Articles | Volume 12, issue 5
https://doi.org/10.5194/esurf-12-1071-2024
© Author(s) 2024. 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-12-1071-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
20 Sep 2024
Research article |
| 20 Sep 2024
| 20 Sep 2024
The impact of bedrock meander cutoffs on 50 kyr scale incision rates, San Juan River, Utah
Aaron T. Steelquist
CORRESPONDING AUTHOR
Department of Geological Sciences, Stanford University, 450 Jane Stanford Way, Building 320, Stanford, California 94305, USA
Gustav B. Seixas
Skagit River System Cooperative, La Conner, Washington 98257, USA
Mary L. Gillam
Colorado Geological Survey, Colorado School of Mines, Golden, Colorado 80401, USA
Sourav Saha
Kentucky Geological Survey, University of Kentucky, Lexington, Kentucky 40506, USA
Seulgi Moon
Department of Earth, Planetary, and Space Sciences, University of California Los Angeles, Los Angeles, California 90095, USA
George E. Hilley
Department of Geological Sciences, Stanford University, 450 Jane Stanford Way, Building 320, Stanford, California 94305, USA
Related subject area
Physical: Geomorphology (including all aspects of fluvial, coastal, aeolian, hillslope and glacial geomorphology)
Acceleration of coastal-retreat rates for high-Arctic rock cliffs on Brøggerhalvøya, Svalbard, over the past decade
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
Pliocene shorelines and the epeirogenic motion of continental margins: a target dataset for dynamic topography models
Decadal-scale decay of landslide-derived fluvial suspended sediment after Typhoon Morakot
Role of the forcing sources in morphodynamic modelling of an embayed beach
A machine learning approach to the geomorphometric detection of ribbed moraines in Norway
Stream hydrology controls on ice cliff evolution and survival on debris-covered glaciers
Time-varying drainage basin development and erosion on volcanic edifices
Geomorphic risk maps for river migration using probabilistic modeling – a framework
Evolution of submarine canyons and hanging-wall fans: insights from geomorphic experiments and morphodynamic models
Riverine sediment response to deforestation in the Amazon basin
Physical modeling of ice-sheet-induced salt movements using the example of northern Germany
Downstream rounding rate of pebbles in the Himalaya
A physics-based model for fluvial valley width
Implications for the resilience of modern coastal systems derived from mesoscale barrier dynamics at Fire Island, New York
Quantifying the migration rate of drainage divides from high-resolution topographic data
Validating floc settling velocity models in rivers and freshwater wetlands
Long-term monitoring (1953–2019) of geomorphologically active sections of Little Ice Age lateral moraines in the context of changing meteorological conditions
Coevolving edge rounding and shape of glacial erratics: the case of Shap granite, UK
A simple model for faceted topographies at normal faults based on an extended stream-power law
Geomorphic indices for unveiling fault segmentation and tectono-geomorphic evolution with insights into the impact of inherited topography, Ulsan Fault Zone, Korea
Dimensionless argument: a narrow grain size range near 2 mm plays a special role in river sediment transport and morphodynamics
Path length and sediment transport estimation from DEMs of difference: a signal processing approach
Influence of cohesive clay on wave–current ripple dynamics captured in a 3D phase diagram
Statistical characterization of erosion and sediment transport mechanics in shallow tidal environments – Part 1: Erosion dynamics
Statistical characterization of erosion and sediment transport mechanics in shallow tidal environments – Part 2: Suspended sediment dynamics
Geomorphological and hydrological controls on sediment export in earthquake-affected catchments in the Nepal Himalaya
Optimization of passive acoustic bedload monitoring in rivers by signal inversion
River suspended-sand flux computation with uncertainty estimation, using water samples and high-resolution ADCP measurements
Stochastic properties of coastal flooding events – Part 2: Probabilistic analysis
Field monitoring of pore water pressure in fully and partly saturated debris flows at Ohya landslide scar, Japan
Analysis of autogenic bifurcation processes resulting in river avulsion
Bedload transport fluctuations, flow conditions, and disequilibrium ratio at the Swiss Erlenbach stream: results from 27 years of high-resolution temporal measurements
Stochastic properties of coastal flooding events – Part 1: convolutional-neural-network-based semantic segmentation for water detection
Coexistence of two dune scales in a lowland river
Alpine hillslope failure in the western US: insights from the Chaos Canyon landslide, Rocky Mountain National Park, USA
Barchan swarm dynamics from a Two-Flank Agent-Based Model
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On the use of convolutional deep learning to predict shoreline change
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Automated riverbed composition analysis using deep learning on underwater images
Marsh-induced backwater: the influence of non-fluvial sedimentation on a delta's channel morphology and kinematics
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Geotechnical controls on erodibility in fluvial impact erosion
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.
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.
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.
Prakash Pokhrel, Mikael Attal, Hugh D. Sinclair, Simon M. Mudd, and Mark Naylor
Earth Surf. Dynam., 12, 515–536, https://doi.org/10.5194/esurf-12-515-2024, https://doi.org/10.5194/esurf-12-515-2024, 2024
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Pebbles become increasingly rounded during downstream transport in rivers due to abrasion. This study quantifies pebble roundness along the length of two Himalayan rivers. We demonstrate that roundness increases with downstream distance and that the rates are dependent on rock type. We apply this to reconstructing travel distances and hence the size of ancient Himalaya. Results show that the ancient river network was larger than the modern one, indicating that there has been river capture.
Jens Martin Turowski, Aaron Bufe, and Stefanie Tofelde
Earth Surf. Dynam., 12, 493–514, https://doi.org/10.5194/esurf-12-493-2024, https://doi.org/10.5194/esurf-12-493-2024, 2024
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Fluvial valleys are ubiquitous landforms, and understanding their formation and evolution affects a wide range of disciplines from archaeology and geology to fish biology. Here, we develop a model to predict the width of fluvial valleys for a wide range of geographic conditions. In the model, fluvial valley width is controlled by the two competing factors of lateral channel mobility and uplift. The model complies with available data and yields a broad range of quantitative predictions.
