Articles | Volume 16, issue 7
https://doi.org/10.5194/tc-16-2837-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-16-2837-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
19 Jul 2022
Research article |
| 19 Jul 2022
| 19 Jul 2022
Contrasted geomorphological and limnological properties of thermokarst lakes formed in buried glacier ice and ice-wedge polygon terrain
Stéphanie Coulombe
CORRESPONDING AUTHOR
Polar Knowledge Canada, Cambridge Bay, X0B 0C0, Canada
Department of Geography, Université de Montréal,
Montréal, H2V 2B8, Canada
Centre for Northern Studies, Université Laval, Quebec City, G1V
0A6, Canada
Daniel Fortier
CORRESPONDING AUTHOR
Department of Geography, Université de Montréal,
Montréal, H2V 2B8, Canada
Centre for Northern Studies, Université Laval, Quebec City, G1V
0A6, Canada
Frédéric Bouchard
Centre for Northern Studies, Université Laval, Quebec City, G1V
0A6, Canada
Department of Applied Geomatics, Université de Sherbrooke,
Sherbrooke, J1K 2R1, Canada
Michel Paquette
Ecofish Research Ltd, Squamish, V8B 0V2, Canada
Simon Charbonneau
Department of Geography, Université de Montréal,
Montréal, H2V 2B8, Canada
Centre for Northern Studies, Université Laval, Quebec City, G1V
0A6, Canada
Denis Lacelle
Department of Geography, Environment and Geomatics, University of
Ottawa, Ottawa, K1N 6N5, Canada
Isabelle Laurion
Centre for Northern Studies, Université Laval, Quebec City, G1V
0A6, Canada
Centre Eau Terre Environnement, Institut national de la recherche
scientifique, Quebec City, G1K 9A9, Canada
Reinhard Pienitz
Centre for Northern Studies, Université Laval, Quebec City, G1V
0A6, Canada
Department of Geography, Université Laval, Quebec City, G1V 0A6,
Canada
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Stephanie Coulombe, Daniel Fortier, Denis Lacelle, Mikhail Kanevskiy, and Yuri Shur
The Cryosphere, 13, 97–111, https://doi.org/10.5194/tc-13-97-2019, https://doi.org/10.5194/tc-13-97-2019, 2019
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This study provides a detailed description of relict glacier ice preserved in the permafrost of Bylot Island (Nunavut). We demonstrate that the 18O composition (-34.0 0.4 ‰) of the ice is consistent with the late Pleistocene age ice in the Barnes Ice Cap. As most of the glaciated Arctic landscapes are still strongly determined by their glacial legacy, the melting of these large ice bodies could have significant impacts on permafrost geosystem landscape dynamics and ecosystems.
Samuel Gagnon, Daniel Fortier, Étienne Godin, and Audrey Veillette
The Cryosphere, 18, 4743–4763, https://doi.org/10.5194/tc-18-4743-2024, https://doi.org/10.5194/tc-18-4743-2024, 2024
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Thermo-erosion gullies (TEGs) are one of the most common forms of abrupt permafrost degradation. While their inception has been examined in several studies, the processes of their stabilization remain poorly documented. For this study, we investigated two TEGs in the Canadian High Arctic. We found that, while the formation of a TEG leaves permanent geomorphological scars in landscapes, in the long term, permafrost can recover to conditions similar to those pre-dating the initial disturbance.
Madeleine-Zoé Corbeil-Robitaille, Éliane Duchesne, Daniel Fortier, Christophe Kinnard, and Joël Bêty
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In the Arctic tundra, climate change is transforming the landscape, and this may impact wildlife. We focus on three nesting bird species and the islets they select as refuges from their main predator, the Arctic fox. A geomorphological process, ice-wedge polygon degradation, was found to play a key role in creating these refuges. This process is likely to affect predator–prey dynamics in the Arctic tundra, highlighting the connections between nature's physical and ecological systems.
Eliot Sicaud, Daniel Fortier, Jean-Pierre Dedieu, and Jan Franssen
Hydrol. Earth Syst. Sci., 28, 65–86, https://doi.org/10.5194/hess-28-65-2024, https://doi.org/10.5194/hess-28-65-2024, 2024
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For vast northern watersheds, hydrological data are often sparse and incomplete. Our study used remote sensing and clustering to produce classifications of the George River watershed (GRW). Results show two types of subwatersheds with different hydrological behaviors. The GRW experienced a homogenization of subwatershed types likely due to an increase in vegetation productivity, which could explain the measured decline of 1 % (~0.16 km3 y−1) in the George River’s discharge since the mid-1970s.
