Articles | Volume 19, issue 1
https://doi.org/10.5194/tc-19-267-2025
© 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-19-267-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Jan 2025
Research article |
| 22 Jan 2025
| 22 Jan 2025
Creep enhancement and sliding in a temperate, hard-bedded alpine glacier
Juan-Pedro Roldán-Blasco
IGE, Univ. Grenoble Alpes, CNRS, INRAE, IRD, Grenoble INP, 38000 Grenoble, France
Adrien Gilbert
CORRESPONDING AUTHOR
IGE, Univ. Grenoble Alpes, CNRS, INRAE, IRD, Grenoble INP, 38000 Grenoble, France
Luc Piard
IGE, Univ. Grenoble Alpes, CNRS, INRAE, IRD, Grenoble INP, 38000 Grenoble, France
Florent Gimbert
IGE, Univ. Grenoble Alpes, CNRS, INRAE, IRD, Grenoble INP, 38000 Grenoble, France
Christian Vincent
IGE, Univ. Grenoble Alpes, CNRS, INRAE, IRD, Grenoble INP, 38000 Grenoble, France
Olivier Gagliardini
IGE, Univ. Grenoble Alpes, CNRS, INRAE, IRD, Grenoble INP, 38000 Grenoble, France
Anuar Togaibekov
IGE, Univ. Grenoble Alpes, CNRS, INRAE, IRD, Grenoble INP, 38000 Grenoble, France
ISTerre, Univ. Grenoble Alpes, CNRS, IRD, UGE, 38000 Grenoble, France
Andrea Walpersdorf
ISTerre, Univ. Grenoble Alpes, CNRS, IRD, UGE, 38000 Grenoble, France
Nathan Maier
IGE, Univ. Grenoble Alpes, CNRS, INRAE, IRD, Grenoble INP, 38000 Grenoble, France
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Marin Kneib, Amaury Dehecq, Adrien Gilbert, Auguste Basset, Evan S. Miles, Guillaume Jouvet, Bruno Jourdain, Etienne Ducasse, Luc Beraud, Antoine Rabatel, Jérémie Mouginot, Guillem Carcanade, Olivier Laarman, Fanny Brun, and Delphine Six
The Cryosphere, 18, 5965–5983, https://doi.org/10.5194/tc-18-5965-2024, https://doi.org/10.5194/tc-18-5965-2024, 2024
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Avalanches contribute to increasing the accumulation on mountain glaciers by redistributing snow from surrounding mountains slopes. Here we quantified the contribution of avalanches to the mass balance of Argentière Glacier in the French Alps, by combining satellite and field observations to model the glacier dynamics. We show that the contribution of avalanches locally increases the accumulation by 60–70 % and that accounting for this effect results in less ice loss by the end of the century.
Mohd Farooq Azam, Christian Vincent, Smriti Srivastava, Etienne Berthier, Patrick Wagnon, Himanshu Kaushik, Md. Arif Hussain, Manoj Kumar Munda, Arindan Mandal, and Alagappan Ramanathan
The Cryosphere, 18, 5653–5672, https://doi.org/10.5194/tc-18-5653-2024, https://doi.org/10.5194/tc-18-5653-2024, 2024
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Mass balance series on Chhota Shigri Glacier has been reanalysed by combining the traditional mass balance reanalysis framework and a nonlinear model. The nonlinear model is preferred over traditional glaciological methods to compute the mass balances, as the former can capture the spatiotemporal variability in point mass balances from a heterogeneous in situ point mass balance network. The nonlinear model outperforms the traditional method and agrees better with the geodetic estimates.
Susanne Preunkert, Pascal Bohleber, Michel Legrand, Adrien Gilbert, Tobias Erhardt, Roland Purtschert, Lars Zipf, Astrid Waldner, Joseph R. McConnell, and Hubertus Fischer
The Cryosphere, 18, 2177–2194, https://doi.org/10.5194/tc-18-2177-2024, https://doi.org/10.5194/tc-18-2177-2024, 2024
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Ice cores from high-elevation Alpine glaciers are an important tool to reconstruct the past atmosphere. However, since crevasses are common at these glacier sites, rigorous investigations of glaciological conditions upstream of drill sites are needed before interpreting such ice cores. On the basis of three ice cores extracted at Col du Dôme (4250 m a.s.l; French Alps), an overall picture of a dynamic crevasse formation is drawn, which disturbs the depth–age relation of two of the three cores.
Emily A. Hill, Benoît Urruty, Ronja Reese, Julius Garbe, Olivier Gagliardini, Gaël Durand, Fabien Gillet-Chaulet, G. Hilmar Gudmundsson, Ricarda Winkelmann, Mondher Chekki, David Chandler, and Petra M. Langebroek
The Cryosphere, 17, 3739–3759, https://doi.org/10.5194/tc-17-3739-2023, https://doi.org/10.5194/tc-17-3739-2023, 2023
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The grounding lines of the Antarctic Ice Sheet could enter phases of irreversible retreat or advance. We use three ice sheet models to show that the present-day locations of Antarctic grounding lines are reversible with respect to a small perturbation away from their current position. This indicates that present-day retreat of the grounding lines is not yet irreversible or self-enhancing.
Ronja Reese, Julius Garbe, Emily A. Hill, Benoît Urruty, Kaitlin A. Naughten, Olivier Gagliardini, Gaël Durand, Fabien Gillet-Chaulet, G. Hilmar Gudmundsson, David Chandler, Petra M. Langebroek, and Ricarda Winkelmann
The Cryosphere, 17, 3761–3783, https://doi.org/10.5194/tc-17-3761-2023, https://doi.org/10.5194/tc-17-3761-2023, 2023
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We use an ice sheet model to test where current climate conditions in Antarctica might lead. We find that present-day ocean and atmosphere conditions might commit an irreversible collapse of parts of West Antarctica which evolves over centuries to millennia. Importantly, this collapse is not irreversible yet.
Christian Vincent and Emmanuel Thibert
The Cryosphere, 17, 1989–1995, https://doi.org/10.5194/tc-17-1989-2023, https://doi.org/10.5194/tc-17-1989-2023, 2023
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Temperature-index models have been widely used for glacier mass projections in the future. The ability of these models to capture non-linear responses of glacier mass balance (MB) to high deviations in air temperature and solid precipitation has recently been questioned by mass balance simulations employing advanced machine-learning techniques. Here, we confirmed that temperature-index models are capable of detecting non-linear responses of glacier MB to temperature and precipitation changes.
Rubén Basantes-Serrano, Antoine Rabatel, Bernard Francou, Christian Vincent, Alvaro Soruco, Thomas Condom, and Jean Carlo Ruíz
The Cryosphere, 16, 4659–4677, https://doi.org/10.5194/tc-16-4659-2022, https://doi.org/10.5194/tc-16-4659-2022, 2022
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We assessed the volume variation of 17 glaciers on the Antisana ice cap, near the Equator. We used aerial and satellite images for the period 1956–2016. We highlight very negative changes in 1956–1964 and 1979–1997 and slightly negative or even positive conditions in 1965–1978 and 1997–2016, the latter despite the recent increase in temperatures. Glaciers react according to regional climate variability, while local humidity and topography influence the specific behaviour of each glacier.
Małgorzata Chmiel, Maxime Godano, Marco Piantini, Pierre Brigode, Florent Gimbert, Maarten Bakker, Françoise Courboulex, Jean-Paul Ampuero, Diane Rivet, Anthony Sladen, David Ambrois, and Margot Chapuis
Nat. Hazards Earth Syst. Sci., 22, 1541–1558, https://doi.org/10.5194/nhess-22-1541-2022, https://doi.org/10.5194/nhess-22-1541-2022, 2022
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On 2 October 2020, the French Maritime Alps were struck by an extreme rainfall event caused by Storm Alex. Here, we show that seismic data provide the timing and velocity of the propagation of flash-flood waves along the Vésubie River. We also detect 114 small local earthquakes triggered by the rainwater weight and/or its infiltration into the ground. This study paves the way for future works that can reveal further details of the impact of Storm Alex on the Earth’s surface and subsurface.
Christophe Genthon, Dana E. Veron, Etienne Vignon, Jean-Baptiste Madeleine, and Luc Piard
Earth Syst. Sci. Data, 14, 1571–1580, https://doi.org/10.5194/essd-14-1571-2022, https://doi.org/10.5194/essd-14-1571-2022, 2022
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The surface atmosphere of the high Antarctic Plateau is very cold and clean. Such conditions favor water vapor supersaturation. A 3-year quasi-continuous series of atmospheric moisture in a ~40 m atmospheric layer at Dome C is reported that documents time variability, vertical profiles and occurrences of supersaturation. Supersaturation with respect to ice is frequently observed throughout the column, with relative humidities occasionally reaching values near liquid water saturation.