Daniel J. Ciarletta, Jennifer L. Miselis, Julie C. Bernier, and Arnell S. Forde
Earth Surf. Dynam., 12, 449–475, https://doi.org/10.5194/esurf-12-449-2024, https://doi.org/10.5194/esurf-12-449-2024, 2024
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We reconstructed the evolution of Fire Island, a barrier island in New York, USA, to identify drivers of landscape change. Results reveal Fire Island was once divided into multiple inlet-separated islands with distinct features. Later, inlets closed, and Fire Island’s landscape became more uniform as human activities intensified. The island is now less mobile and less likely to resist and recover from storm impacts and sea level rise. This vulnerability may exist for other stabilized barriers.
Chao Zhou, Xibin Tan, Yiduo Liu, and Feng Shi
Earth Surf. Dynam., 12, 433–448, https://doi.org/10.5194/esurf-12-433-2024, https://doi.org/10.5194/esurf-12-433-2024, 2024
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The drainage-divide stability provides new insights into both the river network evolution and the tectonic and/or climatic changes. Several methods have been proposed to determine the direction of drainage-divide migration. However, how to quantify the migration rate of drainage divides remains challenging. In this paper, we propose a new method to calculate the migration rate of drainage divides from high-resolution topographic data.
Justin A. Nghiem, Gen K. Li, Joshua P. Harringmeyer, Gerard Salter, Cédric G. Fichot, Luca Cortese, and Michael P. Lamb
EGUsphere, https://doi.org/10.5194/egusphere-2024-524, https://doi.org/10.5194/egusphere-2024-524, 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. Data from the Wax Lake Delta verify a semi-empirical model relying on turbulence and geochemical factors. We showed that the representative grain diameter within flocs relies on floc structure and that floc internal flow follows a model in which flocs consist of permeable grain clusters, thus improving a physics-based settling velocity model.
Moritz Altmann, Madlene Pfeiffer, Florian Haas, Jakob Rom, Fabian Fleischer, Tobias Heckmann, Livia Piermattei, Michael Wimmer, Lukas Braun, Manuel Stark, Sarah Betz-Nutz, and Michael Becht
Earth Surf. Dynam., 12, 399–431, https://doi.org/10.5194/esurf-12-399-2024, https://doi.org/10.5194/esurf-12-399-2024, 2024
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We show a long-term erosion monitoring of several sections on Little Ice Age lateral moraines with derived sediment yield from historical and current digital elevation modelling (DEM)-based differences. The first study period shows a clearly higher range of variability of sediment yield within the sites than the later periods. In most cases, a decreasing trend of geomorphic activity was observed.
Paul A. Carling
Earth Surf. Dynam., 12, 381–397, https://doi.org/10.5194/esurf-12-381-2024, https://doi.org/10.5194/esurf-12-381-2024, 2024
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Edge rounding in Shap granite glacial erratics is an irregular function of distance from the source outcrop in northern England, UK. Block shape is conservative, evolving according to block fracture mechanics – stochastic and silver ratio models – towards either of two attractor states. Progressive reduction in size occurs for blocks transported at the sole of the ice mass where the blocks are subject to compressive and tensile forces of the ice acting against a bedrock or till surface.
Stefan Hergarten
EGUsphere, https://doi.org/10.5194/egusphere-2024-336, https://doi.org/10.5194/egusphere-2024-336, 2024
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Faceted topographies are impressing footprints of active tectonics in geomorphology. This paper investigates the evolution of faceted topographies at normal faults and its interaction with the river network theoretically and numerically. As a main result beyond several relations for the the geometry of facets, the horizontal displacement associated to normal faults is crucial for the dissection of initially polygonal facets into triangular facets bounded by almost parallel rivers.
Cho-Hee Lee, Yeong Bae Seong, John Weber, Sangmin Ha, Dong-Eun Kim, and Byung Yong Yu
EGUsphere, https://doi.org/10.5194/egusphere-2024-198, https://doi.org/10.5194/egusphere-2024-198, 2024
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Geomorphic indices were used to understand topographic changes in response to tectonic activity. We applied indices to evaluate the relative tectonic intensity of Ulsan Fault Zone, one of the most active fault zones in Korea. We divided the UFZ into five segments based on spatial variation in intensity. We modelled the landscape evolution of study area and interpreted tectono-geomorphic history that the northern part of the UFZ experienced asymmetric uplift, while the southern part did not.
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.
Emma L. S. Graf, Hugh D. Sinclair, Mikaël Attal, Boris Gailleton, Basanta Raj Adhikari, and Bishnu Raj Baral
Earth Surf. Dynam., 12, 135–161, https://doi.org/10.5194/esurf-12-135-2024, https://doi.org/10.5194/esurf-12-135-2024, 2024
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Using satellite images, we show that, unlike other examples of earthquake-affected rivers, the rivers of central Nepal experienced little increase in sedimentation following the 2015 Gorkha earthquake. Instead, a catastrophic flood occurred in 2021 that buried towns and agricultural land under up to 10 m of sediment. We show that intense storms remobilised glacial sediment from high elevations causing much a greater impact than flushing of earthquake-induced landslides.
Mohamad Nasr, Adele Johannot, Thomas Geay, Sebastien Zanker, Jules Le Guern, and Alain Recking
Earth Surf. Dynam., 12, 117–134, https://doi.org/10.5194/esurf-12-117-2024, https://doi.org/10.5194/esurf-12-117-2024, 2024
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Hydrophones are used to monitor sediment transport in the river by listening to the acoustic noise generated by particle impacts on the riverbed. However, this acoustic noise is modified by the river flow and can cause misleading information about sediment transport. This article proposes a model that corrects the measured acoustic signal. Testing the model showed that the corrected signal is better correlated with bedload flux in the river.
Jessica Laible, Guillaume Dramais, Jérôme Le Coz, Blaise Calmel, Benoît Camenen, David J. Topping, William Santini, Gilles Pierrefeu, and François Lauters
EGUsphere, https://doi.org/10.5194/egusphere-2023-2348, https://doi.org/10.5194/egusphere-2023-2348, 2024
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Suspended-sand fluxes in rivers vary with time and space, complicating their measurement. The proposed method captures the vertical and lateral variations of suspended-sand concentration throughout a river cross section. It merges water samples taken at various positions throughout the cross section with high-resolution acoustic velocity and discharge measurements. The method also determines the sand flux uncertainty and can be easily applied to other sites using the available open-source code.
