Articles | Volume 25, issue 4
https://doi.org/10.5194/hess-25-1849-2021
© 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/hess-25-1849-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| Highlight paper
| 
09 Apr 2021
Research article | Highlight paper |
| 09 Apr 2021
| 09 Apr 2021
Summary and synthesis of Changing Cold Regions Network (CCRN) research in the interior of western Canada – Part 2: Future change in cryosphere, vegetation, and hydrology
Centre for Hydrology, University of Saskatchewan, Saskatoon,
Saskatchewan, Canada
Global Institute for Water Security, University of Saskatchewan,
Saskatoon, Saskatchewan, Canada
Howard S. Wheater
Centre for Hydrology, University of Saskatchewan, Saskatoon,
Saskatchewan, Canada
Global Institute for Water Security, University of Saskatchewan,
Saskatoon, Saskatchewan, Canada
Department of Civil and Environmental Engineering, Imperial College
London, London, United Kingdom
John W. Pomeroy
Centre for Hydrology, University of Saskatchewan, Saskatoon,
Saskatchewan, Canada
Global Institute for Water Security, University of Saskatchewan,
Saskatoon, Saskatchewan, Canada
Alan G. Barr
Global Institute for Water Security, University of Saskatchewan,
Saskatoon, Saskatchewan, Canada
Climate Research Division, Environment and Climate Change Canada,
Saskatoon, Saskatchewan, Canada
Jennifer L. Baltzer
Biology Department, Wilfrid Laurier University, Waterloo, Ontario,
Canada
Jill F. Johnstone
Department of Biology, University of Saskatchewan, Saskatoon,
Saskatchewan, Canada
Institute of Arctic Biology, University of Alaska Fairbanks,
Fairbanks, Alaska, United States
Merritt R. Turetsky
Department of Integrative Biology, University of Guelph, Guelph,
Ontario, Canada
Department of Ecology and Evolutionary Biology, Institute of Arctic
and Alpine Research, University of Colorado Boulder, Boulder, Colorado, United States
Ronald E. Stewart
Department of Environment and Geography, University of Manitoba,
Winnipeg, Manitoba, Canada
Masaki Hayashi
Department of Geoscience, University of Calgary, Calgary, Alberta,
Canada
Garth van der Kamp
Global Institute for Water Security, University of Saskatchewan,
Saskatoon, Saskatchewan, Canada
Shawn Marshall
Department of Geography, University of Calgary, Calgary, Alberta,
Canada
Environment and Climate Change Canada, Gatineau, Quebec, Canada
Elizabeth Campbell
Natural Resources Canada, Canadian Forest Service, Pacific Forestry Centre, Victoria, British Columbia, Canada
Philip Marsh
Cold Regions Research Centre, Wilfrid Laurier University, Waterloo, Ontario, Canada
Sean K. Carey
School of Geography and Earth Sciences, McMaster University,
Hamilton, Ontario, Canada
William L. Quinton
Cold Regions Research Centre, Wilfrid Laurier University, Waterloo, Ontario, Canada
Yanping Li
Global Institute for Water Security, University of Saskatchewan,
Saskatoon, Saskatchewan, Canada
Saman Razavi
Global Institute for Water Security, University of Saskatchewan,
Saskatoon, Saskatchewan, Canada
Aaron Berg
Department of Geography, Environment and Geomatics, University of
Guelph, Guelph, Ontario, Canada
Jeffrey J. McDonnell
Global Institute for Water Security, University of Saskatchewan,
Saskatoon, Saskatchewan, Canada
School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
Christopher Spence
National Hydrology Research Centre, Environment and Climate Change
Canada, Saskatoon, Saskatchewan, Canada
Warren D. Helgason
Chemical and Biological Engineering, University of Saskatchewan,
Saskatoon, Saskatchewan, Canada
Andrew M. Ireson
Global Institute for Water Security, University of Saskatchewan,
Saskatoon, Saskatchewan, Canada
T. Andrew Black
Faculty of Land and Food Systems, University of British Columbia,
Vancouver, British Columbia, Canada
Mohamed Elshamy
Centre for Hydrology, University of Saskatchewan, Saskatoon,
Saskatchewan, Canada
Global Institute for Water Security, University of Saskatchewan,
Saskatoon, Saskatchewan, Canada
Fuad Yassin
Centre for Hydrology, University of Saskatchewan, Saskatoon,
Saskatchewan, Canada
Global Institute for Water Security, University of Saskatchewan,
Saskatoon, Saskatchewan, Canada
Bruce Davison
National Hydrology Research Centre, Environment and Climate Change
Canada, Saskatoon, Saskatchewan, Canada
Allan Howard
Agriculture and Agri-Food Canada, Regina, Saskatchewan, Canada
Julie M. Thériault
Centre ESCER, Department of Earth and Atmospheric Sciences,
Université du Québec à Montréal, Montréal, Quebec, Canada
Kevin Shook
Centre for Hydrology, University of Saskatchewan, Saskatoon,
Saskatchewan, Canada
Michael N. Demuth
Centre for Hydrology, University of Saskatchewan, Saskatoon,
Saskatchewan, Canada
Cryosphere Geoscience Section, Geological Survey of Canada, Ottawa, Ontario, Canada
Northern and High Country Weather Impacts Laboratory, University of Victoria, Victoria, British Columbia, Canada
Alain Pietroniro
National Hydrology Research Centre, Environment and Climate Change
Canada, Saskatoon, Saskatchewan, Canada
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This preprint is open for discussion and under review for Biogeosciences (BG).
