Articles | Volume 4, issue 1
https://doi.org/10.5194/esurf-4-103-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/esurf-4-103-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
25 Jan 2016
Research article |
| 25 Jan 2016
Short-term velocity variations at three rock glaciers and their relationship with meteorological conditions
V. Wirz
CORRESPONDING AUTHOR
Department of Geography, University of Zurich, Zurich, Switzerland
S. Gruber
Department of Geography and Environmental Studies, Carleton University, Ottawa, Canada
R. S. Purves
Department of Geography, University of Zurich, Zurich, Switzerland
J. Beutel
Computer Engineering and Networks Laboratory, ETH, Zurich, Switzerland
I. Gärtner-Roer
Department of Geography, University of Zurich, Zurich, Switzerland
S. Gubler
Federal Office of Meteorology and Climatology MeteoSwiss, Zurich, Switzerland
Department of Geography, University of Zurich, Zurich, Switzerland
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The extent and distribution of permafrost in the mountainous parts of the Hindu Kush Himalayan (HKH) region are largely unknown. This article provides a first-order assessment of the two available permafrost maps in the HKH region based on the mapping of rock glaciers in Google Earth. The Circum-Arctic Map of Permafrost and Ground Ice Conditions does not reproduce mapped conditions in the HKH region adequately, whereas the Global Permafrost Zonation Index does so with more success.
A. Hasler, M. Geertsema, V. Foord, S. Gruber, and J. Noetzli
The Cryosphere, 9, 1025–1038, https://doi.org/10.5194/tc-9-1025-2015, https://doi.org/10.5194/tc-9-1025-2015, 2015
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In this paper we describe surface and thermal offsets derived from distributed measurements at seven field sites in British Columbia. Key findings are i) a small variation of the surface offsets between surface types; ii) small thermal offsets at all sites; iii) a clear influence of the micro-topography due to snow cover effects; iv) a north--south difference of the surface offset of 4°C in vertical bedrock and of 1.5–-3°C on open gentle slopes; v) only small macroclimatic differences.
J. Fiddes, S. Endrizzi, and S. Gruber
The Cryosphere, 9, 411–426, https://doi.org/10.5194/tc-9-411-2015, https://doi.org/10.5194/tc-9-411-2015, 2015
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This paper demonstrates a new land surface modelling approach that uses globally available data sets to generate high-resolution simulation results of land surface processes. We successfully simulate a highly resolution-dependent variable, ground surface temperatures, over the entire Swiss Alps at high resolution. We use a large evaluation data set to test the model. We suggest that this scheme represents a useful step in application of numerical models over large areas in heterogeneous terrain.
S. Endrizzi, S. Gruber, M. Dall'Amico, and R. Rigon
Geosci. Model Dev., 7, 2831–2857, https://doi.org/10.5194/gmd-7-2831-2014, https://doi.org/10.5194/gmd-7-2831-2014, 2014
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GEOtop is a fine scale grid-based simulator that represents the heat and water budgets at and below the soil surface, reproduces the highly non-linear interactions between the water and energy balance during soil freezing and thawing and simulates snow cover. The core components of GEOtop 2.0. are described. Based on a synthetic simulation, it is shown that the interaction of processes represented in GEOtop 2.0. can result in phenomena that are relevant for applications involving frozen soils.