Byungho Kang, Rusty A. Feagin, Thomas Huff, and Orencio Durán Vinent
Earth Surf. Dynam., 12, 105–115, https://doi.org/10.5194/esurf-12-105-2024, https://doi.org/10.5194/esurf-12-105-2024, 2024
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We provide a detailed characterization of the frequency, intensity and duration of flooding events at a site along the Texas coast. Our analysis demonstrates the suitability of relatively simple wave run-up models to estimate the frequency and intensity of coastal flooding. Our results validate and expand a probabilistic model of coastal flooding driven by wave run-up that can then be used in coastal risk management in response to sea level rise.
Shunsuke Oya, Fumitoshi Imaizumi, and Shoki Takayama
Earth Surf. Dynam., 12, 67–86, https://doi.org/10.5194/esurf-12-67-2024, https://doi.org/10.5194/esurf-12-67-2024, 2024
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The monitoring of pore water pressure in fully and partly saturated debris flows was performed at Ohya landslide scar, central Japan. The pore water pressure in some partly saturated flows greatly exceeded the hydrostatic pressure. The depth gradient of the pore water pressure in the lower part of the flow was generally higher than the upper part of the flow. We conclude that excess pore water pressure is present in many debris flow surges and is an important mechanism in debris flow behavior.
Gabriele Barile, Marco Redolfi, and Marco Tubino
Earth Surf. Dynam., 12, 87–103, https://doi.org/10.5194/esurf-12-87-2024, https://doi.org/10.5194/esurf-12-87-2024, 2024
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River bifurcations often show the closure of one branch (avulsion), whose causes are still poorly understood. Our model shows that when one branch stops transporting sediments, the other considerably erodes and captures much more flow, resulting in a self-sustaining process. This phenomenon intensifies when increasing the length of the branches, eventually leading to branch closure. This work may help to understand when avulsions occur and thus to design sustainable river restoration projects.
Dieter Rickenmann
Earth Surf. Dynam., 12, 11–34, https://doi.org/10.5194/esurf-12-11-2024, https://doi.org/10.5194/esurf-12-11-2024, 2024
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Field measurements of the bedload flux with a high temporal resolution in a steep mountain stream were used to analyse the transport fluctuations as a function of the flow conditions. The disequilibrium ratio, a proxy for the solid particle concentration in the flow, was found to influence the sediment transport behaviour, and above-average disequilibrium conditions – associated with a larger sediment availability on the streambed – substantially affect subsequent transport conditions.
Byungho Kang, Rusty A. Feagin, Thomas Huff, and Orencio Durán Vinent
Earth Surf. Dynam., 12, 1–10, https://doi.org/10.5194/esurf-12-1-2024, https://doi.org/10.5194/esurf-12-1-2024, 2024
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Coastal flooding can cause significant damage to coastal ecosystems, infrastructure, and communities and is expected to increase in frequency with the acceleration of sea level rise. In order to respond to it, it is crucial to measure and model their frequency and intensity. Here, we show deep-learning techniques can be successfully used to automatically detect flooding events from complex coastal imagery, opening the way to real-time monitoring and data acquisition for model development.
Judith Y. Zomer, Bart Vermeulen, and Antonius J. F. Hoitink
Earth Surf. Dynam., 11, 1283–1298, https://doi.org/10.5194/esurf-11-1283-2023, https://doi.org/10.5194/esurf-11-1283-2023, 2023
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Secondary bedforms that are superimposed on large, primary dunes likely play a large role in fluvial systems. This study demonstrates that they can be omnipresent. Especially during peak flows, they grow large and can have steep slopes, likely affecting flood risk and sediment transport dynamics. Primary dune morphology determines whether they continuously or intermittently migrate. During discharge peaks, the secondary bedforms can become the dominant dune scale.
Matthew C. Morriss, Benjamin Lehmann, Benjamin Campforts, George Brencher, Brianna Rick, Leif S. Anderson, Alexander L. Handwerger, Irina Overeem, and Jeffrey Moore
Earth Surf. Dynam., 11, 1251–1274, https://doi.org/10.5194/esurf-11-1251-2023, https://doi.org/10.5194/esurf-11-1251-2023, 2023
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In this paper, we investigate the 28 June 2022 collapse of the Chaos Canyon landslide in Rocky Mountain National Park, Colorado, USA. We find that the landslide was moving prior to its collapse and took place at peak spring snowmelt; temperature modeling indicates the potential presence of permafrost. We hypothesize that this landslide could be part of the broader landscape evolution changes to alpine terrain caused by a warming climate, leading to thawing alpine permafrost.
Dominic T. Robson and Andreas C. W. Baas
EGUsphere, https://doi.org/10.5194/egusphere-2023-2900, https://doi.org/10.5194/egusphere-2023-2900, 2023
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We present simulations of large populations (swarms) of a type of sand dune known as barchans. Our findings reveal that the rate at which sand moves inside an asymmetric barchan is vital to the behaviour of swarms and that many observed properties of the dunes can be explained by similar rates. We also show that different directions of the wind and the density of dunes added to swarms play important roles in shaping their evolution.
Christopher Tomsett and Julian Leyland
Earth Surf. Dynam., 11, 1223–1249, https://doi.org/10.5194/esurf-11-1223-2023, https://doi.org/10.5194/esurf-11-1223-2023, 2023
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Vegetation influences how rivers change through time, yet the way in which we analyse vegetation is limited. Current methods collect detailed data at the individual plant level or determine dominant vegetation types across larger areas. Herein, we use UAVs to collect detailed vegetation datasets for a 1 km length of river and link vegetation properties to channel evolution occurring within the study site, providing a new method for investigating the influence of vegetation on river systems.
Rabab Yassine, Ludovic Cassan, Hélène Roux, Olivier Frysou, and François Pérès
Earth Surf. Dynam., 11, 1199–1221, https://doi.org/10.5194/esurf-11-1199-2023, https://doi.org/10.5194/esurf-11-1199-2023, 2023
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Predicting river morphology evolution is very complicated, especially for mountain rivers with complex morphologies such as the Lac des Gaves reach in France. A 2D hydromorphological model was developed to reproduce the channel's evolution and provide reliable volumetric predictions while revealing the challenge of choosing adapted sediment transport and friction laws. Our model can provide decision-makers with reliable predictions to design suitable restoration measures for this reach.