Flora Mazoyer, Isabelle Laurion, and Milla Rautio
Biogeosciences, 19, 3959–3977, https://doi.org/10.5194/bg-19-3959-2022, https://doi.org/10.5194/bg-19-3959-2022, 2022
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Dissolved organic matter collected at the end of winter from a peatland thermokarst lake was highly transformed and degraded by sunlight, leading to bacterial stimulation and CO2 production, but a fraction was also potentially lost by photoflocculation. Over 18 days, 18 % of the incubated dissolved organic matter was lost under sunlight, while dark bacterial degradation was negligible. Sunlight could have a marked effect on carbon cycling in organic-rich thermokarst lakes after ice-off.
Jeffrey M. McKenzie, Barret L. Kurylyk, Michelle A. Walvoord, Victor F. Bense, Daniel Fortier, Christopher Spence, and Christophe Grenier
The Cryosphere, 15, 479–484, https://doi.org/10.5194/tc-15-479-2021, https://doi.org/10.5194/tc-15-479-2021, 2021
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Groundwater is an underappreciated catalyst of environmental change in a warming Arctic. We provide evidence of how changing groundwater systems underpin surface changes in the north, and we argue for research and inclusion of cryohydrogeology, the study of groundwater in cold regions.
Frédéric Bouchard, Daniel Fortier, Michel Paquette, Vincent Boucher, Reinhard Pienitz, and Isabelle Laurion
The Cryosphere, 14, 2607–2627, https://doi.org/10.5194/tc-14-2607-2020, https://doi.org/10.5194/tc-14-2607-2020, 2020
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We combine lake mapping, landscape observations and sediment core analyses to document the evolution of a thermokarst (thaw) lake in the Canadian Arctic over the last millennia. We conclude that temperature is not the only driver of thermokarst development, as the lake likely started to form during a cooler period around 2000 years ago. The lake is now located in frozen layers with an organic carbon content that is an order of magnitude higher than the usually reported values across the Arctic.
Stephanie Coulombe, Daniel Fortier, Denis Lacelle, Mikhail Kanevskiy, and Yuri Shur
The Cryosphere, 13, 97–111, https://doi.org/10.5194/tc-13-97-2019, https://doi.org/10.5194/tc-13-97-2019, 2019
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This study provides a detailed description of relict glacier ice preserved in the permafrost of Bylot Island (Nunavut). We demonstrate that the 18O composition (-34.0 0.4 ‰) of the ice is consistent with the late Pleistocene age ice in the Barnes Ice Cap. As most of the glaciated Arctic landscapes are still strongly determined by their glacial legacy, the melting of these large ice bodies could have significant impacts on permafrost geosystem landscape dynamics and ecosystems.
Gautier Davesne, Daniel Fortier, Florent Domine, and James T. Gray
The Cryosphere, 11, 1351–1370, https://doi.org/10.5194/tc-11-1351-2017, https://doi.org/10.5194/tc-11-1351-2017, 2017
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This study presents data from Mont Jacques-Cartier, the highest summit in the Appalachians of south-eastern Canada, to demonstrate that the occurrence of contemporary permafrost body is associated with a very thin and wind-packed winter snow cover which brings local azonal topo-climatic conditions on the dome-shaped summit. This study is an important preliminary step in modelling the regional spatial distribution of permafrost on the highest summits in eastern North America.
Sina Muster, Kurt Roth, Moritz Langer, Stephan Lange, Fabio Cresto Aleina, Annett Bartsch, Anne Morgenstern, Guido Grosse, Benjamin Jones, A. Britta K. Sannel, Ylva Sjöberg, Frank Günther, Christian Andresen, Alexandra Veremeeva, Prajna R. Lindgren, Frédéric Bouchard, Mark J. Lara, Daniel Fortier, Simon Charbonneau, Tarmo A. Virtanen, Gustaf Hugelius, Juri Palmtag, Matthias B. Siewert, William J. Riley, Charles D. Koven, and Julia Boike
Earth Syst. Sci. Data, 9, 317–348, https://doi.org/10.5194/essd-9-317-2017, https://doi.org/10.5194/essd-9-317-2017, 2017
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Waterbodies are abundant in Arctic permafrost lowlands. Most waterbodies are ponds with a surface area smaller than 100 x 100 m. The Permafrost Region Pond and Lake Database (PeRL) for the first time maps ponds as small as 10 x 10 m. PeRL maps can be used to document changes both by comparing them to historical and future imagery. The distribution of waterbodies in the Arctic is important to know in order to manage resources in the Arctic and to improve climate predictions in the Arctic.