V. Wirz, J. Beutel, S. Gruber, S. Gubler, and R. S. Purves
Nat. Hazards Earth Syst. Sci., 14, 2503–2520, https://doi.org/10.5194/nhess-14-2503-2014, https://doi.org/10.5194/nhess-14-2503-2014, 2014
J. Veitinger, B. Sovilla, and R. S. Purves
The Cryosphere, 8, 547–569, https://doi.org/10.5194/tc-8-547-2014, https://doi.org/10.5194/tc-8-547-2014, 2014
J. Fiddes and S. Gruber
Geosci. Model Dev., 7, 387–405, https://doi.org/10.5194/gmd-7-387-2014, https://doi.org/10.5194/gmd-7-387-2014, 2014
E. M. Enderlin, I. M. Howat, and A. Vieli
The Cryosphere, 7, 1579–1590, https://doi.org/10.5194/tc-7-1579-2013, https://doi.org/10.5194/tc-7-1579-2013, 2013
S. Gubler, S. Endrizzi, S. Gruber, and R. S. Purves
Geosci. Model Dev., 6, 1319–1336, https://doi.org/10.5194/gmd-6-1319-2013, https://doi.org/10.5194/gmd-6-1319-2013, 2013
E. M. Enderlin, I. M. Howat, and A. Vieli
The Cryosphere, 7, 1007–1015, https://doi.org/10.5194/tc-7-1007-2013, https://doi.org/10.5194/tc-7-1007-2013, 2013
Related subject area
Physical: Geomorphology (including all aspects of fluvial, coastal, aeolian, hillslope and glacial geomorphology)
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
Geomorphic indices for unveiling fault segmentation and tectono-geomorphic evolution with insights into the impact of inherited topography, Ulsan Fault Zone, Korea
How water, temperature and seismicity control the preparation of massive rock slope failure (Hochvogel, DE/AT)
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
The impact of bedrock meander cutoffs on 50 ka-year-scale incision rates, San Juan River, Utah
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
Using repeat UAV-based laser scanning and multispectral imagery to explore eco-geomorphic feedbacks along a river corridor
Numerical modelling of the evolution of a river reach with a complex morphology to help define future sustainable restoration decisions
Method to evaluate large-wood behavior in terms of the convection equation associated with sediment erosion and deposition
Effects of seasonal variations in vegetation and precipitation on catchment erosion rates along a climate and ecological gradient: insights from numerical modeling
On the use of convolutional deep learning to predict shoreline change
On the use of packing models for the prediction of fluvial sediment porosity
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
Spatial and temporal variations in rockwall erosion rates derived from cosmogenic 10Be in medial moraines at five valley glaciers around Pigne d'Arolla, Switzerland
Building a bimodal landscape: bedrock lithology and bed thickness controls on the morphology of Last Chance Canyon, New Mexico, USA
Geotechnical controls on erodibility in fluvial impact erosion
Linear-stability analysis of plane beds under flows with suspended loads
Estimating surface water availability in high mountain rock slopes using a numerical energy balance model
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.
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.
Johannes Leinauer, Michael Dietze, Sibylle Knapp, Riccardo Scandroglio, Maximilian Jokel, and Michael Krautblatter
EGUsphere, https://doi.org/10.5194/egusphere-2024-231, https://doi.org/10.5194/egusphere-2024-231, 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 four 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.
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.
Aaron T. Steelquist, Gustav B. Seixas, Mary L. Gillam, Sourav Saha, Seulgi Moon, and George E. Hilley
EGUsphere, https://doi.org/10.5194/egusphere-2024-71, https://doi.org/10.5194/egusphere-2024-71, 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 on 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.
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
Short summary
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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
Short summary
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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
Short summary
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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.
Koji Ohata, Hajime Naruse, and Norihiro Izumi
Earth Surf. Dynam., 11, 961–977, https://doi.org/10.5194/esurf-11-961-2023, https://doi.org/10.5194/esurf-11-961-2023, 2023
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We investigated the influence of sediment transport modes on the formation of bedforms using theoretical analysis. The results of the theoretical analysis were verified with published data of plane beds obtained by fieldwork and laboratory experiments. We found that suspended sand particles can promote the formation of plane beds on a fine-grained bed, which suggests that the presence of suspended particles suppresses the development of dunes under submarine sediment-laden gravity currents.
Matan Ben-Asher, Florence Magnin, Sebastian Westermann, Josué Bock, Emmanuel Malet, Johan Berthet, Ludovic Ravanel, and Philip Deline
Earth Surf. Dynam., 11, 899–915, https://doi.org/10.5194/esurf-11-899-2023, https://doi.org/10.5194/esurf-11-899-2023, 2023
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Quantitative knowledge of water availability on high mountain rock slopes is very limited. We use a numerical model and field measurements to estimate the water balance at a steep rock wall site. We show that snowmelt is the main source of water at elevations >3600 m and that snowpack hydrology and sublimation are key factors. The new information presented here can be used to improve the understanding of thermal, hydrogeological, and mechanical processes on steep mountain rock slopes.