Daisuke Harada and Shinji Egashira
Earth Surf. Dynam., 11, 1183–1197, https://doi.org/10.5194/esurf-11-1183-2023, https://doi.org/10.5194/esurf-11-1183-2023, 2023
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This paper proposes a method for describing large-wood behavior in terms of the convection equation and the storage equation, which are associated with active sediment erosion and deposition. Compared to the existing Lagrangian method, the proposed method can easily simulate the behavior of large wood in the flow field with active sediment transport. The method is applied to the flood disaster in the Akatani River in 2017, and the 2-D flood flow computations are successfully performed.
Hemanti Sharma and Todd A. Ehlers
Earth Surf. Dynam., 11, 1161–1181, https://doi.org/10.5194/esurf-11-1161-2023, https://doi.org/10.5194/esurf-11-1161-2023, 2023
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Seasonality in precipitation (P) and vegetation (V) influences catchment erosion (E), although which factor plays the dominant role is unclear. In this study, we performed a sensitivity analysis of E to P–V seasonality through numerical modeling. Our results suggest that P variations strongly influence seasonal variations in E, while the effect of seasonal V variations is secondary but significant. This is more pronounced in moderate and least pronounced in extreme environmental settings.
Eduardo Gomez-de la Peña, Giovanni Coco, Colin Whittaker, and Jennifer Montaño
Earth Surf. Dynam., 11, 1145–1160, https://doi.org/10.5194/esurf-11-1145-2023, https://doi.org/10.5194/esurf-11-1145-2023, 2023
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Predicting how shorelines change over time is a major challenge in coastal research. We here have turned to deep learning (DL), a data-driven modelling approach, to predict the movement of shorelines using observations from a camera system in New Zealand. The DL models here implemented succeeded in capturing the variability and distribution of the observed shoreline data. Overall, these findings indicate that DL has the potential to enhance the accuracy of current shoreline change predictions.
Christoph Rettinger, Mina Tabesh, Ulrich Rüde, Stefan Vollmer, and Roy M. Frings
Earth Surf. Dynam., 11, 1097–1115, https://doi.org/10.5194/esurf-11-1097-2023, https://doi.org/10.5194/esurf-11-1097-2023, 2023
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Packing models promise efficient and accurate porosity predictions of fluvial sediment deposits. In this study, three packing models were reviewed, calibrated, and validated. Only two of the models were able to handle the continuous and large grain size distributions typically encountered in rivers. We showed that an extension by a cohesion model is necessary and developed guidelines for successful predictions in different rivers.
Alexander A. Ermilov, Gergely Benkő, and Sándor Baranya
Earth Surf. Dynam., 11, 1061–1095, https://doi.org/10.5194/esurf-11-1061-2023, https://doi.org/10.5194/esurf-11-1061-2023, 2023
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A novel, artificial-intelligence-based riverbed sediment analysis methodology is introduced that uses underwater images to identify the characteristic sediment classes. The main novelties of the procedure are as follows: underwater images are used, the method enables continuous mapping of the riverbed along the measurement vessel’s route contrary to conventional techniques, the method is cost-efficient, and the method works without scaling.
Kelly M. Sanks, John B. Shaw, Samuel M. Zapp, José Silvestre, Ripul Dutt, and Kyle M. Straub
Earth Surf. Dynam., 11, 1035–1060, https://doi.org/10.5194/esurf-11-1035-2023, https://doi.org/10.5194/esurf-11-1035-2023, 2023
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River deltas encompass many depositional environments (like channels and wetlands) that interact to produce coastal environments that change through time. The processes leading to sedimentation in wetlands are often neglected from physical delta models. We show that wetland sedimentation constrains flow to the channels, changes sedimentation rates, and produces channels more akin to field-scale deltas. These results have implications for the management of these vulnerable coastal landscapes.
Katharina Wetterauer and Dirk Scherler
Earth Surf. Dynam., 11, 1013–1033, https://doi.org/10.5194/esurf-11-1013-2023, https://doi.org/10.5194/esurf-11-1013-2023, 2023
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In glacial landscapes, debris supply rates vary spatially and temporally. Rockwall erosion rates derived from cosmogenic 10Be concentrations in medial moraine debris at five Swiss glaciers around Pigne d'Arolla indicate an increase in erosion from the end of the Little Ice Age towards deglaciation but temporally more stable rates over the last ∼100 years. Rockwall erosion rates are higher where rockwalls are steep and north-facing, suggesting a potential slope and temperature control.
Sam Anderson, Nicole Gasparini, and Joel Johnson
Earth Surf. Dynam., 11, 995–1011, https://doi.org/10.5194/esurf-11-995-2023, https://doi.org/10.5194/esurf-11-995-2023, 2023
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We measured rock strength and amount of fracturing in the two different rock types, sandstones and carbonates, in Last Chance Canyon, New Mexico, USA. Where there is more carbonate bedrock, hills and channels steepen in Last Chance Canyon. This is because the carbonate-type bedrock tends to be more thickly bedded, is less fractured, and is stronger. The carbonate bedrock produces larger boulders than the sandstone bedrock, which can protect the more fractured sandstone bedrock from erosion.
Jens M. Turowski, Gunnar Pruß, Anne Voigtländer, Andreas Ludwig, Angela Landgraf, Florian Kober, and Audrey Bonnelye
Earth Surf. Dynam., 11, 979–994, https://doi.org/10.5194/esurf-11-979-2023, https://doi.org/10.5194/esurf-11-979-2023, 2023
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Rivers can cut into rocks, and their strength modulates the river's erosion rates. Yet, which properties of the rock control its response to erosive action is poorly understood. Here, we describe parallel experiments to measure rock erosion rates under fluvial impact erosion and the rock's geotechnical properties such as fracture strength, elasticity, and density. Erosion rates vary over a factor of a million between different rock types. We use the data to improve current theory.
