Articles | Volume 19, issue 8
https://doi.org/10.5194/tc-19-2779-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-19-2779-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
04 Aug 2025
Research article |
| 04 Aug 2025
| 04 Aug 2025
Sediment transport capacity response to variations in water discharge in pressurized subglacial channels
Institut des dynamiques de la surface terrestre (IDYST), Université de Lausanne, Bâtiment Géopolis, 1015 Lausanne, Switzerland
Andrew J. Tedstone
Institut des dynamiques de la surface terrestre (IDYST), Université de Lausanne, Bâtiment Géopolis, 1015 Lausanne, Switzerland
Department of Geosciences, University of Fribourg, Ch. du Musée 1700, Fribourg, Switzerland
Mauro A. Werder
Laboratory of Hydraulics, Hydrology and Glaciology (VAW), ETH-Zürich, Hönggerbergring 26, 8093 Zurich, Switzerland
Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), bâtiment ALPOLE, Sion, Switzerland
Daniel Farinotti
Laboratory of Hydraulics, Hydrology and Glaciology (VAW), ETH-Zürich, Hönggerbergring 26, 8093 Zurich, Switzerland
Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), bâtiment ALPOLE, Sion, Switzerland
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Flavien Beaud, Saif Aati, Ian Delaney, Surendra Adhikari, and Jean-Philippe Avouac
The Cryosphere, 16, 3123–3148, https://doi.org/10.5194/tc-16-3123-2022, https://doi.org/10.5194/tc-16-3123-2022, 2022
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Understanding sliding at the bed of glaciers is essential to understand the future of sea-level rise and glacier-related hazards. Yet there is currently no universal law to describe this mechanism. We propose a universal glacier sliding law and a method to qualitatively constrain it. We use satellite remote sensing to create velocity maps over 6 years at Shisper Glacier, Pakistan, including its recent surge, and show that the observations corroborate the generalized theory.
Lea Geibel, Matthias Huss, Claudia Kurzböck, Elias Hodel, Andreas Bauder, and Daniel Farinotti
Earth Syst. Sci. Data, 14, 3293–3312, https://doi.org/10.5194/essd-14-3293-2022, https://doi.org/10.5194/essd-14-3293-2022, 2022
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Glacier monitoring in Switzerland started in the 19th century, providing exceptional data series documenting snow accumulation and ice melt. Raw point observations of surface mass balance have, however, never been systematically compiled so far, including complete metadata. Here, we present an extensive dataset with more than 60 000 point observations of surface mass balance covering 60 Swiss glaciers and almost 140 years, promoting a better understanding of the drivers of recent glacier change.
Tim Steffen, Matthias Huss, Rebekka Estermann, Elias Hodel, and Daniel Farinotti
Earth Surf. Dynam., 10, 723–741, https://doi.org/10.5194/esurf-10-723-2022, https://doi.org/10.5194/esurf-10-723-2022, 2022
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Climate change is rapidly altering high-alpine landscapes. The formation of new lakes in areas becoming ice free due to glacier retreat is one of the many consequences of this process. Here, we provide an estimate for the number, size, time of emergence, and sediment infill of future glacier lakes that will emerge in the Swiss Alps. We estimate that up to ~ 680 potential lakes could form over the course of the 21st century, with the potential to hold a total water volume of up to ~ 1.16 km3.
Loris Compagno, Matthias Huss, Evan Stewart Miles, Michael James McCarthy, Harry Zekollari, Amaury Dehecq, Francesca Pellicciotti, and Daniel Farinotti
The Cryosphere, 16, 1697–1718, https://doi.org/10.5194/tc-16-1697-2022, https://doi.org/10.5194/tc-16-1697-2022, 2022
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Christophe Ogier, Mauro A. Werder, Matthias Huss, Isabelle Kull, David Hodel, and Daniel Farinotti
The Cryosphere, 15, 5133–5150, https://doi.org/10.5194/tc-15-5133-2021, https://doi.org/10.5194/tc-15-5133-2021, 2021
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Johannes Marian Landmann, Hans Rudolf Künsch, Matthias Huss, Christophe Ogier, Markus Kalisch, and Daniel Farinotti
The Cryosphere, 15, 5017–5040, https://doi.org/10.5194/tc-15-5017-2021, https://doi.org/10.5194/tc-15-5017-2021, 2021
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In this study, we (1) acquire real-time information on point glacier mass balance with autonomous real-time cameras and (2) assimilate these observations into a mass balance model ensemble driven by meteorological input. For doing so, we use a customized particle filter that we designed for the specific purposes of our study. We find melt rates of up to 0.12 m water equivalent per day and show that our assimilation method has a higher performance than reference mass balance models.
Julien Seguinot and Ian Delaney
Earth Surf. Dynam., 9, 923–935, https://doi.org/10.5194/esurf-9-923-2021, https://doi.org/10.5194/esurf-9-923-2021, 2021
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Ancient Alpine glaciers have carved a fascinating landscape of piedmont lakes, glacial valleys, and mountain cirques. Using a previous supercomputer simulation of glacier flow, we show that glacier erosion has constantly evolved and moved to different parts of the Alps. Interestingly, larger glaciers do not always cause more rapid erosion. Instead, glacier erosion is modelled to slow down during glacier advance and peak during phases of retreat, such as the one the Earth is currently undergoing.
Loris Compagno, Sarah Eggs, Matthias Huss, Harry Zekollari, and Daniel Farinotti
The Cryosphere, 15, 2593–2599, https://doi.org/10.5194/tc-15-2593-2021, https://doi.org/10.5194/tc-15-2593-2021, 2021
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Ethan Welty, Michael Zemp, Francisco Navarro, Matthias Huss, Johannes J. Fürst, Isabelle Gärtner-Roer, Johannes Landmann, Horst Machguth, Kathrin Naegeli, Liss M. Andreassen, Daniel Farinotti, Huilin Li, and GlaThiDa Contributors
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Álvaro Ayala, David Farías-Barahona, Matthias Huss, Francesca Pellicciotti, James McPhee, and Daniel Farinotti
The Cryosphere, 14, 2005–2027, https://doi.org/10.5194/tc-14-2005-2020, https://doi.org/10.5194/tc-14-2005-2020, 2020
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We reconstruct past glacier changes (1955–2016) and estimate the committed ice loss in the Maipo River basin (semi-arid Andes of Chile), with a focus on glacier runoff. We found that glacier volume has decreased by one-fifth since 1955 and that glacier runoff shows a sequence of decreasing maxima starting in a severe drought in 1968. As meltwater originating from the Andes plays a key role in this dry region, our results can be useful for developing adaptation or mitigation strategies.
