Articles | Volume 10, issue 3
https://doi.org/10.5194/esurf-10-493-2022
© Author(s) 2022. 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-10-493-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
03 Jun 2022
Research article |
| 03 Jun 2022
| 03 Jun 2022
Spatio-temporal variability and controlling factors for postglacial denudation rates in the Dora Baltea catchment (western Italian Alps)
Institute of Geological Sciences, University of Bern, Bern, 3012,
Switzerland
Oeschger Centre for Climate Change Research, University of Bern, Bern,
3012, Switzerland
Invited contribution by Elena Serra, recipient of the EGU Geomorphology Outstanding Student Poster and PICO Award 2019.
Pierre G. Valla
University Grenoble Alps, University Savoie Mont Blanc, CNRS, IRD,
IFSTTAR, ISTerre, Grenoble, 38000, France
Institute of Geological Sciences, University of Bern, Bern, 3012,
Switzerland
Oeschger Centre for Climate Change Research, University of Bern, Bern,
3012, Switzerland
Romain Delunel
Université Lumière Lyon 2, CNRS, UMR 5600 EVS, Lyon, 69635, France
Natacha Gribenski
Institute of Geological Sciences, University of Bern, Bern, 3012,
Switzerland
Oeschger Centre for Climate Change Research, University of Bern, Bern,
3012, Switzerland
Marcus Christl
Laboratory of Ion Beam Physics, Swiss Federal Institute of Technology
Zurich (ETHZ), Zurich, 8093, Switzerland
Naki Akçar
Institute of Geological Sciences, University of Bern, Bern, 3012,
Switzerland
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Janet C. Richardson, Veerle Vanacker, David M. Hodgson, Marcus Christl, and Andreas Lang
EGUsphere, https://doi.org/10.5194/egusphere-2024-2553, https://doi.org/10.5194/egusphere-2024-2553, 2024
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Pediments are long flat surfaces that extend outwards from the foot of mountains, within south Africa they are regarded as ancient landforms and can give key insights into landscape and mantle dynamics. Cosmogenic nuclide dating has been incorporated with geological (soil formation) and geomorphological (river incision) evidence, which shows that the pediments are long-lived features beyond the ages reported by cosmogenic nuclide dating.
Chiara I. Paleari, Florian Mekhaldi, Tobias Erhardt, Minjie Zheng, Marcus Christl, Florian Adolphi, Maria Hörhold, and Raimund Muscheler
Clim. Past, 19, 2409–2422, https://doi.org/10.5194/cp-19-2409-2023, https://doi.org/10.5194/cp-19-2409-2023, 2023
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In this study, we test the use of excess meltwater from continuous flow analysis from a firn core from Greenland for the measurement of 10Be for solar activity reconstructions. We show that the quality of results is similar to the measurements on clean firn, which opens the possibility to obtain continuous 10Be records without requiring large amounts of clean ice. Furthermore, we investigate the possibility of identifying solar storm signals in 10Be records from Greenland and Antarctica.
Catharina Dieleman, Philip Deline, Susan Ivy Ochs, Patricia Hug, Jordan Aaron, Marcus Christl, and Naki Akçar
EGUsphere, https://doi.org/10.5194/egusphere-2023-1873, https://doi.org/10.5194/egusphere-2023-1873, 2023
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Valleys in the Alps are shaped by glaciers, rivers, mass movements, and slope processes. An understanding of such processes is of great importance in hazard mitigation. We focused on the evolution of the Frébouge cone, which is composed of glacial, debris flow, rock avalanche, and snow avalanche deposits. Debris flows started to form the cone prior to ca. 2 ka ago. In addition, the cone was overrun by a 10 Mm3 large rock avalanche at 1.3 ± 0.1 ka and by the Frébouge glacier at 300 ± 40 a.
Giulia Sinnl, Florian Adolphi, Marcus Christl, Kees C. Welten, Thomas Woodruff, Marc Caffee, Anders Svensson, Raimund Muscheler, and Sune Olander Rasmussen
Clim. Past, 19, 1153–1175, https://doi.org/10.5194/cp-19-1153-2023, https://doi.org/10.5194/cp-19-1153-2023, 2023
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The record of past climate is preserved by several archives from different regions, such as ice cores from Greenland or Antarctica or speleothems from caves such as the Hulu Cave in China. In this study, these archives are aligned by taking advantage of the globally synchronous production of cosmogenic radionuclides. This produces a new perspective on the global climate in the period between 20 000 and 25 000 years ago.
Robert Mulvaney, Eric W. Wolff, Mackenzie M. Grieman, Helene H. Hoffmann, Jack D. Humby, Christoph Nehrbass-Ahles, Rachael H. Rhodes, Isobel F. Rowell, Frédéric Parrenin, Loïc Schmidely, Hubertus Fischer, Thomas F. Stocker, Marcus Christl, Raimund Muscheler, Amaelle Landais, and Frédéric Prié
Clim. Past, 19, 851–864, https://doi.org/10.5194/cp-19-851-2023, https://doi.org/10.5194/cp-19-851-2023, 2023
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We present an age scale for a new ice core drilled at Skytrain Ice Rise, an ice rise facing the Ronne Ice Shelf in Antarctica. Various measurements in the ice and air phases are used to match the ice core to other Antarctic cores that have already been dated, and a new age scale is constructed. The 651 m ice core includes ice that is confidently dated to 117 000–126 000 years ago, in the last interglacial. Older ice is found deeper down, but there are flow disturbances in the deeper ice.
Nathan Vandermaelen, Koen Beerten, François Clapuyt, Marcus Christl, and Veerle Vanacker
Geochronology, 4, 713–730, https://doi.org/10.5194/gchron-4-713-2022, https://doi.org/10.5194/gchron-4-713-2022, 2022
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We constrained deposition phases of fluvial sediments (NE Belgium) over the last 1 Myr with analysis and modelling of rare isotopes accumulation within sediments, occurring as a function of time and inverse function of depth. They allowed the determination of three superposed deposition phases and intercalated non-deposition periods of ~ 40 kyr each. These phases correspond to 20 % of the sediment age, which highlights the importance of considering deposition phase when dating fluvial sediments.
Natacha Gribenski, Marissa M. Tremblay, Pierre G. Valla, Greg Balco, Benny Guralnik, and David L. Shuster
Geochronology, 4, 641–663, https://doi.org/10.5194/gchron-4-641-2022, https://doi.org/10.5194/gchron-4-641-2022, 2022
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We apply quartz 3He paleothermometry along two deglaciation profiles in the European Alps to reconstruct temperature evolution since the Last Glacial Maximum. We observe a 3He thermal signal clearly colder than today in all bedrock surface samples exposed prior the Holocene. Current uncertainties in 3He diffusion kinetics do not permit distinguishing if this signal results from Late Pleistocene ambient temperature changes or from recent ground temperature variation due to permafrost degradation.
Joanne Elkadi, Benjamin Lehmann, Georgina E. King, Olivia Steinemann, Susan Ivy-Ochs, Marcus Christl, and Frédéric Herman
Earth Surf. Dynam., 10, 909–928, https://doi.org/10.5194/esurf-10-909-2022, https://doi.org/10.5194/esurf-10-909-2022, 2022
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Glacial and non-glacial processes have left a strong imprint on the landscape of the European Alps, but further research is needed to better understand their long-term effects. We apply a new technique combining two methods for bedrock surface dating to calculate post-glacier erosion rates next to a Swiss glacier. Interestingly, the results suggest non-glacial erosion rates are higher than previously thought, but glacial erosion remains the most influential on landscape evolution.
Alexander R. Groos, Janik Niederhauser, Bruk Lemma, Mekbib Fekadu, Wolfgang Zech, Falk Hänsel, Luise Wraase, Naki Akçar, and Heinz Veit
Earth Syst. Sci. Data, 14, 1043–1062, https://doi.org/10.5194/essd-14-1043-2022, https://doi.org/10.5194/essd-14-1043-2022, 2022
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Continuous observations and measurements from high elevations are necessary to monitor recent climate and environmental changes in the tropical mountains of eastern Africa, but meteorological and ground temperature data from above 3000 m are very rare. Here we present a comprehensive ground temperature monitoring network that has been established between 3493 and 4377 m in the Bale Mountains (Ethiopian Highlands) to monitor and study the afro-alpine climate and ecosystem in this region.
Michael A. Schwenk, Patrick Schläfli, Dimitri Bandou, Natacha Gribenski, Guilhem A. Douillet, and Fritz Schlunegger
Sci. Dril., 30, 17–42, https://doi.org/10.5194/sd-30-17-2022, https://doi.org/10.5194/sd-30-17-2022, 2022
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A scientific drilling was conducted into a bedrock trough (overdeepening) in Bern-Bümpliz (Switzerland) in an effort to advance the knowledge of the Quaternary prior to 150 000 years ago. We encountered a 208.5 m-thick succession of loose sediments (gravel, sand and mud) in the retrieved core and identified two major sedimentary sequences (A: lower, B: upper). The sedimentary suite records two glacial advances and the subsequent filling of a lake sometime between 300 000 and 200 000 years ago.