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EGUsphere, https://doi.org/10.5194/egusphere-2026-2809, https://doi.org/10.5194/egusphere-2026-2809, 2026
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EGUsphere, https://doi.org/10.5194/egusphere-2026-3419, https://doi.org/10.5194/egusphere-2026-3419, 2026
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Xiuqiang Liu, Xi Chen, Zhicai Zhang, Weihan Liu, Tao Peng, and Jeffrey J. McDonnell
Hydrol. Earth Syst. Sci., 30, 3061–3094, https://doi.org/10.5194/hess-30-3061-2026, https://doi.org/10.5194/hess-30-3061-2026, 2026
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Hailey Webb, Ethan Pierce, Benjamin W. Abbott, William B. Bowden, Yaping Chen, Yating Chen, Thomas A. Douglas, Joel F. Eklof, Eugénie S. Euskirchen, Moritz Langer, Isla H. Myers-Smith, Irina Overeem, Jens Strauss, Katey Walter Anthony, Kang Wang, Matthew A. Whitley, and Merritt R. Turetsky
Earth Syst. Sci. Data, 18, 3147–3164, https://doi.org/10.5194/essd-18-3147-2026, https://doi.org/10.5194/essd-18-3147-2026, 2026
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We created a database of 19,540 thawing permafrost sites across Alaska, including both abrupt and non-abrupt thaw features and explored relationships with elevation, slope, and incoming solar radiation. We use the database to show that existing ground ice maps are too coarse to predict abrupt thaw risk. This database can enhance predictions of future thaw and guide planning and adaptation strategies.
Hesam Salmabadi, Renato Pardo Lara, Aaron Berg, Alex Mavrovic, Chelene Hanes, Benoit Montpetit, and Alexandre Roy
The Cryosphere, 20, 1635–1654, https://doi.org/10.5194/tc-20-1635-2026, https://doi.org/10.5194/tc-20-1635-2026, 2026
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Current satellite monitoring often oversimplifies soil freezing by assuming it happens exactly at 0°C. We analyzed ground data across Canada and found that soil often stays in a partially frozen state for months, even when air temperatures are well below freezing, revealing a major gap in how we track seasonally frozen ground.
Fei Huo, Yanping Li, and Zhenhua Li
Earth Syst. Dynam., 17, 291–302, https://doi.org/10.5194/esd-17-291-2026, https://doi.org/10.5194/esd-17-291-2026, 2026
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In this study, we find that global freshwater storage on land (excluding Greenland and Antarctica) will likely decrease much more than raw models suggest – about 83 millimeters less water by 2100. This means that earlier studies may have overestimated future water availability. When we correct the models using observations, the results consistently show significant declines in freshwater, which could worsen water stress worldwide if demand continues to grow.