Andrew J. Tedstone, Joseph M. Cook, Christopher J. Williamson, Stefan Hofer, Jenine McCutcheon, Tristram Irvine-Fynn, Thomas Gribbin, and Martyn Tranter
The Cryosphere, 14, 521–538, https://doi.org/10.5194/tc-14-521-2020, https://doi.org/10.5194/tc-14-521-2020, 2020
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Albedo describes how much light that hits a surface is reflected without being absorbed. Low-albedo ice surfaces melt more quickly. There are large differences in the albedo of bare-ice areas of the Greenland Ice Sheet. They are caused both by dark glacier algae and by the condition of the underlying ice. Changes occur over centimetres to metres, so satellites do not always detect real albedo changes. Estimates of melt made using satellite measurements therefore tend to be underestimates.
Joseph M. Cook, Andrew J. Tedstone, Christopher Williamson, Jenine McCutcheon, Andrew J. Hodson, Archana Dayal, McKenzie Skiles, Stefan Hofer, Robert Bryant, Owen McAree, Andrew McGonigle, Jonathan Ryan, Alexandre M. Anesio, Tristram D. L. Irvine-Fynn, Alun Hubbard, Edward Hanna, Mark Flanner, Sathish Mayanna, Liane G. Benning, Dirk van As, Marian Yallop, James B. McQuaid, Thomas Gribbin, and Martyn Tranter
The Cryosphere, 14, 309–330, https://doi.org/10.5194/tc-14-309-2020, https://doi.org/10.5194/tc-14-309-2020, 2020
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Melting of the Greenland Ice Sheet (GrIS) is a major source of uncertainty for sea level rise projections. Ice-darkening due to the growth of algae has been recognized as a potential accelerator of melting. This paper measures and models the algae-driven ice melting and maps the algae over the ice sheet for the first time. We estimate that as much as 13 % total runoff from the south-western GrIS can be attributed to these algae, showing that they must be included in future mass balance models.
Alexandra T. Holland, Christopher J. Williamson, Fotis Sgouridis, Andrew J. Tedstone, Jenine McCutcheon, Joseph M. Cook, Ewa Poniecka, Marian L. Yallop, Martyn Tranter, Alexandre M. Anesio, and The Black & Bloom Group
Biogeosciences, 16, 3283–3296, https://doi.org/10.5194/bg-16-3283-2019, https://doi.org/10.5194/bg-16-3283-2019, 2019
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This paper provides a preliminary data set for dissolved nutrient abundance in the Dark Zone of the Greenland Ice Sheet. This 15-year marked darkening has since been attributed to glacier algae blooms, yet has not been accounted for in current melt rate models. We conclude that the dissolved organic phase dominates surface ice environments and that factors other than macronutrient limitation control the extent and magnitude of the glacier algae blooms.
Harry Zekollari, Matthias Huss, and Daniel Farinotti
The Cryosphere, 13, 1125–1146, https://doi.org/10.5194/tc-13-1125-2019, https://doi.org/10.5194/tc-13-1125-2019, 2019
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Glaciers in the European Alps play an important role in the hydrological cycle, act as a source for hydroelectricity and have a large touristic importance. We model the future evolution of all glaciers in the Alps with a novel model that combines both ice flow and melt processes. We find that under a limited warming scenario about one-third of the present-day ice volume will still be present by the end of the century, while under strong warming more than 90 % of the volume will be lost by 2100.
Martin Beniston, Daniel Farinotti, Markus Stoffel, Liss M. Andreassen, Erika Coppola, Nicolas Eckert, Adriano Fantini, Florie Giacona, Christian Hauck, Matthias Huss, Hendrik Huwald, Michael Lehning, Juan-Ignacio López-Moreno, Jan Magnusson, Christoph Marty, Enrique Morán-Tejéda, Samuel Morin, Mohamed Naaim, Antonello Provenzale, Antoine Rabatel, Delphine Six, Johann Stötter, Ulrich Strasser, Silvia Terzago, and Christian Vincent
The Cryosphere, 12, 759–794, https://doi.org/10.5194/tc-12-759-2018, https://doi.org/10.5194/tc-12-759-2018, 2018
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Nadine Feiger, Matthias Huss, Silvan Leinss, Leo Sold, and Daniel Farinotti
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This contribution presents two updated bedrock topographies and ice thickness distributions with a new uncertainty assessment for Gries- and Findelengletscher, Switzerland. The results are based on ground-penetrating radar (GPR) measurements and the
ice thickness estimation method (ITEM). The results show a total glacier volume of 0.28 ± 0.06 and 1.00 ± 0.34 km3 for Gries- and Findelengletscher, respectively, with corresponding average ice thicknesses of 56.8 ± 12.7 and 56.3 ± 19.6 m.
Joseph M. Cook, Andrew J. Hodson, Alex S. Gardner, Mark Flanner, Andrew J. Tedstone, Christopher Williamson, Tristram D. L. Irvine-Fynn, Johan Nilsson, Robert Bryant, and Martyn Tranter
The Cryosphere, 11, 2611–2632, https://doi.org/10.5194/tc-11-2611-2017, https://doi.org/10.5194/tc-11-2611-2017, 2017
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Biological growth darkens snow and ice, causing it to melt faster. This is often referred to as
bioalbedo. Quantifying bioalbedo has not been achieved because of difficulties in isolating the biological contribution from the optical properties of ice and snow, and from inorganic impurities in field studies. In this paper, we provide a physical model that enables bioalbedo to be quantified from first principles and we use it to guide future field studies.
