environmental Sciences, Tulane University, New Orleans, LA 70118, USA
Nicole Gasparini
Department of Earth and Environmental Sciences, Tulane University, New Orleans, LA 70118, USA
Joel Johnson
Jackson School of Geosciences, The University of Texas at Austin, Austin, TX 78712, USA
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Angel D. Monsalve, Samuel R. Anderson, Nicole M. Gasparini, and Elowyn M. Yager
Geosci. Model Dev., 18, 3427–3451, https://doi.org/10.5194/gmd-18-3427-2025, https://doi.org/10.5194/gmd-18-3427-2025, 2025
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Rivers shape landscapes by moving sediments and changing their beds, but existing computer models oversimplify these processes by only considering erosion. We developed new software that simulates how rivers transport sediments and change over time through both erosion and deposition. This helps scientists and engineers better predict river behavior for water management, flood prevention, and ecosystem protection.
Angel D. Monsalve, Samuel R. Anderson, Nicole M. Gasparini, and Elowyn M. Yager
Geosci. Model Dev., 18, 3427–3451, https://doi.org/10.5194/gmd-18-3427-2025, https://doi.org/10.5194/gmd-18-3427-2025, 2025
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Rivers shape landscapes by moving sediments and changing their beds, but existing computer models oversimplify these processes by only considering erosion. We developed new software that simulates how rivers transport sediments and change over time through both erosion and deposition. This helps scientists and engineers better predict river behavior for water management, flood prevention, and ecosystem protection.
Matanya Hamawi, Joel P. L. Johnson, Susan Bilek, Jens M. Turowski, and John B. Laronne
EGUsphere, https://doi.org/10.5194/egusphere-2025-591, https://doi.org/10.5194/egusphere-2025-591, 2025
This preprint is open for discussion and under review for Earth Surface Dynamics (ESurf).
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Water level suddenly rises during flash floods in dry regions having a distinct impact on bedload – large sediment rolling and saltating on the riverbed. Using sensor-equipped pebbles and seismic monitoring in a field setting, we demonstrate that bedload activity is very high in both shallow and deep sudden flows. These findings can help improve bedload transport models, particularly when using seismic sensors, by providing new insights into bedload dynamics.
Claire C. Masteller, Joel P. L. Johnson, Dieter Rickenmann, and Jens M. Turowski
EGUsphere, https://doi.org/10.5194/egusphere-2024-3250, https://doi.org/10.5194/egusphere-2024-3250, 2024
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This paper presents a novel model that predicts the how gravel riverbeds may evolve in response to differences in the frequency and severity of flood events. We test our model using a 23-year long record of river flow and gravel transport from the Swiss Prealps. We find that our model reliably captures yearly patterns in gravel transport in this setting. Our new model is a major advance towards better predictions of river erosion that account for the flood history of a gravel bed river.
Nicole M. Gasparini, Adam M. Forte, and Katherine R. Barnhart
Earth Surf. Dynam., 12, 1227–1242, https://doi.org/10.5194/esurf-12-1227-2024, https://doi.org/10.5194/esurf-12-1227-2024, 2024
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The time it takes for a landscape to adjust to new environmental conditions is critical for understanding the impacts of past and future environmental changes. We used different computational models and methods and found that predicted times for a landscape to reach a stable condition vary greatly. Our results illustrate that reporting how timescales are measured is important. Modelers should ensure that the measurement technique addresses the question.
Nathan J. Lyons, Pedro Val, James S. Albert, Jane K. Willenbring, and Nicole M. Gasparini
Earth Surf. Dynam., 8, 893–912, https://doi.org/10.5194/esurf-8-893-2020, https://doi.org/10.5194/esurf-8-893-2020, 2020
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Organisms evolve in ever-changing environments under complex process interactions. We applied a new software modelling tool to assess how changes in river course impact the evolution of riverine species. Models illustrate the climatically and tectonically forced landscape changes that can drive riverine biodiversity, especially where topographic relief is low. This research demonstrates that river course changes can contribute to the high riverine biodiversity found in real-world lowland basins.
Katherine R. Barnhart, Eric W. H. Hutton, Gregory E. Tucker, Nicole M. Gasparini, Erkan Istanbulluoglu, Daniel E. J. Hobley, Nathan J. Lyons, Margaux Mouchene, Sai Siddhartha Nudurupati, Jordan M. Adams, and Christina Bandaragoda
Earth Surf. Dynam., 8, 379–397, https://doi.org/10.5194/esurf-8-379-2020, https://doi.org/10.5194/esurf-8-379-2020, 2020
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Landlab is a Python package to support the creation of numerical models in Earth surface dynamics. Since the release of the 1.0 version in 2017, Landlab has grown and evolved: it contains 31 new process components, a refactored model grid, and additional utilities. This contribution describes the new elements of Landlab, discusses why certain backward-compatiblity-breaking changes were made, and reflects on the process of community open-source software development.
Ronda Strauch, Erkan Istanbulluoglu, Sai Siddhartha Nudurupati, Christina Bandaragoda, Nicole M. Gasparini, and Gregory E. Tucker
Earth Surf. Dynam., 6, 49–75, https://doi.org/10.5194/esurf-6-49-2018, https://doi.org/10.5194/esurf-6-49-2018, 2018
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We develop a model of annual probability of shallow landslide initiation triggered by soil water from a hydrologic model. Our physically based model accommodates data uncertainty using a Monte Carlo approach. We found elevation-dependent patterns in probability related to the stabilizing effect of forests and soil and slope limitation at high elevations. We demonstrate our model in Washington, USA, but it is designed to run elsewhere with available data for risk planning using the Landlab.