R. Akhmetov, G. Makhmetova, E. Orynbassarova, A. Baltiyeva, A. Togaibekov, K. Roberts, and A. Yerzhankyzy
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVI-5-W1-2022, 7–14, https://doi.org/10.5194/isprs-archives-XLVI-5-W1-2022-7-2022, https://doi.org/10.5194/isprs-archives-XLVI-5-W1-2022-7-2022, 2022
Anna Derkacheva, Fabien Gillet-Chaulet, Jeremie Mouginot, Eliot Jager, Nathan Maier, and Samuel Cook
The Cryosphere, 15, 5675–5704, https://doi.org/10.5194/tc-15-5675-2021, https://doi.org/10.5194/tc-15-5675-2021, 2021
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Along the edges of the Greenland Ice Sheet surface melt lubricates the bed and causes large seasonal fluctuations in ice speeds during summer. Accurately understanding how these ice speed changes occur is difficult due to the inaccessibility of the glacier bed. We show that by using surface velocity maps with high temporal resolution and numerical modelling we can infer the basal conditions that control seasonal fluctuations in ice speed and gain insight into seasonal dynamics over large areas.
Marco Piantini, Florent Gimbert, Hervé Bellot, and Alain Recking
Earth Surf. Dynam., 9, 1423–1439, https://doi.org/10.5194/esurf-9-1423-2021, https://doi.org/10.5194/esurf-9-1423-2021, 2021
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We carry out laboratory experiments to investigate the formation and propagation dynamics of exogenous sediment pulses in mountain rivers. We show that the ability of a self-formed deposit to destabilize and generate sediment pulses depends on the sand content of the mixture, while each pulse turns out to be formed by a front, a body, and a tail. Seismic measurements reveal a complex and non-unique dependency between seismic power and sediment pulse transport characteristics.
Marguerite Mathey, Christian Sue, Colin Pagani, Stéphane Baize, Andrea Walpersdorf, Thomas Bodin, Laurent Husson, Estelle Hannouz, and Bertrand Potin
Solid Earth, 12, 1661–1681, https://doi.org/10.5194/se-12-1661-2021, https://doi.org/10.5194/se-12-1661-2021, 2021
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This work features the highest-resolution seismic stress and strain fields available at the present time for the analysis of the active crustal deformation of the Western Alps. In this paper, we address a large dataset of newly computed focal mechanisms from a statistical standpoint, which allows us to suggest a joint control from far-field forces and from buoyancy forces on the present-day deformation of the Western Alps.
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 Kääb, Mylène Jacquemart, Adrien Gilbert, Silvan Leinss, Luc Girod, Christian Huggel, Daniel Falaschi, Felipe Ugalde, Dmitry Petrakov, Sergey Chernomorets, Mikhail Dokukin, Frank Paul, Simon Gascoin, Etienne Berthier, and Jeffrey S. Kargel
The Cryosphere, 15, 1751–1785, https://doi.org/10.5194/tc-15-1751-2021, https://doi.org/10.5194/tc-15-1751-2021, 2021
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Hardly recognized so far, giant catastrophic detachments of glaciers are a rare but great potential for loss of lives and massive damage in mountain regions. Several of the events compiled in our study involve volumes (up to 100 million m3 and more), avalanche speeds (up to 300 km/h), and reaches (tens of kilometres) that are hard to imagine. We show that current climate change is able to enhance associated hazards. For the first time, we elaborate a set of factors that could cause these events.
Nathan Maier, Florent Gimbert, Fabien Gillet-Chaulet, and Adrien Gilbert
The Cryosphere, 15, 1435–1451, https://doi.org/10.5194/tc-15-1435-2021, https://doi.org/10.5194/tc-15-1435-2021, 2021
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In Greenland, ice motion and the surface geometry depend on the friction at the bed. We use satellite measurements and modeling to determine how ice speeds and friction are related across the ice sheet. The relationships indicate that ice flowing over bed bumps sets the friction across most of the ice sheet's on-land regions. This result helps simplify and improve our understanding of how ice motion will change in the future.
Christian Vincent, Diego Cusicanqui, Bruno Jourdain, Olivier Laarman, Delphine Six, Adrien Gilbert, Andrea Walpersdorf, Antoine Rabatel, Luc Piard, Florent Gimbert, Olivier Gagliardini, Vincent Peyaud, Laurent Arnaud, Emmanuel Thibert, Fanny Brun, and Ugo Nanni
The Cryosphere, 15, 1259–1276, https://doi.org/10.5194/tc-15-1259-2021, https://doi.org/10.5194/tc-15-1259-2021, 2021
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In situ glacier point mass balance data are crucial to assess climate change in different regions of the world. Unfortunately, these data are rare because huge efforts are required to conduct in situ measurements on glaciers. Here, we propose a new approach from remote sensing observations. The method has been tested on the Argentière and Mer de Glace glaciers (France). It should be possible to apply this method to high-spatial-resolution satellite images and on numerous glaciers in the world.
Vincent Peyaud, Coline Bouchayer, Olivier Gagliardini, Christian Vincent, Fabien Gillet-Chaulet, Delphine Six, and Olivier Laarman
The Cryosphere, 14, 3979–3994, https://doi.org/10.5194/tc-14-3979-2020, https://doi.org/10.5194/tc-14-3979-2020, 2020
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Alpine glaciers are retreating at an accelerating rate in a warming climate. Numerical models allow us to study and anticipate these changes, but the performance of a model is difficult to evaluate. So we compared an ice flow model with the long dataset of observations obtained between 1979 and 2015 on Mer de Glace (Mont Blanc area). The model accurately reconstructs the past evolution of the glacier. We simulate the future evolution of Mer de Glace; it could retreat by 2 to 6 km by 2050.
Ugo Nanni, Florent Gimbert, Christian Vincent, Dominik Gräff, Fabian Walter, Luc Piard, and Luc Moreau
The Cryosphere, 14, 1475–1496, https://doi.org/10.5194/tc-14-1475-2020, https://doi.org/10.5194/tc-14-1475-2020, 2020
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Our study addresses key questions on the subglacial drainage system physics through a novel observational approach that overcomes traditional limitations. We conducted, over 2 years, measurements of the subglacial water-flow-induced seismic noise and of glacier basal sliding speeds. We then inverted for the subglacial channel's hydraulic pressure gradient and hydraulic radius and investigated the links between the equilibrium state of subglacial channels and glacier basal sliding.
Amandine Sergeant, Małgorzata Chmiel, Fabian Lindner, Fabian Walter, Philippe Roux, Julien Chaput, Florent Gimbert, and Aurélien Mordret
The Cryosphere, 14, 1139–1171, https://doi.org/10.5194/tc-14-1139-2020, https://doi.org/10.5194/tc-14-1139-2020, 2020
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This study explores the capacity to apply ambient noise interferometry to passive seismic recordings in glaciers. Green's function between two seismometers represents the impulse response of the elastic medium. It can be approximated from cross-correlation of random seismic wave fields. For glaciers, its recovery is notoriously difficult due to weak ice seismic scattering. We propose three methods to bridge the gap and show the potential for passive seismic imaging and monitoring of glaciers.
Christian Vincent, Adrien Gilbert, Bruno Jourdain, Luc Piard, Patrick Ginot, Vladimir Mikhalenko, Philippe Possenti, Emmanuel Le Meur, Olivier Laarman, and Delphine Six
The Cryosphere, 14, 925–934, https://doi.org/10.5194/tc-14-925-2020, https://doi.org/10.5194/tc-14-925-2020, 2020
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We observed very low glacier thickness changes over the last decades at very-high-elevation glaciated areas on Mont Blanc. Conversely, measurements performed in deep boreholes since 1994 reveal strong changes in englacial temperature reaching 1.5 °C at a depth of 50 m. We conclude that at such very high elevations, current changes in climate do not lead to visible changes in glacier thickness but cause invisible changes within the glacier in terms of englacial temperatures.
Fabian Lindner, Fabian Walter, Gabi Laske, and Florent Gimbert
The Cryosphere, 14, 287–308, https://doi.org/10.5194/tc-14-287-2020, https://doi.org/10.5194/tc-14-287-2020, 2020
Lionel Favier, Nicolas C. Jourdain, Adrian Jenkins, Nacho Merino, Gaël Durand, Olivier Gagliardini, Fabien Gillet-Chaulet, and Pierre Mathiot
Geosci. Model Dev., 12, 2255–2283, https://doi.org/10.5194/gmd-12-2255-2019, https://doi.org/10.5194/gmd-12-2255-2019, 2019
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The melting at the base of floating ice shelves is the main driver of the Antarctic ice sheet current retreat. Here, we use an ideal set-up to assess a wide range of melting parameterisations depending on oceanic properties with regard to a new ocean–ice-sheet coupled model, published here for the first time. A parameterisation that depends quadratically on thermal forcing in both a local and a non-local way yields the best results and needs to be further assessed with more realistic set-ups.