Andrew J. Tedstone, Jonathan L. Bamber, Joseph M. Cook, Christopher J. Williamson, Xavier Fettweis, Andrew J. Hodson, and Martyn Tranter
The Cryosphere, 11, 2491–2506, https://doi.org/10.5194/tc-11-2491-2017, https://doi.org/10.5194/tc-11-2491-2017, 2017
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The bare ice albedo of the south-west Greenland ice sheet varies dramatically between years. The reasons are unclear but likely involve darkening by inorganic particulates, cryoconite and ice algae. We use satellite imagery to examine dark ice dynamics and climate model outputs to find likely climatological controls. Outcropping particulates can explain the spatial extent of dark ice, but the darkening itself is likely due to ice algae growth controlled by meltwater and light availability.
Martin Hoelzle, Erlan Azisov, Martina Barandun, Matthias Huss, Daniel Farinotti, Abror Gafurov, Wilfried Hagg, Ruslan Kenzhebaev, Marlene Kronenberg, Horst Machguth, Alexandr Merkushkin, Bolot Moldobekov, Maxim Petrov, Tomas Saks, Nadine Salzmann, Tilo Schöne, Yuri Tarasov, Ryskul Usubaliev, Sergiy Vorogushyn, Andrey Yakovlev, and Michael Zemp
Geosci. Instrum. Method. Data Syst., 6, 397–418, https://doi.org/10.5194/gi-6-397-2017, https://doi.org/10.5194/gi-6-397-2017, 2017
Daniel Farinotti, Douglas J. Brinkerhoff, Garry K. C. Clarke, Johannes J. Fürst, Holger Frey, Prateek Gantayat, Fabien Gillet-Chaulet, Claire Girard, Matthias Huss, Paul W. Leclercq, Andreas Linsbauer, Horst Machguth, Carlos Martin, Fabien Maussion, Mathieu Morlighem, Cyrille Mosbeux, Ankur Pandit, Andrea Portmann, Antoine Rabatel, RAAJ Ramsankaran, Thomas J. Reerink, Olivier Sanchez, Peter A. Stentoft, Sangita Singh Kumari, Ward J. J. van Pelt, Brian Anderson, Toby Benham, Daniel Binder, Julian A. Dowdeswell, Andrea Fischer, Kay Helfricht, Stanislav Kutuzov, Ivan Lavrentiev, Robert McNabb, G. Hilmar Gudmundsson, Huilin Li, and Liss M. Andreassen
The Cryosphere, 11, 949–970, https://doi.org/10.5194/tc-11-949-2017, https://doi.org/10.5194/tc-11-949-2017, 2017
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ITMIX – the Ice Thickness Models Intercomparison eXperiment – was the first coordinated performance assessment for models inferring glacier ice thickness from surface characteristics. Considering 17 different models and 21 different test cases, we show that although solutions of individual models can differ considerably, an ensemble average can yield uncertainties in the order of 10 ± 24 % the mean ice thickness. Ways forward for improving such estimates are sketched.
Christine F. Dow, Mauro A. Werder, Sophie Nowicki, and Ryan T. Walker
The Cryosphere, 10, 1381–1393, https://doi.org/10.5194/tc-10-1381-2016, https://doi.org/10.5194/tc-10-1381-2016, 2016
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We examine the development and drainage of subglacial lakes in the Antarctic using a finite element hydrology model. Model outputs show development of slow-moving pressure waves initiated from water funneled from a large catchment into the ice stream. Lake drainage occurs due to downstream channel formation and changing system hydraulic gradients. These model outputs have implications for understanding controls on ice stream dynamics.
A. Gafurov, S. Vorogushyn, D. Farinotti, D. Duethmann, A. Merkushkin, and B. Merz
The Cryosphere, 9, 451–463, https://doi.org/10.5194/tc-9-451-2015, https://doi.org/10.5194/tc-9-451-2015, 2015
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Spatially distributed snow-cover data are available only for the recent past from remote sensing. Sometimes we need snow-cover data over a longer period for climate impact analysis for the calibration/validation of hydrological models. In this study we present a methodology to reconstruct snow cover in the past using available long-term in situ data and recently available remote sensing snow-cover data. The results show about 85% accuracy although only a limited number of stations (7) were used.
M. Huss and D. Farinotti
The Cryosphere, 8, 1261–1273, https://doi.org/10.5194/tc-8-1261-2014, https://doi.org/10.5194/tc-8-1261-2014, 2014
Related subject area
Discipline: Glaciers | Subject: Geomorphology
Glacial erosion and history of Inglefield Land, northwestern Greenland
Tracing ice loss from the Late Holocene to the future in eastern Nuussuaq, central western Greenland
Glacial ring forms on Axel Heiberg Island, Nunavut, Canada
Will landscape responses reduce glacier sensitivity to climate change in High Mountain Asia?
In situ 10Be modeling and terrain analysis constrain subglacial quarrying and abrasion rates at Sermeq Kujalleq (Jakobshavn Isbræ), Greenland
Asynchronous glacial dynamics of Last Glacial Maximum mountain glaciers in the Ikh Bogd Massif, Gobi Altai mountain range, southwestern Mongolia: aspect control on glacier mass balance
Comment on “Ice content and interannual water storage changes of an active rock glacier in the dry Andes of Argentina” by Halla et al. (2021)
Formation of glacier tables caused by differential ice melting: field observation and modelling
High-resolution inventory to capture glacier disintegration in the Austrian Silvretta
Glacial and geomorphic effects of a supraglacial lake drainage and outburst event, Everest region, Nepal Himalaya
Caleb K. Walcott-George, Allie Balter-Kennedy, Jason P. Briner, Joerg M. Schaefer, and Nicolás E. Young
The Cryosphere, 19, 2067–2086, https://doi.org/10.5194/tc-19-2067-2025, https://doi.org/10.5194/tc-19-2067-2025, 2025
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Understanding the history and drivers of Greenland Ice Sheet change is important for forecasting future ice sheet retreat. We combined geologic mapping and cosmogenic nuclide measurements to investigate how the Greenland Ice Sheet formed the landscape of Inglefield Land, northwestern Greenland. We found that Inglefield Land was covered by warm- and cold-based ice during multiple glacial cycles and that much of Inglefield Land is an ancient landscape.