Jordan M. Adams, Nicole M. Gasparini, Daniel E. J. Hobley, Gregory E. Tucker, Eric W. H. Hutton, Sai S. Nudurupati, and Erkan Istanbulluoglu
Geosci. Model Dev., 10, 1645–1663, https://doi.org/10.5194/gmd-10-1645-2017, https://doi.org/10.5194/gmd-10-1645-2017, 2017
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OverlandFlow is a 2-dimensional hydrology component contained within the Landlab modeling framework. It can be applied in both hydrology and geomorphology applications across real and synthetic landscape grids, for both short- and long-term events. This paper finds that this non-steady hydrology regime produces different landscape characteristics when compared to more traditional steady-state hydrology and geomorphology models, suggesting that hydrology regime can impact resulting morphologies.
Daniel E. J. Hobley, Jordan M. Adams, Sai Siddhartha Nudurupati, Eric W. H. Hutton, Nicole M. Gasparini, Erkan Istanbulluoglu, and Gregory E. Tucker
Earth Surf. Dynam., 5, 21–46, https://doi.org/10.5194/esurf-5-21-2017, https://doi.org/10.5194/esurf-5-21-2017, 2017
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Many geoscientists use computer models to understand changes in the Earth's system. However, typically each scientist will build their own model from scratch. This paper describes Landlab, a new piece of open-source software designed to simplify creation and use of models of the Earth's surface. It provides off-the-shelf tools to work with models more efficiently, with less duplication of effort. The paper explains and justifies how Landlab works, and describes some models built with it.
Joel P. L. Johnson
Earth Surf. Dynam., 4, 685–703, https://doi.org/10.5194/esurf-4-685-2016, https://doi.org/10.5194/esurf-4-685-2016, 2016
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Accurately predicting gravel transport rates in mountain rivers is difficult because of feedbacks with channel morphology. River bed surfaces evolve during floods, influencing transport rates. I propose that the threshold of gravel motion is a state variable for channel reach evolution. I develop a new model to predict how transport thresholds evolve as a function of transport rate, and then use laboratory flume experiments to calibrate and validate the model.
Related subject area
Physical: Geomorphology (including all aspects of fluvial, coastal, aeolian, hillslope and glacial geomorphology)
Investigating the celerity of propagation for small perturbations and dispersive sediment aggradation under a supercritical flow
Short communication: Multiscale topographic complexity analysis with pyTopoComplexity
Sub-surface processes and heat fluxes at coarse blocky Murtèl rock glacier (Engadine, eastern Swiss Alps): seasonal ice and convective cooling render rock glaciers climate-robust
Influence of alluvial slope on avulsion in river deltas
Surficial sediment remobilization by shear between sediment and water above tsunamigenic megathrust ruptures: experimental study
Haloturbation in the northern Atacama Desert revealed by a hidden subsurface network of calcium sulfate wedges
An evaluation of flow-routing algorithms for calculating contributing area on regular grids
Geometric constraints on tributary fluvial network junction angles
Effect of grain-sorting waves on alternate bar dynamics: Implications of the breakdown of the hydrograph boundary layer
Automatic detection of floating instream large wood in videos using deep learning
Investigating uncertainty and parameter sensitivity in bedform analysis by using a Monte Carlo approach
Geomorphic imprint of high-mountain floods: insights from the 2022 hydrological extreme across the upper Indus River catchment in the northwestern Himalayas
Short communication: Learning How Landscapes Evolve with Neural Operators
A numerical model for duricrust formation by water table fluctuations
Width evolution of channel belts as a random walk
Evidence of slow millennial cliff retreat rates using cosmogenic nuclides in coastal colluvium
Equilibrium distance from long-range dune interactions
Examination of analytical shear stress predictions for coastal dune evolution
Localised geomorphic response to channel-spanning leaky wooden dams
Post-fire evolution of ravel transport regimes in the Diablo Range, CA
Landscape response to tectonic deformation and cyclic climate change since ca. 800 ka in the southern central Andes
The Aare main overdeepening on the northern margin of the European Alps: basins, riegels, and slot canyons
Surface grain-size mapping of braided channels from SfM photogrammetry
A simple model for faceted topographies at normal faults based on an extended stream-power law
Multiple Equilibrium Configurations in River-Dominated Deltas
Testing floc settling velocity models in rivers and freshwater wetlands
River suspended-sand flux computation with uncertainty estimation using water samples and high-resolution ADCP measurements
Barchan swarm dynamics from a Two-Flank Agent-Based Model
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Acceleration of coastal-retreat rates for high-Arctic rock cliffs on Brøggerhalvøya, Svalbard, over the past decade
The impact of bedrock meander cutoffs on 50 kyr scale incision rates, San Juan River, Utah
Sediment aggradation rates for Himalayan Rivers revealed through SAR remote sensing
Spatiotemporal denudation rates of the Swabian Alb escarpment (Southwest Germany) dominated by base-level lowering and lithology
Use of simple analytical solutions in the calibration of Shallow Water Equations debris flow models
How water, temperature, and seismicity control the preconditioning of massive rock slope failure (Hochvogel)
Large structure simulation for landscape evolution models
Terrace formation linked to outburst floods at the Diexi palaeo-landslide dam, upper Minjiang River, eastern Tibetan Plateau
AI-Based Tracking of Fast-Moving Alpine Landforms Using High Frequency Monoscopic Time-Lapse Imagery
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Decadal-scale decay of landslide-derived fluvial suspended sediment after Typhoon Morakot
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A machine learning approach to the geomorphometric detection of ribbed moraines in Norway
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Riverine sediment response to deforestation in the Amazon basin
Hasan Eslami, Erfan Poursoleymanzadeh, Mojtaba Hiteh, Keivan Tavakoli, Melika Yavari Nia, Ehsan Zadehali, Reihaneh Zarrabi, and Alessio Radice
Earth Surf. Dynam., 13, 437–454, https://doi.org/10.5194/esurf-13-437-2025, https://doi.org/10.5194/esurf-13-437-2025, 2025
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A channel may be aggraded by overloaded sediment. In this study we realize an aggradation experiment and determine the celerity at which an aggradation wave, due to sediment overloading, migrates. We also investigate the celerity of small perturbations, as quantified by mathematical formulations. The celerities of the two kinds are correlated with each other. However, the celerity of small perturbations is larger than the other one, which is less than a few percent of the water velocity.