Irene Schimmelpfennig, Joerg M. Schaefer, Jennifer Lamp, Vincent Godard, Roseanne Schwartz, Edouard Bard, Thibaut Tuna, Naki Akçar, Christian Schlüchter, Susan Zimmerman, and ASTER Team
Clim. Past, 18, 23–44, https://doi.org/10.5194/cp-18-23-2022, https://doi.org/10.5194/cp-18-23-2022, 2022
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Small mountain glaciers advance and recede as a response to summer temperature changes. Dating of glacial landforms with cosmogenic nuclides allowed us to reconstruct the advance and retreat history of an Alpine glacier throughout the past ~ 11 000 years, the Holocene. The results contribute knowledge to the debate of Holocene climate evolution, indicating that during most of this warm period, summer temperatures were similar to or warmer than in modern times.
Alexander R. Groos, Janik Niederhauser, Luise Wraase, Falk Hänsel, Thomas Nauss, Naki Akçar, and Heinz Veit
Earth Surf. Dynam., 9, 145–166, https://doi.org/10.5194/esurf-9-145-2021, https://doi.org/10.5194/esurf-9-145-2021, 2021
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Large sorted stone stripes have been discovered on the 4000 m high central Sanetti Plateau of the tropical Bale Mountains in Ethiopia. The stripes are a mystery as similar landforms have so far only been reported in the temperate zone and polar regions. Our investigations suggest that the stripes formed in the vicinity of a former ice cap on the plateau during a much colder climatic period. The distinct pattern is the result of a process related to cyclic freezing and thawing of the ground.
Anne-Marie Wefing, Núria Casacuberta, Marcus Christl, Nicolas Gruber, and John N. Smith
Ocean Sci., 17, 111–129, https://doi.org/10.5194/os-17-111-2021, https://doi.org/10.5194/os-17-111-2021, 2021
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Atlantic Water that carries heat and anthropogenic carbon into the Arctic Ocean plays an important role in the Arctic sea-ice cover decline, but its pathways and travel times remain unclear. Here we used two radionuclides of anthropogenic origin (129I and 236U) to track Atlantic-derived waters along their way through the Arctic Ocean, estimating their travel times and mixing properties. Results help to understand how future changes in Atlantic Water properties will spread through the Arctic.
Leonie Peti, Kathryn E. Fitzsimmons, Jenni L. Hopkins, Andreas Nilsson, Toshiyuki Fujioka, David Fink, Charles Mifsud, Marcus Christl, Raimund Muscheler, and Paul C. Augustinus
Geochronology, 2, 367–410, https://doi.org/10.5194/gchron-2-367-2020, https://doi.org/10.5194/gchron-2-367-2020, 2020
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Orakei Basin – a former maar lake in Auckland, New Zealand – provides an outstanding sediment record over the last ca. 130 000 years, but an age model is required to allow the reconstruction of climate change and volcanic eruptions contained in the sequence. To construct a relationship between depth in the sediment core and age of deposition, we combined tephrochronology, radiocarbon dating, luminescence dating, and the relative intensity of the paleomagnetic field in a Bayesian age–depth model.
Marius L. Huber, Maarten Lupker, Sean F. Gallen, Marcus Christl, and Ananta P. Gajurel
Earth Surf. Dynam., 8, 769–787, https://doi.org/10.5194/esurf-8-769-2020, https://doi.org/10.5194/esurf-8-769-2020, 2020
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Large boulders found in two Himalayan valleys show signs of long fluvial transport (>10 km). Paleo-discharges required to mobilize these boulders exceed typical monsoon discharges. Exposure dating shows that a cluster of these boulders was emplaced ca. 5 kyr ago. This period is coeval with a weakening of the Indian monsoon and glacier retreat in the area. We, therefore, suggest that glacier lake outburst floods are likely mechanisms that can explain these exceptional transport processes.
David Mair, Alessandro Lechmann, Romain Delunel, Serdar Yeşilyurt, Dmitry Tikhomirov, Christof Vockenhuber, Marcus Christl, Naki Akçar, and Fritz Schlunegger
Earth Surf. Dynam., 8, 637–659, https://doi.org/10.5194/esurf-8-637-2020, https://doi.org/10.5194/esurf-8-637-2020, 2020
François Clapuyt, Veerle Vanacker, Marcus Christl, Kristof Van Oost, and Fritz Schlunegger
Solid Earth, 10, 1489–1503, https://doi.org/10.5194/se-10-1489-2019, https://doi.org/10.5194/se-10-1489-2019, 2019
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Using state-of-the-art geomorphic techniques, we quantified a 2-order of magnitude discrepancy between annual, decadal, and millennial sediment fluxes of a landslide-affected mountainous river catchment in the Swiss Alps. Our results illustrate that the impact of a single sediment pulse is strongly attenuated at larger spatial and temporal scales by sediment transport. The accumulation of multiple sediment pulses has rather a measurable impact on the regional pattern of sediment fluxes.
Maxi Castrillejo, Núria Casacuberta, Marcus Christl, Christof Vockenhuber, Hans-Arno Synal, Maribel I. García-Ibáñez, Pascale Lherminier, Géraldine Sarthou, Jordi Garcia-Orellana, and Pere Masqué
Biogeosciences, 15, 5545–5564, https://doi.org/10.5194/bg-15-5545-2018, https://doi.org/10.5194/bg-15-5545-2018, 2018
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The investigation of water mass transport pathways and timescales is important to understand the global ocean circulation. Following earlier studies, we use artificial radionuclides introduced to the oceans in the 1950s to investigate the water transport in the subpolar North Atlantic (SPNA). For the first time, we combine measurements of the long-lived iodine-129 and uranium-236 to confirm earlier findings/hypotheses and to better understand shallow and deep ventilation processes in the SPNA.
Max Boxleitner, Susan Ivy-Ochs, Dagmar Brandova, Marcus Christl, Markus Egli, and Max Maisch
Geogr. Helv., 73, 241–252, https://doi.org/10.5194/gh-73-241-2018, https://doi.org/10.5194/gh-73-241-2018, 2018
Catharina Dieleman, Susan Ivy-Ochs, Kristina Hippe, Olivia Kronig, Florian Kober, and Marcus Christl
E&G Quaternary Sci. J., 67, 17–23, https://doi.org/10.5194/egqsj-67-17-2018, https://doi.org/10.5194/egqsj-67-17-2018, 2018
Antoine Cogez, Frédéric Herman, Éric Pelt, Thierry Reuschlé, Gilles Morvan, Christopher M. Darvill, Kevin P. Norton, Marcus Christl, Lena Märki, and François Chabaux
Earth Surf. Dynam., 6, 121–140, https://doi.org/10.5194/esurf-6-121-2018, https://doi.org/10.5194/esurf-6-121-2018, 2018
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Sediments produced by glaciers are transported by rivers and wind toward the ocean. During their journey, these sediments are weathered, and we know that this has an impact on climate. One key factor is time, but the duration of this journey is largely unknown. We were able to measure the average time that sediment spends only in the glacial area. This time is 100–200 kyr, which is long and allows a lot of processes to act on sediments during their journey.
Lorenz Wüthrich, Claudio Brändli, Régis Braucher, Heinz Veit, Negar Haghipour, Carla Terrizzano, Marcus Christl, Christian Gnägi, and Roland Zech
E&G Quaternary Sci. J., 66, 57–68, https://doi.org/10.5194/egqsj-66-57-2017, https://doi.org/10.5194/egqsj-66-57-2017, 2017
Maarten Lupker, Jérôme Lavé, Christian France-Lanord, Marcus Christl, Didier Bourlès, Julien Carcaillet, Colin Maden, Rainer Wieler, Mustafizur Rahman, Devojit Bezbaruah, and Liu Xiaohan
Earth Surf. Dynam., 5, 429–449, https://doi.org/10.5194/esurf-5-429-2017, https://doi.org/10.5194/esurf-5-429-2017, 2017
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We use geochemical approaches (10Be) on river sediments to quantify the erosion rates across the Tsangpo-Brahmaputra (TB) catchment in the eastern Himalayas. Our approach confirms the high erosion rates in the eastern Himalayan syntaxis region and we suggest that the abrasion of landslide material in the syntaxis is a key process in explaining how erosion signals are transferred to the sediment load.
Eric Laloy, Koen Beerten, Veerle Vanacker, Marcus Christl, Bart Rogiers, and Laurent Wouters
Earth Surf. Dynam., 5, 331–345, https://doi.org/10.5194/esurf-5-331-2017, https://doi.org/10.5194/esurf-5-331-2017, 2017
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Over very long timescales, 100 000 years or more, landscapes may drastically change. Sediments preserved in these landscapes have a cosmogenic radionuclide inventory that tell us when and how fast such changes took place. In this paper, we provide first evidence of an elevated long-term erosion rate of the northwestern Campine Plateau (lowland Europe), which can be explained by the loose nature of the subsoil.