Etienne Godin, Daniel Fortier, and Esther Lévesque
Biogeosciences, 13, 1439–1452, https://doi.org/10.5194/bg-13-1439-2016, https://doi.org/10.5194/bg-13-1439-2016, 2016
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Bowl-shaped ice-wedge polygons in permafrost regions can retain snowmelt water and moisture in their center. On Bylot Island (NU, CA), a rapidly developing thermal erosion gully eroded the polygons' ridges, impacting the polygon centers' ground moisture and temperature, plant cover and species. An intact polygon was homogeneous in its center for the aforementioned elements, whereas eroded polygons had a varying response following the breach, with heterogeneity as their new equilibrium state.
F. Bouchard, I. Laurion, V. Prėskienis, D. Fortier, X. Xu, and M. J. Whiticar
Biogeosciences, 12, 7279–7298, https://doi.org/10.5194/bg-12-7279-2015, https://doi.org/10.5194/bg-12-7279-2015, 2015
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We report on greenhouse gas (GHG) emissions in permafrost aquatic systems of the Eastern Canadian Arctic. We found strikingly different ages, sources and emission rates depending on aquatic system types. Small and shallow ponds generally emitted young (modern to a few centuries old) GHG, whereas larger and deeper lakes released much older GHG, in particular millennium-old CH4 from lake central areas. To our knowledge, this work is the first to report on GHG age from Canadian Arctic lakes.
Related subject area
Discipline: Frozen ground | Subject: Geomorphology
The cryostratigraphy of thermo-erosion gullies in the Canadian High Arctic demonstrates the resilience of permafrost
A climate-driven, altitudinal transition in rock glacier dynamics detected through integration of geomorphological mapping and synthetic aperture radar interferometry (InSAR)-based kinematics
Discriminating viscous-creep features (rock glaciers) in mountain permafrost from debris-covered glaciers – a commented test at the Gruben and Yerba Loca sites, Swiss Alps and Chilean Andes
Review article: Retrogressive thaw slump theory and terminology
Assessment of rock glaciers and their water storage in Guokalariju, Tibetan Plateau
Identifying mountain permafrost degradation by repeating historical electrical resistivity tomography (ERT) measurements
Permafrost degradation at two monitored palsa mires in north-west Finland
Recent degradation of interior Alaska permafrost mapped with ground surveys, geophysics, deep drilling, and repeat airborne lidar
Thaw-driven mass wasting couples slopes with downstream systems, and effects propagate through Arctic drainage networks
Ice content and interannual water storage changes of an active rock glacier in the dry Andes of Argentina
Insights into a remote cryosphere: a multi-method approach to assess permafrost occurrence at the Qugaqie basin, western Nyainqêntanglha Range, Tibetan Plateau
Permafrost distribution and conditions at the headwalls of two receding glaciers (Schladming and Hallstatt glaciers) in the Dachstein Massif, Northern Calcareous Alps, Austria
Rock glacier characteristics serve as an indirect record of multiple alpine glacier advances in Taylor Valley, Antarctica
Evaluating the destabilization susceptibility of active rock glaciers in the French Alps
Samuel Gagnon, Daniel Fortier, Étienne Godin, and Audrey Veillette
The Cryosphere, 18, 4743–4763, https://doi.org/10.5194/tc-18-4743-2024, https://doi.org/10.5194/tc-18-4743-2024, 2024
Short summary
Short summary
Thermo-erosion gullies (TEGs) are one of the most common forms of abrupt permafrost degradation. While their inception has been examined in several studies, the processes of their stabilization remain poorly documented. For this study, we investigated two TEGs in the Canadian High Arctic. We found that, while the formation of a TEG leaves permanent geomorphological scars in landscapes, in the long term, permafrost can recover to conditions similar to those pre-dating the initial disturbance.
Aldo Bertone, Nina Jones, Volkmar Mair, Riccardo Scotti, Tazio Strozzi, and Francesco Brardinoni
The Cryosphere, 18, 2335–2356, https://doi.org/10.5194/tc-18-2335-2024, https://doi.org/10.5194/tc-18-2335-2024, 2024
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Traditional inventories display high uncertainty in discriminating between intact (permafrost-bearing) and relict (devoid) rock glaciers (RGs). Integration of InSAR-based kinematics in South Tyrol affords uncertainty reduction and depicts a broad elevation belt of relict–intact coexistence. RG velocity and moving area (MA) cover increase linearly with elevation up to an inflection at 2600–2800 m a.s.l., which we regard as a signature of sporadic-to-discontinuous permafrost transition.