Cited articles
Anderson, D., Tice, A., and McKim, H.: The unfrozen water and the apparent
specific heat capacity of frozen soils, in: Proceedings of the Second
International Conference on Permafrost, 13–28 July 1973, Washington, DC,
USA, 289–295, 1973.
Arenson, L., Hoelzle, M., and Springman, S.: Borehole deformation
measurements and internal structure of some rock glaciers in Switzerland,
Permafrost Periglac., 13, 117–135,
https://doi.org/10.1002/ppp.414, 2002.
Barsch, D.: Nature and importance of mass-wasting by rock glaciers in
alpine permafrost environments, Earth Surf. Proc. Land., 2, 231–245,
https://doi.org/10.1002/esp.3290020213, 1977.
Barsch, D.: Permafrost creep and rock glaciers, Permafrost Periglac., 3, 175–188,
https://doi.org/10.1002/ppp.561, 1992.
Barsch, D. and Hell, G.: Photogrammetrische Bewegungsmessungen am
Blockgletscher Murtèl I, Oberengadin, Schweizer Alpen, Zeitschrift
für Gletscherkunde und Glazialgeologie, 11, 111–142, 1975.
Baur, F.: Constructing confidence sets using rank statistics, J. Am. Stat. Assoc., 67, 687–690, 1972.
Bernknopf, R. L., Campbell, R. H., Brookshire, D. S., and Shapiro, C. D.: A
probabilistic approach to landslide hazard mapping in Cincinnati, Ohio, with
applications for economic evaluation, Bulletin of the Association of
Engineering Geologists, 25, 39–56, 1988.
Beutel, J., Buchli, B., Ferrari, F., Keller, M., Thiele, L., and
Zimmerling, M.: X-Sense: sensing in extreme environments, in: Proceedings of
Design, Automation and Test in Europe, 2011, 1–6, IEEE, Grenoble, France, 1460–1465,
2011.
Boeckli, L., Brenning, A., Gruber, S., and Noetzli, J.: Permafrost
distribution in the European Alps: calculation and evaluation of an index map
and summary statistics, The Cryosphere, 6, 807–820,
https://doi.org/10.5194/tc-6-807-2012, 2012.
Brenning, A. and Trombotto, D.: Logistic regression modeling of rock glacier
and glacier distribution: topographic and climatic controls in the semi-arid
Andes, Geomorphology, 81, 141–154,
https://doi.org/10.1016/j.geomorph.2006.04.003,
2006.
Buchli, B., Sutton, F., and Beutel, J.: GPS-equipped wireless sensor network
node for high-accuracy positioning applications, in: Wireless Sensor
Networks, Springer, Trento, Italy, 179–195, 2012.
Buchli, T., Merz, K., Zhou, X., Kinzelbach, W., and Springman, S.:
Characterization and monitoring of the Furggwanghorn rock glacier, Turtmann
valley, Switzerland: results from 2010 to 2012, Vadose Zone J., 12, 1–15,
https://doi.org/10.2136/vzj2012.0067,
2013.
Can, T., Nefeslioglu, H., Gokceoglu, C., Sonmez, H., and Duman, T.:
Susceptibility assessments of shallow earthflows triggered by heavy rainfall
at three catchments by logistic regression analyses, Geomorphology, 72,
250–271,
https://doi.org/10.1016/j.geomorph.2005.05.011,
2005.
Coe, J., Ellis, W., Godt, J., Savage, W., Savage, J., Michael, J.,
Kibler, J., Powers, P., Lidke, D., and Debray, S.: Seasonal movement of the
Slumgullion landslide determined from Global Positioning System surveys and
field instrumentation, Eng. Geol., 68, 67–101,
https://doi.org/10.1016/S0013-7952(02)00199-0,
2003.