Jean L. Dixon, Friedhelm von Blanckenburg, Kurt Stüwe, and Marcus Christl
Earth Surf. Dynam., 4, 895–909, https://doi.org/10.5194/esurf-4-895-2016, https://doi.org/10.5194/esurf-4-895-2016, 2016
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We quantify the glacial legacy of Holocene erosion at the eastern edge of the European Alps and add insight to the debate on drivers of Alpine erosion. We present the first data explicitly comparing 10Be-based erosion rates in previously glaciated and non-glaciated basins (n = 26). Erosion rates vary 5-fold across the region, correlating with local topography and glacial history. Our approach and unique study site allow us to isolate the role of glacial topographic legacies from other controls.
C. Elsässer, D. Wagenbach, I. Levin, A. Stanzick, M. Christl, A. Wallner, S. Kipfstuhl, I. K. Seierstad, H. Wershofen, and J. Dibb
Clim. Past, 11, 115–133, https://doi.org/10.5194/cp-11-115-2015, https://doi.org/10.5194/cp-11-115-2015, 2015
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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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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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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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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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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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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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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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Juditha Aga, Livia Piermattei, Luc Girod, Kristoffer Aalstad, Trond Eiken, Andreas Kääb, and Sebastian Westermann
Earth Surf. Dynam., 12, 1049–1070, https://doi.org/10.5194/esurf-12-1049-2024, https://doi.org/10.5194/esurf-12-1049-2024, 2024
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Coastal rock cliffs on Svalbard are considered to be fairly stable; however, long-term trends in coastal-retreat rates remain unknown. This study examines changes in the coastline position along Brøggerhalvøya, Svalbard, using aerial images from 1970, 1990, 2010, and 2021. Our analysis shows that coastal-retreat rates accelerate during the period 2010–2021, which coincides with increasing storminess and retreating sea ice.
Aaron T. Steelquist, Gustav B. Seixas, Mary L. Gillam, Sourav Saha, Seulgi Moon, and George E. Hilley
Earth Surf. Dynam., 12, 1071–1089, https://doi.org/10.5194/esurf-12-1071-2024, https://doi.org/10.5194/esurf-12-1071-2024, 2024
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The rates at which rivers erode their bed can be used to interpret the geologic history of a region. However, these rates depend significantly on the time window over which you measure. We use multiple dating methods to determine an incision rate for the San Juan River and compare it to regional rates with longer timescales. We demonstrate how specific geologic events, such as cutoffs of bedrock meander bends, are likely to preserve material we can date but also bias the rates we measure.
Johannes Leinauer, Michael Dietze, Sibylle Knapp, Riccardo Scandroglio, Maximilian Jokel, and Michael Krautblatter
Earth Surf. Dynam., 12, 1027–1048, https://doi.org/10.5194/esurf-12-1027-2024, https://doi.org/10.5194/esurf-12-1027-2024, 2024
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Massive rock slope failures are a significant alpine hazard and change the Earth's surface. Therefore, we must understand what controls the preparation of such events. By correlating 4 years of slope displacements with meteorological and seismic data, we found that water from rain and snowmelt is the most important driver. Our approach is applicable to similar sites and indicates where future climatic changes, e.g. in rain intensity and frequency, may alter the preparation of slope failure.
Julien Coatléven and Benoit Chauveau
Earth Surf. Dynam., 12, 995–1026, https://doi.org/10.5194/esurf-12-995-2024, https://doi.org/10.5194/esurf-12-995-2024, 2024
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The aim of this paper is to explain how to incorporate classical water flow routines into landscape evolution models while keeping numerical errors under control. The key idea is to adapt filtering strategies to eliminate anomalous numerical errors and mesh dependencies, as confirmed by convergence tests with analytic solutions. The emergence of complex geomorphic structures is now driven exclusively by nonlinear heterogeneous physical processes rather than by random numerical artifacts.
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.
Jens Martin Turowski, Fergus McNab, Aaron Bufe, and Stefanie Tofelde
EGUsphere, https://doi.org/10.5194/egusphere-2024-2342, https://doi.org/10.5194/egusphere-2024-2342, 2024
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Channel belts comprise the area that is affected by a river due to lateral migration and floods. As a landform, they affect local water resources, flood hazard, and often host unique ecological communities. Here, 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 is favourable.
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.
Jean Vérité, Clément Narteau, Olivier Rozier, Jeanne Alkalla, Laurie Barrier, and Sylvain Courrech du Pont
EGUsphere, https://doi.org/10.5194/egusphere-2024-1634, https://doi.org/10.5194/egusphere-2024-1634, 2024
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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 shape, influencing the sediment transport downstream.
Thomas J. Barnes, Thomas V. Schuler, Simon Filhol, and Karianne S. Lilleøren
Earth Surf. Dynam., 12, 801–818, https://doi.org/10.5194/esurf-12-801-2024, https://doi.org/10.5194/esurf-12-801-2024, 2024
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In this paper, we use machine learning to automatically outline landforms based on their characteristics. We test several methods to identify the most accurate and then proceed to develop the most accurate to improve its accuracy further. We manage to outline landforms with 65 %–75 % accuracy, at a resolution of 10 m, thanks to high-quality/high-resolution elevation data. We find that it is possible to run this method at a country scale to quickly produce landform inventories for future studies.
Fritz Schlunegger, Edi Kissling, Dimitri Tibo Bandou, Guilhem Amin Douillet, David Mair, Urs Marti, Regina Reber, Patrick Fabian Schläfli, and Michael Alfred Schwenk
EGUsphere, https://doi.org/10.5194/egusphere-2024-683, https://doi.org/10.5194/egusphere-2024-683, 2024
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Overdeepenings are bedrock depressions filled with sediment. We combine the results of a gravity survey with drilling data to explore the morphology of such a depression beneath the city of Bern. We find that the target overdeepening comprises two basins >200 m deep. They are separated by a bedrock riegel that itself is cut by narrow canyons up to 150 m deep. We postulate that these structures formed underneath a glacier, where erosion by subglacial meltwater caused the formation of the canyons.
Eric Petersen, Regine Hock, and Michael G. Loso
Earth Surf. Dynam., 12, 727–745, https://doi.org/10.5194/esurf-12-727-2024, https://doi.org/10.5194/esurf-12-727-2024, 2024
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Ice cliffs are melt hot spots that increase melt rates on debris-covered glaciers which otherwise see a reduction in melt rates. In this study, we show how surface runoff streams contribute to the generation, evolution, and survival of ice cliffs by carving into the glacier and transporting rocky debris. On Kennicott Glacier, Alaska, 33 % of ice cliffs are actively influenced by streams, while nearly half are within 10 m of streams.
Daniel O'Hara, Liran Goren, Roos M. J. van Wees, Benjamin Campforts, Pablo Grosse, Pierre Lahitte, Gabor Kereszturi, and Matthieu Kervyn
Earth Surf. Dynam., 12, 709–726, https://doi.org/10.5194/esurf-12-709-2024, https://doi.org/10.5194/esurf-12-709-2024, 2024
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Understanding how volcanic edifices develop drainage basins remains unexplored in landscape evolution. Using digital evolution models of volcanoes with varying ages, we quantify the geometries of their edifices and associated drainage basins through time. We find that these metrics correlate with edifice age and are thus useful indicators of a volcano’s history. We then develop a generalized model for how volcano basins develop and compare our results to basin evolution in other settings.
Brayden Noh, Omar Wani, Kieran B. J. Dunne, and Michael P. Lamb
Earth Surf. Dynam., 12, 691–708, https://doi.org/10.5194/esurf-12-691-2024, https://doi.org/10.5194/esurf-12-691-2024, 2024
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In this paper, we propose a framework for generating risk maps that provide the probabilities of erosion due to river migration. This framework uses concepts from probability theory to learn the river migration model's parameter values from satellite data while taking into account parameter uncertainty. Our analysis shows that such geomorphic risk estimation is more reliable than models that do not explicitly consider various sources of variability and uncertainty.
Steven Y. J. Lai, David Amblas, Aaron Micallef, and Hervé Capart
Earth Surf. Dynam., 12, 621–640, https://doi.org/10.5194/esurf-12-621-2024, https://doi.org/10.5194/esurf-12-621-2024, 2024
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This study explores the creation of submarine canyons and hanging-wall fans on active faults, which can be defined by gravity-dominated breaching and underflow-dominated diffusion processes. The study reveals the self-similarity in canyon–fan long profiles, uncovers Hack’s scaling relationship and proposes a formula to estimate fan volume using canyon length. This is validated by global data from source-to-sink systems, providing insights into deep-water sedimentary processes.