Josep Bonsoms, Marc Oliva, Juan Ignacio López-Moreno, and Guillaume Jouvet
The Cryosphere, 19, 1973–1993, https://doi.org/10.5194/tc-19-1973-2025, https://doi.org/10.5194/tc-19-1973-2025, 2025
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The extent to which Greenland's peripheral glaciers and ice caps current and future ice loss rates are unprecedented within the Holocene is poorly understood. This study connects the maximum ice extent of the Late Holocene with present and future glacier evolution in the Nuussuaq Peninsula (central western Greenland). By > 2050 glacier mass loss may have doubled in rate compared to the Late Holocene to the present, highlighting significant impacts of anthropogenic climate change.
Shannon M. Hibbard, Gordon R. Osinski, Etienne Godin, Chimira Andres, Antero Kukko, Shawn Chartrand, Anna Grau Galofre, A. Mark Jellinek, and Wendy Boucher
The Cryosphere, 19, 1695–1716, https://doi.org/10.5194/tc-19-1695-2025, https://doi.org/10.5194/tc-19-1695-2025, 2025
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This study investigates enigmatic ring forms found on Axel Heiberg Island (Umingmat Nunaat) in Nunavut, Canada. These ring forms comprised a series of ridges and troughs creating individual rings or brain-like patterns. We aim to identify how they form and assess the past climate conditions necessary for their formation. We use surface and subsurface observations and comparisons to other periglacial and glacial ring forms to infer a formation mechanism and propose a glacial origin.
Stephan Harrison, Adina Racoviteanu, Sarah Shannon, Darren Jones, Karen Anderson, Neil Glasser, Jasper Knight, Anna Ranger, Arindan Mandal, Brahma Dutt Vishwakarma, Jeffrey Kargel, Dan Shugar, Umesh Haritishaya, Dongfeng Li, Aristeidis Koutroulis, Klaus Wyser, and Sam Inglis
EGUsphere, https://doi.org/10.5194/egusphere-2024-4033, https://doi.org/10.5194/egusphere-2024-4033, 2025
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Climate change is leading to a global recession of mountain glaciers, and numerical modelling suggests that this will result in the eventual disappearance of many glaciers, impacting water supplies. However, an alternative scenario suggests that increased rock fall and debris flows to valley bottoms will cover glaciers with thick rock debris, slowing melting and transforming glaciers into rock-ice mixtures called rock glaciers. This paper explores these scenarios.
Brandon L. Graham, Jason P. Briner, Nicolás E. Young, Allie Balter-Kennedy, Michele Koppes, Joerg M. Schaefer, Kristin Poinar, and Elizabeth K. Thomas
The Cryosphere, 17, 4535–4547, https://doi.org/10.5194/tc-17-4535-2023, https://doi.org/10.5194/tc-17-4535-2023, 2023
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Glacial erosion is a fundamental process operating on Earth's surface. Two processes of glacial erosion, abrasion and plucking, are poorly understood. We reconstructed rates of abrasion and quarrying in Greenland. We derive a total glacial erosion rate of 0.26 ± 0.16 mm per year. We also learned that erosion via these two processes is about equal. Because the site is similar to many other areas covered by continental ice sheets, these results may be applied to many places on Earth.
Purevmaa Khandsuren, Yeong Bae Seong, Hyun Hee Rhee, Cho-Hee Lee, Mehmet Akif Sarikaya, Jeong-Sik Oh, Khadbaatar Sandag, and Byung Yong Yu
The Cryosphere, 17, 2409–2435, https://doi.org/10.5194/tc-17-2409-2023, https://doi.org/10.5194/tc-17-2409-2023, 2023
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Moraine is an awe-inspiring landscape in alpine areas and stores information on past climate. We measured the timing of moraine formation on the Ih Bogd Massif, southern Mongolia. Here, glaciers move synchronously as a response to changing climate; however, our glacier on the northern slope reached its maximum extent 3 millennia after the southern one. We ran a 2D ice surface model and found that the diachronous behavior of glaciers was real. Aspect also controls the mass of alpine glaciers.
W. Brian Whalley
The Cryosphere, 17, 699–700, https://doi.org/10.5194/tc-17-699-2023, https://doi.org/10.5194/tc-17-699-2023, 2023
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Examination of recent Google Earth images of glaciers and rock glaciers in the
Dry Andeshas sufficient detail to show surface meltwater pools. These pools have exposures of glacier ice that core the rock glaciers with volume loss. Such pools are seen on debris-covered glaciers and rock glaciers worldwide and cast doubt on the
permafrostorigin of rock glaciers.
Marceau Hénot, Vincent J. Langlois, Jérémy Vessaire, Nicolas Plihon, and Nicolas Taberlet
The Cryosphere, 16, 2617–2628, https://doi.org/10.5194/tc-16-2617-2022, https://doi.org/10.5194/tc-16-2617-2022, 2022
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Glacier tables are structures frequently encountered on temperate glaciers. They consist of a rock supported by a narrow ice foot which forms through differential melting of the ice. In this article, we investigate their formation by following their dynamics on the Mer de Glace (the Alps, France). We explain this phenomenon by a combination of the effect of turbulent flux, short-wave flux and direct solar radiation that sets a critical size above which a rock will form a glacier table.