Cited articles
Arnold, L. J., Bailey, R. M., and Tucker, G. E.: Statistical Treatment of Fluvial Dose Distributions from Southern Colorado Arroyo Deposits, Quat. Geochronol., 2, 162–167, https://doi.org/10.1016/j.quageo.2006.05.003, 2007. a
Aslan, A., Karlstrom, K., Crossey, L., Kelley, S., Cole, R., Lazear, G., and Darling, A.: Late Cenozoic Evolution of the Colorado Rockies: Evidence for Neogene Uplift and Drainage Integration, in: Through the Generations: Geologic and Anthropogenic Field Excursions in the Rocky Mountains from Modern to Ancient, Geological Society of America, 18, 21–54, ISBN 978-0-8137-0018-2, https://doi.org/10.1130/2010.0018(02), 2010. a
Aslan, A., Karlstrom, K. E., Kirby, E., Heizler, M. T., Granger, D. E., Feathers, J. K., Hanson, P. R., and Mahan, S. A.: Resolving Time-Space Histories of Late Cenozoic Bedrock Incision along the Upper Colorado River, USA, Geomorphology, 347, 106855, https://doi.org/10.1016/j.geomorph.2019.106855, 2019. a, b, c, d, e, f, g, h
Atwood, W. W. and Mather, K. F.: The Evidence of Three Distinct Glacial Epochs in the Pleistocene History of the San Juan Mountains, Colorado, J. Geol., 20, 385–409, https://doi.org/10.1086/621985, 1912. a
Barbour, J. R.: The Origin and Significance of Sinuosity along Incising Bedrock Rivers, PhD thesis, Columbia University, https://www.proquest.com/dissertations-theses/origin-significance-sinuosity-along-incising/docview/304620818/se-2?accountid=14026 (last access: 8 July 2024), 2008. a
Blackwelder, E.: Origin of the Colorado River, Bull. Geol. Soc. Am., 45, 551–566, 1934. a
Bøtter-Jensen, L., Andersen, C. E., Duller, G. A., and Murray, A. S.: Developments in Radiation, Stimulation and Observation Facilities in Luminescence Measurements, Radiat. Meas., 37, 535–541, 2003. a
Brennan, B. J., Lyons, R. G., and Phillips, S. W.: Attenuation of Alpha Particle Track Dose for Spherical Grains, International Journal of Radiation Applications and Instrumentation, Part D. Nuclear Tracks and Radiation Measurements, 18, 249–253, 1991. a
Bridgland, D. and Westaway, R.: Climatically Controlled River Terrace Staircases: A Worldwide Quaternary Phenomenon, Geomorphology, 98, 285–315, https://doi.org/10.1016/j.geomorph.2006.12.032, 2008. a
Bursztyn, N., Pederson, J., Tressler, C., Mackley, R., and Mitchell, K.: Rock Strength along a Fluvial Transect of the Colorado Plateau – Quantifying a Fundamental Control on Geomorphology, Earth Planet. Sc. Lett., 429, 90–100, https://doi.org/10.1016/j.epsl.2015.07.042, 2015. a
Buylaert, J. P., Jain, M., Murray, A. S., Thomsen, K. J., Thiel, C., and Sohbati, R.: A Robust Feldspar Luminescence Dating Method for Middle and Late Pleistocene Sediments, Boreas, Münstersche Beiträge zur Archäologie, 41, 435–451, 2012. a
Cook, K. L., Whipple, K. X., Heimsath, A. M., and Hanks, T. C.: Rapid Incision of the Colorado River in Glen Canyon – Insights from Channel Profiles, Local Incision Rates, and Modeling of Lithologic Controls, Earth Surf. Proc. Land., 34, 994–1010, https://doi.org/10.1002/esp.1790, 2009. a, b, c, d, e, f
Cooley, M. E., Harshbarger, J. W., Akers, J. P., and Hardt, W. F.: Regional Hydrogeology of the Navajo and Hopi Indian Reservations, Arizona, New Mexico, and Utah, Professional Paper, US Government Printing Office, https://pubs.usgs.gov/publication/pp521A (last access: 29 September 2021), 1969. a, b
Crossey, L., Karlstrom, K., Dorsey, R., Pearce, J., Wan, E., Beard, L., Asmerom, Y., Polyak, V., Crow, R., Cohen, A., Bright, J., and Pecha, M.: Importance of Groundwater in Propagating Downward Integration of the 6–5 Ma Colorado River System: Geochemistry of Springs, Travertines, and Lacustrine Carbonates of the Grand Canyon Region over the Past 12 Ma, Geosphere, 11, 660–682, https://doi.org/10.1130/GES01073.1, 2015. a
Darling, A. L., Karlstrom, K. E., Granger, D. E., Aslan, A., Kirby, E., Ouimet, W. B., Lazear, G. D., Coblentz, D. D., and Cole, R. D.: New Incision Rates along the Colorado River System Based on Cosmogenic Burial Dating of Terraces: Implications for Regional Controls on Quaternary Incision, Geosphere, 8, 1020–1041, https://doi.org/10.1130/GES00724.1, 2012. a, b, c, d, e, f, g, h, i
Durcan, J. A., King, G. E., and Duller, G. A. T.: DRAC: Dose Rate and Age Calculator for Trapped Charge Dating, Quat. Geochronol., 28, 54–61, https://doi.org/10.1016/j.quageo.2015.03.012, 2015a. a
Durcan, J. A., King, G. E., and Duller, G. A. T.: DRAC v. 1.2, Aberystwyth University [code], https://www.aber.ac.uk/en/dges/research/quaternary/luminescence-research-laboratory/dose-rate-calculator/ (last access: 11 January 2023), 2015b.