Anuska Narayanan, Sagy Cohen, and John R. Gardner
Earth Surf. Dynam., 12, 581–599, https://doi.org/10.5194/esurf-12-581-2024, https://doi.org/10.5194/esurf-12-581-2024, 2024
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This study investigates the profound impact of deforestation in the Amazon on sediment dynamics. Novel remote sensing data and statistical analyses reveal significant changes, especially in heavily deforested regions, with rapid effects within a year. In less disturbed areas, a 1- to 2-year lag occurs, influenced by natural sediment shifts and human activities. These findings highlight the need to understand the consequences of human activity for our planet's future.
Jacob Hardt, Tim P. Dooley, and Michael R. Hudec
Earth Surf. Dynam., 12, 559–579, https://doi.org/10.5194/esurf-12-559-2024, https://doi.org/10.5194/esurf-12-559-2024, 2024
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We investigate the reaction of salt structures on ice sheet transgressions. We used a series of sandbox models that enabled us to experiment with scaled-down versions of salt bodies from northern Germany. The strongest reactions occurred when large salt pillows were partly covered by the ice load. Subsurface salt structures may play an important role in the energy transition, e.g., as energy storage. Thus, it is important to understand all processes that affect their stability.
Jon D. Pelletier, Robert G. Hayes, Olivia Hoch, Brendan Fenerty, and Luke A. McGuire
EGUsphere, https://doi.org/10.5194/egusphere-2024-1153, https://doi.org/10.5194/egusphere-2024-1153, 2024
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On the gently sloping landscapes next to mountain fronts, junction angles tend to be lower (more acute), while in bedrock landscapes where the initial landscape or tectonic forcing is likely more spatially variable, junction angles tend to be larger (more obtuse). We demonstrate this using an analysis of ~20 million junction angles for the U.S.A., augmented by analyses of the Loess Plateau, China, and synthetic landscapes.
Julius Reich and Axel Winterscheid
EGUsphere, https://doi.org/10.5194/egusphere-2024-579, https://doi.org/10.5194/egusphere-2024-579, 2024
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Analysing the geometry and the dynamics of riverine bedforms (so-called dunetracking) is important for various fields of application and contributes to a sound and efficient river and sediment management. We developed a new tool, which enables a robust estimation of bedform characteristics and with which comprehensive sensitivity analyses can be carried out. Using a test dataset, we show that the selection of input parameters of dunetracking tools can have a significant impact on the results.
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.
Janbert Aarnink, Tom Beucler, Marceline Vuaridel, and Virginia Ruiz-Villanueva
EGUsphere, https://doi.org/10.5194/egusphere-2024-792, https://doi.org/10.5194/egusphere-2024-792, 2024
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This study presents a novel CNN approach for detecting instream large wood in rivers, addressing the need for flexible monitoring methods that can be used on a variety of data sources. Leveraging a database of 15,228 fully labeled images, our model achieved a 67 % weighted mean average precision. Fine-tuning parameters and sampling techniques offer potential for further performance enhancement of more than 10 % in certain cases, promising valuable insights for ecosystem management.
Hayden L. Jacobson, Danica L. Roth, Gabriel Walton, Margaret Zimmer, and Kerri Johnson
EGUsphere, https://doi.org/10.5194/egusphere-2023-2694, https://doi.org/10.5194/egusphere-2023-2694, 2024
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Loose grains travel farther after a fire because no vegetation is left to stop them. This matters since loose grains at the base of a slope can turn into a debris flow if it rains. To find if grass growing back after a fire had different impacts on grains of different sizes on slopes of different steepness, we dropped thousands of natural grains and measured how far they went. Large grains went farther 7 months after the fire than 11 months after, and small grain movement didn’t change much.
Elizabeth Orr, Taylor Schildgen, Stefanie Tofelde, Hella Wittmann, and Ricardo Alonso
EGUsphere, https://doi.org/10.5194/egusphere-2024-784, https://doi.org/10.5194/egusphere-2024-784, 2024
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Fluvial terraces and alluvial fans in the Toro Basin, NW Argentina record river evolution and global climate cycles over time. Landform dating reveals lower-frequency climate cycles (100-kyr) preserved downstream and higher-frequency cycles (21/40-kyr) upstream, supporting theoretical predications that longer rivers filter out higher-frequency climate signals. This finding improves our understanding of the spatial distribution of sedimentary paleoclimate records within landscapes.
Orie Cecil, Nicholas Cohn, Matthew Farthing, Sourav Dutta, and Andrew Trautz
EGUsphere, https://doi.org/10.5194/egusphere-2024-855, https://doi.org/10.5194/egusphere-2024-855, 2024
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Using computational fluid dynamics, we analyze the error trends of an analytical shear stress distribution model used to drive aeolian transport for coastal dunes which are an important line of defense against storm related flooding hazards. We find that compared to numerical simulations, the analytical model results in a net overprediction of the landward migration rate. Additionally, two data-driven approaches are proposed for reducing the error while maintaining computational efficiency.
Jens Martin Turowski, Aaron Bufe, and Stefanie Tofelde
Earth Surf. Dynam., 12, 493–514, https://doi.org/10.5194/esurf-12-493-2024, https://doi.org/10.5194/esurf-12-493-2024, 2024
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Fluvial valleys are ubiquitous landforms, and understanding their formation and evolution affects a wide range of disciplines from archaeology and geology to fish biology. Here, we develop a model to predict the width of fluvial valleys for a wide range of geographic conditions. In the model, fluvial valley width is controlled by the two competing factors of lateral channel mobility and uplift. The model complies with available data and yields a broad range of quantitative predictions.
Daniel J. Ciarletta, Jennifer L. Miselis, Julie C. Bernier, and Arnell S. Forde
Earth Surf. Dynam., 12, 449–475, https://doi.org/10.5194/esurf-12-449-2024, https://doi.org/10.5194/esurf-12-449-2024, 2024
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We reconstructed the evolution of Fire Island, a barrier island in New York, USA, to identify drivers of landscape change. Results reveal Fire Island was once divided into multiple inlet-separated islands with distinct features. Later, inlets closed, and Fire Island’s landscape became more uniform as human activities intensified. The island is now less mobile and less likely to resist and recover from storm impacts and sea level rise. This vulnerability may exist for other stabilized barriers.
Chao Zhou, Xibin Tan, Yiduo Liu, and Feng Shi
Earth Surf. Dynam., 12, 433–448, https://doi.org/10.5194/esurf-12-433-2024, https://doi.org/10.5194/esurf-12-433-2024, 2024
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The drainage-divide stability provides new insights into both the river network evolution and the tectonic and/or climatic changes. Several methods have been proposed to determine the direction of drainage-divide migration. However, how to quantify the migration rate of drainage divides remains challenging. In this paper, we propose a new method to calculate the migration rate of drainage divides from high-resolution topographic data.
Moritz Altmann, Madlene Pfeiffer, Florian Haas, Jakob Rom, Fabian Fleischer, Tobias Heckmann, Livia Piermattei, Michael Wimmer, Lukas Braun, Manuel Stark, Sarah Betz-Nutz, and Michael Becht
Earth Surf. Dynam., 12, 399–431, https://doi.org/10.5194/esurf-12-399-2024, https://doi.org/10.5194/esurf-12-399-2024, 2024
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We show a long-term erosion monitoring of several sections on Little Ice Age lateral moraines with derived sediment yield from historical and current digital elevation modelling (DEM)-based differences. The first study period shows a clearly higher range of variability of sediment yield within the sites than the later periods. In most cases, a decreasing trend of geomorphic activity was observed.
Paul A. Carling
Earth Surf. Dynam., 12, 381–397, https://doi.org/10.5194/esurf-12-381-2024, https://doi.org/10.5194/esurf-12-381-2024, 2024
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Edge rounding in Shap granite glacial erratics is an irregular function of distance from the source outcrop in northern England, UK. Block shape is conservative, evolving according to block fracture mechanics – stochastic and silver ratio models – towards either of two attractor states. Progressive reduction in size occurs for blocks transported at the sole of the ice mass where the blocks are subject to compressive and tensile forces of the ice acting against a bedrock or till surface.
Gary Parker, Chenge An, Michael P. Lamb, Marcelo H. Garcia, Elizabeth H. Dingle, and Jeremy G. Venditti
Earth Surf. Dynam., 12, 367–380, https://doi.org/10.5194/esurf-12-367-2024, https://doi.org/10.5194/esurf-12-367-2024, 2024
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River morphology has traditionally been divided by the size 2 mm. We use dimensionless arguments to show that particles in the 1–5 mm range (i) are the finest range not easily suspended by alluvial flood flows, (ii) are transported preferentially over coarser gravel, and (iii), within limits, are also transported preferentially over sand. We show how fluid viscosity mediates the special status of sediment in this range.