Dach, R., Hugentobler, U., Fridez, P., and Meindl, M.: Bernese GPS Software,
Version 5.0, Astronomical Institute, University of Bern, Bern, Switzerland,
2007.
Delaloye, R., Kaufmann, M., Bodin, X., Hausmann, H.,
Ikeda, A., Kääb, A., Kellerer-Pirklbauer, A., Krainer, K.,
Lambiel, C., Mihajlovic, D., Roer, I., and Thibert, E.: Recent interannual
variations of rock glacier creep in the European Alps, in: Proceedings of the
9th International Conference on Permafrost, 28 June–3 July 2008, Fairbanks,
Alaska, USA, 343–348, 2008a.
Delaloye, R., Strozzi, T., Lambiel, C., Perruchoud, E., and Raetzo, H.:
Landslide-like development of rock glaciers detected with ERS-1/2 SAR
interferometry, in: Proceedings of the 8th International Conference on
Permafrost, 21–25 July 2003, Zurich, Switzerland, 26–30, 2008b.
Delaloye, R., Lambiel, C., and Gärtner-Roer, I.: Overview of rock glacier
kinematics research in the Swiss Alps, Geogr. Helv., 65, 135–145,
https://doi.org/10.5194/gh-65-135-2010, 2010.
Delaloye, R., Barboux, C., Morard, S., Abbet, D., and Gruber, V.: Rapidly
moving rock glaciers in Mattertal, in: Mattertal – ein Tal in Bewegung,
Publikation zur Jahrestagung der Schweizerischen Geomorphologischen
Gesellschaft, St. Niklaus, Switzerland, 21–31, 2013.
Francou, B. and Reynaud, L.: 10 year surficial velocities on a rock glacier
(Laurichard, French Alps), Permafrost Periglac., 3, 209–213,
https://doi.org/10.1002/ppp.3430030306,
1992.
Friendly, M.: Mosaic displays for multi-way contingency tables, J. Am. Stat. Assoc., 89, 190–200, 1994.
Goodrich, D., Faurres, J., Woolhiser, D., Lane, L., and Sorooshian, S.:
Measurement and analysis of small-scale convective storm rainfall
variability, J. Hydrol., 173, 283–308,
https://doi.org/10.1016/0022-1694(95)02703-R,
1995.
Graf, C., Deubelbeiss, Y., Bühler, Y., Meier, L., McArdell, B.,
Christen, M., and Bartelt, P.: Gefahrenkartierung Mattertal:
Grundlagenbeschaffung und numerische Modellierung von Murgängen, in:
Mattertal – ein Tal in Bewegung, Publikation zur Jahrestagung der
Schweizerischen Geomorphologischen Gesellschaft, St. Niklaus, Switzerland,
vol. 29, 85–112, 2013.
Grünewald, T., Schirmer, M., Mott, R., and Lehning, M.: Spatial and temporal
variability of snow depth and ablation rates in a small mountain catchment,
The Cryosphere, 4, 215–225, https://doi.org/10.5194/tc-4-215-2010, 2010.
Gubler, S., Fiddes, J., Keller, M., and Gruber, S.: Scale-dependent
measurement and analysis of ground surface temperature variability in alpine
terrain, The Cryosphere, 5, 431–443, https://doi.org/10.5194/tc-5-431-2011, 2011.
Haeberli, W.: Creep of mountain permafrost: internal structure and flow of
alpine rock glaciers, Mit. Ver. Was., 77, 5–142, 1985.
Haeberli, W., Hoelzle, M.,
Kääb, A., Keller, F., Vonder Mühll, D., and Wagner, S.: Ten
years after drilling through the permafrost of the active rock glacier
Murtèl, Eastern Swiss Alps: answered questions and new perspectives,
in: Proceedings of the 7th International Conference on Permafrost,
23–27 June, Nordicana, Yellowknife, Canada, 403–410, 1998.
Haeberli, W., Hallet, B., Arenson, L., Elconin, R., Humlum, O.,
Kääb, A., Kaufmann, V., Ladanyi, B., Matsuoka, N., Springman, S.,
and Vonder Mühll, D.: Permafrost creep and rock glacier dynamics,
Permafrost Periglac., 17, 189–214,
https://doi.org/10.1002/ppp.561, 2006.