Finnegan, N. J. and Dietrich, W. E.: Episodic Bedrock Strath Terrace Formation Due to Meander Migration and Cutoff, Geology, 39, 143–146, https://doi.org/10.1130/G31716.1, 2011. a, b, c, d
Galbraith, R. F., Roberts, R. G., Laslett, G. M., Yoshida, H., and Olley, J. M.: Optical Dating of Single and Multiple Grains of Quartz from Jinmium Rock Shelter, Northern Australia: Part I, Experimental Design and Statistical Models, Archaeometry, 41, 339–364, https://doi.org/10.1111/j.1475-4754.1999.tb00987.x, 1999. a
Gallen, S. F., Pazzaglia, F. J., Wegmann, K. W., Pederson, J. L., and Gardner, T. W.: The Dynamic Reference Frame of Rivers and Apparent Transience in Incision Rates, Geology, 43, 623–626, https://doi.org/10.1130/G36692.1, 2015. a
Garvin, C. D., Hanks, T. C., Finkel, R. C., and Heimsath, A. M.: Episodic Incision of the Colorado River in Glen Canyon, Utah, Earth Surf. Proc. Land., 30, 973–984, https://doi.org/10.1002/esp.1257, 2005. a, b, c
Gliganic, L. A., Cohen, T. J., Meyer, M., and Molenaar, A.: Variations in Luminescence Properties of Quartz and Feldspar from Modern Fluvial Sediments in Three Rivers, Quat. Geochronol., 41, 70–82, https://doi.org/10.1016/j.quageo.2017.06.005, 2017. a, b
Granger, D. E. and Muzikar, P. F.: Dating Sediment Burial with in Situ-Produced Cosmogenic Nuclides: Theory, Techniques, and Limitations, Earth Planet. Sc. Lett., 188, 269–281, https://doi.org/10.1016/S0012-821X(01)00309-0, 2001. a
Granger, D. E., Kirchner, J. W., and Finkel, R.: Spatially Averaged Long-Term Erosion Rates Measured from in Situ-Produced Cosmogenic Nuclides in Alluvial Sediment, J. Geol., 104, 249–257, 1996. a
Gray, H. J., Tucker, G. E., and Mahan, S. A.: Application of a Luminescence-Based Sediment Transport Model, Geophys. Res. Lett., 45, 6071–6080, https://doi.org/10.1029/2018GL078210, 2018. a
Guérin, G., Mercier, N., Nathan, R., Adamiec, G., and Lefrais, Y.: On the Use of the Infinite Matrix Assumption and Associated Concepts: A Critical Review, Radiat. Meas., 47, 778–785, 2012. a
Hancock, G. S. and Anderson, R. S.: Numerical Modeling of Fluvial Strath-Terrace Formation in Response to Oscillating Climate, GSA Bulletin, 114, 1131–1142, https://doi.org/10.1130/0016-7606(2002)114<1131:NMOFST>2.0.CO;2, 2002. a
Hanks, T. C. and Finkel, R. C.: Early Pleistocene Incision of the San Juan River, Utah, Dated with 26Al and 10Be: Comment and Reply: COMMENT, Geology, 33, e78–e79, https://doi.org/10.1130/0091-7613-33.1.e78, 2005. a
Harden, D. R.: Controlling Factors in the Distribution and Development of Incised Meanders in the Central Colorado Plateau, Geol. Soc. Am. Bull., 102, 233–242, https://doi.org/10.1130/0016-7606(1990)102<0233:CFITDA>2.3.CO;2, 1990. a
Heisinger, B., Lal, D., Jull, A., Kubik, P., Ivy-Ochs, S., Knie, K., and Nolte, E.: Production of Selected Cosmogenic Radionuclides by Muons: 2. Capture of Negative Muons, Earth Planet. Sc. Lett., 200, 357–369, https://doi.org/10.1016/S0012-821X(02)00641-6, 2002a. a
Heisinger, B., Lal, D., Jull, A. J. T., Kubik, P., Ivy-Ochs, S., Neumaier, S., Knie, K., Lazarev, V., and Nolte, E.: Production of Selected Cosmogenic Radionuclides by Muons 1. Fast Muons, Earth Planet. Sc. Lett., 200, 345–355, 2002b. a
Heizler, M. T., Karlstrom, K. E., Albonico, M., Hereford, R., Beard, L. S., Cather, S. M., Crossey, L. J., and Sundell, K. E.: Detrital Sanidine 40Ar
Hereford, R., Beard, L. S., Dickinson, W. R., Karlstrom, K. E., Heizler, M. T., Crossey, L. J., Amoroso, L., House, P. K., and Pecha, M.: Reevaluation of the Crooked Ridge River – Early Pleistocene (ca. 2 Ma) Age and Origin of the White Mesa Alluvium, Northeastern Arizona, Geosphere, 12, 768–789, https://doi.org/10.1130/GES01124.1, 2016. a
Hilley, G., Mynatt, I., and Pollard, D.: Structural Geometry of Raplee Ridge Monocline and Thrust Fault Imaged Using Inverse Boundary Element Modeling and ALSM Data, J. Struct. Geol., 32, 45–58, https://doi.org/10.1016/j.jsg.2009.06.015, 2010. a
Hovius, N. and Stark, C.: Actively Meandering Bedrock Rivers, in: AGU Fall Meeting Abstracts, vol. 2001, H52B–0389, https://ui.adsabs.harvard.edu/abs/2001AGUFM.H52B0389H/abstract (last access: 30 September 2021), 2001. a
Hunt, C. B.: Geologic History of the Colorado River: Chapter C in The Colorado River Region and John Wesley Powell (Professional Paper 669), USGS Numbered Series 669-C, U.S. Government Printing Office, Washington, DC, https://doi.org/10.3133/pp669C, 1969. a, b
Huntley, D. J. and Baril, M. R.: The K Content of the K-feldspars Being Measured in Optical Dating or in Thermoluminescence Dating, Ancient Tl, 15, 11–13, 1997. a
Huntley, D. J., Godfrey-Smith, D. I., and Thewalt, M. L. W.: Optical Dating of Sediments, Nature, 313, 105–107, https://doi.org/10.1038/313105a0, 1985. a
Inoue, T., Parker, G., and Stark, C. P.: Morphodynamics of a Bedrock-Alluvial Meander Bend That Incises as It Migrates Outward: Approximate Solution of Permanent Form, Earth Surf. Proc. Land., 42, 1342–1354, https://doi.org/10.1002/esp.4094, 2017. a