Lindsay Marie Capito, Enrico Pandrin, Walter Bertoldi, Nicola Surian, and Simone Bizzi
Earth Surf. Dynam., 12, 321–345, https://doi.org/10.5194/esurf-12-321-2024, https://doi.org/10.5194/esurf-12-321-2024, 2024
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We propose that the pattern of erosion and deposition from repeat topographic surveys can be a proxy for path length in gravel-bed rivers. With laboratory and field data, we applied tools from signal processing to quantify this periodicity and used these path length estimates to calculate sediment transport using the morphological method. Our results highlight the potential to expand the use of the morphological method using only remotely sensed data as well as its limitations.
Caroline Fenske, Jean Braun, François Guillocheau, and Cécile Robin
EGUsphere, https://doi.org/10.5194/egusphere-2024-160, https://doi.org/10.5194/egusphere-2024-160, 2024
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We have developed a new numerical model to represent the formation of ferricretes which are iron-rich, hard layers found in soils and at the surface of the Earth. We assume that the formation mechanism implies variations in the height of the water table and that the hardening rate is proportional to precipitation. The model allows us to quantify the potential feedbacks they generate on the surface topography and the thickness of the regolith/soil layer.
Xuxu Wu, Jonathan Malarkey, Roberto Fernández, Jaco H. Baas, Ellen Pollard, and Daniel R. Parsons
Earth Surf. Dynam., 12, 231–247, https://doi.org/10.5194/esurf-12-231-2024, https://doi.org/10.5194/esurf-12-231-2024, 2024
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The seabed changes from flat to rippled in response to the frictional influence of waves and currents. This experimental study has shown that the speed of this change, the size of ripples that result and even whether ripples appear also depend on the amount of sticky mud present. This new classification on the basis of initial mud content should lead to improvements in models of seabed change in present environments by engineers and the interpretation of past environments by geologists.
Andrea D'Alpaos, Davide Tognin, Laura Tommasini, Luigi D'Alpaos, Andrea Rinaldo, and Luca Carniello
Earth Surf. Dynam., 12, 181–199, https://doi.org/10.5194/esurf-12-181-2024, https://doi.org/10.5194/esurf-12-181-2024, 2024
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Sediment erosion induced by wind waves is one of the main drivers of the morphological evolution of shallow tidal environments. However, a reliable description of erosion events for the long-term morphodynamic modelling of tidal systems is still lacking. By statistically characterizing sediment erosion dynamics in the Venice Lagoon over the last 4 centuries, we set up a novel framework for a synthetic, yet reliable, description of erosion events in tidal systems.
Davide Tognin, Andrea D'Alpaos, Luigi D'Alpaos, Andrea Rinaldo, and Luca Carniello
Earth Surf. Dynam., 12, 201–218, https://doi.org/10.5194/esurf-12-201-2024, https://doi.org/10.5194/esurf-12-201-2024, 2024
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Reliable quantification of sediment transport processes is necessary to understand the fate of shallow tidal environments. Here we present a framework for the description of suspended sediment dynamics to quantify deposition in the long-term modelling of shallow tidal systems. This characterization, together with that of erosion events, allows one to set up synthetic, yet reliable, models for the long-term evolution of tidal landscapes.
Emma L. S. Graf, Hugh D. Sinclair, Mikaël Attal, Boris Gailleton, Basanta Raj Adhikari, and Bishnu Raj Baral
Earth Surf. Dynam., 12, 135–161, https://doi.org/10.5194/esurf-12-135-2024, https://doi.org/10.5194/esurf-12-135-2024, 2024
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Using satellite images, we show that, unlike other examples of earthquake-affected rivers, the rivers of central Nepal experienced little increase in sedimentation following the 2015 Gorkha earthquake. Instead, a catastrophic flood occurred in 2021 that buried towns and agricultural land under up to 10 m of sediment. We show that intense storms remobilised glacial sediment from high elevations causing much a greater impact than flushing of earthquake-induced landslides.
Mohamad Nasr, Adele Johannot, Thomas Geay, Sebastien Zanker, Jules Le Guern, and Alain Recking
Earth Surf. Dynam., 12, 117–134, https://doi.org/10.5194/esurf-12-117-2024, https://doi.org/10.5194/esurf-12-117-2024, 2024
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Hydrophones are used to monitor sediment transport in the river by listening to the acoustic noise generated by particle impacts on the riverbed. However, this acoustic noise is modified by the river flow and can cause misleading information about sediment transport. This article proposes a model that corrects the measured acoustic signal. Testing the model showed that the corrected signal is better correlated with bedload flux in the river.
Byungho Kang, Rusty A. Feagin, Thomas Huff, and Orencio Durán Vinent
Earth Surf. Dynam., 12, 105–115, https://doi.org/10.5194/esurf-12-105-2024, https://doi.org/10.5194/esurf-12-105-2024, 2024
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We provide a detailed characterization of the frequency, intensity and duration of flooding events at a site along the Texas coast. Our analysis demonstrates the suitability of relatively simple wave run-up models to estimate the frequency and intensity of coastal flooding. Our results validate and expand a probabilistic model of coastal flooding driven by wave run-up that can then be used in coastal risk management in response to sea level rise.
Shunsuke Oya, Fumitoshi Imaizumi, and Shoki Takayama
Earth Surf. Dynam., 12, 67–86, https://doi.org/10.5194/esurf-12-67-2024, https://doi.org/10.5194/esurf-12-67-2024, 2024
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The monitoring of pore water pressure in fully and partly saturated debris flows was performed at Ohya landslide scar, central Japan. The pore water pressure in some partly saturated flows greatly exceeded the hydrostatic pressure. The depth gradient of the pore water pressure in the lower part of the flow was generally higher than the upper part of the flow. We conclude that excess pore water pressure is present in many debris flow surges and is an important mechanism in debris flow behavior.
Gabriele Barile, Marco Redolfi, and Marco Tubino
Earth Surf. Dynam., 12, 87–103, https://doi.org/10.5194/esurf-12-87-2024, https://doi.org/10.5194/esurf-12-87-2024, 2024
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River bifurcations often show the closure of one branch (avulsion), whose causes are still poorly understood. Our model shows that when one branch stops transporting sediments, the other considerably erodes and captures much more flow, resulting in a self-sustaining process. This phenomenon intensifies when increasing the length of the branches, eventually leading to branch closure. This work may help to understand when avulsions occur and thus to design sustainable river restoration projects.
Rémi Bossis, Vincent Regard, Sébastien Carretier, and Sandrine Choy
EGUsphere, https://doi.org/10.5194/egusphere-2023-3020, https://doi.org/10.5194/egusphere-2023-3020, 2024
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The erosion of rocky coasts occurs episodically through wave action and landslides, constituting a major natural hazard. Documenting the factors that control the coastal retreat rate over millennia is fundamental to evidencing any change in time. However, the known rates to date are essentially representative of the last few decades. Here, we present a new method using the concentration of an isotope, 10Be in sediment eroded from the cliff to quantify its retreat rate averaged over millennia.
Dieter Rickenmann
Earth Surf. Dynam., 12, 11–34, https://doi.org/10.5194/esurf-12-11-2024, https://doi.org/10.5194/esurf-12-11-2024, 2024
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Field measurements of the bedload flux with a high temporal resolution in a steep mountain stream were used to analyse the transport fluctuations as a function of the flow conditions. The disequilibrium ratio, a proxy for the solid particle concentration in the flow, was found to influence the sediment transport behaviour, and above-average disequilibrium conditions – associated with a larger sediment availability on the streambed – substantially affect subsequent transport conditions.
Cited articles
Akçar, N., Deline, P., Ivy-Ochs, S., Alfimov, V., Hajdas, I., Kubik, P.
W., Christl, M., and Schlüchter, C.: The AD 1717 rock avalanche deposits
in the upper Ferret Valley (Italy): A dating approach with cosmogenic
10Be, J. Quat. Sci., 27, 383–392, https://doi.org/10.1002/jqs.1558, 2012.
Akçar N., Ivy-Ochs S., Alfimov V., Schlunegger F., Claude A., Reber R.,
Christl M., Vockenhuber C., Dehnert A., Meinert R., and Schlüchter C.:
Isochron-burial dating of glaciofluvial deposits: primary results from the
Alps, Earth Surf. Proc. Land., 42, 2414–2425,
https://doi.org/10.1002/esp.4201, 2017.
Baroni, C., Gennaro, S., Cristina, M., Ivy-ochs, S., Christl, M., Cerrato,
R., and Orombelli, G.: Last Lateglacial glacier advance in the Gran Paradiso
Group reveals relatively drier climatic conditions established in the
Western Alps since at least the Younger Dryas, Quat. Sci. Rev., 255, 106815,
https://doi.org/10.1016/j.quascirev.2021.106815, 2021.
Bartolini, C. and Fontanelli, K.: Present versus long term sediment yield to
the Adriatic Sea and the reliability of gauging stations data,
B. Soc. Geol. Ital., 128, 655–667,
https://doi.org/10.3301/IJG.2009.128.3.655, 2009.