Larry Syu-Heng Lai, Adam M. Booth, Alison R. Duvall, and Erich Herzig
Earth Surf. Dynam., 13, 417–435, https://doi.org/10.5194/esurf-13-417-2025, https://doi.org/10.5194/esurf-13-417-2025, 2025
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pyTopoComplexity is an open-source Python tool for multiscale land surface complexity analysis. Applied to a landslide-affected area in Washington, USA, it accurately identified landform features at various scales, enhancing our understanding of landform recovery after disturbances. By integrating with Landlab’s landscape evolution simulations, the software allows researchers to explore how different processes drive the evolution of surface complexity in response to natural forces.
Dominik Amschwand, Jonas Wicky, Martin Scherler, Martin Hoelzle, Bernhard Krummenacher, Anna Haberkorn, Christian Kienholz, and Hansueli Gubler
Earth Surf. Dynam., 13, 365–401, https://doi.org/10.5194/esurf-13-365-2025, https://doi.org/10.5194/esurf-13-365-2025, 2025
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Rock glaciers are comparatively climate-robust permafrost landforms. We estimated the energy budget of the seasonally thawing active layer (AL) of Murtèl rock glacier (Swiss Alps) based on a novel sub-surface sensor array. In the coarse blocky AL, heat is transferred by thermal radiation and air convection. The ground heat flux is largely spent on melting seasonal ice in the AL. Convective cooling and the seasonal ice turnover make rock glaciers climate-robust and shield the permafrost beneath.
Octria A. Prasojo, Trevor B. Hoey, Amanda Owen, and Richard D. Williams
Earth Surf. Dynam., 13, 349–363, https://doi.org/10.5194/esurf-13-349-2025, https://doi.org/10.5194/esurf-13-349-2025, 2025
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Decades of delta avulsion (i.e. channel abrupt jump) studies have not resolved what the main controls of delta avulsion are. Using a computer model, integrated with field observation, analytical, and laboratory-made deltas, we found that the sediment load, which itself is controlled by the steepness of the river upstream of a delta, controls the timing of avulsion. We can now better understand the main cause of abrupt channel changes in deltas, a finding that aids flood risk management in river deltas.
Chloé Seibert, Cecilia McHugh, Chris Paola, Leonardo Seeber, and James Tucker
Earth Surf. Dynam., 13, 341–348, https://doi.org/10.5194/esurf-13-341-2025, https://doi.org/10.5194/esurf-13-341-2025, 2025
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We propose a new mechanism of co-seismic sediment entrainment induced by shear stress at the sediment–water interface during major subduction earthquakes rupturing to the trench. Physical experiments show that flow velocities consistent with long-period earthquake motions can entrain synthetic marine sediment, and high-frequency vertical shaking can enhance this mobilization. They validate the proposed entrainment mechanism, which opens new avenues for paleoseismology in deep-sea environments.
Aline Zinelabedin, Joel Mohren, Maria Wierzbicka-Wieczorek, Tibor Janos Dunai, Stefan Heinze, and Benedikt Ritter
Earth Surf. Dynam., 13, 257–276, https://doi.org/10.5194/esurf-13-257-2025, https://doi.org/10.5194/esurf-13-257-2025, 2025
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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.
Alexander B. Prescott, Jon D. Pelletier, Satya Chataut, and Sriram Ananthanarayan
Earth Surf. Dynam., 13, 239–256, https://doi.org/10.5194/esurf-13-239-2025, https://doi.org/10.5194/esurf-13-239-2025, 2025
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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.
Jon D. Pelletier, Robert G. Hayes, Olivia Hoch, Brendan Fenerty, and Luke A. McGuire
Earth Surf. Dynam., 13, 219–238, https://doi.org/10.5194/esurf-13-219-2025, https://doi.org/10.5194/esurf-13-219-2025, 2025
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We demonstrate that landscapes with more planar initial conditions tend to have lower mean junction angles. Geomorphic processes on alluvial piedmonts result in especially planar initial conditions, consistent with a correlation between junction angles and the presence/absence of Late Cenozoic alluvial deposits and the constraint imposed by the intersection of planar approximations to the topography upslope from tributary junctions. We caution against using junction angles to infer paleoclimate.
Soichi Tanabe and Toshiki Iwasaki
EGUsphere, https://doi.org/10.5194/egusphere-2025-103, https://doi.org/10.5194/egusphere-2025-103, 2025
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We try to understand how the sediment supply from the upstream river reach affect the downstream river morphology using a numerical model. If the supplied sediment is composed of variety of size class of particles, a small size bed wave that is composed of mainly fine particles (sorting wave) can propagate to downstream very long distance. However, presence of bars suppresses the effect of sorting wave greatly, and thus the sediment supply has limited role in the downstream river morphology.