Andrea Fischer, Gabriele Schwaizer, Bernd Seiser, Kay Helfricht, and Martin Stocker-Waldhuber
The Cryosphere, 15, 4637–4654, https://doi.org/10.5194/tc-15-4637-2021, https://doi.org/10.5194/tc-15-4637-2021, 2021
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Eastern Alpine glaciers have been receding since the Little Ice Age maximum, but until now the majority of glacier margins could be delineated unambiguously. Today the outlines of totally debris-covered glacier ice are fuzzy and raise the discussion if these features are still glaciers. We investigated the fate of glacier remnants with high-resolution elevation models, analyzing also thickness changes in buried ice. In the past 13 years, the 46 glaciers of Silvretta lost one-third of their area.
Evan S. Miles, C. Scott Watson, Fanny Brun, Etienne Berthier, Michel Esteves, Duncan J. Quincey, Katie E. Miles, Bryn Hubbard, and Patrick Wagnon
The Cryosphere, 12, 3891–3905, https://doi.org/10.5194/tc-12-3891-2018, https://doi.org/10.5194/tc-12-3891-2018, 2018
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We use high-resolution satellite imagery and field visits to assess the growth and drainage of a lake on Changri Shar Glacier in the Everest region, and its impact. The lake filled and drained within 3 months, which is a shorter interval than would be detected by standard monitoring protocols, but forced re-routing of major trails in several locations. The water appears to have flowed beneath Changri Shar and Khumbu glaciers in an efficient manner, suggesting pre-existing developed flow paths.
Cited articles
Aitken, A. R. A., Delaney, I., Pirot, G., and Werder, M. A.: Modelling subglacial fluvial sediment transport with a graph-based model, Graphical Subglacial Sediment Transport (GraphSSeT), The Cryosphere, 18, 4111–4136, https://doi.org/10.5194/tc-18-4111-2024, 2024. a
Andresen, C. S., Karlsson, N. B., Straneo, F., Schmidt, S., Andersen, T. J., Eidam, E. F., Bjørk, A. A., Dartiguemalle, N., Dyke, L. M., Vermassen, F., and Gundel, I. E.: Sediment discharge from Greenland's marine-terminating glaciers is linked with surface melt, Nat. Commun., 15, 1332, https://doi.org/10.1038/s41467-024-45694-1, 2024. a
Andrews, L. C., Catania, G. A., Hoffman, M. J., Gulley, J. D., Lüthi, M. P., Ryser, C., Hawley, R. L., and Neumann, T. A.: Direct observations of evolving subglacial drainage beneath the Greenland Ice Sheet, Nature, 514, 80, https://doi.org/10.1038/nature13796, 2014. a
Beaud, F., Flowers, G., and Venditti, J. G.: Modeling sediment transport in ice-walled subglacial channels and its implications for esker formation and pro-glacial sediment yields, J. Geophys. Res.-Earth, 123, 3206–3227, https://doi.org/10.1029/2018JF004779, 2018. a, b, c
Bendixen, M., Iversen, L. L., Bjørk, A. A., Elberling, B., Westergaard-Nielsen, A., Overeem, I., Barnhart, K. R., Khan, S. A., Abermann, J., Langley, K., and Kroon, A.: Delta progradation in Greenland driven by increasing glacial mass loss, Nature, 550, 101, https://doi.org/10.1038/nature23873, 2017. a
Brunner, M. I., Farinotti, D., Zekollari, H., Huss, M., and Zappa, M.: Future shifts in extreme flow regimes in Alpine regions, Hydrol. Earth Syst. Sci., 23, 4471–4489, https://doi.org/10.5194/hess-23-4471-2019, 2019. a
Chandler, D. M., Wadham, J. L., Lis, G. P., Cowton, T., Sole, A., Bartholomew, I., Telling, J., Nienow, P., Bagshaw, E. B., Mair, D., Vinen, S., and Hubbard, A.: Evolution of the subglacial drainage system beneath the Greenland Ice Sheet revealed by tracers, Nat. Geosci., 6, 195–198, https://doi.org/10.1038/ngeo1737, 2013. a, b
Chu, V. W., Smith, L. C., Rennermalm, A. K., Forster, R. R., and Box, J. E.: Hydrologic controls on coastal suspended sediment plumes around the Greenland Ice Sheet, The Cryosphere, 6, 1–19, https://doi.org/10.5194/tc-6-1-2012, 2012. a, b
Clarke, G. K. C.: Lumped-element model for subglacial transport of solute and suspended sediment, Ann. Glaciol., 22, 152–159, https://doi.org/10.3189/1996AoG22-1-152-159, 1996. a
Collins, D. N.: Sediment concentration in melt waters as an indicator of erosion processes beneath an Alpine glacier, J. Glaciol., 23, 247–257, 1979. a
Costa, A., Molnar, P., Stutenbecker, L., Bakker, M., Silva, T. A., Schlunegger, F., Lane, S. N., Loizeau, J.-L., and Girardclos, S.: Temperature signal in suspended sediment export from an Alpine catchment, Hydrol. Earth Syst. Sci., 22, 509–528, https://doi.org/10.5194/hess-22-509-2018, 2018. a
Cowan, E., Powell, R., and Smith, N.: Rainstorm-induced event sedimentation at the tidewater front of a temperate glacier, Geology, 16, 409–412, https://doi.org/10.1130/0091-7613(1988)016, 1988. a
Cremona, A., Huss, M., Landmann, J. M., Borner, J., and Farinotti, D.: European heat waves 2022: contribution to extreme glacier melt in Switzerland inferred from automated ablation readings, The Cryosphere, 17, 1895–1912, https://doi.org/10.5194/tc-17-1895-2023, 2023. a
Creyts, T. T., Clarke, G. K. C., and Church, M.: Evolution of subglacial overdeepenings in response to sediment redistribution and glaciohydraulic supercooling, J. Geophys. Res.-Earth, 118, 423–446, https://doi.org/10.1002/jgrf.20033, 2013. a, b, c