Hausmann, H., Krainer, K., Brückl, E., and Mostler, W.: Creep of two
Alpine rock glaciers – observation and modelling (Ötztal-and Stubai
Alps, Austria), Grazer Schriften der Geographie und Raumforschung, 43,
145–150, 2007.
Hoelzle, M., Wagner, S., Kääb, A., and Vonder Mühll, D.: Surface
movement and internal deformation of ice-rock mixtures within rock glaciers
at Pontresina-Schafberg, Upper Engadin, Switzerland, in: Proceedings of the
Seventh International Conference on Permafrost, 23–27 June 1998,
Yellowknife, Northwest Territories, Canada, 465–471, 1998.
Hosmer, J., David, W., Lemeshow, S., and Sturdivant, R.: Applied Logistic
Regression, 3rd edn., John Wiley and Sons, New York, USA, 2013.
Humlum, O., Christiansen, H., and Juliussen, H.: Avalanche-derived rock
glaciers in Svalbard, Permafrost Periglac., 18, 75–88,
https://doi.org/10.1002/ppp.580, 2007.
Ikeda, A., Matsuoka, N., and Kääb, A.: Fast deformation of
perennially frozen debris in a warm rock-glacier in the Swiss Alps: an effect
of liquid water, J. Geophys. Res., 113, 1–12,
https://doi.org/10.1029/2007JF000859,
2008.
Johnson, J. and Nickling, W.: Englacial temperature and deformation of a rock
glacier in the Kluane Range, Yukon Territory, Canada, Can. J. Earth Sci., 16,
2275–2283, 1979.
Jomelli, V., Delval, C., Grancher, D., Escande, S., Brunstein, D., Hetu, B.,
Filion, L., and Pech, P.: Probabilistic analysis of recent snow avalanche
activity and weather in the French Alps, Cold Reg. Sci. Technol., 47,
180–192,
https://doi.org/10.1016/j.coldregions.2006.08.003,
2007.
Kääb, A.: Remote Sensing of Mountain Glaciers and Permafrost Creep,
vol. 48, Schriftenreihe Physische Geographie, Department of Geography,
University of Zurich, Zurich, Switzerland, 2005.
Kääb, A., Kaufmann, V., Ladstädter, R., and Eiken, T.: Rock
glacier dynamics: implications from high-resolution measurements of surface
velocity fields, in: Proceedings of the 8th International Conference on
Permafrost, 21–25 July 2003, Zurich, Switzerland, 501–506, 2003.
Kääb, A., and Weber, M.: Development of transverse ridges on rock
glaciers: field measurements and laboratory experiments, Permafrost
Periglac., 15, 379–391,
https://doi.org/10.1002/ppp.506, 2004.
Kääb, A., Huggel, C., Fischer, L., Guex, S., Paul, F.,
Roer, I., Salzmann, N., Schlaefli, S., Schmutz, K., Schneider, D., Strozzi,
T., and Weidmann, Y.: Remote sensing of glacier- and permafrost-related
hazards in high mountains: an overview, Nat. Hazards Earth Syst. Sci., 5,
527–554, https://doi.org/10.5194/nhess-5-527-2005, 2005.
Kääb, A., Frauenfelder, R., and Roer, I.: On the response of rock
glacier creep to surface temperature increase, Global Planet. Change, 56,
172–187,
https://doi.org/10.1016/j.gloplacha.2006.07.005,
2007.
Kamb, B.: Glacier surge mechanism based on linked cavity configuration of the
basal water conduit system, J. Geophys. Res.-Solid, 92, 9083–9100,
https://doi.org/10.1029/JB092iB09p09083,
1987.
Kaufmann, V., and Ladstädter, R.: Mapping of the 3D surface motion
field of Doesen rock glacier (Ankogel Group, Austria) and its spatio-temporal
change (1954–1998) by means of digital photogrammetry, in: Proceedings ot
the 9th International Symposium on High Mountain Remoste Sensing Cartography
(HMRSC-IX), Graz, 14–15 September 2006, Grazer Schriften der Geographie und
Raumforschung, 43, 134–144, 2007.