Janbert Aarnink, Tom Beucler, Marceline Vuaridel, and Virginia Ruiz-Villanueva
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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This study presents a novel convolutional-neural-network approach for detecting instream large wood in rivers, addressing the need for flexible monitoring methods across diverse data sources. Using a database of 15 228 fully labelled images, the model achieved a weighted mean average precision of 67 %. Fine-tuning parameters and sampling techniques can improve performance by over 10 % in some cases, offering valuable insights into ecosystem management.
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.
Abhishek Kashyap, Kristen L. Cook, and Mukunda Dev Behera
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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Short-lived, high-magnitude flood events across high mountain regions leave substantial geomorphic imprints, which are frequently triggered by excess precipitation, glacial lake outbursts, and natural dam breaches. These catastrophic floods highlight the importance of understanding the complex interaction between climatic, hydrological, and geological forces in bedrock catchments. Extreme floods can have long-term geomorphic consequences on river morphology and fluvial processes.
Gareth G. Roberts
EGUsphere, https://doi.org/10.5194/egusphere-2025-307, https://doi.org/10.5194/egusphere-2025-307, 2025
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The use of new Artificial Intelligence (AI) techniques to learn how landscapes evolve is demonstrated. A few ‘snapshots' of an eroding landscape at different stages of its history provide enough information for AI to ascertain rules governing its evolution. Once the rules are known, predicting landscape evolution is extremely rapid and efficient, providing new tools to understand landscape change.
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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We have developed a new numerical model to represent the formation of duricrusts, which are hard mineral 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.
Jens M. Turowski, Fergus McNab, Aaron Bufe, and Stefanie Tofelde
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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Using a numerical model in 2D, we study how two identical dunes interact with each other when exposed to reversing winds. Depending on the distance between the dunes, they either repel or attract each other until they reach an equilibrium distance, which is controlled by the wind strength, wind reversal frequency, and dune size. This process is controlled by the modification of wind flow over dunes of various shapes, influencing the sediment transport downstream.
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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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.
Joshua M. Wolstenholme, Christopher J. Skinner, David J. Milan, Robert E. Thomas, and Daniel R. Parsons
EGUsphere, https://doi.org/10.5194/egusphere-2024-3001, https://doi.org/10.5194/egusphere-2024-3001, 2024
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Leaky wooden dams are a popular form of natural flood management used to slow the flow of water by increasing floodplain connectivity whilst decreasing connectivity along the river profile. By monitoring two leaky wooden dams in North Yorkshire, UK, we present the geomorphological response to their installation, highlighting that the structures significantly increase channel complexity in response to different river flow conditions.
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.
Loïs Ribet, Frédéric Liébault, Laurent Borgniet, Michaël Deschâtres, and Gabriel Melun
EGUsphere, https://doi.org/10.5194/egusphere-2024-3697, https://doi.org/10.5194/egusphere-2024-3697, 2024
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This work presents a protocol and a model to get the size of the pebbles in mountain rivers from Unmanned Aerial Vehicle images. A set of 12 rivers located in south-eastern France were photographed to build the model. The results show that the model has little error and should be usable for similar rivers. Grain-size of mountain rivers is an important parameter for environmental diagnostics by mapping the aquatic habitats and for flood management by estimating the pebbles fluxes during floods.
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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Faceted topographies are impressive footprints of active tectonics in geomorphology. This paper investigates the evolution of faceted topographies at normal faults and their interaction with a river network theoretically and numerically. As a main result beyond several relations for the geometry of facets, the horizontal displacement associated with normal faults is crucial for the dissection of initially polygonal facets into triangular facets bounded by almost parallel rivers.
Lorenzo Durante, Nicoletta Tambroni, and Michele Bolla Pittaluga
EGUsphere, https://doi.org/10.5194/egusphere-2024-3552, https://doi.org/10.5194/egusphere-2024-3552, 2024
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River deltas are dynamic areas where rivers meet the sea. This study examines delta configurations to guide balanced development and environmental health. Using the Po River Delta, we developed a model to understand how different delta parts interact and maintain balance. Our findings show that deltas can reach varied states of balance, with some areas more prone to shift. These insights support predictions of delta changes and better management strategies.
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.
Viktoria Kosmalla, Oliver Lojek, Jana Carus, Kara Keimer, Lukas Ahrenbeck, Björn Mehrtens, David Schürenkamp, Boris Schröder, and Nils Goseberg
EGUsphere, https://doi.org/10.5194/egusphere-2024-2688, https://doi.org/10.5194/egusphere-2024-2688, 2024
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This study analysed seasonal biomechanical traits of marram grass at two coastal dune sites using monthly field and lab data acquired 2022. Differences in density, leaf length, and flower stems were observed, which are unaffected by wind and deemed transferable. These findings enable surrogate model development for numerical and physical experiments alike, where live vegetation is impractical. Results address the knowledge gap how dune stability and erosion resistance are affected by vegetation.
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.
Jingqiu Huang and Hugh D. Sinclair
EGUsphere, https://doi.org/10.5194/egusphere-2024-2600, https://doi.org/10.5194/egusphere-2024-2600, 2024
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This study uses radar technology to track tiny changes in riverbeds elevation in Himalayan Rivers as they flow onto the Gangetic Plains. By analyzing data from 2016 to 2021, we found that sediment builds up in seasonally dry (ephemeral) rivers during monsoon seasons, while the surrounding floodplains is sinking. This research is important for understanding how these elevation changes affect flood risks in rapidly growing communities in Nepal and India. Our findings can improve flood management.
