Articles | Volume 15, issue 11
https://doi.org/10.5194/tc-15-5133-2021
© Author(s) 2021. 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-15-5133-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
18 Nov 2021
Research article |
| 18 Nov 2021
Drainage of an ice-dammed lake through a supraglacial stream: hydraulics and thermodynamics
Laboratory of Hydraulics, Hydrology and Glaciology (VAW), ETH Zurich, Zurich, Switzerland
Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland
Mauro A. Werder
Laboratory of Hydraulics, Hydrology and Glaciology (VAW), ETH Zurich, Zurich, Switzerland
Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland
Matthias Huss
Laboratory of Hydraulics, Hydrology and Glaciology (VAW), ETH Zurich, Zurich, Switzerland
Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland
Department of Geosciences, University of Fribourg, Fribourg, Switzerland
Isabelle Kull
Geotest AG, Zollikofen, Switzerland
David Hodel
Theiler Ingenieure, Thun, Switzerland
Daniel Farinotti
Laboratory of Hydraulics, Hydrology and Glaciology (VAW), ETH Zurich, Zurich, Switzerland
Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland
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Rebecca Gugerli, Nadine Salzmann, Matthias Huss, and Darin Desilets
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Manuela I. Brunner, Daniel Farinotti, Harry Zekollari, Matthias Huss, and Massimiliano Zappa
Hydrol. Earth Syst. Sci., 23, 4471–4489, https://doi.org/10.5194/hess-23-4471-2019, https://doi.org/10.5194/hess-23-4471-2019, 2019
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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.
Kathrin Naegeli, Matthias Huss, and Martin Hoelzle
The Cryosphere, 13, 397–412, https://doi.org/10.5194/tc-13-397-2019, https://doi.org/10.5194/tc-13-397-2019, 2019
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The paper investigates the temporal changes of bare-ice glacier surface albedo in the Swiss Alps between 1999 and 2016 from a regional to local scale using satellite data. Significant negative trends were found in the lowermost elevations and margins of the ablation zones. Although significant changes of glacier ice albedo are only present over a limited area, we emphasize that albedo feedback will considerably enhance the rate of glacier mass loss in the Swiss Alps in the near future.
Sarah Shannon, Robin Smith, Andy Wiltshire, Tony Payne, Matthias Huss, Richard Betts, John Caesar, Aris Koutroulis, Darren Jones, and Stephan Harrison
The Cryosphere, 13, 325–350, https://doi.org/10.5194/tc-13-325-2019, https://doi.org/10.5194/tc-13-325-2019, 2019
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We present global glacier volume projections for the end of this century, under a range of high-end climate change scenarios, defined as exceeding 2 °C global average warming. The ice loss contribution to sea level rise for all glaciers excluding those on the peripheral of the Antarctic ice sheet is 215.2 ± 21.3 mm. Such large ice losses will have consequences for sea level rise and for water supply in glacier-fed river systems.
Julien Seguinot, Susan Ivy-Ochs, Guillaume Jouvet, Matthias Huss, Martin Funk, and Frank Preusser
The Cryosphere, 12, 3265–3285, https://doi.org/10.5194/tc-12-3265-2018, https://doi.org/10.5194/tc-12-3265-2018, 2018
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Martina Barandun, Matthias Huss, Ryskul Usubaliev, Erlan Azisov, Etienne Berthier, Andreas Kääb, Tobias Bolch, and Martin Hoelzle
The Cryosphere, 12, 1899–1919, https://doi.org/10.5194/tc-12-1899-2018, https://doi.org/10.5194/tc-12-1899-2018, 2018
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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
Geogr. Helv., 73, 1–9, https://doi.org/10.5194/gh-73-1-2018, https://doi.org/10.5194/gh-73-1-2018, 2018
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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.
Vanessa Round, Silvan Leinss, Matthias Huss, Christoph Haemmig, and Irena Hajnsek
The Cryosphere, 11, 723–739, https://doi.org/10.5194/tc-11-723-2017, https://doi.org/10.5194/tc-11-723-2017, 2017
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Recent surging of Kyagar Glacier (Karakoram) caused a hazardous ice-dammed lake to form and burst in 2015 and 2016. We use remotely sensed glacier surface velocities and surface elevation to observe dramatic changes in speed and mass distribution during the surge. The surge was hydrologically controlled with rapid summer onset and dramatic termination following lake outburst. Since the surge, the potential outburst hazard has remained high, and continued remote monitoring is crucial.