Julien Brondex, Fabien Gillet-Chaulet, and Olivier Gagliardini
The Cryosphere, 13, 177–195, https://doi.org/10.5194/tc-13-177-2019, https://doi.org/10.5194/tc-13-177-2019, 2019
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Here, we apply a synthetic perturbation to the most active drainage basin of Antarctica and show that centennial mass loss projections obtained through ice flow models depend strongly on the implemented friction law, i.e. the mathematical relationship between basal drag and sliding velocities. In particular, the commonly used Weertman law considerably underestimates the sea-level contribution of this basin in comparison to two water pressure-dependent laws which rely on stronger physical bases.
Fanny Brun, Patrick Wagnon, Etienne Berthier, Joseph M. Shea, Walter W. Immerzeel, Philip D. A. Kraaijenbrink, Christian Vincent, Camille Reverchon, Dibas Shrestha, and Yves Arnaud
The Cryosphere, 12, 3439–3457, https://doi.org/10.5194/tc-12-3439-2018, https://doi.org/10.5194/tc-12-3439-2018, 2018
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On debris-covered glaciers, steep ice cliffs experience dramatically enhanced melt compared with the surrounding debris-covered ice. Using field measurements, UAV data and submetre satellite imagery, we estimate the cliff contribution to 2 years of ablation on a debris-covered tongue in Nepal, carefully taking into account ice dynamics. While they occupy only 7 to 8 % of the tongue surface, ice cliffs contributed to 23 to 24 % of the total tongue ablation.
Marianne Haseloff, Christian Schoof, and Olivier Gagliardini
The Cryosphere, 12, 2545–2568, https://doi.org/10.5194/tc-12-2545-2018, https://doi.org/10.5194/tc-12-2545-2018, 2018
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The widths of the Siple Coast ice streams evolve on decadal to centennial timescales. We investigate how the rate of thermally driven ice stream widening depends on heat dissipation in the ice stream margin and at the bed, and on the inflow of cold ice from the ice ridge. As determining the migration rate requires resolving heat transfer processes on very small scales, we derive a parametrization of the migration rate in terms of parameters that are available from large-scale model outputs.
Olivier Passalacqua, Marie Cavitte, Olivier Gagliardini, Fabien Gillet-Chaulet, Frédéric Parrenin, Catherine Ritz, and Duncan Young
The Cryosphere, 12, 2167–2174, https://doi.org/10.5194/tc-12-2167-2018, https://doi.org/10.5194/tc-12-2167-2018, 2018
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Locating a suitable drill site is a key step in the Antarctic oldest-ice challenge. Here we have conducted a 3-D ice flow simulation in the region of Dome C using a refined bedrock description. Five selection criteria are computed that together provide an objective overview on the local ice flow conditions. We delineate kilometer-scale favorable areas that overlap with the ones recently proposed by another group. We propose a few drill sites that should be surveyed during the next field seasons.
Heiko Goelzer, Sophie Nowicki, Tamsin Edwards, Matthew Beckley, Ayako Abe-Ouchi, Andy Aschwanden, Reinhard Calov, Olivier Gagliardini, Fabien Gillet-Chaulet, Nicholas R. Golledge, Jonathan Gregory, Ralf Greve, Angelika Humbert, Philippe Huybrechts, Joseph H. Kennedy, Eric Larour, William H. Lipscomb, Sébastien Le clec'h, Victoria Lee, Mathieu Morlighem, Frank Pattyn, Antony J. Payne, Christian Rodehacke, Martin Rückamp, Fuyuki Saito, Nicole Schlegel, Helene Seroussi, Andrew Shepherd, Sainan Sun, Roderik van de Wal, and Florian A. Ziemen
The Cryosphere, 12, 1433–1460, https://doi.org/10.5194/tc-12-1433-2018, https://doi.org/10.5194/tc-12-1433-2018, 2018
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We have compared a wide spectrum of different initialisation techniques used in the ice sheet modelling community to define the modelled present-day Greenland ice sheet state as a starting point for physically based future-sea-level-change projections. Compared to earlier community-wide comparisons, we find better agreement across different models, which implies overall improvement of our understanding of what is needed to produce such initial states.
Marion Réveillet, Delphine Six, Christian Vincent, Antoine Rabatel, Marie Dumont, Matthieu Lafaysse, Samuel Morin, Vincent Vionnet, and Maxime Litt
The Cryosphere, 12, 1367–1386, https://doi.org/10.5194/tc-12-1367-2018, https://doi.org/10.5194/tc-12-1367-2018, 2018
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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This paper makes a rather exhaustive overview of current knowledge of past, current, and future aspects of cryospheric issues in continental Europe and makes a number of reflections of areas of uncertainty requiring more attention in both scientific and policy terms. The review paper is completed by a bibliography containing 350 recent references that will certainly be of value to scholars engaged in the fields of glacier, snow, and permafrost research.
Frédéric Parrenin, Marie G. P. Cavitte, Donald D. Blankenship, Jérôme Chappellaz, Hubertus Fischer, Olivier Gagliardini, Valérie Masson-Delmotte, Olivier Passalacqua, Catherine Ritz, Jason Roberts, Martin J. Siegert, and Duncan A. Young
The Cryosphere, 11, 2427–2437, https://doi.org/10.5194/tc-11-2427-2017, https://doi.org/10.5194/tc-11-2427-2017, 2017
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The oldest dated deep ice core drilled in Antarctica has been retrieved at EPICA Dome C (EDC), reaching ~ 800 000 years. Obtaining an older palaeoclimatic record from Antarctica is one of the greatest challenges of the ice core community. Here, we estimate the age of basal ice in the Dome C area. We find that old ice (> 1.5 Myr) likely exists in two regions a few tens of kilometres away from EDC:
Little Dome C Patchand
North Patch.
Rupert Michael Gladstone, Roland Charles Warner, Benjamin Keith Galton-Fenzi, Olivier Gagliardini, Thomas Zwinger, and Ralf Greve
The Cryosphere, 11, 319–329, https://doi.org/10.5194/tc-11-319-2017, https://doi.org/10.5194/tc-11-319-2017, 2017
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Computer models are used to simulate the behaviour of glaciers and ice sheets. It has been found that such models are required to be run at very high resolution (which means high computational expense) in order to accurately represent the evolution of marine ice sheets (ice sheets resting on bedrock below sea level), in certain situations which depend on sub-glacial physical processes.
Tong Zhang, Stephen Price, Lili Ju, Wei Leng, Julien Brondex, Gaël Durand, and Olivier Gagliardini
The Cryosphere, 11, 179–190, https://doi.org/10.5194/tc-11-179-2017, https://doi.org/10.5194/tc-11-179-2017, 2017
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Stokes-flow models are the highest-fidelity representation of the equations governing ice sheet flow and they are often treated as the standard against which other models are compared in model benchmark activities. We compare two different Stokes models applied to a canonical set of idealized marine ice sheet experiments and demonstrate that the solutions converge with increasing grid resolution. This provides confidence in the use of Stokes models for generating test case solution metrics.
Christophe Genthon, Luc Piard, Etienne Vignon, Jean-Baptiste Madeleine, Mathieu Casado, and Hubert Gallée
Atmos. Chem. Phys., 17, 691–704, https://doi.org/10.5194/acp-17-691-2017, https://doi.org/10.5194/acp-17-691-2017, 2017
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Natural atmospheric supersaturation is a norm rather than an exception at the surface of Dome C on the Antarctic Plateau. This is reported by hygrometers adapted to perform in extreme cold environments and avoid release of excess moisture before it is measured. One year of observation shows that atmospheric models with cold microphysics parameterizations designed for high altitude cirrus reproduce frequently but fail with the detailed statistics of supersaturation at the surface of Dome C.