Keller, M., Hungerbuehler, G., Knecht, O., Sheikh, S., Beutel, J.,
Gubler, S., Fiddes, J., and Gruber, S.: iAssist: rapid deployment and
maintenance of tiny sensing systems, in: Proceedings of the 8th ACM
Conference on Embedded Networked Sensor Systems, SenSys '10, 3–5 November
2010, 401–402, ACM, New York, USA,
https://doi.org/10.1145/1869983.1870043,
2010.
Konrad, S., Humphrey, N., Steig, E., Clark, D. J. P., and Pfeffer, W.: Rock
glacier dynamics and paleoclimatic implications, Geology, 27, 1131–1134,
https://doi.org/10.1130/0091-7613(1999)027<1131:RGDAPI>2.3.CO;2,
1999.
Krainer, K. and He, X.: Flow velocities of active rock glaciers in the Austrian Alps, Geogr. Ann. A, 88, 267–280,
https://doi.org/10.1111/j.0435-3676.2006.00300.x, 2006.
Krainer, K. and Mostler, W.: Hydrology of active rock glaciers: examples from
the Austrian Alps, Arct. Antarct. Alp. Res., 142–149, 2002.
Krainer, K., Mostler, W., and Spötl, C.: Discharge from active rock
glaciers, Austrian Alps: a stable isotope approach, Aust. J. Earth Sci., 100,
102–112, 2007.
Krummenacher, B., Mihajlovic, D., Nussbaum, A., and Staub, B.: 20
Jahre Furggentälti, Permafrostuntersuchungen auf der Gemmi, Geographica
Bernensia G80, Geographisches Institut der Universität Bern, Bern,
Switzerland, 2008.
Labhart, T.: Geologie der Schweiz, 3rd edn., Ott Verlag, Thun, Switzerland, 1995.
Lambiel, C. and Delaloye, R.: Contribution of real-time kinematic GPS in the
study of creeping mountain permafrost: examples from the Western Swiss Alps,
Permafrost Periglac., 15, 229–241,
https://doi.org/10.1002/ppp.496, 2004.
Lambiel, C., Delaloye, R., and Perruchoud, E.: Yearly and seasonally
variations of surface velocities on creeping permafrost bodies. Cases
studies in the Valais Alps, in: 3rd Swiss Geoscience Meeting,
Zürich, 18–19 November 2005, 1–2, 2005.
Laube, P. and Purves, R. S.: How fast is a cow? Cross-scale analysis of
movement data, Transactions in GIS, 15, 401–418,
https://doi.org/10.1111/j.1467-9671.2011.01256.x,
2011.
Limpach, P. and Grimm, D.: Rock glacier monitoring with low-cost GPS
receivers, in: Abstract Volume 7th Swiss Geoscience Meeting, 20–21 November
2009, Neuchatel, Switzerland, 247–248, 2009.
Liu, L., Millar, C. I., Westfall, R. D., and Zebker, H. A.: Surface motion of
active rock glaciers in the Sierra Nevada, California, USA: inventory and a
case study using InSAR, The Cryosphere, 7, 1109–1119,
https://doi.org/10.5194/tc-7-1109-2013, 2013.
Lugon, R., Delaloye, R., and Perruchoud, E.: Aléas naturels en zone de
pergélisol et détection des Alpes valaisannes, Suisse, Rapport final,
Programme INTERREG IIIa France-Suisse Haut-Rhône, Institut
universitaire Kurt Bösch, Sion, Suisse; Géosciences, Institut de
Géographie, Université de Fribourg, Suisse, 2008.
Marks, D., Link, T., Winstral, A., and Garen, D.: Simulating snowmelt
processes during rain-on-snow over a semi-arid mountain basin, Ann. Glaciol.,
32, 195–202,
https://doi.org/10.3189/172756401781819751,
2001.