Bartolini, C., Caputo, R., and Pieri, M.: Pliocene-Quaternary sedimentation
in the Northern Apennine foredeep and related denudation, Geol. Mag.,
133, 255–273, https://doi.org/10.1017/s0016756800009006, 1996.
Bierman, P. and Steig, E. J.: Estimating rates of denudation using cosmogenic
isotope abundances in sediment, Earth Surf. Proc. Land., 21,
125–139, https://doi.org/10.1002/(SICI)1096-9837(199602)21:2<125::AID-ESP511>3.0.CO;2-8, 1996.
Binnie, S. A., Phillips, W. M., Summerfield, M. A., and Fifield, L. K.: Tectonic
uplift, threshold hillslopes, and denudation rates in a developing mountain
range, Geology, 35, 743–746, https://doi.org/10.1130/G23641A.1, 2007.
Bookhagen, B. and Strecker, M. R.: Spatiotemporal trends in erosion rates
across a pronounced rainfall gradient: Examples from the southern Central
Andes, Earth Planet. Sci. Lett., 327–328, 97–110,
https://doi.org/10.1016/j.epsl.2012.02.005, 2012.
Braucher, R., Merchel, S., Borgomano, J., and Bourlès, D. L.: Production of cosmogenic radionuclides at great depth: a multi element approach, Earth Planet. Sci. Lett., 309, 1–9, https://doi.org/10.1016/j.epsl.2011.06.036, 2011.
Brocklehurst, S. H. and Whipple, K. X.: Hypsometry of glaciated landscapes,
Earth Surf. Proc. Land., 29, 907–926, https://doi.org/10.1002/esp.1083, 2004.
Brown, E. T., Stallard, R. F., Larsen, M. C., Raisbeck, G. M., and Yiou, F.:
Denudation rates determined from the accumulation of in situ-produced
10Be in the Luquillo Experimental Forest, Puerto Rico, Earth Planet.
Sci. Lett., 129, 193–202, https://doi.org/10.1016/0012-821X(94)00249-X, 1995.
Burbank, D. W., Leland, J., Fielding, E., Anderson, R. S., Brozovic, N., Reid,
M. R., and Duncan, C.: Bedrock incision, rock uplift and threshold hillslopes in
the northwestern Himalayas, Nature, 379, 505–510, https://doi.org/10.1038/379505a0,
1996.
Carretier, S., Regard, V., Vassallo, R., Martinod, J., Christophoul, F.,
Gayer, E., Audin, L., and Lagane, C.: A note on 10Be-derived mean
erosion rates in catchments with heterogeneous lithology: Examples from the
western Central Andes, Earth Surf. Proc. Land., 40, 1719–1729,
https://doi.org/10.1002/esp.3748, 2015.
Champagnac, J. D., Schlunegger, F., Norton, K., von Blanckenburg, F.,
Abbühl, L. M., and Schwab, M.: Erosion-driven uplift of the modern
Central Alps, Tectonophysics, 474, 236–249,
https://doi.org/10.1016/j.tecto.2009.02.024, 2009.
Champagnac, J. D., Valla, P. G., and Herman, F.: Late-Cenozoic relief
evolution under evolving climate: A review, Tectonophysics, 614, 44–65,
https://doi.org/10.1016/j.tecto.2013.11.037, 2014.
Charreau, J., Blard, P. H., Zumaque, J., Martin, L. C. P., Delobel, T., and
Szafran, L.: Basinga: A cell-by-cell GIS toolbox for computing basin average
scaling factors, cosmogenic production rates and denudation rates, Earth Surf. Proc. Land., 44, 2349–2365, https://doi.org/10.1002/esp.4649, 2019.
Chittenden, H., Delunel, R., Schlunegger, F., Akçar, N., and Kubik, P.:
The influence of bedrock orientation on the landscape evolution, surface
morphology and denudation (10Be) at the Niesen, Switzerland, Earth Surf. Proc. Land., 39, 1153–1166, https://doi.org/10.1002/esp.3511, 2014.
Christl, M., Vockenhuber, C., Kubik, P. W., Wacker, L., Lachner, J.,
Alfimov, V., and Synal, H. A.: The ETH Zurich AMS facilities: Performance
parameters and reference materials, Nucl. Instruments Methods Phys. Res.
Sect. B Beam Interact. with Mater. Atoms, 294, 29–38,
https://doi.org/10.1016/j.nimb.2012.03.004, 2013.
Clark, P. U., Dyke, A. S., Shakun, J. D., Carlson, A. E., Clark, J., Wohlfarth,
B., Mitrovica, J. X., Hostetler, S. W., and McCabe, A. M.: The Last Glacial
Maximum, Science 325, 710–714, https://doi.org/10.1126/science.1172873, 2009.
Codilean, A. T.: Calculation of the cosmogenic nuclide production topographic
shielding scaling factor for large areas using DEMs, Earth Surf. Proc.
Land., 31, 785–794, https://doi.org/10.1002/esp.1336, 2006.
Codilean, A. T., Munack, H., Cohen, T. J., Saktura, W. M., Gray, A., and Mudd, S. M.: OCTOPUS: an open cosmogenic isotope and luminescence database, Earth Syst. Sci. Data, 10, 2123–2139, https://https://doi.org/10.5194/essd-10-2123-2018, 2018.
Cruz Nunes, F., Delunel, R., Schlunegger, F., Akçar, N., and Kubik, P. W.: Bedrock bedding, landsliding and erosional budgets in the Central European Alps, Terra Nova, 27, 370–378, https://doi.org/10.1111/ter.12169, 2015.
Dal Piaz, G. V., Gianotti, F., Monopoli, B., Pennacchioni, G., Tartarotti,
P., and Schiavo, A.: Carta Geologica d'Italia – Foglio 091, Chatillon, Regione Autonoma Valle d'Aosta, 1–152, 2008.
Deline, P., Gardent, M., Magnin, F., and Ravanel, L.: The morphodynamics of the Mont Blanc massif in a changing cryosphere: a comprehensive review, Geogr. Ann. A., 94, 265–283, https://doi.org/10.1111/j.1468-0459.2012.00467.x, 2012.
Deline, P., Akçar, N., Ivy-Ochs, S., and Kubik, P. W.: Repeated Holocene rock
avalanches onto the Brenva Glacier, Mont Blanc massif, Italy: A chronology,
Quat. Sci. Rev., 126, 186–200,
https://doi.org/10.1016/j.quascirev.2015.09.004, 2015.
Delunel, R., van der Beek, P. A., Carcaillet, J., Bourlès, D. L., and
Valla, P. G.: Frost-cracking control on catchment denudation rates: Insights
from in situ produced 10Be concentrations in stream sediments
(Ecrins-Pelvoux massif, French Western Alps), Earth Planet. Sci. Lett.,
293, 72–83, https://doi.org/10.1016/j.epsl.2010.02.020, 2010.
Delunel, R., Van der Beek, P. A., Bourlès, D. L., Carcaillet, J., and
Schlunegger, F.: Transient sediment supply in a high-altitude Alpine
environment evidenced through a 10Be budget of the Etages catchment
(French Western Alps), Earth Surf. Proc. Land., 39,
890–899, https://doi.org/10.1002/esp.3494, 2014.
Delunel, R., Schlunegger, F., Valla, P. G., Dixon, J., Glotzbach, C., Hippe,
K., Kober, F., Molliex, S., Norton, K. P., Salcher, B., Wittmann, H.,
Akçar, N., and Christl, M.: Late-Pleistocene catchment-wide denudation
patterns across the European Alps, Earth-Sci. Rev., 211, 103407, https://doi.org/10.1016/j.earscirev.2020.103407, 2020.
DiBiase, R. A.: Short communication: Increasing vertical attenuation length of cosmogenic nuclide production on steep slopes negates topographic shielding corrections for catchment erosion rates, Earth Surf. Dynam., 6, 923–931, https://doi.org/10.5194/esurf-6-923-2018, 2018.
DiBiase, R. A., Heimsath, A. M., and Whipple, K. X.: Hillslope response to
tectonic forcing in threshold landscapes, Earth Surf. Proc. Land.,
37, 855–865, https://doi.org/10.1002/esp.3205, 2012.
Diolaiuti, G. A., Bocchiola, D., Vagliasindi, M., D'Agata, C., and Smiraglia,
C.: The 1975–2005 glacier changes in Aosta Valley (Italy) and the relations
with climate evolution, Prog. Phys. Geogr., 36, 764–785,
https://doi.org/10.1177/0309133312456413, 2012.
Dixon, J. L., von Blanckenburg, F., Stüwe, K., and Christl, M.: Glaciation's topographic control on Holocene erosion at the eastern edge of the Alps, Earth Surf. Dynam., 4, 895–909, https://https://doi.org/10.5194/esurf-4-895-2016, 2016.