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.
Mauro Fischer, Matthias Huss, Mario Kummert, and Martin Hoelzle
The Cryosphere, 10, 1279–1295, https://doi.org/10.5194/tc-10-1279-2016, https://doi.org/10.5194/tc-10-1279-2016, 2016
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This study provides the first thorough validation of geodetic glacier mass changes derived from close-range high-resolution remote sensing techniques, and highlights the potential of terrestrial laser scanning for repeated mass balance monitoring of very small alpine glaciers. The presented methodology is promising, as laborious and potentially dangerous in situ measurements as well as the spatial inter- and extrapolation of point measurements over the entire glacier can be circumvented.
James S. Douglas, Matthias Huss, Darrel A. Swift, Julie M. Jones, and Franco Salerno
The Cryosphere Discuss., https://doi.org/10.5194/tc-2016-116, https://doi.org/10.5194/tc-2016-116, 2016
Revised manuscript has not been submitted
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Glacier behaviour in high-mountain Asia is different from other regions due to debris cover and ice stagnation. This study incorporates these factors into a glacio-hydrological model for the first time at the Khumbu Glacier, Nepal. We show that including debris provides a more realistic representation of the Khumbu Glacier than in previous runoff models, and that changes to the debris surface significantly influence glacier and runoff evolution, with impacts on downstream water resources.
J. Gabbi, M. Huss, A. Bauder, F. Cao, and M. Schwikowski
The Cryosphere, 9, 1385–1400, https://doi.org/10.5194/tc-9-1385-2015, https://doi.org/10.5194/tc-9-1385-2015, 2015
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Light-absorbing impurities in snow and ice increase the absorption of solar radiation and thus enhance melting. We investigated the effect of Saharan dust and black carbon on the mass balance of an Alpine glacier over 1914-2014. Snow impurities increased melt by 15-19% depending on the location on the glacier. From the accumulation area towards the equilibrium line, the effect of impurities increased as more frequent years with negative mass balance led to a re-exposure of dust-enriched layers.
L. Sold, M. Huss, A. Eichler, M. Schwikowski, and M. Hoelzle
The Cryosphere, 9, 1075–1087, https://doi.org/10.5194/tc-9-1075-2015, https://doi.org/10.5194/tc-9-1075-2015, 2015
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This study presents a method for estimating annual accumulation rates on a temperate Alpine glacier based on the interpretation of internal reflection horizons in helicopter-borne ground-penetrating radar (GPR) data. In combination with a simple model for firn densification and refreezing of meltwater, GPR can be used not only to complement existing mass balance monitoring programmes but also to retrospectively extend newly initiated time series.
M. Fischer, M. Huss, and M. Hoelzle
The Cryosphere, 9, 525–540, https://doi.org/10.5194/tc-9-525-2015, https://doi.org/10.5194/tc-9-525-2015, 2015
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.
H. Frey, H. Machguth, M. Huss, C. Huggel, S. Bajracharya, T. Bolch, A. Kulkarni, A. Linsbauer, N. Salzmann, and M. Stoffel
The Cryosphere, 8, 2313–2333, https://doi.org/10.5194/tc-8-2313-2014, https://doi.org/10.5194/tc-8-2313-2014, 2014
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Existing methods (area–volume relations, a slope-dependent volume estimation method, and two ice-thickness distribution models) are used to estimate the ice reserves stored in Himalayan–Karakoram glaciers. Resulting volumes range from 2955–4737km³. Results from the ice-thickness distribution models agree well with local measurements; volume estimates from area-related relations exceed the estimates from the other approaches. Evidence on the effect of the selected method on results is provided.