Mirjam Schaller, Daniel Peifer, Alexander B. Neely, Thomas Bernard, Christoph Glotzbach, Alexander R. Beer, and Todd A. Ehlers
EGUsphere, https://doi.org/10.5194/egusphere-2024-2729, https://doi.org/10.5194/egusphere-2024-2729, 2024
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This study reports chemical weathering, physical erosion, and total denudation rates from river load data in the Swabian Alb, Southwest Germany. Tributaries to the Neckar River draining to the North show higher rates than tributaries draining to the South into the Danube River causing a retreat of the Swabian Alb escarpment. Observations are discussed in the light of lithology, climate, and topography. The data are further compared to other rates over space and time as well as to global data.
Riccardo Bonomelli, Marco Pilotti, and Gabriele Farina
EGUsphere, https://doi.org/10.5194/egusphere-2024-2267, https://doi.org/10.5194/egusphere-2024-2267, 2024
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Debris flows are fundamental components of the hazard in mountain regions and numerical models must be used for the related risk computation. Most existing commercial software strongly conceptualizes the main characteristics of the flow, leading to an inevitable calibration process, that is time-consuming and difficult to accomplish. This contribution offers some physically based solutions to confine the calibration process and to better understand the implications of the selected choice.
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.
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.
Hanne Hendrickx, Xabier Blanch, Melanie Elias, Reynald Delaloye, and Anette Eltner
EGUsphere, https://doi.org/10.5194/egusphere-2024-2570, https://doi.org/10.5194/egusphere-2024-2570, 2024
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This study introduces a novel AI-based method to track and analyse the movement of rock glaciers and landslides, key indicators of permafrost dynamics in high mountain regions. Using time-lapse images, our approach provides detailed velocity data, revealing patterns that traditional methods miss. This cost-effective tool enhances our ability to monitor geohazards, offering insights into climate change impacts on permafrost and improving safety in alpine areas.
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.
Cited articles
Agisoft PhotoScan Professional: (Version 1.4.5) (Software), Agisoft [code],
http://www.agisoft.com/downloads/installer, 2018.
Allen, J. R.: Morphodynamics of Holocene salt marshes: a review sketch from
the Atlantic and Southern North Sea coasts of Europe, Quaternary Sci.
Rev., 16, 939–975, 1997.
Anderson, S.: y05emite-sam/data_from_last_chance_canyon: data, Zenodo [data set], https://doi.org/10.5281/zenodo.8370596, 2023.
Bell, F. G.: Engineering Geology and Construction, Elsevier, https://books.google.com.tr/books?hl=en&lr=&id=m1uSzpaD_V8C&oi=fnd&pg=PR9&dq=Bell,+F.+G.+sandstone++60+%25+quartz&ots=rpJxkVWXYu&sig=xQSq7yojrPLD8zqwt3Ai50_7Dn0&redir_esc=y#v=onepage&q&f=false (last access: 5 October 2023), 2005.
Brocard, G. Y. and van der Beek, P. A.: Influence of incision rate, rock
strength, and bedload supply on bedrock river gradients and valley-flat
widths: Field-based evidence and calibrations from western Alpine rivers
(southeast France), in: Tectonics, Climate, and Landscape Evol., edited by: Willett, S. D., Hovius, N., Brandon, M. T., and Fisher,
D., GSA Special Paper 398,
101–126, https://doi.org/10.1130/2006.2398(07), 2006.
Bursztyn, N., Pederson, J. L., Tressler, C., Mackley, R. D., and Mitchell,
K. J.: Rock strength along a fluvial transect of the Colorado Plateau –
quantifying a fundamental control on geomorphology, EPS Letters, 429,
90–100, https://doi.org/10.1016/j.epsl.2015.07.042, 2015.
Chapin, C. E., Cather, S. M., and Keller, G. R.: Tectonic setting of the
axial basins of the northern and central Rio Grande rift, Special
Papers – GSA, 5–5, https://books.google.co.ke/books?hl=en&lr=&id=ybECAQAAQBAJ&oi=fnd&pg=PA5&dq=Tectonic+setting+10+of+the+axial+basins+of+the+northern+and+central+Rio+Grande+rift&ots=Ru1VGg1uOX&sig=7CoXBM4ueT81r8y1x-zFxvqAnYk&redir_esc=y#v=onepage&q=Tectonic%20setting%2010%20of%20the%20axial%20basins%20of%20the%20northern%20and%20central%20Rio%20Grande%20rift&f=false (last access: 5 October 2023), 1994.
Chilton, K. D. and Spotila, J. A.: Preservation of Valley and Ridge
topography via delivery of resistant, ridge-sourced boulders to hillslopes
and channels, Southern Appalachian Mountains, USA, Geomorphology, 365, 107263,
https://doi.org/10.1016/j.geomorph.2020.107263, 2020.
Chilton, K. D. and Spotila, J. A.: Uncovering the Controls on Fluvial
Bedrock Erodibility and Knickpoint Expression: A High-Resolution Comparison
of Bedrock Properties Between Knickpoints and Non-Knickpoint
Reaches, J. Geophys. Res.-Earth, 127, e2021JF006511, https://doi.org/10.1029/2021JF006511, 2022.
Darling, A. and Whipple, K.: Geomorphic constraints on the age of the
western Grand Canyon, Geosphere, 11, 958–976, https://doi.org/10.1130/GES01131.1,
2015.
Decker, D. D., Polyak, V. J., Asmerom, Y., and Lachniet, M. S.: U–Pb dating
of cave spar: a new shallow crust landscape evolution tool, Tectonics,
37, 208–223, 2018.