Wilfried Haeberli, Lukas U. Arenson, Julie Wee, Christian Hauck, and Nico Mölg
The Cryosphere, 18, 1669–1683, https://doi.org/10.5194/tc-18-1669-2024, https://doi.org/10.5194/tc-18-1669-2024, 2024
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Rock glaciers in ice-rich permafrost can be discriminated from debris-covered glaciers. The key physical phenomenon relates to the tight mechanical coupling between the moving frozen body at depth and the surface layer of debris in the case of rock glaciers, as opposed to the virtually inexistent coupling in the case of surface ice with a debris cover. Contact zones of surface ice with subsurface ice in permafrost constitute diffuse landforms beyond either–or-type landform classification.
Nina Nesterova, Marina Leibman, Alexander Kizyakov, Hugues Lantuit, Ilya Tarasevich, Ingmar Nitze, Alexandra Veremeeva, and Guido Grosse
EGUsphere, https://doi.org/10.5194/egusphere-2023-2914, https://doi.org/10.5194/egusphere-2023-2914, 2024
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Retrogressive thaw slumps (RTSs) are widespread in the Arctic permafrost landforms. RTSs present a big interest for researchers because of their expansion due to climate change. There are currently different scientific schools and terminology used in the literature on this topic. We have critically reviewed existing concepts and terminology and provided clarifications to present a useful base for experts in the field and ease the introduction to the topic for scientists who are new to it.
Mengzhen Li, Yanmin Yang, Zhaoyu Peng, and Gengnian Liu
The Cryosphere, 18, 1–16, https://doi.org/10.5194/tc-18-1-2024, https://doi.org/10.5194/tc-18-1-2024, 2024
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We map a detailed rock glaciers inventory to further explore the regional distribution controlling factors, water storage, and permafrost probability distribution in Guokalariju. Results show that (i) the distribution of rock glaciers is controlled by the complex composition of topo-climate factors, increases in precipitation are conducive to rock glaciers forming at lower altitudes, and (ii) 1.32–3.60 km3 of water is stored in the rock glaciers, or ~ 59 % of the water glaciers presently store.
Johannes Buckel, Jan Mudler, Rainer Gardeweg, Christian Hauck, Christin Hilbich, Regula Frauenfelder, Christof Kneisel, Sebastian Buchelt, Jan Henrik Blöthe, Andreas Hördt, and Matthias Bücker
The Cryosphere, 17, 2919–2940, https://doi.org/10.5194/tc-17-2919-2023, https://doi.org/10.5194/tc-17-2919-2023, 2023
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This study reveals permafrost degradation by repeating old geophysical measurements at three Alpine sites. The compared data indicate that ice-poor permafrost is highly affected by temperature warming. The melting of ice-rich permafrost could not be identified. However, complex geomorphic processes are responsible for this rather than external temperature change. We suspect permafrost degradation here as well. In addition, we introduce a new current injection method for data acquisition.
Mariana Verdonen, Alexander Störmer, Eliisa Lotsari, Pasi Korpelainen, Benjamin Burkhard, Alfred Colpaert, and Timo Kumpula
The Cryosphere, 17, 1803–1819, https://doi.org/10.5194/tc-17-1803-2023, https://doi.org/10.5194/tc-17-1803-2023, 2023
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The study revealed a stable and even decreasing thickness of thaw depth in peat mounds with perennially frozen cores, despite overall rapid permafrost degradation within 14 years. This means that measuring the thickness of the thawed layer – a commonly used method – is alone insufficient to assess the permafrost conditions in subarctic peatlands. The study showed that climate change is the main driver of these permafrost features’ decay, but its effect depends on the peatland’s local conditions.
Thomas A. Douglas, Christopher A. Hiemstra, John E. Anderson, Robyn A. Barbato, Kevin L. Bjella, Elias J. Deeb, Arthur B. Gelvin, Patricia E. Nelsen, Stephen D. Newman, Stephanie P. Saari, and Anna M. Wagner
The Cryosphere, 15, 3555–3575, https://doi.org/10.5194/tc-15-3555-2021, https://doi.org/10.5194/tc-15-3555-2021, 2021
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Permafrost is actively degrading across high latitudes due to climate warming. We combined thousands of end-of-summer active layer measurements, permafrost temperatures, geophysical surveys, deep borehole drilling, and repeat airborne lidar to quantify permafrost warming and thawing at sites across central Alaska. We calculate the mass of permafrost soil carbon potentially exposed to thaw over the past 7 years (0.44 Pg) is similar to the yearly carbon dioxide emissions of Australia.