H. Machguth and M. Huss
The Cryosphere, 8, 1741–1755, https://doi.org/10.5194/tc-8-1741-2014, https://doi.org/10.5194/tc-8-1741-2014, 2014
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
M. Huss, A. Voinesco, and M. Hoelzle
Geogr. Helv., 68, 227–237, https://doi.org/10.5194/gh-68-227-2013, https://doi.org/10.5194/gh-68-227-2013, 2013
D. Farinotti and M. Huss
The Cryosphere, 7, 1707–1720, https://doi.org/10.5194/tc-7-1707-2013, https://doi.org/10.5194/tc-7-1707-2013, 2013
D. Finger, A. Hugentobler, M. Huss, A. Voinesco, H. Wernli, D. Fischer, E. Weber, P.-Y. Jeannin, M. Kauzlaric, A. Wirz, T. Vennemann, F. Hüsler, B. Schädler, and R. Weingartner
Hydrol. Earth Syst. Sci., 17, 3261–3277, https://doi.org/10.5194/hess-17-3261-2013, https://doi.org/10.5194/hess-17-3261-2013, 2013
M. Zemp, E. Thibert, M. Huss, D. Stumm, C. Rolstad Denby, C. Nuth, S. U. Nussbaumer, G. Moholdt, A. Mercer, C. Mayer, P. C. Joerg, P. Jansson, B. Hynek, A. Fischer, H. Escher-Vetter, H. Elvehøy, and L. M. Andreassen
The Cryosphere, 7, 1227–1245, https://doi.org/10.5194/tc-7-1227-2013, https://doi.org/10.5194/tc-7-1227-2013, 2013
M. Huss
The Cryosphere, 7, 877–887, https://doi.org/10.5194/tc-7-877-2013, https://doi.org/10.5194/tc-7-877-2013, 2013
Related subject area
Discipline: Glaciers | Subject: Glacier Hydrology
The impact of surface melt rate and catchment characteristics on Greenland Ice Sheet moulin inputs
A conceptual model for glacial lake bathymetric distribution
The evolution of isolated cavities and hydraulic connection at the glacier bed. Part 2: a dynamic viscoelastic model
The evolution of isolated cavities and hydraulic connection at the glacier bed. Part 1: steady states and friction laws
Evaporation over a glacial lake in Antarctica
A local model of snow–firn dynamics and application to the Colle Gnifetti site
Accumulation of legacy fallout radionuclides in cryoconite on Isfallsglaciären (Arctic Sweden) and their downstream spatial distribution
Development of a subglacial lake monitored with radio-echo sounding: case study from the eastern Skaftá cauldron in the Vatnajökull ice cap, Iceland
Geophysical constraints on the properties of a subglacial lake in northwest Greenland
Gulf of Alaska ice-marginal lake area change over the Landsat record and potential physical controls
Sensitivity of subglacial drainage to water supply distribution at the Kongsfjord basin, Svalbard
Buoyant calving and ice-contact lake evolution at Pasterze Glacier (Austria) in the period 1998–2019
An analysis of instabilities and limit cycles in glacier-dammed reservoirs
Coupled modelling of subglacial hydrology and calving-front melting at Store Glacier, West Greenland
Channelized, distributed, and disconnected: subglacial drainage under a valley glacier in the Yukon
Tim Hill and Christine F. Dow
The Cryosphere, 17, 2607–2624, https://doi.org/10.5194/tc-17-2607-2023, https://doi.org/10.5194/tc-17-2607-2023, 2023
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Water flow across the surface of the Greenland Ice Sheet controls the rate of water flow to the glacier bed. Here, we simulate surface water flow for a small catchment on the southwestern Greenland Ice Sheet. Our simulations predict significant differences in the form of surface water flow in high and low melt years depending on the rate and intensity of surface melt. These model outputs will be important in future work assessing the impact of surface water flow on subglacial water pressure.
Taigang Zhang, Weicai Wang, and Baosheng An
The Cryosphere Discuss., https://doi.org/10.5194/tc-2023-12, https://doi.org/10.5194/tc-2023-12, 2023
Revised manuscript accepted for TC
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This study developed a algorithm for glacial lake bathymetric distribution modeling. We assumed the idealized geometry of a glacial lake basin as hemispherical or conical, for example, a semi-ellipsoidal body. A total of 10 such standard conceptual models were identified. We nested the most appropriate conceptual model into the actual glacial lake basin to construct the water depth contours and interpolate the glacial lake bathymetric distribution. The applicability of this method was verified.