Dunne, J., Elmore, D., and Muzikar, P.: Scaling factors for the rates of
production of cosmogenic nuclides for geometric shielding and attenuation at
depth on sloped surfaces, Geomorphology, 27, 3–11,
https://doi.org/10.1016/S0169-555X(98)00086-5, 1999.
Gavrilovic, S.: Bujicni tokovi i erozija (Torrents and erosion), Beograd, Serbia, Gradevinski Kalendar, 1976.
Glotzbach, C., Van Der Beek, P., Carcaillet, J., and Delunel, R.: Deciphering
the driving forces of erosion rates on millennial to million-year timescales
in glacially impacted landscapes: An example from the Western Alps, J.
Geophys. Res.-Earth, 118, 1491–1515, https://doi.org/10.1002/jgrf.20107, 2013.
Glotzbach, C., Röttjer, M., Hampel, A., Hetzel, R., and Kubik, P.W.: Quantifying the impact of former glaciation on catchment‐wide denudation rates derived from cosmogenic 10Be, Terra Nova, 26, 186–194, https://doi.org/10.1111/ter.12085, 2014.
Godard, V., Bourlès, D. L., Spinabella, F., Burbank, D. W., Bookhagen, B., Fisher, G. B., Moulin, A., and Léanni, L.: Dominance of tectonics over climate in Himalayan denudation, Geology, 42, 243–246, https://doi.org/10.1130/G35342.1, 2014.
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, https://doi.org/10.1086/629823,
1996.
Granger, D. E. and Schaller, M.: Cosmogenic nuclides and erosion at the watershed scale, Elements, 10, 369–373, https://doi.org/10.2113/gselements.10.5.369, 2014.
Guillon, H., Mugnier, J. L., Buoncristiani, J. F., Carcaillet, J., Godon, C., Prud'Homme, C., Van der Beek, P., and Vassallo, R.: Improved discrimination of subglacial and periglacial erosion using 10Be concentration measurements in subglacial and supraglacial sediment load of the Bossons glacier (Mont Blanc massif, France), Earth Surf. Process. Landf., 40, 1202–1215, https://doi.org/10.1002/esp.3713, 2015.
Herman, F., Seward, D., Valla, P. G., Carter, A., Kohn, B., Willett, S. D., and Ehlers, T. A.: Worldwide acceleration of mountain erosion under a cooling climate, Nature, 504, 423–426, https://doi.org/10.1038/nature12877, 2013.
Hinderer, M., Kastowski, M., Kamelger, A., Bartolini, C., and Schlunegger,
F.: River loads and modern denudation of the Alps – A review, Earth Sci.
Rev., 118, 11–44, https://doi.org/10.1016/j.earscirev.2013.01.001, 2013.
Isotta, F. A., Frei, C., Weilguni, V., Perčec Tadić, M.,
Lassègues, P., Rudolf, B., Pavan, V., Cacciamani, C., Antolini, G.,
Ratto, S. M., Munari, M., Micheletti, S., Bonati, V., Lussana, C., Ronchi,
C., Panettieri, E., Marigo, G., and Vertačnik, G.: The climate of daily
precipitation in the Alps: Development and analysis of a high-resolution
grid dataset from pan-Alpine rain-gauge data, Int. J. Climatol., 34,
1657–1675, https://doi.org/10.1002/joc.3794, 2014.
Kirchner, J. W., Finkel, R. C., Riebe, C. S., Granger, D. E., Clayton, J.
L., King, J. G., and Megahan, W. F.: Mountain erosion over 10 yr, 10 k.y.,
and 10 m.y. time scales, Geology, 29, 591–594,
https://doi.org/10.1130/0091-7613(2001)029<0591:MEOYKY>2.0.CO;2,
2001.
Korup, O. and Schlunegger, F.: Bedrock landsliding, river incision, and
transience of geomorphic hillslope-channel coupling: Evidence from inner
gorges in the Swiss Alps. J. Geophys. Res.-Earth,
112, F0302, https://doi.org/10.1029/2006JF000710, 2007.
Kühni, A. and Pfiffner, O. A.: The relief of the Swiss Alps and adjacent
areas and its relation to lithology and structure: Topographic analysis from
a 250 m DEM, Geomorphology, 41, 285–307,
https://doi.org/10.1016/S0169-555X(01)00060-5, 2001.
Lal, D.: Cosmic ray labeling of erosion surfaces: in situ nuclide production rates and erosion models, Earth Planet. Sci. Lett., 104, 424–43, https://doi.org/10.1016/0012-821X(91)90220-C, 1991.
Lupker, M., Blard, P. H., Lavé, J., France-Lanord, C., Leanni, L.,
Puchol, N., Charreau, J., and Bourlès, D.: 10Be-derived Himalayan
denudation rates and sediment budgets in the Ganga basin, Earth Planet. Sci.
Lett., 333–334, 146–156, https://doi.org/10.1016/j.epsl.2012.04.020, 2012.
Malusà, M. G., Polino, R., Zattin, M., Bigazzi, G., Martin, S., and
Piana, F.: Miocene to Present differential exhumation in the Western Alps:
Insights from fission track thermochronology, Tectonics, 24, 1–23,
https://doi.org/10.1029/2004TC001782, 2005.
Martin, L. C. P., Blard, P.-H., Balco, G., Lavé, J., Delunel, R.,
Lifton, N., and Laurent, V.: The CREp program and the ICE-D production rate
calibration database: A fully parameterizable and updated online tool to
compute cosmic-ray exposure ages, Quat. Geochronol., 38, 25–49,
https://doi.org/10.1016/J.QUAGEO.2016.11.006, 2017.
Maxeiner, S., Synal, H. A., Christl, M., Suter, M., Müller, A., and
Vockenhuber, C.: Proof-of-principle of a compact 300 kV multi-isotope AMS
facility, Nucl. Instruments Methods Phys. Res. Sect. B Beam Interact. with
Mater. Atoms, 439, 84–89, https://doi.org/10.1016/j.nimb.2018.11.028,
2019.
Molnar, P., Anderson, R. S., and Anderson, S. P.: Tectonics, fracturing of rock, and erosion, J. Geophys. Res., 112, https://doi.org/10.1029/2005JF000433, 2007.
Montgomery, D. R. and Brandon, M. T.: Topographic controls on erosion rates
in tectonically active mountain ranges, Earth Planet. Sci. Lett., 201, 481–489, https://doi.org/10.1016/S0012-821X(02)00725-2, 2002.
Moon, S., Page Chamberlain, C., Blisniuk, K., Levine, N., Rood, D. H., and
Hilley, G. E.: Climatic control of denudation in the deglaciated landscape
of the Washington Cascades, Nat. Geosci., 4, 469–473,
https://doi.org/10.1038/ngeo1159, 2011.
Muscheler, R., Beer, J., Kubik, P. W., and Synal, H. A.: Geomagnetic field
intensity during the last 60,000 years based on 10Be and 36Cl from
the Summit ice cores and 14C, Quat. Sci. Rev., 24, 1849–1860,
https://doi.org/10.1016/j.quascirev.2005.01.012, 2005.
Mudd, S. M., Harel, M.-A., Hurst, M. D., Grieve, S. W. D., and Marrero, S. M.: The CAIRN method: automated, reproducible calculation of catchment-averaged denudation rates from cosmogenic nuclide concentrations, Earth Surf. Dynam., 4, 655–674, https://doi.org/10.5194/esurf-4-655-2016, 2016.
Norton, K. P., Abbühl, L. M., and Schlunegger, F.: Glacial conditioning
as an erosional driving force in the Central Alps, Geology, 38, 655–658,
https://doi.org/10.1130/G31102.1, 2010.
Norton, K. P., von Blanckenburg, F., DiBiase, R., Schlunegger, F., and Kubik,
P. W.: Cosmogenic 10Be-derived denudation rates of the Eastern and
Southern European Alps, Int. J. Earth Sci., 100, 1163–1179,
https://doi.org/10.1007/s00531-010-0626-y, 2011.
Pedersen, V. K. and Egholm, D. L.: Glaciations in response to climate
variations preconditioned by evolving topography, Nature, 493,
206–210, https://doi.org/10.1038/nature11786, 2013.
Peizhen, Z., Molnar, P., and Downs, W. R.: Increased sedimentation rates and grain sizes 2–4 Myr ago due to the influence of climate change on erosion rates, Nature, 410, 891–897, https://doi.org/10.1038/35073504, 2001.
Perello, P., Gianotti, F., and Monopoli, B.: Carta Geologica d'Italia –
Foglio 089, Courmayeur, Regione Autonoma Valle d'Aosta, 2008.
Polino, R., Malusà, M. G., Martin, S., Carraro, F., Gianotti, F., and
Bonetto, F.: Carta Geologica d'Italia – Foglio 090, Aosta, 3, Regione Autonoma Valle d'Aosta, 2008.