Mihajlovic, D., Kölbing, D., Kunz, I., Schwab, S., Kienholz, H.,
Budmiger, K., Imhof, M., and Krummenacher, B.: Developing new methods for
monitoring periglacial phenomena, in: Proceedings of the 8th International
Conference on Permafrost, 21–25 July 2003, Zurich, Switzerland, 765–770,
2003.
Nienow, P., Sharp, M., and Willis, I.: Seasonal changes in the morphology of
the subglacial drainage system, Haut Glacier d'Arolla, Switzerland, Earth
Surf. Proc. Land., 23, 825–843,
https://doi.org/10.1002/(SICI)1096-9837(199809)23:9<825::AID-ESP893>3.0.CO;2-2,
1998.
Ohlmacher, G. C. and Davis, J. C.: Using multiple logistic regression and GIS
technology to predict landslide hazard in northeast Kansas, USA, Eng. Geol.,
69, 331–343,
https://doi.org/10.1016/S0013-7952(03)00069-3,
2003.
Outcalt, S., Nelson, F., and Hinkel, K.: The zero-curtain effect: heat and
mass transfer across an isothermal region in freezing soil, Water Resour.
Res., 26, 1509–1516,
https://doi.org/10.1029/WR026i007p01509,
1990.
PERMOS: Permafrost in Switzerland 2008/2009 and 2009/2010, edited by:
Noetzli, J., Glaciological Report (Permafrost) No. 10/11 of the Cryospheric
Commission of the Swiss Academy of Sciences, Zurich, Switzerland, 2013.
PERMOS: Key messages on permafrost in Switzerland 2013/2014, unpublished
report by the PERMOS Scientific Committee, Zurich, Switzerland, 7 pp., 2015.
Perruchoud, E. and Delaloye, R.: Short-term changes in surface velocities on
the Becs-de-Bosson rock glacier (western Swiss Alps), Grazer Schriften der
Geographie und Raumforschung, 43, 131–136, 2007.
Potter, N.: Ice-cored rock glacier, Galena Creek, northern Absaroka Mountains, Wyoming, Geol. Soc. Am. Bull., 83, 3025–3058,
https://doi.org/10.1130/0016-7606(1972)83[3025:IRGGCN]2.0.CO;2, 1972.
Rist, A. and Phillips, M.: First results of investigations on hydrothermal
processes within the active layer above alpine permafrost in steep terrain,
Norsk Geogr. Tidsskr., 59, 177–183,
https://doi.org/10.1080/00291950510020574,
2005.
Robin, X., Turck, N., Hainard, A.,
Tiberti, N., Lisacek, F., Sanchez, J., and Müller, M.: pROC: an
open-source package for R and S+ to analyse and compare ROC curves, BMC
Bioinformatics, 12, 1–8, https://doi.org/10.1186/1471-2105-12-77, 2011.
Roer, I.: rock glacier Kinematics in a High Mountain Geosystem, Ph.D. thesis,
Mathematisch-Naturwissenschaftlichen Fakultät der Rheinischen
Friedrich-Wilhelms-Universität Bonn, Bonn, Germany, 2005.
Roer, I., Kääb, A., and Dikau, R.: rock glacier acceleration in the
Turtmann valley (Swiss Alps): probable controls, Norsk Geogr. Tidsskr., 59,
157–163,
https://doi.org/10.1080/00291950510020655,
2005.
Roer, I., Haeberli, W., Avian, M., Kaufmann, V., Delaloye, R., Lambiel, C.,
and Kääb, A.: Observations and considerations on destabilizing
active rock glaciers in the European Alps, in: Proceedings of the 9th
International Conference on Permafrost, 28 June–3 July 2008, Fairbanks,
Alaska, USA, vol. 2, 1505–1510, 2008.
Schmid, M.-O., Gubler, S., Fiddes, J., and Gruber, S.: Inferring snowpack
ripening and melt-out from distributed measurements of near-surface ground
temperatures, The Cryosphere, 6, 1127–1139, https://doi.org/10.5194/tc-6-1127-2012, 2012.