Christian Schoof
EGUsphere, https://doi.org/10.5194/egusphere-2022-1400, https://doi.org/10.5194/egusphere-2022-1400, 2023
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The subglacial drainage of melt water plays a major role in regulating glacier and ice sheet flow. In this paper, I construct and solve a mathematical model that describes how connections are made within the subglacial drainage system. This will aid future efforts to predict glacier response to surface melt supply.
Christian Schoof
EGUsphere, https://doi.org/10.5194/egusphere-2022-1380, https://doi.org/10.5194/egusphere-2022-1380, 2023
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Computational models that seek to predict the future behaviour of ice sheets and glaciers typically rely on being able to compute the rate at which a glacier slides over its bed. In this paper, I show that the degree to which the glacier bed is "hydraulically connected" (how easily water can flow along the glacier bed) plays a central role in determining how fast ice can slide.
Elena Shevnina, Miguel Potes, Timo Vihma, Tuomas Naakka, Pankaj Ramji Dhote, and Praveen Kumar Thakur
The Cryosphere, 16, 3101–3121, https://doi.org/10.5194/tc-16-3101-2022, https://doi.org/10.5194/tc-16-3101-2022, 2022
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The evaporation over an ice-free glacial lake was measured in January 2018, and the uncertainties inherent to five indirect methods were quantified. Results show that in summer up to 5 mm of water evaporated daily from the surface of the lake located in Antarctica. The indirect methods underestimated the evaporation over the lake's surface by up to 72 %. The results are important for estimating the evaporation over polar regions where a growing number of glacial lakes have recently been evident.
Fabiola Banfi and Carlo De Michele
The Cryosphere, 16, 1031–1056, https://doi.org/10.5194/tc-16-1031-2022, https://doi.org/10.5194/tc-16-1031-2022, 2022
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Climate changes require a dynamic description of glaciers in hydrological models. In this study we focus on the local modelling of snow and firn. We tested our model at the site of Colle Gnifetti, 4400–4550 m a.s.l. The model shows that wind erodes all the precipitation of the cold months, while snow is in part conserved between April and September since higher temperatures protect snow from erosion. We also compared modelled and observed firn density, obtaining a satisfying agreement.
Caroline C. Clason, Will H. Blake, Nick Selmes, Alex Taylor, Pascal Boeckx, Jessica Kitch, Stephanie C. Mills, Giovanni Baccolo, and Geoffrey E. Millward
The Cryosphere, 15, 5151–5168, https://doi.org/10.5194/tc-15-5151-2021, https://doi.org/10.5194/tc-15-5151-2021, 2021
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Our paper presents results of sample collection and subsequent geochemical analyses from the glaciated Isfallsglaciären catchment in Arctic Sweden. The data suggest that material found on the surface of glaciers,
cryoconite, is very efficient at accumulating products of nuclear fallout transported in the atmosphere following events such as the Chernobyl disaster. We investigate how this compares with samples in the downstream environment and consider potential environmental implications.
Eyjólfur Magnússon, Finnur Pálsson, Magnús T. Gudmundsson, Thórdís Högnadóttir, Cristian Rossi, Thorsteinn Thorsteinsson, Benedikt G. Ófeigsson, Erik Sturkell, and Tómas Jóhannesson
The Cryosphere, 15, 3731–3749, https://doi.org/10.5194/tc-15-3731-2021, https://doi.org/10.5194/tc-15-3731-2021, 2021
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We present a unique insight into the shape and development of a subglacial lake over a 7-year period, using repeated radar survey. The lake collects geothermal meltwater, which is released in semi-regular floods, often referred to as jökulhlaups. The applicability of our survey approach to monitor the water stored in the lake for a better assessment of the potential hazard of jökulhlaups is demonstrated by comparison with independent measurements of released water volume during two jökulhlaups.