DiBiase, R. A., Rossi, M. W., and Neely, A. B.: Fracture density and grain
size controls on the relief structure of bedrock landscapes, Geology, 46,
399–402, https://doi.org/10.1130/G40006.1, 2018.
Duvall, A., Kirby, E., and Burbank, D.: Tectonic and lithologic controls on
bedrock channel profiles and processes in coastal California, J.
Geophys. Res.-Earth, 109, F03002, https://doi.org/10.1029/2003JF000086, 2004.
Forte, A. M., Yanites, B. J., and Whipple, K. X.: Complexities of landscape
evolution during incision through layered stratigraphy with contrasts in
rock strength, Earth Surf. Proc. Land., 41, 1736–1757,
https://doi.org/10.1002/esp.3947, 2016.
Finnegan, N. J., Klier, R. A., Johnstone, S., Pfeiffer, A. M., and Johnson,
K.: Field evidence for the control of grain size and sediment supply on
steady-state bedrock river channel slopes in a tectonically active setting,
Earth Surf. Proc. Land., 42, 2338–2349, 2017.
Gasparini, N. M. and Brandon, M. T.: A generalized power law approximation
for fluvial incision of bedrock channels, J. Geophys. Res.-Earth, 116, F02020, https://doi.org/10.1029/2009JF001655, 2011.
Hack, J. T.: Studies of longitudinal stream profiles in Virginia and
Maryland, US Government Printing Office, Vol. 294, US Government Printing Office, https://books.google.co.ke/books?hl=en&lr=&id=BMHMKaKYdl0C&oi=fnd&pg=PA47&dq=:+Studies+of+longitudinal+stream+profiles+in+Virginia+and+Maryland,&ots=waYis_Thas&sig=a-ZBqu9_qeGLiBY2pJ1e89TmhDU&redir_esc=y#v=onepage&q=%3A%20Studies%20of%20longitudinal%20stream%20profiles%20in%20Virginia%20and%20Maryland%2C&f=false (last access: 29 September 2023), 1957.
Harel, M.-A., Mudd, S. M., and Attal, M.: Global analysis of the stream
power law parameters based on worldwide 10Be denudation rates, Geomorphology,
268, 184–196, https://doi.org/10.1016/j.geomorph.2016.05.035, 2016.
Healy, D.,. Rizzo, R. E., Cornwell, D. G., Farrell, N. J. C., Watkins, H., Timms, N. E., Gomez-Rivas, E., and Smith, M.: FracPaQ: A MATLABTM toolbox for the
quantification of fracture patterns, J. Struct. Geol., 95, 1–16,
2017.
Hill, C. A.: Geology of Carlsbad Cavern and other caves in the Guadalupe Mountains,
New Mexico and Texas, New Mexico Bur. Mines Min. Resour. Bull., 117, 1–150, 1987.
Hill, C. A.: Geology of the Guadalupe Mountains: An overview of recent
ideas, Caves and karst of southeastern New Mexico: Guidebook, 57th Field
Conference, New Mexico Geological Society, Guidebook, 57th Field Conference, Albuquerque,
145–150, https://nmgs.nmt.edu/publications/guidebooks/downloads/57/57_p0145_p0150.pdf (last access: 5 October 2023), 2006.
Hill, C. A.: Overview of the geologic history of cave
development in the Guadalupe Mountains, New Mexico, J. Cave
Karst Stud., 62, 60–71, 2000.
Hilley, G. E. and Arrowsmith, J. R.: Geomorphic response to uplift along
the Dragon's Back pressure ridge, Carrizo Plain, California, Geology, 36,
367–370, 2008.
Hoffman, L. L.: Spatial variability of erosion patterns along the eastern
margin of the Rio Grande Rift, Illinois State University, https://ir.library.illinoisstate.edu/cgi/viewcontent.cgi?article=1184&context=etd (last access: 5 October 2023), 2014.
Howard, A. and Dolan, R.: Geomorphology of the Colorado River in the Grand
Canyon, J. Geol., 89, 269–298, 1981.
Howard, A. D.: A detachment-limited model of drainage basin evolution, Water
Resour. Res., 30, 2261–2285, 1994.
Hurst, M. D., Mudd, S. M., Yoo, K., Attal, M., and Walcott, R.: Influence of
lithology on hillslope morphology and response to tectonic forcing in the
northern Sierra Nevada of California, J. Geophys. Res.-Earth, 118, 832–851, 2013.
Jansen, J. D., Codilean, A. T., Bishop, P., and Hoey, T. B.: Scale
dependence of lithological control on topography: Bedrock channel geometry
and catchment morphometry in western Scotland, J. Geol., 118,
223–246, 2010.
Johnson, J. P. L., Whipple, K. X., Sklar, L. S., and Hanks, T. C.: Transport
slopes, sediment cover, and bedrock channel incision in the Henry Mountains,
Utah, J. Geophys. Res.-Earth, 114, F02014,
https://doi.org/10.1029/2007JF000862, 2009.
Johnstone, S. A. and Hilley, G. E.: Lithologic control on the form of
soil-mantled hillslopes, Geology, 43, 83–86, 2015.
Katz, O., Reches, Z., and Roegiers, J.-C.: Evaluation of mechanical rock
properties using a Schmidt Hammer, Int. J. Rock Mech.
Min., 37, 723–728, 2000.