Inoue, T., Mishra, J., and Parker, G.: Numerical Simulations of Meanders Migrating Laterally as They Incise Into Bedrock, J. Geophys. Res.-Earth, 126, e2020JF005645, https://doi.org/10.1029/2020JF005645, 2021. a, b
Johnson, B., Gillam, M., and Beeton, J.: Glaciations of the San Juan Mountains: A Review of Work since Atwood and Mather, in: Geology of the Ouray-Silverton Area: New Mexico Geological Society 68th Annual Fall Field Conference Guidebook, 195–204, https://nmgs.nmt.edu/publications/guidebooks/68/ (last access: 5 January 2024), 2017. a
Johnson, B. G., Eppes, M. C., Diemer, J. A., Jiménez-Moreno, G., and Layzell, A. L.: Post-Glacial Landscape Response to Climate Variability in the Southeastern San Juan Mountains of Colorado, USA, Quatern. Res., 76, 352–362, https://doi.org/10.1016/j.yqres.2011.08.006, 2011. a
Karlstrom, K., Coblentz, D., Dueker, K., Ouimet, W., Kirby, E., Van Wijk, J., Schmandt, B., Kelley, S., Lazear, G., Crossey, L., Crow, R., Aslan, A., Darling, A., Aster, R., MacCarthy, J., Hansen, S., Stachnik, J., Stockli, D., Garcia, R., Hoffman, M., McKeon, R., Feldman, J., Heizler, M., Donahue, M., and and the CREST Working Group: Mantle-Driven Dynamic Uplift of the Rocky Mountains and Colorado Plateau and Its Surface Response: Toward a Unified Hypothesis, Lithosphere, 4, 3–22, https://doi.org/10.1130/L150.1, 2012. a, b
Karlstrom, K., Darling, A., Crow, R., Lazear, G., Aslan, A., Granger, D., Kirby, E., Crossey, L., and Whipple, K.: Colorado River Chronostratigraphy at Lee's Ferry, Arizona, and the Colorado Plateau Bull's-Eye of Incision: COMMENT, Geology, 41, e303, https://doi.org/10.1130/G34550C.1, 2013. a
Karlstrom, K., Crossey, L., Embid, E., Crow, R., Heizler, M., Hereford, R., Beard, L., Ricketts, J., Cather, S., and Kelley, S.: Cenozoic Incision History of the Little Colorado River: Its Role in Carving Grand Canyon and Onset of Rapid Incision in the Past ca. 2 Ma in the Colorado River System, Geosphere, 13, 49–81, https://doi.org/10.1130/GES01304.1, 2017. a
Karlstrom, K. E., Crow, R., Crossey, L., Coblentz, D., and Van Wijk, J. W.: Model for Tectonically Driven Incision of the Younger than 6 Ma Grand Canyon, Geology, 36, 835, https://doi.org/10.1130/G25032A.1, 2008. a, b
Karlstrom, K. E., Lee, J. P., Kelley, S. A., Crow, R. S., Crossey, L. J., Young, R. A., Lazear, G., Beard, L. S., Ricketts, J. W., Fox, M., and Shuster, D. L.: Formation of the Grand Canyon 5 to 6 Million Years Ago through Integration of Older Palaeocanyons, Nat. Geosci., 7, 239–244, https://doi.org/10.1038/ngeo2065, 2014. a
Kohl, C. and Nishiizumi, K.: Chemical Isolation of Quartz for Measurement of In-Situ-Produced Cosmogenic Nuclides, Geochim. Cosmochim. Ac., 56, 3583–3587, https://doi.org/10.1016/0016-7037(92)90401-4, 1992. a
Kreutzer, S., Schmidt, C., Fuchs, M., Dietze, M., and Fuchs, M.: Introducing an R Package for Luminescence Dating Analysis, Ancient TL, 30, 8 pp., https://hal.science/hal-01846159/ (last access: 5 January 2024), 2012. a
Lal, D.: Cosmic Ray Labeling of Erosion Surfaces: In Situ Nuclide Production Rates and Erosion Models, Earth Planet. Sc. Lett., 104, 424–439, https://doi.org/10.1016/0012-821X(91)90220-C, 1991. a, b
Lal, D. and Peters, B.: Cosmic Ray Produced Radioactivity on the Earth, in: Kosmische Strahlung II/Cosmic Rays II, Springer, 551–612, https://doi.org/10.1007/978-3-642-46079-1_7, 1967. a
Leopold, L. and Bull, W.: Base Level, Aggradation, and Grade, P. Am. Philos. Soc., 123, 168–202, 1979. a
Lifton, N., Sato, T., and Dunai, T. J.: Scaling in Situ Cosmogenic Nuclide Production Rates Using Analytical Approximations to Atmospheric Cosmic-Ray Fluxes, Earth Planet. Sc. Lett., 386, 149–160, https://doi.org/10.1016/j.epsl.2013.10.052, 2014. a, b
Limaye, A. B. S. and Lamb, M. P.: Numerical Simulations of Bedrock Valley Evolution by Meandering Rivers with Variable Bank Material, J. Geophys. Res.-Earth, 119, 927–950, https://doi.org/10.1002/2013JF002997, 2014. a
Liritzis, I., Stamoulis, K., Papachristodoulou, C., and Ioannides, K.: A Re-Evaluation of Radiation Dose-Rate Conversion Factors, Mediterr. Archaeol. Ar., 13, 1–15, 2013. a
Lucchitta, I. and Holm, R.: Re-Evaluation of Exotic Gravel and Inverted Topography at Crooked Ridge, Northern Arizona: Relicts of an Ancient River of Regional Extent, Geosphere, 16, 533–545, https://doi.org/10.1130/GES02166.1, 2020. a, b
Marrero, S. M., Phillips, F. M., Borchers, B., Lifton, N., Aumer, R., and Balco, G.: Cosmogenic Nuclide Systematics and the CRONUScalc Program, Quat. Geochronol., 31, 160–187, 2016a. a
Marrero, S. M., Phillips, F. M., Borchers, B., Lifton, N., Aumer, R., and Balco, G.: CRONUScalc v2.1, CRONUS [code], https://cronus.cosmogenicnuclides.rocks/2.1/ (last access: 3 November 2021), 2016b.