Ross Maguire, Nicholas Schmerr, Erin Pettit, Kiya Riverman, Christyna Gardner, Daniella N. DellaGiustina, Brad Avenson, Natalie Wagner, Angela G. Marusiak, Namrah Habib, Juliette I. Broadbeck, Veronica J. Bray, and Samuel H. Bailey
The Cryosphere, 15, 3279–3291, https://doi.org/10.5194/tc-15-3279-2021, https://doi.org/10.5194/tc-15-3279-2021, 2021
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In the last decade, airborne radar surveys have revealed the presence of lakes below the Greenland ice sheet. However, little is known about their properties, including their depth and the volume of water they store. We performed a ground-based geophysics survey in northwestern Greenland and, for the first time, were able to image the depth of a subglacial lake and estimate its volume. Our findings have implications for the thermal state and stability of the ice sheet in northwest Greenland.
Hannah R. Field, William H. Armstrong, and Matthias Huss
The Cryosphere, 15, 3255–3278, https://doi.org/10.5194/tc-15-3255-2021, https://doi.org/10.5194/tc-15-3255-2021, 2021
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The growth of a glacier lake alters the hydrology, ecology, and glaciology of its surrounding region. We investigate modern glacier lake area change across northwestern North America using repeat satellite imagery. Broadly, we find that lakes downstream from glaciers grew, while lakes dammed by glaciers shrunk. Our results suggest that the shape of the landscape surrounding a glacier lake plays a larger role in determining how quickly a lake changes than climatic or glaciologic factors.
Chloé Scholzen, Thomas V. Schuler, and Adrien Gilbert
The Cryosphere, 15, 2719–2738, https://doi.org/10.5194/tc-15-2719-2021, https://doi.org/10.5194/tc-15-2719-2021, 2021
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We use a two-dimensional model of water flow below the glaciers in Kongsfjord, Svalbard, to investigate how different processes of surface-to-bed meltwater transfer affect subglacial hydraulic conditions. The latter are important for the sliding motion of glaciers, which in some cases exhibit huge variations. Our findings indicate that the glaciers in our study area undergo substantial sliding because water is poorly evacuated from their base, with limited influence from the surface hydrology.
Andreas Kellerer-Pirklbauer, Michael Avian, Douglas I. Benn, Felix Bernsteiner, Philipp Krisch, and Christian Ziesler
The Cryosphere, 15, 1237–1258, https://doi.org/10.5194/tc-15-1237-2021, https://doi.org/10.5194/tc-15-1237-2021, 2021
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Present climate warming leads to glacier recession and formation of lakes. We studied the nature and rate of lake evolution in the period 1998–2019 at Pasterze Glacier, Austria. We detected for instance several large-scale and rapidly occurring ice-breakup events from below the water level. This process, previously not reported from the European Alps, might play an important role at alpine glaciers in the future as many glaciers are expected to recede into valley basins allowing lake formation.
Christian Schoof
The Cryosphere, 14, 3175–3194, https://doi.org/10.5194/tc-14-3175-2020, https://doi.org/10.5194/tc-14-3175-2020, 2020
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Glacier lake outburst floods are major glacial hazards in which ice-dammed reservoirs rapidly drain, often in a recurring fashion. The main flood phase typically involves a growing channel being eroded into ice by water flow. What is poorly understood is how that channel first comes into being. In this paper, I investigate how an under-ice drainage system composed of small, naturally occurring voids can turn into a channel and how this can explain the cyclical behaviour of outburst floods.
Samuel J. Cook, Poul Christoffersen, Joe Todd, Donald Slater, and Nolwenn Chauché
The Cryosphere, 14, 905–924, https://doi.org/10.5194/tc-14-905-2020, https://doi.org/10.5194/tc-14-905-2020, 2020
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This paper models how water flows beneath a large Greenlandic glacier and how the structure of the drainage system it flows in changes over time. We also look at how this affects melting driven by freshwater plumes at the glacier front, as well as the implications for glacier flow and sea-level rise. We find an active drainage system and plumes exist year round, contradicting previous assumptions and suggesting more melting may not slow the glacier down, unlike at other sites in Greenland.