Christian Vincent, Patrick Wagnon, Joseph M. Shea, Walter W. Immerzeel, Philip Kraaijenbrink, Dibas Shrestha, Alvaro Soruco, Yves Arnaud, Fanny Brun, Etienne Berthier, and Sonam Futi Sherpa
The Cryosphere, 10, 1845–1858, https://doi.org/10.5194/tc-10-1845-2016, https://doi.org/10.5194/tc-10-1845-2016, 2016
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Approximately 25 % of the glacierized area in the Everest region is covered by debris, yet the surface mass balance of these glaciers has not been measured directly. From terrestrial photogrammetry and unmanned aerial vehicle (UAV) methods, this study shows that the ablation is strongly reduced by the debris cover. The insulating effect of the debris cover has a larger effect on total mass loss than the enhanced ice ablation due to supraglacial ponds and exposed ice cliffs.
Olivier Passalacqua, Olivier Gagliardini, Frédéric Parrenin, Joe Todd, Fabien Gillet-Chaulet, and Catherine Ritz
Geosci. Model Dev., 9, 2301–2313, https://doi.org/10.5194/gmd-9-2301-2016, https://doi.org/10.5194/gmd-9-2301-2016, 2016
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In ice-flow modelling, computing in 3-D requires a lot of resources, but 2-D models lack physical likelihood when the flow is diverging. That is why 2-D models accounting for the divergence, so-called 2.5-D models, are an interesting trade-off. However, the applicability of these 2.5-D models has never been systematically examined. We show that these models are ineffective in the case of highly diverging flows, but also for varying temperature, which was not suspected.
O. Gagliardini, J. Brondex, F. Gillet-Chaulet, L. Tavard, V. Peyaud, and G. Durand
The Cryosphere, 10, 307–312, https://doi.org/10.5194/tc-10-307-2016, https://doi.org/10.5194/tc-10-307-2016, 2016
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In this paper it is shown that the sensitivity to the mesh resolution is not
improved for a vanishing friction at the grounding line (GL). For a discontinuous friction at the GL, we further show that the results are moreover very sensitive to the way the friction is interpolated in the close vicinity of the GL. In the light of these new insights, new results for the MISMIP3d experiments obtained for higher resolutions than previously published are made available for future comparisons.
J. J. Fürst, G. Durand, F. Gillet-Chaulet, N. Merino, L. Tavard, J. Mouginot, N. Gourmelen, and O. Gagliardini
The Cryosphere, 9, 1427–1443, https://doi.org/10.5194/tc-9-1427-2015, https://doi.org/10.5194/tc-9-1427-2015, 2015
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We present a comprehensive high-resolution assimilation of Antarctic surface velocities with a flow model. The inferred velocities are in very good agreement with observations, even when compared to recent studies on individual shelves. This quality allows to identify a pattern in the velocity mismatch that points at pinning points not present in the input geometry. We identify seven potential pinning points around Antarctica, for now uncharted, providing prominent resistance to the ice flow.
J. Krug, J. Weiss, O. Gagliardini, and G. Durand
The Cryosphere, 8, 2101–2117, https://doi.org/10.5194/tc-8-2101-2014, https://doi.org/10.5194/tc-8-2101-2014, 2014
H. Brenot, A. Walpersdorf, M. Reverdy, J. van Baelen, V. Ducrocq, C. Champollion, F. Masson, E. Doerflinger, P. Collard, and P. Giroux
Atmos. Meas. Tech., 7, 553–578, https://doi.org/10.5194/amt-7-553-2014, https://doi.org/10.5194/amt-7-553-2014, 2014
J. Krug, J. Weiss, O. Gagliardini, and G. Durand
The Cryosphere Discuss., https://doi.org/10.5194/tcd-8-1111-2014, https://doi.org/10.5194/tcd-8-1111-2014, 2014
Preprint withdrawn
T. L. Edwards, X. Fettweis, O. Gagliardini, F. Gillet-Chaulet, H. Goelzer, J. M. Gregory, M. Hoffman, P. Huybrechts, A. J. Payne, M. Perego, S. Price, A. Quiquet, and C. Ritz
The Cryosphere, 8, 181–194, https://doi.org/10.5194/tc-8-181-2014, https://doi.org/10.5194/tc-8-181-2014, 2014
T. L. Edwards, X. Fettweis, O. Gagliardini, F. Gillet-Chaulet, H. Goelzer, J. M. Gregory, M. Hoffman, P. Huybrechts, A. J. Payne, M. Perego, S. Price, A. Quiquet, and C. Ritz
The Cryosphere, 8, 195–208, https://doi.org/10.5194/tc-8-195-2014, https://doi.org/10.5194/tc-8-195-2014, 2014
A. Legchenko, C. Vincent, J. M. Baltassat, J. F. Girard, E. Thibert, O. Gagliardini, M. Descloitres, A. Gilbert, S. Garambois, A. Chevalier, and H. Guyard
The Cryosphere, 8, 155–166, https://doi.org/10.5194/tc-8-155-2014, https://doi.org/10.5194/tc-8-155-2014, 2014
B. de Fleurian, O. Gagliardini, T. Zwinger, G. Durand, E. Le Meur, D. Mair, and P. Råback
The Cryosphere, 8, 137–153, https://doi.org/10.5194/tc-8-137-2014, https://doi.org/10.5194/tc-8-137-2014, 2014
P. Wagnon, C. Vincent, Y. Arnaud, E. Berthier, E. Vuillermoz, S. Gruber, M. Ménégoz, A. Gilbert, M. Dumont, J. M. Shea, D. Stumm, and B. K. Pokhrel
The Cryosphere, 7, 1769–1786, https://doi.org/10.5194/tc-7-1769-2013, https://doi.org/10.5194/tc-7-1769-2013, 2013
O. Gagliardini, T. Zwinger, F. Gillet-Chaulet, G. Durand, L. Favier, B. de Fleurian, R. Greve, M. Malinen, C. Martín, P. Råback, J. Ruokolainen, M. Sacchettini, M. Schäfer, H. Seddik, and J. Thies
Geosci. Model Dev., 6, 1299–1318, https://doi.org/10.5194/gmd-6-1299-2013, https://doi.org/10.5194/gmd-6-1299-2013, 2013
C. Vincent, Al. Ramanathan, P. Wagnon, D. P. Dobhal, A. Linda, E. Berthier, P. Sharma, Y. Arnaud, M. F. Azam, P. G. Jose, and J. Gardelle
The Cryosphere, 7, 569–582, https://doi.org/10.5194/tc-7-569-2013, https://doi.org/10.5194/tc-7-569-2013, 2013
A. S. Drouet, D. Docquier, G. Durand, R. Hindmarsh, F. Pattyn, O. Gagliardini, and T. Zwinger
The Cryosphere, 7, 395–406, https://doi.org/10.5194/tc-7-395-2013, https://doi.org/10.5194/tc-7-395-2013, 2013
E. Thibert, N. Eckert, and C. Vincent
The Cryosphere, 7, 47–66, https://doi.org/10.5194/tc-7-47-2013, https://doi.org/10.5194/tc-7-47-2013, 2013
F. Gillet-Chaulet, O. Gagliardini, H. Seddik, M. Nodet, G. Durand, C. Ritz, T. Zwinger, R. Greve, and D. G. Vaughan
The Cryosphere, 6, 1561–1576, https://doi.org/10.5194/tc-6-1561-2012, https://doi.org/10.5194/tc-6-1561-2012, 2012
G. H. Gudmundsson, J. Krug, G. Durand, L. Favier, and O. Gagliardini
The Cryosphere, 6, 1497–1505, https://doi.org/10.5194/tc-6-1497-2012, https://doi.org/10.5194/tc-6-1497-2012, 2012
Related subject area
Discipline: Glaciers | Subject: Ice Physics
In situ estimation of ice crystal properties at the South Pole using LED calibration data from the IceCube Neutrino Observatory
Ultrasonic and seismic constraints on crystallographic preferred orientations of the Priestley Glacier shear margin, Antarctica
Thermal structure of the Amery Ice Shelf from borehole observations and simulations
Attenuation of sound in glacier ice from 2 to 35 kHz
Crystallographic preferred orientations of ice deformed in direct-shear experiments at low temperatures