Dean, D. and Schmidt, J.: The geomorphic effectiveness of a large flood on the Rio Grande in the Big Bend region: insights on geomorphic controls and post-flood geomorphic response, Geomorphology, 201, 183–198, https://doi.org/10.1016/j.geomorph.2013.06.020, 2013. a
Delaney, I.: Code for: Sediment transport capacity response to variations in water discharge in pressurized subglacial channels, Zenodo [code], https://doi.org/10.5281/zenodo.15227775, 2025. a
Delaney, I., Bauder, A., Werder, M. A., and Farinotti, D.: Regional and annual variability in subglacial sediment transport by water for two glaciers in the Swiss Alps, Front. Earth Sci., 6, 175, https://doi.org/10.3389/feart.2018.00175, 2018. a, b, c
Delaney, I., Werder, M. A., and Farinotti, D.: A numerical model for fluvial transport of subglacial sediment, J. Geophys. Res.-Earth, 124, 2197–2223, https://doi.org/10.1029/2019JF005004, 2019. a, b, c, d
Delaney, I., Anderson, L., and Herman, F.: Modeling the spatially distributed nature of subglacial sediment transport and erosion, Earth Surf. Dynam., 11, 663–680, https://doi.org/10.5194/esurf-11-663-2023, 2023. a
Delaney, I., Werder, M., Felix, D., Albayrak, I., Boes, R., and Farinotti, D.: Controls on sediment transport from a glacierized catchment in the Swiss Alps established through inverse modeling of geomorphic processes, Water Resour. Res., 60, e2023WR035589, https://doi.org/10.1029/2023WR035589, 2024. a, b
Felix, D., Abgottspon, A., Staubli, T., von Burg, M., Kastinger, M.and Albayrak, I., and Boes, R.: Untersuchung der Schwebstoffbelastung, der hydro-abrasiven Erosion und der Wirkungsgradänderungen an beschichteten Peltonturbinen in der Hochdruckwasserkraftanlage Fieschertal (Field investigation on suspended sediment, hydro-abrasive erosion and efficiency changes of coated Pelton turbines in the high-head hydropower plant Fieschertal), Tech. rep., Schlussbericht an das Bundesamt für Energie (BFE), VAW der ETH Zürich und Hochschule Luzern, https://doi.org/10.3929/ethz-b-000575182, 2022 (in German). a
Ganti, V., von Hagke, C., Scherler, D., Lamb, M., Fischer, W., and Avouac, J.-P.: Time scale bias in erosion rates of glaciated landscapes, Science Advances, 2, e1600204, https://doi.org/10.1126/sciadv.1600204, 2016. a
Gimbert, F., Tsai, V. C., Amundson, J. M., Bartholomaus, T. C., and Walter, J. I.: Subseasonal changes observed in subglacial channel pressure, size, and sediment transport, Geophys. Res. Lett., 43, 3786–3794, https://doi.org/10.1002/2016GL068337, 2016. a, b
Glen, J.: The creep of polycrystalline ice, P. Roy. Soc. A-Math. Phy., 228, 519–538, 1955. a
Gomez, B.: Temporal variations in bedload transport rates: the effect of progressive bed armouring, Earth Surf. Proc. Land., 8, 41–54, https://doi.org/10.1002/esp.3290080105, 1983. a
Grab, M., Mattea, E., Bauder, A., Huss, M., Rabenstein, L., Hodel, E., Linsbauer, A., Langhammer, L., Schmid, L., Church, G., Hellmann, S., Délèze, K., Schaer, P., Lathion, P., Farinotti, D., and Maurer, H.: Ice thickness distribution of all Swiss glaciers based on extended ground-penetrating radar data and glaciological modeling, J. Glaciol., 67, 1074–1092, https://doi.org/10.1017/jog.2021.55, 2021. a
Hallet, B.: A theoretical model of glacial abrasion, J. Glaciol., 23, 39–50, 1979. a
Herman, F., Beyssac, O., Brughelli, M., Lane, S., Leprince, S., Adatte, T., Lin, J. Y. Y., Avouac, J. P., and Cox, S. C.: Erosion by an Alpine glacier, Science, 350, 193–195, https://doi.org/10.1126/science.aab2386, 2015. a, b
Hewitt, I. and Creyts, T.: A model for the formation of eskers, Geophys. Res. Lett., 46, 6673–6680, https://doi.org/10.1029/2019GL082304, 2019. a, b, c
Hodson, A., Gurnell, A., Tranter, M., Bogen, J., Hagen, J., and Clark, M.: Suspended sediment yield and transfer processes in a small High-Arctic glacier basin, Svalbard, Hydrol. Process., 12, 73–86, https://doi.org/10.1002/(SICI)1099-1085(199801)12:1<73::AID-HYP564>3.0.CO;2-S, 1998. a
Hooke, R. L., Laumann, T., and Kohler, J.: Subglacial water pressures and the shape of subglacial conduits, J. Glaciol., 36, 67–71, https://doi.org/10.3189/S0022143000005566, 1990. a
How, P., Benn, D. I., Hulton, N. R. J., Hubbard, B., Luckman, A., Sevestre, H., van Pelt, W. J. J., Lindbäck, K., Kohler, J., and Boot, W.: Rapidly changing subglacial hydrological pathways at a tidewater glacier revealed through simultaneous observations of water pressure, supraglacial lakes, meltwater plumes and surface velocities, The Cryosphere, 11, 2691–2710, https://doi.org/10.5194/tc-11-2691-2017, 2017. a
Iken, A. and Bindschadler, R. A.: Combined measurements of subglacial water pressure and surface velocity of Findelengletscher, Switzerland: conclusions about drainage system and sliding mechanism, J. Glaciol., 32, 101–119, 1986. a
Iverson, N. R.: A theory of glacial quarrying for landscape evolution models, Geology, 40, 679–682, https://doi.org/10.1130/G33079.1, 2012. a