Keen-Zebert, A., Hudson, M. R., Shepherd, S. L., and Thaler, E. A.: The
effect of lithology on valley width, terrace distribution, and bedload
provenance in a tectonically stable catchment with flat-lying stratigraphy,
Earth Surf. Proc. Land., 42, 1573–1587, 2017.
Kerans, C., Zahm, C., Garcia-Fresca, B., and Harris, P. M.: Guadalupe
Mountains, West Texas and New Mexico: Key excursions, AAPG Bull., 101,
465–474, 2017.
Kirby, E. and Whipple, K. X.: Expression of active tectonics in erosional
landscapes, J. Struct. Geol., 44, 54–75, 2012.
Lai, L. S.-H., Roering, J. J., Finnegan, N. J., Dorsey, R. J., and Yen,
J.-Y.: Coarse sediment supply sets the slope of bedrock channels in rapidly
uplifting terrain: Field and topographic evidence from eastern Taiwan, Earth
Surf. Proc. Land., 46, 2671–2689, https://doi.org/10.1002/esp.5200, 2021.
Lague, D., Hovius, N., and Davy, P.: Discharge, discharge variability, and
the bedrock channel profile, J. Geophys. Res.-Earth, 110, F04006, https://doi.org/10.1029/2004JF000259,
2005.
Miller, K. L., Szabó, T., Jerolmack, D. J., and Domokos, G.: Quantifying
the significance of abrasion and selective transport for downstream fluvial
grain size evolution, J. Geophys. Res.-Earth, 119, 2412–2429,
https://doi.org/10.1002/2014JF003156, 2014.
Montgomery, D. R. and Gran, K. B.: Downstream variations in the width of
bedrock channels, Water Resour. Res., 37, 1841–1846,
https://doi.org/10.1029/2000WR900393, 2001.
Mueller-Hagmann, M., Albayrak, I., Auel, C., and Boes, R. M.: Field
investigation on 256 hydroabrasion in high-speed sediment-laden flows at
sediment bypass tunnels, Water, 12, 469, https://doi.org/10.3390/w12020469, 2020.
Murphy, B., Johnson, J., Gasparini, N., and Sklar, L.: Chemical weathering
as a mechanism for the climatic control of bedrock river incision, Nature,
532, 223–227, https://doi.org/10.1038/nature17449, 2016.
National Park Service Resources Inventory Program Lakewood Colorado: Digital
geologic map of Guadalupe Mountains National Park and vicinity, Texas (NPS,
GRD, GRE, GUMO), https://catalog.data.gov/dataset/digital-geologic-gis-map-of-guadalupe-mountains-national-park-and-vicinity-texas-nps-grd-g (last access: 5 October 2023), 2007.
Niedzielski, T., Migoń, P., and Placek, A.: A minimum sample size
required from Schmidt hammer measurements, Earth Surf. Proc. Land.,
34, 1713–1725, 2009.
Perne, M., Covington, M. D., Thaler, E. A., and Myre, J. M.: Steady state, erosional continuity, and the topography of landscapes developed in layered rocks, Earth Surf. Dynam., 5, 85–100, https://doi.org/10.5194/esurf-5-85-2017, 2017.
Perron, J. T. and Royden, L.: An integral approach to bedrock river profile
analysis, Earth Surf. Proc. Land., 38, 570–576, 2013.
Phelps, R. M., Kerans, C., Scott, S. Z., Janson, X., and Bellian, J. A.:
Three-dimensional modelling and sequence stratigraphy of a carbonate
ramp-to-shelf transition, Permian Upper San Andres Formation, Sedimentology,
55, 1777–1813, 2008.
PRISM Climate Group: 30-yr Normal Precipitation: Annual,
Period 1991–2020, Oregon State University,
https://prism.oregonstate.edu (last access: 8 March 2023), 2022.
Raming, L. W. and Whipple, K. X.: When knickzones limit upstream
transmission of base-level fall: An example from Kaua'i, Hawai'i, Geology, 50, 1382–1386, 2022.
Ricketts, J. W., Karlstrom, K. E., Priewisch, A., Crossey, L. J., Polyak, V.
J., and Asmerom, Y.: Quaternary extension in the Rio Grande rift at elevated
strain rates recorded in travertine deposits, central New Mexico,
Lithosphere, 6, 3–16, 2014.
Scharf, T. E., Codilean, A. T., De Wit, M., Jansen, J. D., and Kubik, P. W.:
Strong rocks sustain ancient postorogenic topography in southern Africa,
Geology, 41, 331–334, 2013.
Scholle, P. A., Ulmer, D. S., and Melim, L. A.: Late-stage calcites in the
Permian Capitan Formation and its equivalents, Delaware Basin margin, west
Texas and New Mexico: evidence for replacement of precursor evaporites,
Sedimentology, 39, 207–234, 1992.
Schwanghart, W. and Scherler, D.: Short Communication: TopoToolbox 2 – MATLAB-based software for topographic analysis and modeling in Earth surface sciences, Earth Surf. Dynam., 2, 1–7, https://doi.org/10.5194/esurf-2-1-2014, 2014.
Scott, D. N. and Wohl, E. E.: Bedrock fracture influences on geomorphic
process and form across process domains and scales, Earth Surf. Proc.
Land., 44, 27–45, https://doi.org/10.1002/esp.4473, 2019.
Selby, M. J.: Rock mass strength and the form of some inselbergs in the
central Namib Desert, Earth Surf. Proc. Land., 7, 489–497, 1982.
Shobe, C. M., Tucker, G. E., and Anderson, R. S.: Hillslope-derived blocks
retard river incision, Geophys. Res. Lett., 43, 5070–5078,
https://doi.org/10.1002/2016GL069262, 2016.