Rasha Abbasi, Markus Ackermann, Jenni Adams, Nakul Aggarwal, Juanan Aguilar, Markus Ahlers, Maryon Ahrens, Jean-Marco Alameddine, Antonio Augusto Alves Junior, Najia Moureen Binte Amin, Karen Andeen, Tyler Anderson, Gisela Anton, Carlos Argüelles, Yosuke Ashida, Sofia Athanasiadou, Spencer Axani, Xinhua Bai, Aswathi Balagopal V, Moreno Baricevic, Steve Barwick, Vedant Basu, Ryan Bay, James Beatty, Karl Heinz Becker, Julia Becker Tjus, Jakob Beise, Chiara Bellenghi, Samuel Benda, Segev BenZvi, David Berley, Elisa Bernardini, Dave Besson, Gary Binder, Daniel Bindig, Erik Blaufuss, Summer Blot, Federico Bontempo, Julia Book, Jürgen Borowka, Caterina Boscolo Meneguolo, Sebastian Böser, Olga Botner, Jakob Böttcher, Etienne Bourbeau, Jim Braun, Bennett Brinson, Jannes Brostean-Kaiser, Ryan Burley, Raffaela Busse, Michael Campana, Erin Carnie-Bronca, Chujie Chen, Zheyang Chen, Dmitry Chirkin, Koun Choi, Brian Clark, Lew Classen, Alan Coleman, Gabriel Collin, Amy Connolly, Janet Conrad, Paul Coppin, Pablo Correa, Stefan Countryman, Doug Cowen, Robert Cross, Christian Dappen, Pranav Dave, Catherine De Clercq, James DeLaunay, Diyaselis Delgado López, Hans Dembinski, Kunal Deoskar, Abhishek Desai, Paolo Desiati, Krijn de Vries, Gwenhael de Wasseige, Tyce DeYoung, Alejandro Diaz, Juan Carlos Díaz-Vélez, Markus Dittmer, Hrvoje Dujmovic, Michael DuVernois, Thomas Ehrhardt, Philipp Eller, Ralph Engel, Hannah Erpenbeck, John Evans, Paul Evenson, Kwok Lung Fan, Ali Fazely, Anatoli Fedynitch, Nora Feigl, Sebastian Fiedlschuster, Aaron Fienberg, Chad Finley, Leander Fischer, Derek Fox, Anna Franckowiak, Elizabeth Friedman, Alexander Fritz, Philipp Fürst, Tom Gaisser, Jay Gallagher, Erik Ganster, Alfonso Garcia, Simone Garrappa, Lisa Gerhardt, Ava Ghadimi, Christian Glaser, Thorsten Glüsenkamp, Theo Glauch, Noah Goehlke, Javier Gonzalez, Sreetama Goswami, Darren Grant, Shannon Gray, Timothée Grégoire, Spencer Griswold, Christoph Günther, Pascal Gutjahr, Christian Haack, Allan Hallgren, Robert Halliday, Lasse Halve, Francis Halzen, Hassane Hamdaoui, Martin Ha Minh, Kael Hanson, John Hardin, Alexander Harnisch, Patrick Hatch, Andreas Haungs, Klaus Helbing, Jonas Hellrung, Felix Henningsen, Lars Heuermann, Stephanie Hickford, Colton Hill, Gary Hill, Kara Hoffman, Kotoyo Hoshina, Wenjie Hou, Thomas Huber, Klas Hultqvist, Mirco Hünnefeld, Raamis Hussain, Karolin Hymon, Seongjin In, Nadege Iovine, Aya Ishihara, Matti Jansson, George Japaridze, Minjin Jeong, Miaochen Jin, Ben Jones, Donghwa Kang, Woosik Kang, Xinyue Kang, Alexander Kappes, David Kappesser, Leonora Kardum, Timo Karg, Martina Karl, Albrecht Karle, Uli Katz, Matt Kauer, John Kelley, Ali Kheirandish, Ken'ichi Kin, Joanna Kiryluk, Spencer Klein, Alina Kochocki, Ramesh Koirala, Hermann Kolanoski, Tomas Kontrimas, Lutz Köpke, Claudio Kopper, Jason Koskinen, Paras Koundal, Michael Kovacevich, Marek Kowalski, Tetiana Kozynets, Emmett Krupczak, Emma Kun, Naoko Kurahashi, Neha Lad, Cristina Lagunas Gualda, Michael Larson, Frederik Lauber, Jeffrey Lazar, Jiwoong Lee, Kayla Leonard, Agnieszka Leszczyńska, Massimiliano Lincetto, Qinrui Liu, Maria Liubarska, Elisa Lohfink, Christina Love, Cristian Jesus Lozano Mariscal, Lu Lu, Francesco Lucarelli, Andrew Ludwig, William Luszczak, Yang Lyu, Wing Yan Ma, Jim Madsen, Kendall Mahn, Yuya Makino, Sarah Mancina, Wenceslas Marie Sainte, Ioana Mariş, Szabolcs Marka, Zsuzsa Marka, Matthew Marsee, Ivan Martinez-Soler, Reina Maruyama, Thomas McElroy, Frank McNally, James Vincent Mead, Kevin Meagher, Sarah Mechbal, Andres Medina, Maximilian Meier, Stephan Meighen-Berger, Yarno Merckx, Jessie Micallef, Daniela Mockler, Teresa Montaruli, Roger Moore, Bob Morse, Marjon Moulai, Tista Mukherjee, Richard Naab, Ryo Nagai, Uwe Naumann, Amid Nayerhoda, Jannis Necker, Miriam Neumann, Hans Niederhausen, Mehr Nisa, Sarah Nowicki, Anna Obertacke Pollmann, Marie Oehler, Bob Oeyen, Alex Olivas, Rasmus Orsoe, Jesse Osborn, Erin O'Sullivan, Hershal Pandya, Daria Pankova, Nahee Park, Grant Parker, Ek Narayan Paudel, Larissa Paul, Carlos Pérez de los Heros, Lilly Peters, Josh Peterson, Saskia Philippen, Sarah Pieper, Alex Pizzuto, Matthias Plum, Yuiry Popovych, Alessio Porcelli, Maria Prado Rodriguez, Brandon Pries, Rachel Procter-Murphy, Gerald Przybylski, Christoph Raab, John Rack-Helleis, Mohamed Rameez, Katherine Rawlins, Zoe Rechav, Abdul Rehman, Patrick Reichherzer, Giovanni Renzi, Elisa Resconi, Simeon Reusch, Wolfgang Rhode, Mike Richman, Benedikt Riedel, Ella Roberts, Sally Robertson, Steven Rodan, Gerrit Roellinghoff, Martin Rongen, Carsten Rott, Tim Ruhe, Li Ruohan, Dirk Ryckbosch, Devyn Rysewyk Cantu, Ibrahim Safa, Julian Saffer, Daniel Salazar-Gallegos, Pranav Sampathkumar, Sebastian Sanchez Herrera, Alexander Sandrock, Marcos Santander, Sourav Sarkar, Subir Sarkar, Merlin Schaufel, Harald Schieler, Sebastian Schindler, Berit Schlüter, Torsten Schmidt, Judith Schneider, Frank Schröder, Lisa Schumacher, Georg Schwefer, Steve Sclafani, Dave Seckel, Surujhdeo Seunarine, Ankur Sharma, Shefali Shefali, Nobuhiro Shimizu, Manuel Silva, Barbara Skrzypek, Ben Smithers, Robert Snihur, Jan Soedingrekso, Andreas Søgaard, Dennis Soldin, Christian Spannfellner, Glenn Spiczak, Christian Spiering, Michael Stamatikos, Todor Stanev, Robert Stein, Thorsten Stezelberger, Timo Stürwald, Thomas Stuttard, Greg Sullivan, Ignacio Taboada, Samvel Ter-Antonyan, Will Thompson, Jessie Thwaites, Serap Tilav, Kirsten Tollefson, Christoph Tönnis, Simona Toscano, Delia Tosi, Alexander Trettin, Chun Fai Tung, Roxanne Turcotte, Jean Pierre Twagirayezu, Bunheng Ty, Martin Unland Elorrieta, Karriem Upshaw, Nora Valtonen-Mattila, Justin Vandenbroucke, Nick van Eijndhoven, David Vannerom, Jakob van Santen, Javi Vara, Joshua Veitch-Michaelis, Stef Verpoest, Doga Veske, Christian Walck, Winnie Wang, Timothy Blake Watson, Chris Weaver, Philip Weigel, Andreas Weindl, Jan Weldert, Chris Wendt, Johannes Werthebach, Mark Weyrauch, Nathan Whitehorn, Christopher Wiebusch, Nathan Willey, Dawn Williams, Martin Wolf, Gerrit Wrede, Johan Wulff, Xianwu Xu, Juan Pablo Yanez, Emre Yildizci, Shigeru Yoshida, Shiqi Yu, Tianlu Yuan, Zelong Zhang, and Pavel Zhelnin
The Cryosphere, 18, 75–102, https://doi.org/10.5194/tc-18-75-2024, https://doi.org/10.5194/tc-18-75-2024, 2024
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The IceCube Neutrino Observatory instruments 1 km3 of deep, glacial ice using 5160 sensors to detect light emitted by elementary particles. An unexpected effect observed is anisotropic light attenuation, aligned with the flow direction of the ice. Curved light trajectories resulting from asymmetric diffusion in the birefringent polycrystalline microstructure of the ice have been identified as the primary cause of this effect. This allows us to deduce ice crystal properties.