Jenkin, M., Hofmann, M., Hubbard, B., Mancini, D., Miesen, F., Herman, F., and Lane, S.: Tracking coarse sediment in an Alpine subglacial channel using radio-tagged particles, J. Glaciol., 69, 1992–2006, https://doi.org/10.1017/jog.2023.77, 2023. a
Koppes, M., Hallet, B., Rignot, E., Mouginot, J., Wellner, J. S., and Boldt, K.: Observed latitudinal variations in erosion as a function of glacier dynamics, Nature, 526, 100–103, 2015. a
Lane, S. and Nienow, P.: Decadal-scale climate forcing of Alpine glacial hydrological systems, Water Resour. Res., 55, 2478–2492, https://doi.org/10.1029/2018WR024206, 2019. a, b
Lenzi, M., L., M., and Comiti, F.: Effective discharge for sediment transport in a mountain river: computational approaches and geomorphic effectiveness, J. Hydrol., 326, 257–276, https://doi.org/10.1016/j.jhydrol.2005.10.031, 2006. a
Li, D., Lu, X., Overeem, I., Walling, D. E., Syvitski, J., Kettner, A. J., Bookhagen, B., Zhou, Y., and Zhang, T.: Exceptional increases in fluvial sediment fluxes in a warmer and wetter High Mountain Asia, Science, 374, 599–603, https://doi.org/10.1126/science.abi9649, 2021. a
Li, D., Lu, X., Walling, D. E., Zhang, T., Steiner, J. F., Wasson, R. J., Harrison, S., Nepal, S., Nie, Y., Immerzeel, W. W., Shugar, D. H., Koppes, M., Lane, S. N., Zeng, Z., Sun, X., Yegorov, A., and Bolch, T.: High Mountain Asia hydropower systems threatened by climate-driven landscape instability, Nat. Geosci., 15, 520–530, 2022. a
Lu, X., Zhang, T., Hsia, B.-L., Li, D., Fair, H., Niu, H., Chua, S., Li, L., and Li, S.: Proglacial river sediment fluxes in the southeastern Tibetan Plateau: Mingyong Glacier in the Upper Mekong River, Hydrol. Process., 36, e14751, https://doi.org/10.1002/hyp.14751, 2022. a, b
Magnusson, J., Jonas, T., and Kirchner, J.: Temperature dynamics of a proglacial stream: identifying dominant energy balance components and inferring spatially integrated hydraulic geometry, Water Resour. Res., 48, 6, https://doi.org/10.1029/2011WR011378, 2012. a
Mancini, D., Dietze, M., Müller, T., Jenkin, M., Miesen, F., Roncoroni, M., Nicholas, A., and Lane, S.: Filtering of the signal of sediment export from a glacier by its proglacial forefield, Geophys. Res. Lett., 50, e2023GL106082, https://doi.org/10.1029/2023GL106082, 2023. a, b, c
McGrath, D., Steffen, K., Overeem, I., Mernild, S., Hasholt, B., and Van Den Broeke, M.: Sediment plumes as a proxy for local ice-sheet runoff in Kangerlussuaq Fjord, West Greenland, J. Glaciol., 56, 813–821, https://doi.org/10.3189/002214310794457227, 2010. a
Morlighem, M., Williams, C., Rignot, E., An, L., Arndt, J., Bamber, J., Catania, G., Chauché, N., Dowdeswell, J., Dorschel, B., Fenty, I., Hogan, K., Howat, I., Hubbard, A., Jakobsson, M., Jordan, T. M., Kjeldsen, K., Millan, R., Mayer, L., Mouginot, J., Noël, B. Y., O'Cofaigh, C., Palmer, S., Rysgaard, S., Seroussi, H., Siegert, M., Slabon, P., Straneo, F., van den Broeke, M., Weinrebe, W., Wood, M., and Zinglersen, K.: BedMachine v3: complete bed topography and ocean bathymetry mapping of Greenland from multibeam echo sounding combined with mass conservation, Geophys. Res. Lett., 44, 11051–11061, https://doi.org/10.1002/2017GL074954, 2017. a
Nanni, U., Gimbert, F., Vincent, C., Gräff, D., Walter, F., Piard, L., and Moreau, L.: Quantification of seasonal and diurnal dynamics of subglacial channels using seismic observations on an Alpine glacier, The Cryosphere, 14, 1475–1496, https://doi.org/10.5194/tc-14-1475-2020, 2020. a
Núñez Ferreira, F., Zoet, L., Rawling III, J., Haseloff, M., Rehwald, M., and Ullman, D.: Subglacial hydrology insights from eskers developed atop soft beds of the Laurentide ice sheet, Earth Surf. Proc. Land., 50, e6037, https://doi.org/10.1002/esp.6037, 2025. a, b, c
Overeem, I., Hudson, B., Welty, E., Mikkelsen, A., Bamber, J., Petersen, D., Lewinter, A., and Hasholt, B.: River inundation suggests ice-sheet runoff retention, J. Glaciol., 61, 776–788, https://doi.org/10.3189/2015JoG15J012, 2015. a
Overeem, I., Hudson, B. D., Syvitski, J. P. M., Mikkelsen, A. B., Hasholt, B., van den Broeke, M. R., Noël, B. P. Y., and Morlighem, M.: Substantial export of suspended sediment to the global oceans from glacial erosion in Greenland, Nat. Geosci., 10, 859–863, https://doi.org/10.1038/NGEO3046, 2017. a, b
Pearce, J., Pazzaglia, F., Evenson, E., Lawson, D., Alley, R., Germanoski, D., and Denner, J.: Bedload component of glacially discharged sediment: insights from the Matanuska Glacier, Alaska, Geology, 31, 7–10, https://doi.org/10.1130/0091-7613(2003)031<0007:BCOGDS>2.0.CO;2, 2003. a
Perolo, P., Bakker, M., Gabbud, C., Moradi, G., Rennie, C., and Lane, S.: Subglacial sediment production and snout marginal ice uplift during the late ablation season of a temperate valley glacier, Earth Surf. Proc. Land., 0, 1–68, https://doi.org/10.1002/esp.4562, 2018. a, b, c
Phillips, C. and Jerolmack, D.: Self-organization of river channels as a critical filter on climate signals, Science, 352, 694–697, https://doi.org/10.1126/science.aad3348, 2016. a
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. a