Moore, R. C.: Significance of Inclosed Meanders in the Physiographic History of the Colorado Plateau Country, J. Geol., 34, 97–130, https://doi.org/10.1086/623284, 1926. a, b
Nishiizumi, K., Kohl, C. P., Arnold, J. R., Klein, J., Fink, D., and Middleton, R.: Cosmic Ray Produced 10Be and 26Al in Antarctic Rocks: Exposure and Erosion History, Earth Planet. Sc. Lett., 104, 440–454, 1991. a
Nishiizumi, K., Imamura, M., Caffee, M. W., Southon, J. R., Finkel, R. C., and McAninch, J.: Absolute Calibration of 10Be AMS Standards, Nucl. Instrum. Meth. B, 258, 403–413, https://doi.org/10.1016/j.nimb.2007.01.297, 2007. a
O'Sullivan, R. B.: Geology of the Cedar Mesa-Boundary Butte Area, San Juan County, Utah, Tech. rep., U.S. Geological Survey, https://doi.org/10.3133/b1186, 1965. a, b, c, d
Ouimet, W. B., Whipple, K. X., Crosby, B. T., Johnson, J. P., and Schildgen, T. F.: Epigenetic Gorges in Fluvial Landscapes, Earth Surf. Proc. Land., 33, 1993–2009, https://doi.org/10.1002/esp.1650, 2008. a
Pearthree, P. A. and House, P. K.: Paleogeomorphology and Evolution of the Early Colorado River Inferred from Relationships in Mohave and Cottonwood Valleys, Arizona, California, and Nevada, Geosphere, 10, 1139–1160, https://doi.org/10.1130/GES00988.1, 2014. a
Pederson, J., Karlstrom, K., Sharp, W., and McIntosh, W.: Differential incision of the Grand Canyon related to Quaternary faulting – Constraints from U-series and
Pederson, J. L., Cragun, W. S., Hidy, A. J., Rittenour, T. M., and Gosse, J. C.: Colorado River Chronostratigraphy at Lee's Ferry, Arizona, and the Colorado Plateau Bull's-Eye of Incision, Geology, 41, 427–430, https://doi.org/10.1130/G34051.1, 2013. a, b
Personius, S. F., Kelsey, H. M., and Grabau, P. C.: Evidence for Regional Stream Aggradation in the Central Oregon Coast Range during the Pleistocene-Holocene Transition, Quatern. Res., 40, 297–308, 1993. a
Polyak, V., Hill, C., and Asmerom, Y.: Age and Evolution of the Grand Canyon Revealed by U–Pb Dating of Water Table-Type Speleothems, Science, 319, 1377–1380, https://doi.org/10.1126/science.1151248, 2008. a
Prescott, J. R. and Hutton, J. T.: Cosmic Ray Contributions to Dose Rates for Luminescence and ESR Dating: Large Depths and Long-Term Time Variations, Radiat. Meas., 23, 497–500, 1994. a
Reimann, T., Thomsen, K. J., Jain, M., Murray, A. S., and Frechen, M.: Single-Grain Dating of Young Sediments Using the pIRIR Signal from Feldspar, Quat. Geochronol., 11, 28–41, https://doi.org/10.1016/j.quageo.2012.04.016, 2012. a
Rhodes, E. J.: Optically Stimulated Luminescence Dating of Sediments over the Past 200,000 Years, Annu. Rev. Earth Pl. Sc., 39, 461–488, https://doi.org/10.1146/annurev-earth-040610-133425, 2011. a, b, c, d
Rosenberg, R., Kirby, E., Aslan, A., Karlstrom, K., Heizler, M., and Ouimet, W.: Late Miocene erosion and evolution of topography along the western slope of the Colorado Rockies, Geosphere, 10, 641–663, 2014. a
Saha, S., Moon, S., Brown, N. D., Rhodes, E. J., Scharer, K. M., McPhillips, D., McGill, S. F., and Castillo, B. A.: Holocene Depositional History Inferred From Single-Grain Luminescence Ages in Southern California, North America, Geophys. Res. Lett., 48, e2021GL092774, https://doi.org/10.1029/2021GL092774, 2021. a, b
Seminara, G.: Meanders, J. Fluid Mech., 554, 271, https://doi.org/10.1017/S0022112006008925, 2006. a
Sieh, K. E. and Jahns, R. H.: Holocene Activity of the San Andreas Fault at Wallace Creek, California, GSA Bulletin, 95, 883–896, https://doi.org/10.1130/0016-7606(1984)95<883:HAOTSA>2.0.CO;2, 1984. a
Stark, C. P., Barbour, J. R., Hayakawa, Y. S., Hattanji, T., Hovius, N., Chen, H., Lin, C.-W., Horng, M.-J., Xu, K.-Q., and Fukahata, Y.: The Climatic Signature of Incised River Meanders, Science, 327, 1497–1501, https://doi.org/10.1126/science.1184406, 2010. a, b
Steelquist, A.: Steelquist et al., 2024 – The impact of bedrock meander cutoffs on 50 kyr-scale incision rates, San Juan River, Utah – Datasets, Zenodo [data set], https://doi.org/10.5281/zenodo.13750959, 2024.
Steelquist, A. T., Lapôtre, M. G. A., and Hilley, G. E.: Drainage Initiation, Expansion, and Channel-Head Arrest in Heterogenous Bedrock Landscapes of the Colorado Plateau, Geol. Soc. Am. Bull., 135, 1344–1358, 2023. a
Tinkler, K.: Active Valley Meanders in South-Central Texas and Their Wider Implications, Geol. Soc. Am. Bull., 82, 1783, https://doi.org/10.1130/0016-7606(1971)82[1783:AVMIST]2.0.CO;2, 1971. a, b
Turowski, J. M.: Alluvial cover controlling the width, slope and sinuosity of bedrock channels, Earth Surf. Dynam., 6, 29–48, https://doi.org/10.5194/esurf-6-29-2018, 2018. a, b, c
Wengerd, S. A.: Photogeologic Characteristics of Paleozoic Rocks on the Monument Upwarp, Utah, Photogramm. Eng., 16, 770–781, 1950. a
Westaway, R., Bridgland, D. R., Sinha, R., and Demir, T.: Fluvial Sequences as Evidence for Landscape and Climatic Evolution in the Late Cenozoic: A Synthesis of Data from IGCP 518, Global Planet. Change, 68, 237–253, https://doi.org/10.1016/j.gloplacha.2009.02.009, 2009. a
Winslow, A.: The Osage River and Its Meanders, Science, 546, 31–32, 1893. a
Ziony, J. I.: Analysis of Systematic Jointing in Part of the Monument Upwarp, Southeastern Utah, PhD thesis, University of California, Los Angeles, United States – California, ISBN 9798659105597, 1966. a
Short summary
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.
The rates at which rivers erode their bed can be used to interpret the geologic history of a...