Camilo Rada and Christian Schoof
The Cryosphere, 12, 2609–2636, https://doi.org/10.5194/tc-12-2609-2018, https://doi.org/10.5194/tc-12-2609-2018, 2018
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We analyse a large glacier borehole pressure dataset and provide a holistic view of the observations, suggesting a consistent picture of the evolution of the subglacial drainage system. Some aspects are consistent with the established understanding and others ones are not. We propose that most of the inconsistencies arise from the capacity of some areas of the bed to become hydraulically isolated. We present an adaptation of an existing drainage model that incorporates this phenomena.
Cited articles
Ancey, C., Bardou, E., Funk, M., Huss, M., Werder, M. A., and Trewhela, T.:
Hydraulic Reconstruction of the 1818 Giétro Glacial Lake Outburst Flood,
Water Resour. Res., 55, 8840–8863, https://doi.org/10.1029/2019WR025274, 2019. a, b, c, d
Aydin, I., Ger, A. M., and Hincal, O.: Measurement of small discharges in open
channels by slit weir, J. Hydraul. Eng., 128, 234–237,
https://doi.org/10.1061/(ASCE)0733-9429(2002)128:2(234), 2002. a
Aydin, I., Altan-Sakarya, A. B., and Ger, A. M.: Performance of slit weir,
J. Hydraul. Eng., 132, 987–989,
https://doi.org/10.1061/(ASCE)0733-9429(2006)132:9(987), 2006. a
Björnsson, H.: Jökulhlaups in Iceland: prediction, characteristics and
simulation, Ann. Glaciol., 16, 95–106,
https://doi.org/10.3189/1992AoG16-1-95-106, 1992. a
Björnsson, H.: Subglacial lakes and jökulhlaups in Iceland, Global
Planet. Change, 35, 255–271, https://doi.org/10.1016/S0921-8181(02)00130-3,
2002. a
Björnsson, H.: Understanding jökulhlaups: from tale to theory, J.
Glaciol., 56, 1002–1010, https://doi.org/10.3189/002214311796406086, 2010. a, b
Brinkerhoff, D., Aschwanden, A., and Fahnestock, M.: Constraining subglacial
processes from surface velocity observations using surrogate-based Bayesian
inference, J. Glaciol., 67, 1–19, https://doi.org/10.1017/jog.2020.112,
2021. a
Bundesamt für Umwelt: Hydrologisches Jahrbuch der Schweiz 2019, Tech.
rep., Bundesamt für Umwelt, Bern,
available at: https://www.bafu.admin.ch/uz-2019-d (last access: 10 November 2021), 2020. a
Carlson, F. B.: MonteCarloMeasurements.jl: Nonlinear Propagation of Arbitrary
Multivariate Distributions by means of Method Overloading, GitHub [code],
available at: https://github.com/baggepinnen/MonteCarloMeasurements.jl (last access: 10 November 2021),
2020. a
Finger, D., Hugentobler, A., Huss, M., Voinesco, A., Wernli, H., Fischer, D., Weber, E., Jeannin, P.-Y., Kauzlaric, M., Wirz, A., Vennemann, T., Hüsler, F., Schädler, B., and Weingartner, R.: Identification of glacial meltwater runoff in a karstic environment and its implication for present and future water availability, Hydrol. Earth Syst. Sci., 17, 3261–3277, https://doi.org/10.5194/hess-17-3261-2013, 2013. a
Gemeinde Lenk: Informationsveranstaltung Hochwasserschutz Gletschersee und
Simme,
available at: https://web.archive.org/web/20210517092845/http://www.lenkgemeinde.ch/dl.php/de/5c423874232b9/Informationsanlass_HWS_2019-01-18.pdf (last access: 10 November 2021),
2019. a
GLAMOS: The Swiss Glaciers 2015/16 and 2016/17, Bauder, A., Huss. M.,
and Linsbauer, A. (Eds.). Glaciological Report No. 137/138 of the Cryospheric
Commission (EKK) of the Swiss Academy of Sciences (SCNAT), VAW/ETH Zürich, Tech. rep., https://doi.org/10.18752/glrep_137-138, 2018. a