Riihimaki, C. A., MacGregor, K. R., Anderson, R. S., Anderson, S. P., and Loso, M. G.: Sediment evacuation and glacial erosion rates at a small alpine glacier, J. Geophys. Res.-Earth, 110, F03003, https://doi.org/10.1029/2004JF000189, 2005. a
Schmidt, K.-H. and Morche, D.: Sediment output and effective discharge in two small high mountain catchments in the Bavarian Alps, Germany, Geomorphology, 80, 131–145, https://doi.org/10.1016/j.geomorph.2005.09.013, 2006. a
Shreve, R. L.: Movement of water in glaciers, J. Glaciol., 11, 205–214, 1972. a
Slater, L. and Singer, M.: Imprint of climate and climate change in alluvial riverbeds: continental United States, 1950–2011, Geology, 41, 595–598, https://doi.org/10.1130/G34070.1, 2013. a
Stevens, D., Ely, J., Livingstone, S., Clark, C., Butcher, F., and Hewitt, I.: Effects of basal topography and ice-sheet surface slope in a subglacial glaciofluvial deposition model, J. Glaciol., 69, 1–13, https://doi.org/10.1017/jog.2022.71, 2022. a
Stott, T. and Mount, N.: Alpine proglacial suspended sediment dynamics in warm and cool ablation seasons: implications for global warming, J. Hydrol., 332, 259–270, https://doi.org/10.1016/j.jhydrol.2006.07.001, 2007. a
Swift, D., Nienow, P. W., and Hoey, T. B.: Basal sediment evacuation by subglacial meltwater: suspended sediment transport from Haut Glacier d'Arolla, Switzerland, Earth Surf. Proc. Land., 30, 867–883, https://doi.org/10.1002/esp.1197, 2005. a, b
Swift, D., Tallentire, G., Farinotti, D., Cook, S., Higson, W., and Bryant, R.: The hydrology of glacier-bed overdeepenings: sediment transport mechanics, drainage system morphology, and geomorphological implications, Earth Surf. Proc. Land., 46, 2264–2278, https://doi.org/10.1002/esp.5173, 2021. a
Tedstone, A. and Arnold, N.: Automated remote sensing of sediment plumes for identification of runoff from the Greenland ice sheet, J. Glaciol., 58, 699–712, https://doi.org/10.3189/2012JoG11J204, 2012. a, b
Tedstone, A., Nienow, P., Sole, A., Mair, D., Cowton, T., Bartholomew, I., and King, M.: Greenland ice sheet motion insensitive to exceptional meltwater forcing, P. Natl. Acad. Sci. USA, 110, 19719–19724, https://doi.org/10.1073/pnas.1315843110, 2013. a, b
Tucker, G. E. and Slingerland, R.: Drainage basin responses to climate change, Water Resour. Res., 33, 2031–2047, https://doi.org/10.1029/97WR00409, 1997. a, b, c, d
Ugelvig, S. V., Egholm, D. L., Anderson, R. S., and Iverson, N. R.: Glacial erosion driven by variations in meltwater drainage, J. Geophys. Res.-Earth, 123, 2863–2877, https://doi.org/10.1029/2018JF004680, 2018. a
van As, D., Bech Mikkelsen, A., Holtegaard Nielsen, M., Box, J. E., Claesson Liljedahl, L., Lindbäck, K., Pitcher, L., and Hasholt, B.: Hypsometric amplification and routing moderation of Greenland ice sheet meltwater release, The Cryosphere, 11, 1371–1386, https://doi.org/10.5194/tc-11-1371-2017, 2017. a
Vergara, I., Garreaud, R., and Ayala, Á.: Sharp increase of extreme turbidity events due to deglaciation in the subtropical Andes, J. Geophys. Res.-Earth, 127, e2021JF006584, https://doi.org/10.1029/2021JF006584, 2022. a, b, c
Walder, J. S. and Fowler, A.: Channelized subglacial drainage over a deformable bed, J. Glaciol., 40, 3–15, https://doi.org/10.3189/S0022143000003750, 1994. a, b, c
Werder, M. A., Schuler, T. V., and Funk, M.: Short term variations of tracer transit speed on alpine glaciers, The Cryosphere, 4, 381–396, https://doi.org/10.5194/tc-4-381-2010, 2010. a, b, c
Werder, M. A., Hewitt, I. J., Schoof, C. G., and Flowers, G. E.: Modeling channelized and distributed subglacial drainage in two dimensions, J. Geophys. Res.-Earth, 118, 2140–2158, https://doi.org/10.1002/jgrf.20146, 2013. a
Wickert, A. D. and Schildgen, T. F.: Long-profile evolution of transport-limited gravel-bed rivers, Earth Surf. Dynam., 7, 17–43, https://doi.org/10.5194/esurf-7-17-2019, 2019. a
Williams, G. P.: Sediment concentration versus water discharge during single hydrologic events in rivers, J. Hydrol., 111, 89–106, https://doi.org/10.1016/0022-1694(89)90254-0, 1989. a
Wolman, M. G. and Miller, J. P.: Magnitude and frequency of forces in geomorphic processes, J. Geol., 68, 54–74, 1960. a
Zhang, T., Li, D., East, A., Walling, D., Lane, S., Overeem, I., Beylich, A., Koppes, M., and Lu, X.: Warming-driven erosion and sediment transport in cold regions, Nature Reviews Earth and Environment, 3, 832–851, https://doi.org/10.1038/s43017-022-00362-0, 2022. a, b
Short summary
Sediment transport capacity depends on water velocity and channel width. In rivers, water discharge changes affect flow depth, width, and velocity. Yet, under glaciers, discharge variations alter velocity more than channel shape. Due to these differences, this study shows that sediment transport capacity under glaciers varies widely and peaks before water flow, creating a complex relationship. Understanding these dynamics helps interpret sediment discharge from glaciers in different climates.
Sediment transport capacity depends on water velocity and channel width. In rivers, water...