Shobe, C. M., Bennett, G. L., Tucker, G. E., Roback, K., Miller, S. R., and
Roering, J. J.: Boulders as a lithologic control on river and landscape
response to tectonic forcing at the Mendocino triple junction, GSA
Bulletin, 133, 647–662, 2021a.
Shobe, C. M., Turowski, J. M., Nativ, R., Glade, R. C., Bennett, G. L., and
Dini, B.: The role of infrequently mobile boulders in modulating landscape
evolution and geomorphic hazards, Earth-Sci. Rev., 220, 103717, https://doi.org/10.1016/j.earscirev.2021.103717, 2021b.
Sklar, L. S. and Dietrich, W. E.: Sediment and rock strength controls on
river incision into bedrock, Geology, 29, 1087–1090, 2001.
Sklar, L. S. and Dietrich, W. E.: A mechanistic model for river incision
into bedrock by saltating bed load, Water Resour. Res., 40, W06301, https://doi.org/10.1029/2003WR002496, 2004.
Sklar, L. S., Riebe, C. S., Marshall, J. A., Genetti, J., Leclere, S.,
Lukens, C. L., and Merces, V.: The problem of predicting the size
distribution of sediment supplied by hillslopes to rivers, Geomorphology, 277,
31–49, 2017.
Spotila, J. A., Moskey, K. A., and Prince, P. S.: Geologic controls on
bedrock channel width in large, slowly eroding catchments: Case study of the
New River in eastern North America, Geomorphology, 230, 51–63,
https://doi.org/10.1016/j.geomorph.2014.11.004, 2015.
Strahler, A. N.: Quantitative analysis of watershed geomorphology, EOS,
Transactions American Geophys. Union, 38, 913–920, 1957.
Stock, J. D. and Montgomery, D. R.: Geologic constraints on bedrock river
incision using the stream power law, J. Geophys. Res.-Sol.
Ea., 104, 4983–4993, 1999.
Thaler, E. A. and Covington, M. D.: The influence of sandstone caprock
material on bedrock channel steepness within a tectonically passive setting:
Buffalo National River Basin, Arkansas, USA, J. Geophys. Res.-Earth, 121, 1635–1650, https://doi.org/10.1002/2015JF003771, 2016.
Tranel, L. M. and Happel, A. A.: Evaluating escarpment evolution and
bedrock erosion rates in the western Guadalupe Mountains, West Texas and New
Mexico, Geomorphology, 368, 107335, https://doi.org/10.1016/j.geomorph.2020.107335, 2020.
USGS: 1/3rd arc-second digital elevation models (DEMs), USGS
National Map 3DEP downloadable data collection, https://data.usgs.gov/datacatalog/data/USGS:35f9c4d4-b113-4c8d-8691-47c428c29a5b (last access: 5 October 2023), 2017.
Verdian, J. P., Sklar, L. S., Riebe, C. S., and Moore, J. R.: Sediment size on talus slopes correlates with fracture spacing on bedrock cliffs: implications for predicting initial sediment size distributions on hillslopes, Earth Surf. Dynam., 9, 1073–1090, https://doi.org/10.5194/esurf-9-1073-2021, 2021.
Weissel, J. K. and Seidl, M. A.: Influence of rock strength properties on
escarpment retreat across passive continental margins, Geology, 25,
631–634, 1997.
Whipple, K. X. and Tucker, G. E.: Dynamics of the stream-power river
incision model: Implications for height limits of mountain ranges, landscape
response timescales, and research needs, J. Geophys. Res.-Sol.
Ea., 104, 17661–17674, https://doi.org/10.1029/1999JB900120, 1999.
Willett, S. D., McCoy, S. W., Perron, J. T., Goren, L., and Chen, C. Y.:
Dynamic reorganization of river basins, Science, 343, 1248765, https://doi.org/10.1126/science.1248765, 2014.
Wobus, C., Whipple, K. X., Kirby, E., Snyder, N., Johnson, J., Spyropolou,
K., Crosby, B., and Sheehan, D.: Tectonics from topography: Procedures,
promise, and pitfalls, in: Tectonics, Climate, and Landscape Evolution, GSA,
https://doi.org/10.1130/2006.2398(04), 2006.
Wohl, E. E., Greenbaum, N., Schick, A. P., and Baker, V. R.: Controls on
Bedrock Channel Incision Along Nahal Paran, Israel, Earth Surf. Proc.
Land., 19, 1–13, https://doi.org/10.1002/esp.3290190102, 1994.
Wolpert, J. A. and Forte, A. M.: Response of transient rock uplift and base
level knickpoints to erosional efficiency contrasts in bedrock
streams, Earth Surf. Proc. Land., 46, 2092–2109, 2021.
Yanites, B. J., Becker, J. K., Madritsch, H., Schnellmann, M., and Ehlers,
T. A.: Lithologic effects on landscape response to base level changes: a
modeling study in the context of the Eastern Jura Mountains, Switzerland,
J. Geophys. Res.-Earth, 122, 2196–2222, 2017.
Short summary
We measured rock strength and amount of fracturing in the two different rock types, sandstones and carbonates, in Last Chance Canyon, New Mexico, USA. Where there is more carbonate bedrock, hills and channels steepen in Last Chance Canyon. This is because the carbonate-type bedrock tends to be more thickly bedded, is less fractured, and is stronger. The carbonate bedrock produces larger boulders than the sandstone bedrock, which can protect the more fractured sandstone bedrock from erosion.
We measured rock strength and amount of fracturing in the two different rock types, sandstones...