GLAMOS: The Swiss Glaciers 2017/18 and 2018/19, edited by: Bauder, A., Huss, M., and Linsbauer, A., Glaciological Report No. 139/140 of the Cryospheric
Commission (EKK) of the Swiss Academy of Sciences (SCNAT), VAW/ETH Zürich, Tech. rep., https://doi.org/10.18752/glrep_139-140, 2020. a
Gleason, C. J., Smith, L. C., Chu, V. W., Legleiter, C. J., Pitcher, L. H.,
Overstreet, B. T., Rennermalm, A. K., Forster, R. R., and Yang, K.:
Characterizing supraglacial meltwater channel hydraulics on the Greenland
Ice Sheet from in situ observations, Earth Surf. Proc. Land., 41, 2111–2122, https://doi.org/10.1002/esp.3977, 2016. a, b
Haeberli, W.: Frequency and characteristics of glacier floods in the Swiss
Alps, Ann. Glaciol., 4, 85–90, https://doi.org/10.3189/S0260305500005280, 1983. a
Hock, R.: A distributed temperature-index ice-and snowmelt model including
potential direct solar radiation, J. Glaciol., 45, 101–111,
https://doi.org/10.3189/S0022143000003087, 1999. a
Huss, M., Voinesco, A., and Hoelzle, M.: Implications of climate change on Glacier de la Plaine Morte, Switzerland, Geogr. Helv., 68, 227–237, https://doi.org/10.5194/gh-68-227-2013, 2013. a, b, c
Huss, M., Dhulst, L., and Bauder, A.: New long-term mass-balance series for the
Swiss Alps, J. Glaciol., 61, 551–562, https://doi.org/10.3189/2015JoG15J015,
2015. a
Huss, M., Bauder, A., Linsbauer, A., Gabbi, J., Kappenberger, G., Steinegger,
U., and Farinotti, D.: More than a century of direct glacier mass-balance
observations on Claridenfirn, Switzerland, J. Glaciol., 67, 1–17,
https://doi.org/10.1017/jog.2021.22, 2021. a
Irarrazaval, I., Werder, M. A., Huss, M., Herman, F., and Mariethoz, G.:
Determining the evolution of an alpine glacier drainage system by solving
inverse problems, J. Glaciol., 67, 1–14,
https://doi.org/10.1017/jog.2020.116, 2021. a
Isenko, E., Naruse, R., and Mavlyudov, B.: Water temperature in englacial and
supraglacial channels: Change along the flow and contribution to ice melting
on the channel wall, Cold Reg. Sci. Technol., 42, 53–62,
https://doi.org/10.1016/j.coldregions.2004.12.003, 2005. a, b
Jarosch, A. H. and Gudmundsson, M. T.: A numerical model for meltwater channel evolution in glaciers, The Cryosphere, 6, 493–503, https://doi.org/10.5194/tc-6-493-2012, 2012. a, b
Karlstrom, L., Gajjar, P., and Manga, M.: Meander formation in supraglacial
streams, J. Geophys. Res.-Earth, 118, 1897–1907,
https://doi.org/10.1002/jgrf.20135, 2013. a
Karlstrom, L., Zok, A., and Manga, M.: Near-surface permeability in a supraglacial drainage basin on the Llewellyn Glacier, Juneau Icefield, British Columbia, The Cryosphere, 8, 537–546, https://doi.org/10.5194/tc-8-537-2014, 2014. a
Kingslake, J., Ng, F., and Sole, A.: Modelling channelized surface drainage of
supraglacial lakes, J. Glaciol., 61, 185–199,
https://doi.org/10.3189/2015JoG14J158, 2015. a, b
Lindner, F., Walter, F., Laske, G., and Gimbert, F.: Glaciohydraulic seismic tremors on an Alpine glacier, The Cryosphere, 14, 287–308, https://doi.org/10.5194/tc-14-287-2020, 2020. a, b, c
Mayer, C. and Schuler, T. V.: Breaching of an ice dam at Qorlortossup tasia,
south Greenland, Ann. Glaciol., 42, 297–302,
https://doi.org/10.3189/172756405781812989, 2005. a
Mernild, S. H., Hasholt, B., and Liston, G. E.: Water flow through
Mittivakkat Glacier, Ammassalik Island, SE Greenland, Geogr.
Tidsskr.-Den., 106, 25–43,
https://doi.org/10.1080/00167223.2006.10649543, 2006. a
Nye, J. F.: Water flow in glaciers: jökulhlaups, tunnels and veins, J.