Franz Lutz, David J. Prior, Holly Still, M. Hamish Bowman, Bia Boucinhas, Lisa Craw, Sheng Fan, Daeyeong Kim, Robert Mulvaney, Rilee E. Thomas, and Christina L. Hulbe
The Cryosphere, 16, 3313–3329, https://doi.org/10.5194/tc-16-3313-2022, https://doi.org/10.5194/tc-16-3313-2022, 2022
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Ice crystal alignment in the sheared margins of fast-flowing polar ice is important as it may control the ice sheet flow rate, from land to the ocean. Sampling shear margins is difficult because of logistical and safety considerations. We show that crystal alignments in a glacier shear margin in Antarctica can be measured using sound waves. Results from a seismic experiment on the 50 m scale and from ultrasonic experiments on the decimetre scale match ice crystal measurements from an ice core.
Yu Wang, Chen Zhao, Rupert Gladstone, Ben Galton-Fenzi, and Roland Warner
The Cryosphere, 16, 1221–1245, https://doi.org/10.5194/tc-16-1221-2022, https://doi.org/10.5194/tc-16-1221-2022, 2022
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The thermal structure of the Amery Ice Shelf and its spatial pattern are evaluated and analysed through temperature observations from six boreholes and numerical simulations. The simulations demonstrate significant ice warming downstream along the ice flow and a great variation of the thermal structure across the ice flow. We suggest that the thermal structure of the Amery Ice Shelf is unlikely to be affected by current climate changes on decadal timescales.
Alexander Meyer, Dmitry Eliseev, Dirk Heinen, Peter Linder, Franziska Scholz, Lars Steffen Weinstock, Christopher Wiebusch, and Simon Zierke
The Cryosphere, 13, 1381–1394, https://doi.org/10.5194/tc-13-1381-2019, https://doi.org/10.5194/tc-13-1381-2019, 2019
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The acoustic damping in natural glaciers is a largely unexplored physical property that has relevance for various applications particularly for the exploration of glaciers with probes. We present measurements of the attenuation of sound in situ on the Italian glacier Langenferner. The tested frequency ranges from 2 to 35 kHz. The attenuation length ranges between 13 m for low frequencies and 5 m for high frequencies.
Chao Qi, David J. Prior, Lisa Craw, Sheng Fan, Maria-Gema Llorens, Albert Griera, Marianne Negrini, Paul D. Bons, and David L. Goldsby
The Cryosphere, 13, 351–371, https://doi.org/10.5194/tc-13-351-2019, https://doi.org/10.5194/tc-13-351-2019, 2019
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Ice deformed in nature develops crystallographic preferred orientations, CPOs, which induce an anisotropy in ice viscosity. Shear experiments of ice revealed a transition in CPO with changing temperature/strain, which is due to the change of dominant CPO-formation mechanism: strain-induced grain boundary migration dominates at higher temperatures and lower strains, while lattice rotation dominates at other conditions. Understanding these mechanisms aids the interpretation of CPOs in natural ice.
Cited articles
Adams, C. J., Iverson, N. R., Helanow, C., Zoet, L. K., and Bate, C. E.: Softening of Temperate Ice by Interstitial Water, Front. Earth Sci., 9, 1–11, https://doi.org/10.3389/feart.2021.702761, 2021. a
Amundson, J. M., Truffer, M., and Lüthi, M. P.: Time-dependent basal stress conditions beneath Black Rapids Glacier, Alaska, USA, inferred from measurements of ice deformation and surface motion, J. Glaciol., 52, 347–357, https://doi.org/10.3189/172756506781828593, 2006. a
Arthern, R. J. and Gudmundsson, G. H.: Initialization of ice-sheet forecasts viewed as an inverse Robin problem, J. Glaciol., 56, 527–533, https://doi.org/10.3189/002214310792447699, 2010. a
Barnes, P., Tabor, D., and Walker, J. C. F.: The friction and creep of polycrystalline ice, P. Roy. Soc. Lond. A, 324, 127–155, https://doi.org/10.1098/rspa.1971.0132, 1971. a, b
Behn, M. D., Goldsby, D. L., and Hirth, G.: The role of grain size evolution in the rheology of ice: implications for reconciling laboratory creep data and the Glen flow law, The Cryosphere, 15, 4589–4605, https://doi.org/10.5194/tc-15-4589-2021, 2021. a
Benjumea, B., Macheret, Y. Y., Navarro, F. J., and Teixidó, T.: Estimation of water content in a temperate glacier from radar and seismic sounding data, Ann. Glaciol., 37, 317–324, https://doi.org/10.3189/172756403781815924, 2003. a
Beraud, L., Cusicanqui, D., Rabatel, A., Brun, F., Vincent, C., and Six, D.: Glacier-wide seasonal and annual geodetic mass balances from Pléiades stereo images: application to the Glacier d'Argentière, French Alps, J. Glaciol., 69, 525–537, https://doi.org/10.1017/jog.2022.79, 2022. a
Bock, Y., Gourevitch, S. A., Counselman, III, C. C., King, R. W., and Abbot, R. I.: Interferometric analysis of GPS phase observations, Manuscripta Geodaetica, 11, 282–288, 1986. a
Booth, A. D., Christoffersen, P., Schoonman, C., Clarke, A., Hubbard, B., Law, R., Doyle, S. H., Chudley, T. R., and Chalari, A.: Distributed Acoustic Sensing of Seismic Properties in a Borehole Drilled on a Fast-Flowing Greenlandic Outlet Glacier, Geophys. Res. Lett., 47, e2020GL088148, https://doi.org/10.1029/2020GL088148, 2020. a
Budd, W. F. and Jacka, T. H.: A review of ice rheology for ice sheet modelling, Cold Reg. Sci. Technol., 16, 107–144, https://doi.org/10.1016/0165-232X(89)90014-1, 1989. a
Chandler, D., Hubbard, B., Hubbard, A., Murray, T., and Rippin, D.: Optimising ice flow law parameters using borehole deformation measurements and numerical modelling, Geophys. Res. Lett., 35, L12502, https://doi.org/10.1029/2008GL033801, 2008. a, b
Chauve, T., Montagnat, M., Dansereau, V., Saramito, P., Fourteau, K., and Tommasi, A.: A physically-based formulation for texture evolution during dynamic recrystallization. A case study of ice, Comptes Rendus. Mécanique, 352, 99–134, https://doi.org/10.5802/crmeca.243, 2024. a, b
Cohen, D.: Rheology of ice at the bed of engabreen, Norway, J. Glaciol., 46, 611–621, https://doi.org/10.3189/172756500781832620, 2000.