Schoeneich, P., Bodin, X., Echelard, T., Kaufmann, V., Kellerer-Pirklbauer, A.,
Krysiecki, J., Lieb, G.: Velocity changes of rock glaciers and induced
hazards, Engineering Geology for Society and Territory, 1, 223–227,
https://doi.org/, 2015.
Sloan, V. and Dyke, L.: Decadal and millennial velocities of rock glaciers,
Selwyn Mountains, Canada, Geogr. Ann. A, 80, 237–249, 1998.
Strozzi, T., Delaloye, R., Raetzo, H., and Wegmüller, U.: RADAR
interferometric observations of destabilized rock glaciers, in: Proceedings
of the “Fringe 2009 Workshop”, 30 November–4 December 2009, Frascati,
Italy, (ESA SP-677, March 2010), 1–5, 2009a.
Strozzi, T., Wegmuller, U., Werner, C., Wiesmann, A., Delaloye, R., and
Raetzo, H.: Survey of landslide activity and rock glaciers movement in the
Swiss Alps with TerraSAR-X, in: Geoscience and Remote Sensing Symposium, 2009
IEEE International, IGARSS, 12–17 July 2009, vol. 3, pp. III-53–III-56,
https://doi.org/10.1109/IGARSS.2009.5418175,
2009b.
Terzaghi, K.: Theoretical Soil Mechanics, Wiley, New York, USA, 510 pp.,
1943.
Venables, W. and Ripley, B.: Modern Applied Statistics with S, 4th edn., ISBN
0-387-95457-0, Springer, New York, USA, 2002.
Vitek, J. and Giardino, J.: Rock glaciers, in: Rock Glaciers: A Review of the
Knowledge Base, edited by: Vitek, J. and Giardino, J., Allen and Unwin
Boston, London, UK, 1–26, 1987.
Vonder Mühll, D.: Evidence of intrapermafrost groundwater flow beneath
an active rock glacier in the Swiss Alps, Permafrost Periglac., 3, 169–173,
https://doi.org/10.1002/ppp.3430030216,
1992.
Wagner, S.: Creep of alpine permafrost, investigated on the Murtèl rock
glacier (short communication), Permafrost Periglac., 3, 157–162,
https://doi.org/10.1002/ppp.3430030214,
1992.
Wagner, S.: Dreidimensionale Modellierung zweier Gletscher und
Deformationsanalyse von eisreichem Permafrost, Mit. Ver. Was.,
1–146, https://doi.org/10.3929/ethz-a-000954695, 1994.
Wahrhaftig, C. and Cox, A.: Rock glaciers in the Alaska Range, Geol. Soc. Am. Bull., 70, 383–436,
https://doi.org/10.1130/0016-7606(1959)70[383:RGITAR]2.0.CO;2, 1959.
Wirz, V., Limpach, P., Buchli, B., Beutel, J., and Gruber, S.: Temporal
characteristics of different cryosphere-related slope movements in high
mountains, in: Landslide Science and Practice, Springer, Berlin, Heidelberg,
Germany, 383–390, 2013.
Wirz, V., Beutel, J., Gruber, S., Gubler, S., and Purves, R. S.: Estimating
velocity from noisy GPS data for investigating the temporal variability of
slope movements, Nat. Hazards Earth Syst. Sci., 14, 2503–2520,
https://doi.org/10.5194/nhess-14-2503-2014, 2014.
Wirz, V., Marten Geertsema, M., Gruber, S., and Purves, R.: Temporal
variability of diverse mountain permafrost slope movements derived from
multi-year daily GPS data, Mattertal, Switzerland, Landslides, 1–17,
https://doi.org/10.1007/s10346-014-0544-3,
2015.
Xu, W., Yu, W., and Zhang, G.: Prediction method of debris flow by logistic
model with two types of rainfall: a case study in the Sichuan, China, Nat.
Hazards, 62, 733–744,
https://doi.org/10.1007/s11069-011-9988-0,
2012.
Yamamoto, Y.: Instabilities in Alpine permafrost: strength and stiffness in a warming regime, Ph. D. thesis, Institut for Geotechnical Engeneering, ETH Zurich, Zurich, Switzerland, 2013.