Glaciol., 17, 181–207, https://doi.org/10.3189/S002214300001354X, 1976. a, b
Ogier, C., Werder, M., Huss, M., and Farinotti, D.: Drainage of an ice-dammed lake through a supraglacial stream: hydraulics and thermodynamics dataset, https://doi.org/10.3929/ethz-b-000504956, 2021. a
Pitcher, L. H. and Smith, L. C.: Supraglacial Streams and Rivers, Ann. Rev.
Earth Pl. Sc., 47, 421–452, https://doi.org/10.1146/annurev-earth-053018-060212,
2019. a
Richardson, S. D. and Reynolds, J. M.: An overview of glacial hazards in the
Himalayas, Quatern. Int., 65, 31–47,
https://doi.org/10.1016/S1040-6182(99)00035-X, 2000. a
Roberts, M. J.: Jökulhlaups: a reassessment of floodwater flow through
glaciers, Rev. Geophys., 43, RG1002, https://doi.org/10.1029/2003RG000147, 2005. a
Röthlisberger, H.: Water pressure in intra- and subglacial channels,
J. Glaciol., 11, 177–203, https://doi.org/10.3189/S0022143000022188, 1972. a
Shah, R. K. and London, A. L.: Laminar Flow Forced Convection in Ducts,
Advances in Heat Transfer, Academic Press, Inc., New York, 1978. a
Smith, L. C., Chu, V. W., Yang, K., Gleason, C. J., Pitcher, L. H., Rennermalm,
A. K., Legleiter, C. J., Behar, A. E., Overstreet, B. T., Moustafa, S. E.,
et al.: Efficient meltwater drainage through supraglacial streams and rivers
on the southwest Greenland ice sheet, P. Natl. Acad.
Sci. USA, 112, 1001–1006, https://doi.org/10.1073/pnas.1413024112, 2015. a
Sommers, A. N. and Rajaram, H.: Energy Transfer by Turbulent Dissipation in
Glacial Conduits, J. Geophys. Res.-Earth, 125, e2019JF005502,
https://doi.org/10.1029/2019JF005502, 2020. a, b
Spring, U. and Hutter, K.: Numerical studies of jökulhlaups, Cold Reg.
Sci. Technol., 4, 227–244, https://doi.org/10.1016/0165-232X(81)90006-9,
1981. a
Vatne, G. and Irvine-Fynn, T. D. L.: Morphological dynamics of an englacial channel, Hydrol. Earth Syst. Sci., 20, 2947–2964, https://doi.org/10.5194/hess-20-2947-2016, 2016. a
Vincent, C., Garambois, S., Thibert, E., Lefebvre, E., Le Meur, E., and Six,
D.: Origin of the outburst flood from Glacier de Tête Rousse in 1892
(Mont Blanc area, France), J. Glaciol., 56, 688–698,
https://doi.org/10.3189/002214310793146188, 2010b. a, b, c
Vincent, C., Descloitres, M., Garambois, S., Legchenko, A., Guyard, H., and
Gilbert, A.: Detection of a subglacial lake in Glacier de Tête
Rousse (Mont Blanc area, France), J. Glaciol., 58, 866–878,
https://doi.org/10.3189/2012JoG11J179, 2012. a
Walder, J. S. and Costa, J. E.: Outburst floods from glacier-dammed lakes: The
effect of mode of lake drainage on flood magnitude, Earth Surf. Proc.
Land., 21, 701–723,
https://doi.org/10.1002/(SICI)1096-9837(199608)21:8<701::AID-ESP615>3.0.CO;2-2, 1996. a, b, c, d
Short summary
Glacier-dammed lakes are prone to draining rapidly when the ice dam breaks and constitute a serious threat to populations downstream. Such a lake drainage can proceed through an open-air channel at the glacier surface. In this study, we present what we believe to be the most complete dataset to date of an ice-dammed lake drainage through such an open-air channel. We provide new insights for future glacier-dammed lake drainage modelling studies and hazard assessments.
Glacier-dammed lakes are prone to draining rapidly when the ice dam breaks and constitute a...