Doyle, S. H., Hubbard, B., Christoffersen, P., Young, T. J., Hofstede, C., Bougamont, M., Box, J. E., and Hubbard, A.: Physical Conditions of Fast Glacier Flow: 1. Measurements From Boreholes Drilled to the Bed of Store Glacier, West Greenland, J. Geophys. Res.-Earth Surf., 123, 324–348, https://doi.org/10.1002/2017JF004529, 2018. a, b
Endres, A. L., Murray, T., Booth, A. D., and West, L. J.: A new framework for estimating englacial water content and pore geometry using combined radar and seismic wave velocities, Geophys. Res. Lett., 36, L04501, https://doi.org/10.1029/2008GL036876, 2009. a
Fichtner, A., Hofstede, C., Gebraad, L., Zunino, A., Zigone, D., and Eisen, O.: Borehole fibre-optic seismology inside the Northeast Greenland Ice Stream, Geophys. J. Int., 235, 2430–2441, https://doi.org/10.1093/gji/ggad344, 2023. a
Fürst, J. J., Durand, G., Gillet-Chaulet, F., Merino, N., Tavard, L., Mouginot, J., Gourmelen, N., and Gagliardini, O.: Assimilation of Antarctic velocity observations provides evidence for uncharted pinning points, The Cryosphere, 9, 1427–1443, https://doi.org/10.5194/tc-9-1427-2015, 2015. a
Gagliardini, O., Zwinger, T., Gillet-Chaulet, F., Durand, G., Favier, L., de Fleurian, B., Greve, R., Malinen, M., Martín, C., Råback, P., Ruokolainen, J., Sacchettini, M., Schäfer, M., Seddik, H., and Thies, J.: Capabilities and performance of Elmer/Ice, a new-generation ice sheet model, Geosci. Model Dev., 6, 1299–1318, https://doi.org/10.5194/gmd-6-1299-2013, 2013. a
Gajek, W., Gräff, D., Hellmann, S., Rempel, A. W., and Walter, F.: Diurnal expansion and contraction of englacial fracture networks revealed by seismic shear wave splitting, Commun. Earth Environ., 2, 1–8, https://doi.org/10.1038/s43247-021-00279-4, 2021. a
Gilbert, A., Gimbert, F., Thøgersen, K., Schuler, T. V., and Kääb, A.: A Consistent Framework for Coupling Basal Friction With Subglacial Hydrology on Hard-Bedded Glaciers, Geophys. Res. Lett., 49, e2021GL097507, https://doi.org/10.1029/2021GL097507, 2022. a, b
Gilbert, A., Gimbert, F., Gagliardini, O., and Vincent, C.: Inferring the Basal Friction Law From Long Term Changes of Glacier Length, Thickness and Velocity on an Alpine Glacier, Geophys. Res. Lett., 50, e2023GL104503, https://doi.org/10.1029/2023GL104503, 2023. a, b, c
Gimbert, F., Gilbert, A., Gagliardini, O., Vincent, C., and Moreau, L.: Do Existing Theories Explain Seasonal to Multi-Decadal Changes in Glacier Basal Sliding Speed?, Geophys. Res. Lett., 48, 1–10, https://doi.org/10.1029/2021GL092858, 2021a. a, b, c
Gimbert, F., Nanni, U., Roux, P., Helmstetter, A., Garambois, S., Lecointre, A., Walpersdorf, A., Jourdain, B., Langlais, M., Laarman, O., Lindner, F., Sergeant, A., Vincent, C., and Walter, F.: A multi-physics experiment with a temporary dense seismic array on the argentière Glacier, French Alps: The RESOLVE project, Seismol. Res. Lett., 92, 1185–1201, https://doi.org/10.1785/0220200280, 2021b. a
Glen, J. W.: The creep of polycrystalline ice, P. Roy. Soc. Lond. A, 228, 519–538, https://doi.org/10.1098/rspa.1955.0066, 1955. a
Goldsby, D. L. and Kohlstedt, D. L.: Superplastic deformation of ice: Experimental observations, J. Geophys. Res.-Sol. Ea., 106, 11017–11030, https://doi.org/10.1029/2000JB900336, 2001. a
Gudmundsson, G. H.: Basal-flow characteristics of a non-linear flow sliding frictionless over strongly undulating bedrock, J. Glaciol., 43, 80–89, https://doi.org/10.1017/s0022143000002835, 1997a. a
Gudmundsson, G. H.: Basal-flow characteristics of a linear medium sliding frictionless over small bedrock undulations, J. Glaciol., 43, 71–79, https://doi.org/10.1017/s0022143000002823, 1997b. a, b
Gudmundsson, G. H., Bauder, A., Lüthi, M., Fischer, U. H., and Funk, M.: Estimating rates of basal motion and internal ice deformation from continuous tilt measurements, Ann. Glaciol., 28, 247–252, https://doi.org/10.3189/172756499781821751, 1999. a, b, c
Hantz, D. and Lliboutry, L.: Waterways, Ice Permeability at Depth, and Water Pressures at Glacier D’Argentière, French Alps, J. Glaciol., 29, 227–239, https://doi.org/10.3189/S0022143000008285, 1983. a
Harper, J. T., Humphrey, N. F., Pfeffer, W. T., Huzurbazar, S. V., Bahr, D. B., and Welch, B. C.: Spatial variability in the flow of a valley glacier: Deformation of a large array of boreholes, J. Geophys. Res.-Sol. Ea., 106, 8547–8562, https://doi.org/10.1029/2000jb900440, 2001. a, b
Herring, T. A., King, R. W., and McClusky, S. C.: GPS analysis at MIT, GAMIT reference manual, Massachusetts Institute of Technology, 2018. a
Hooke, R. L.: Structure and Flow in the Margin of the Barnes Ice Cap, Baffin Island, N.W.T., Canada, J. Glaciol., 12, 423–438, https://doi.org/10.3189/s0022143000031841, 1973. a
Hooke, R. L. B. and Hanson, B.: Borehole deformation experiments, Barnes Ice Cap, Canada, Cold Reg. Sci. Technol., 12, 261–276, https://doi.org/10.1016/0165-232X(86)90039-X, 1986. a
Hubbard, B. P., Hubbard, A., Mader, H. M., Tison, J. L., Grust, K., and Nienow, P. W.: Spatial variability in the water content and rheology of temperate glaciers: Glacier de Tsanfleuron, Switzerland, Ann. Glaciol., 37, 1–6, https://doi.org/10.3189/172756403781815474, 2003.
Jones, S. J. and Glen, J. W.: The effect of dissolved impurities on the mechanical properties of ice crystals, Philos. Mag., 19, 13–24, https://doi.org/10.1080/14786436908217758, 1969. a
Joubert, J.-L.: Stratigraphie de la glace tempérée à l'aide de la teneur en eau liquide, Comptes rendus académie des sciences, p. 3638, 1963.
Keller, A. and Blatter, H.: Measurement of strain-rate components in a glacier with embedded inclinometers, J. Glaciol., 58, 692–698, https://doi.org/10.3189/2012JoG11J234, 2012. a, b, c
Law, R., Christoffersen, P., MacKie, E., Cook, S., Haseloff, M., and Gagliardini, O.: Complex motion of Greenland Ice Sheet outlet glaciers with basal temperate ice, Sci. Adv., 9, eabq5180, https://doi.org/10.1126/sciadv.abq5180, 2023. a
Lee, I. R., Hawley, R. L., Bernsen, S., Campbell, S. W., Clemens-Sewall, D., Gerbi, C. C., and Hruby, K.: A novel tilt sensor for studying ice deformation: Application to streaming ice on Jarvis Glacier, Alaska, J. Glaciol., 66, 74–82, https://doi.org/10.1017/jog.2019.84, 2019. a
Legchenko, A., Vincent, C., Baltassat, J. M., Girard, J. F., Thibert, E., Gagliardini, O., Descloitres, M., Gilbert, A., Garambois, S., Chevalier, A., and Guyard, H.: Monitoring water accumulation in a glacier using magnetic resonance imaging, The Cryosphere, 8, 155–166, https://doi.org/10.5194/tc-8-155-2014, 2014. a
Lliboutry, L.: Une théorie du frottement du glacier sur son lit, Annales de Geophysique, 15, 250, 1959. a
Lliboutry, L.: General theory of subglacial cavitation and sliding of temperate glaciers, J. Glaciol., 7, 21–58, 1968. a
Lliboutry, L.: Permeability, Brine Content and Temperature of Temperate Ice, J. Glaciol., 10, 15–29, https://doi.org/10.3189/s002214300001296x, 1971
Lliboutry, L.: Multivariate Statistical Analysis of Glacier Annual Balances, J. Glaciol., 13, 371–392, https://doi.org/10.3189/s0022143000023169, 1974. a
Lliboutry, L. and Duval, P.: Various isotropic and anisotropic ices found in glaciers and polar ice caps and their corresponding rheologies, Int. J. Rock Mech. Min., 22, 198, https://doi.org/10.1016/0148-9062(85)90267-0, 1985. a, b, c, d
Lüthi, M., Funk, M., Iken, A., Gogineni, S., and Truffer, M.: Mechanisms of fast flow in Jakobshavn Isbræ, West Greenland: Part III. Measurements of ice deformation, temperature and cross-borehole conductivity in boreholes to the bedrock, J. Glaciol., 48, 369–385, https://doi.org/10.3189/172756502781831322, 2002. a, b
Maier, N., Humphrey, N., Harper, J., and Meierbachtol, T.: Sliding dominates slow-flowing margin regions, Greenland Ice Sheet, Sci. Adv., 5, eaaw5406, https://doi.org/10.1126/sciadv.aaw5406, 2019. a, b, c, d