Pitlick, J., Recking, A., Liebault, F., Misset, C., Piton, G., and
Vazquez-Tarrio, D.: Sediment production in French Alpine rivers, Water
Resour. Res., 57, e2021WR030470. https://doi.org/10.1029/2021WR030470, 2021.
Portenga, E. W. and Bierman, P. R.: Understanding earth's eroding surface
with 10Be, GSA Today, 21, 4–10, https://doi.org/10.1130/G111A.1, 2011.
Ravanel, L., Allignol, F., Deline, P., Gruber, S., and Ravello, M.: Rock
falls in the Mont Blanc Massif in 2007 and 2008, Landslides, 7, 493–501,
https://doi.org/10.1007/s10346-010-0206-z, 2010.
Resentini, A. and Malusà, M. G.: Sediment budgets by detrital apatite fi
ssion-Track dating (Rivers Dora Baltea and Arc, Western Alps), Spec. Pap.
Geol. Soc. Am., 487, 125–140, https://doi.org/10.1130/2012.2487(08), 2012.
Salcher, B. C., Kober, F., Kissling, E., and Willett, S. D.: Glacial impact on short- wavelength topography and long-lasting effects on the denudation of a deglaciated mountain range, Glob. Planet. Chang., 115, 59–70, https://doi.org/10.1016/j.gloplacha.2014.01.002, 2014.
Savi, S., Norton, K., Picotti, V., Brardinoni, F., Akçar, N., Kubik, P.
W., Delunel, R., and Schlunegger, F.: Effects of sediment mixing on 10Be
concentrations in the Zielbach catchment, central-eastern Italian Alps,
Quat. Geochronol., 19, 148–162, https://doi.org/10.1016/j.quageo.2013.01.006, 2014.
Schaller, M., Von Blanckenburg, F., Hovius, N., and Kubik, P. W.: Large-scale
erosion rates from in situ-produced cosmogenic nuclides in European river
sediments, Earth Planet. Sci. Lett., 188, 441–458,
https://doi.org/10.1016/S0012-821X(01)00320-X, 2001.
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, https://doi.org/10.1130/G33806.1, 2013.
Schlunegger, F. and Hinderer, M.: Pleistocene/Holocene climate change,
reestablishment of fluvial drainage network and increase in relief in the
Swiss Alps, Terra Nova, 15, 88–95, https://doi.org/10.1046/j.1365-3121.2003.00469.x,
2003.
Schmid, S. M., Fügenschuh, B., Kissling, E., and Schuster, R.: Tectonic map
and overall architecture of the Alpine orogen, Eclogae Geol. Helv.,
97, 93–117, https://doi.org/10.1007/s00015-004-1113-x, 2004.
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.
Serra, E., Valla, P. G., Gribenski, N., Carcaillet, and Deline, P.: Post-LGM
glacial and geomorphic evolution of the Dora Baltea valley (western Italian
Alps), Quat. Sci. Rev., 282, 107446, https://doi.org/10.1016/j.quascirev.2022.107446,
2022.
Small, E. E. and Anderson, R. S.: Pleistocene relief production in Laramide
mountain ranges, western United States, Geology, 26, 123–126,
https://doi.org/10.1130/0091-7613(1998)026<1150:PRPILM>2.3.CO;2,
1998.
Sternai, P., Sue, C., Husson, L., Serpelloni, E., Becker, T. W., Willett, S.
D., Faccenna, C., Di Giulio, A., Spada, G., Jolivet, L., Valla, P., Petit,
C., Nocquet, J. M., Walpersdorf, A., and Castelltort, S.: Present-day uplift
of the European Alps: Evaluating mechanisms and models of their relative
contributions, Earth Sci. Rev., 190, 589–604,
https://doi.org/10.1016/j.earscirev.2019.01.005, 2019.
Stone, J. O.: Air pressure and cosmogenic isotope production, J. Geophys. Res.-Sol. Ea., 105, 23753–23759, https://doi.org/10.1029/2000JB900181, 2000.
Stutenbecker, L., Costa, A., and Schlunegger, F.: Lithological control on the landscape form of the upper Rhône Basin, Central Swiss Alps, Earth Surf. Dynam., 4, 253–272, https://doi.org/10.5194/esurf-4-253-2016, 2016.
Stutenbecker, L., Delunel, R., Schlunegger, F., Silva, T. A.,
Šegvić, B., Girardclos, S., Bakker, M., Costa, A., Lane, S. N.,
Loizeau, J. L., Molnar, P., Akçar, N., and Christl, M.: Reduced sediment
supply in a fast eroding landscape? A multi-proxy sediment budget of the
upper Rhône basin, Central Alps, Sediment. Geol., 375, 105–119,
https://doi.org/10.1016/j.sedgeo.2017.12.013, 2018.
Uppala, S. M., Kållberg, P. W., Simmons, A. J., Andrae, U., da Costa
Bechtold, V., Fiorino, M., Gibson, J. K., Haseler, J., Hernandez, A., Kelly,
G. A., Li, X., Onogi, K., Saarinen, S., Sokka, N., Allan, R. P., Andersson,
E., Arpe, K., Balmaseda, M. A., Beljaars, A. C. M., van de Berg, L., Bidlot,
J., Bormann, N., Caires, S., Chevallier, F., Dethof, A., Dragosavac, M.,
Fisher, M., Fuentes, M., Hagemann, S., Hólm, E., Hoskins, B. J.,
Isaksen, L., Janssen, P. A. E. M., Jenne, R., McNally, A. P., Mahfouf, J.
F., Morcrette, J. J., Rayner, N. A., Saunders, R. W., Simon, P., Sterl, A.,
Trenberth, K. E., Untch, A., Vasiljevic, D., Viterbo, P., and Woollen, J.:
The ERA-40 re-analysis, Q. J. Roy. Meteor. Soc., 131, 2961–3012,
https://doi.org/10.1256/qj.04.176, 2005.
Valla, P. G., van der Beek, P. A., and Carcaillet, J.: Dating bedrock gorge
incision in the French Western Alps (Ecrins-Pelvoux massif) using cosmogenic
10Be, Terra Nov., 22, 18–25, https://doi.org/10.1111/j.1365-3121.2009.00911.x,
2010.
Valla, P. G., Shuster, D. L., and Van Der Beek, P. A.: Significant increase
in relief of the European Alps during mid-Pleistocene glaciations, Nat.
Geosci., 4, 688–692, https://doi.org/10.1038/ngeo1242, 2011.
Valla, P. G., Sternai, P., and Fox, M.: How Climate, Uplift and Erosion Shaped the Alpine Topography, Elements, 17, 41–46, https://doi.org/10.2138/gselements.17.1.41, 2021.
Vezzoli, G.: Erosion in the Western Alps (Dora Baltea Basin): 2. Quantifying
sediment yield, Sediment. Geol., 171, 247–259,
https://doi.org/10.1016/j.sedgeo.2004.05.018, 2004.
Vezzoli, G., Garzanti, E., and Monguzzi, S. Erosion in the western Alps (Dora
Baltea basin): 1. Quantifying sediment provenance, Sediment. Geol.,
171, 227–246, https://doi.org/10.1016/j.sedgeo.2004.05.017, 2004.
von Blanckenburg, F.: The control mechanisms of erosion and weathering at
basin scale from cosmogenic nuclides in river sediment, Earth Planet. Sci.
Lett., 237, 462–479, https://doi.org/10.1016/j.epsl.2005.06.030, 2005.
Willenbring, J. K., Codilean, A. T., and Mcelroy, B.: Earth is (mostly) flat: apportionment of the flux of
continental sediment over millennial time scales, Geology, 41, 343–346, https://doi.org/10.1130/G33918.1, 2013.
Wittmann, H., von Blanckenburg, F., Kruesmann, T., Norton, K. P., and Kubik,
P. W.: Relation between rock uplift and denudation from cosmogenic nuclides
in river sediment in the Central Alps of Switzerland, J. Geophys. Res.-Earth, 112, 1–20, https://doi.org/10.1029/2006JF000729, 2007.
Wittmann, H., Malusà, M. G., Resentini, A., Garzanti, E., and Niedermann,
S.: The cosmogenic record of mountain erosion transmitted across a foreland
basin: Source-to-sink analysis of in situ 10Be, 26Al and 21Ne
in sediment of the Po river catchment, Earth Planet. Sci. Lett., 452,
258–271, https://doi.org/10.1016/j.epsl.2016.07.017, 2016.
Short summary
Alpine landscapes are transformed by several erosion processes. 10Be concentrations measured in river sediments at the outlet of a basin represent a powerful tool to quantify how fast the catchment erodes. We measured erosion rates within the Dora Baltea catchments (western Italian Alps). Our results show that erosion is governed by topography, bedrock resistance and glacial imprint. The Mont Blanc massif has the highest erosion and therefore dominates the sediment flux of the Dora Baltea river.
Alpine landscapes are transformed by several erosion processes. 10Be concentrations measured in...