Steven V. Kokelj, Justin Kokoszka, Jurjen van der Sluijs, Ashley C. A. Rudy, Jon Tunnicliffe, Sarah Shakil, Suzanne E. Tank, and Scott Zolkos
The Cryosphere, 15, 3059–3081, https://doi.org/10.5194/tc-15-3059-2021, https://doi.org/10.5194/tc-15-3059-2021, 2021
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Climate-driven landslides are transforming glacially conditioned permafrost terrain, coupling slopes with aquatic systems, and triggering a cascade of downstream effects. Nonlinear intensification of thawing slopes is primarily affecting headwater systems where slope sediment yields overwhelm stream transport capacity. The propagation of effects across watershed scales indicates that western Arctic Canada will be an interconnected hotspot of thaw-driven change through the coming millennia.
Christian Halla, Jan Henrik Blöthe, Carla Tapia Baldis, Dario Trombotto Liaudat, Christin Hilbich, Christian Hauck, and Lothar Schrott
The Cryosphere, 15, 1187–1213, https://doi.org/10.5194/tc-15-1187-2021, https://doi.org/10.5194/tc-15-1187-2021, 2021
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In the semi-arid to arid Andes of Argentina, rock glaciers contain invisible and unknown amounts of ground ice that could become more important in future for the water availability during the dry season. The study shows that the investigated rock glacier represents an important long-term ice reservoir in the dry mountain catchment and that interannual changes of ground ice can store and release significant amounts of annual precipitation.
Johannes Buckel, Eike Reinosch, Andreas Hördt, Fan Zhang, Björn Riedel, Markus Gerke, Antje Schwalb, and Roland Mäusbacher
The Cryosphere, 15, 149–168, https://doi.org/10.5194/tc-15-149-2021, https://doi.org/10.5194/tc-15-149-2021, 2021
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This study presents insights into the remote cryosphere of a mountain range at the Tibetan Plateau. Small-scaled studies and field data about permafrost occurrence are very scarce. A multi-method approach (geomorphological mapping, geophysics, InSAR time series analysis) assesses the lower occurrence of permafrost the range of 5350 and 5500 m above sea level (a.s.l.) in the Qugaqie basin. The highest, multiannual creeping rates up to 150 mm/yr are observed on rock glaciers.
Matthias Rode, Oliver Sass, Andreas Kellerer-Pirklbauer, Harald Schnepfleitner, and Christoph Gitschthaler
The Cryosphere, 14, 1173–1186, https://doi.org/10.5194/tc-14-1173-2020, https://doi.org/10.5194/tc-14-1173-2020, 2020
Kelsey Winsor, Kate M. Swanger, Esther Babcock, Rachel D. Valletta, and James L. Dickson
The Cryosphere, 14, 1–16, https://doi.org/10.5194/tc-14-1-2020, https://doi.org/10.5194/tc-14-1-2020, 2020
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We studied an ice-cored rock glacier in Taylor Valley, Antarctica, coupling ground-penetrating radar analyses with stable isotope and major ion geochemistry of (a) surface ponds and (b) buried clean ice. These analyses indicate that the rock glacier ice is fed by a nearby alpine glacier, recording multiple Holocene to late Pleistocene glacial advances. We demonstrate the potential to use rock glaciers and buried ice, common throughout Antarctica, to map previous glacial extents.
Marco Marcer, Charlie Serrano, Alexander Brenning, Xavier Bodin, Jason Goetz, and Philippe Schoeneich
The Cryosphere, 13, 141–155, https://doi.org/10.5194/tc-13-141-2019, https://doi.org/10.5194/tc-13-141-2019, 2019
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This study aims to assess the occurrence of rock glacier destabilization in the French Alps, a process that causes a landslide-like behaviour of permafrost debris slopes. A significant number of the landforms in the region were found to be experiencing destabilization. Multivariate analysis suggested a link between destabilization occurrence and permafrost thaw induced by climate warming. These results call for a regional characterization of permafrost hazards in the context of climate change.
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Short summary
Buried glacier ice is widespread in Arctic regions that were once covered by glaciers and ice sheets. In this study, we investigated the influence of buried glacier ice on the formation of Arctic tundra lakes on Bylot Island, Nunavut. Our results suggest that initiation of deeper lakes was triggered by the melting of buried glacier ice. Given future climate projections, the melting of glacier ice permafrost could create new aquatic ecosystems and strongly modify existing ones.
Buried glacier ice is widespread in Arctic regions that were once covered by glaciers and ice...