Maier, N., Humphrey, N., Meierbachtol, T., and Harper, J.: Deformation motion tracks sliding changes through summer, western Greenland, J. Glaciol., 68, 187–196, https://doi.org/10.1017/jog.2021.87, 2021. a, b
Maier, N., Gimbert, F., and Gillet-Chaulet, F.: Threshold response to melt drives large-scale bed weakening in Greenland, Nature, 607, 714–720, https://doi.org/10.1038/s41586-022-04927-3, 2022. a
Marshall, H. P., Harper, J. T., Pfeffer, W. T., and Humphrey, N. F.: Depth-varying constitutive properties observed in an isothermal glacier, Geophys. Res. Lett., 29, 61-1–61-4, https://doi.org/10.1029/2002GL015412, 2002. a
Montagnat, M. and Duval, P.: The viscoplastic behaviour of ice in polar ice sheets: experimental results and modelling, Comptes Rendus Physique, 5, 699–708, https://doi.org/10.1016/j.crhy.2004.06.002, 2004. a
Mosbeux, C., Gillet-Chaulet, F., and Gagliardini, O.: Comparison of adjoint and nudging methods to initialise ice sheet model basal conditions, Geosci. Model Dev., 9, 2549–2562, https://doi.org/10.5194/gmd-9-2549-2016, 2016. a
Murray, T., Stuart, G. W., Fry, M., Gamble, N. H., and Crabtree, M. D.: Englacial water distribution in a temperate glacier from surface and borehole radar velocity analysis, J. Glaciol., 46, 389–398, https://doi.org/10.3189/172756500781833188, 2000
Murray, T., Booth, A., and Rippin, D. M.: Water-content of Glacier-ice: Limitations on estimates from velocity analysis of surface ground-penetrating radar surveys, J. Environ. Eng. Geoph., 12, 87–99, https://doi.org/10.2113/JEEG12.1.87, 2007. a
Nanni, U., Gimbert, F., Roux, P., and Lecointre, A.: Observing the subglacial hydrology network and its dynamics with a dense seismic array, P. Natl. Acad. Sci. USA, 118, e2023757118, https://doi.org/10.1073/pnas.2023757118, 2021. a
Nye, J. F.: The Flow of a Glacier in a Channel of Rectangular, Elliptic or Parabolic Cross-Section, J. Glaciol., 5, 661–690, https://doi.org/10.3189/s0022143000018670, 1965. a
Ogier, C., Manen, D.-J. V., Maurer, H., Räss, L., Hertrich, M., Bauder, A., and Farinotti, D.: Ground penetrating radar in temperate ice: englacial water inclusions as limiting factor for data interpretation, J. Glaciol., 69, 1874–1885, https://doi.org/10.1017/jog.2023.68, 2023. a
Perutz, M. F.: Direct Measurement of the Velocity Distribution in a Vertical Profile Through a Glacier, J. Glaciol., 1, 382–383, https://doi.org/10.3189/s0022143000012594, 1949. a
Pettersson, R., Jansson, P., and Blatter, H.: Spatial variability in water content at the cold-temperate transition surface of the polythermal Storglaciären, Sweden, J. Geophys. Res.-Earth Surf., 109, F02009, https://doi.org/10.1029/2003jf000110, 2004. a
Rabatel, A., Sanchez, O., Vincent, C., and Six, D.: Estimation of Glacier Thickness From Surface Mass Balance and Ice Flow Velocities: A Case Study on Argentière Glacier, France, Front. Earth Sci., 6, 112, https://doi.org/10.3389/feart.2018.00112, 2018. a, b
Rathmann, N. M. and Lilien, D. A.: Inferred basal friction and mass flux affected by crystal-orientation fabrics, J. Glaciol., 68, 236–252, https://doi.org/10.1017/jog.2021.88, 2022. a
Raymond, C.: Flow in a Transverse Section of Athabasca Glacier, Alberta, Canada, J. Glaciol., 10, 55–84, https://doi.org/10.3189/s0022143000012995, 1971. a
Roldan-Blasco, J. P., Gilbert, A., Piard, L., Gimbert, F., Christian, V., Gagliardini, O., Togaibekov, A., Walpersdorf, A., and Maier, N.: Data for “Creep enhancement and sliding in a temperate, hard-bedded alpine glacier”, Zenodo [code and data set], https://doi.org/10.5281/zenodo.13961256, 2024. a
Röthlisberger, H.: Water Pressure in Intra- and Subglacial Channels, J. Glaciol., 11, 177–203, https://doi.org/10.3189/S0022143000022188, 1972. a
Ryser, C., Lüthi, M. P., Andrews, L. C., Hoffman, M. J., Catania, G. A., Hawley, R. L., Neumann, T. A., and Kristensen, S. S.: Sustained high basal motion of the Greenland ice sheet revealed by borehole deformation, J. Glaciol., 60, 647–660, https://doi.org/10.3189/2014JoG13J196, 2014. a, b, c
Schoof, C.: Ice-sheet acceleration driven by melt supply variability, Nature, 468, 803–806, https://doi.org/10.1038/nature09618, 2010. a
Sergeant, A., Chmiel, M., Lindner, F., Walter, F., Roux, P., Chaput, J., Gimbert, F., and Mordret, A.: On the Green's function emergence from interferometry of seismic wave fields generated in high-melt glaciers: implications for passive imaging and monitoring, The Cryosphere, 14, 1139–1171, https://doi.org/10.5194/tc-14-1139-2020, 2020. a, b
Shreve, R. and Sharp, R.: Internal Deformation and Thermal Anomalies in Lower Blue Glacier, Mount Olympus, Washington, U.S.A., J. Glaciol., 9, 65–86, https://doi.org/10.3189/S0022143000026800, 1970. a
Togaibekov, A., Gimbert, F., Gilbert, A., and Walpersdorf, A.: Observing and Modeling Short-Term Changes in Basal Friction During Rain-Induced Speed-Ups on an Alpine Glacier, Geophys. Res. Lett., 51, e2023GL107999, https://doi.org/10.1029/2023GL107999, 2024. a, b
Vallon, M., Petit, J.-R., and Fabre, B.: Study of an Ice Core to the Bedrock in the Accumulation zone of an Alpine Glacier, J. Glaciol., 17, 13–28, https://doi.org/10.3189/S0022143000030677, 1976.
Vincent, C. and Moreau, L.: Sliding velocity fluctuations and subglacial hydrology over the last two decades on Argentière glacier, Mont Blanc area, J. Glaciol., 62, 805–815, https://doi.org/10.1017/jog.2016.35, 2016. a
Vincent, C., Fischer, A., Mayer, C., Bauder, A., Galos, S. P., Funk, M., Thibert, E., Six, D., Braun, L., and Huss, M.: Common climatic signal from glaciers in the European Alps over the last 50 years, Geophys. Res. Lett., 44, 1376–1383, https://doi.org/10.1002/2016GL072094, 2017. a
Vincent, C., Gilbert, A., Walpersdorf, A., Gimbert, F., Gagliardini, O., Jourdain, B., Roldan Blasco, J. P., Laarman, O., Piard, L., Six, D., Moreau, L., Cusicanqui, D., and Thibert, E.: Evidence of Seasonal Uplift in the Argentière Glacier (Mont Blanc Area, France), J. Geophys. Res.-Earth Surf., 127, e2021JF006454, https://doi.org/10.1029/2021JF006454, 2022. a, b, c, d
Vivian, R. and Bocquet, G.: Subglacial Cavitation Phenomena Under the Glacier D'Argentière, Mont Blanc, France, J. Glaciol., 12, 439–451, https://doi.org/10.3189/S0022143000031853, 1973. a
Weertman, J.: On the Sliding of Glaciers, J. Glaciol., 3, 33–38, https://doi.org/10.3189/s0022143000024709, 1957. a, b
Weertman, J.: CREEP DEFORMATION OF ICE, Annu. Rev. Earth Planet. Sci., 11, 215–240, https://doi.org/10.1146/annurev.ea.11.050183.001243, 1983. a
Willis, I., Mair, D., Hubbard, B., Nienow, P., Fischer, U. H., and Hubbard, A.: Seasonal variations in ice deformation and basal motion across the tongue of Haut Glacier d'Arolla, Switzerland, Ann. Glaciol., 36, 157–167, https://doi.org/10.3189/172756403781816455, 2003. a, b, c, d
Young, T. J., Martín, C., Christoffersen, P., Schroeder, D. M., Tulaczyk, S. M., and Dawson, E. J.: Rapid and accurate polarimetric radar measurements of ice crystal fabric orientation at the Western Antarctic Ice Sheet (WAIS) Divide ice core site, The Cryosphere, 15, 4117–4133, https://doi.org/10.5194/tc-15-4117-2021, 2021. a
Zryd, A.: Conditions dans la couche basale des glaciers tempérés: contraintes, teneur en eau et frottement intérieur, Ph.D. thesis, ETH, 1991.
Short summary
The flow of glaciers and ice sheets results from ice deformation and basal sliding driven by gravitational forces. Quantifying the rate at which ice deforms under its own weight is critical for assessing glacier evolution. This study uses borehole instrumentation in an Alpine glacier to quantify ice deformation and constrain ice viscosity in a natural setting. Our results show that the viscosity of ice at 0 °C is largely influenced by interstitial liquid water, which enhances ice deformation.
The flow of glaciers and ice sheets results from ice deformation and basal sliding driven by...