Olivia Meier-Legault, Nicholas Brown, Larry Adjun, Michel Allard, Alejandro Alvarez, Maude Auclair, Alex Bevington, Samuel Bilodeau, William Cable, Olivia Carpino, Ariane Castagner, Lin Chen, Alexandre Chiasson, Ryan Connon, Stephanie Coulombe, Jeffrey Crompton, Derek Cronmiller, Gautier Davesne, Mason Dominico, Marc-André Ducharme, Timothy Ensom, Louise Farquharson, Vanessa Foord, Daniel Fortier, Philippe Fortier, Duane Froese, Samuel Gagnon, Francis Gauthier, Marten Geertsema, Etienne Godin, Galina Jonat, Steven V. Kokelj, Michelle Landry, Antoni Lewkowicz, Panya Lipovsky, Emmanual L’Hérault, Hannah Macdonell, Lancelot Massé, Dmitry Nicolsky, Moya Painter, Leesee Papatsie, Victor Pozsgay, William Quinton, Vladimir Romanovsky, Ashley C.A. Rudy, Denis Sarrazin, Emilie Stewart-Jones, Donald Walker, Thomas Wright, Joseph Young, and Stephan Gruber
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2026-96, https://doi.org/10.5194/essd-2026-96, 2026
Revised manuscript accepted for ESSD
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Ground temperature data is vital for permafrost and climate research yet data is often fragmented. We created a standardized collection of ground temperatures from over 900 sites across Canada. From 42 published and unpublished sources, we manually verified, cleaned and standardized data with a new software tool. This dataset supports permafrost research on a nationwide scale and can help improve models by acting as a reliable benchmark.
Georgina J. Woolley, Nick Rutter, Leanne Wake, Vincent Vionnet, Chris Derksen, Julien Meloche, Benoit Montpetit, Nicolas R. Leroux, Richard Essery, Gabriel Hould Gosselin, and Philip Marsh
The Cryosphere, 20, 1315–1338, https://doi.org/10.5194/tc-20-1315-2026, https://doi.org/10.5194/tc-20-1315-2026, 2026
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The impact of uncertainties in the simulation of density and specific surface area (SSA) by the snow model Crocus (embedded in the Soil, Vegetation and Snow v2 land surface model) on the simulation of snow backscatter (13.5 GHz) using the Snow Microwave Radiative Transfer model were quantified. The simulation of SSA was found to be a key model uncertainty. Underestimated SSA values lead to high errors in the simulation of backscatter, reduced by implementing a minimum SSA value (8.7 m2 kg−1).
Xiao Ma, Yanping Li, Fei Huo, and Zhenhua Li
EGUsphere, https://doi.org/10.5194/egusphere-2026-360, https://doi.org/10.5194/egusphere-2026-360, 2026
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Low-level jets (LLJs) are narrow bands of strong winds near the surface that affect climate and extreme events. Using very high-resolution climate simulations, we studied how LLJs over North America may change in a warmer future. We found that their responses are not uniform. Some jets are strengthened in spring but weaken in summer. The shifts are linked to changes in temperature patterns and near-surface air structure, with important implications for regional climate and extreme weather.
Joseph Durat, Hadleigh David Thompson, Julie Mireille Thériault, and Philip Marsh
EGUsphere, https://doi.org/10.5194/egusphere-2025-5195, https://doi.org/10.5194/egusphere-2025-5195, 2026
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Arctic snowfall measurements are challenging as light precipitation often goes undetected. Using measurements from a portable upward-pointing radar near Inuvik, Northwest Territories, our team captured low-rate snowfall that standard instruments usually miss. Including these data increased the winter snowfall amount by 24 %, confirming that current methods underestimate the amount of snow that falls each winter and highlighting the value of improved measurements techniques.
Gabriel Hould Gosselin, Nick Rutter, Paul Mann, Philip Marsh, and Oliver Sonnentag
EGUsphere, https://doi.org/10.5194/egusphere-2025-5637, https://doi.org/10.5194/egusphere-2025-5637, 2025
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We studied how Arctic tundra soils exchange carbon dioxide and methane with the atmosphere during winter in the western Canadian Arctic. Using gas concentration profiles through the snow, we quantified greenhouse gas fluxes and their spatial variability across vegetation and terrain types. Carbon dioxide emissions increased with deeper snow and warmer soils, while some areas absorbed methane. These findings provide key data to improve upscaling of winter carbon fluxes across Arctic landscapes.
Wouter J. M. Knoben, Cyril Thébault, Kasra Keshavarz, Laura Torres-Rojas, Nathaniel W. Chaney, Alain Pietroniro, and Martyn P. Clark
Hydrol. Earth Syst. Sci., 29, 5791–5833, https://doi.org/10.5194/hess-29-5791-2025, https://doi.org/10.5194/hess-29-5791-2025, 2025
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Many existing datasets for hydrologic analysis tend to treat catchments as single spatially homogeneous units focusing on daily data and typically do not support more complex models. This paper introduces a dataset that goes beyond this set-up by (1) providing data at a higher spatial and temporal resolution, (2) specifically considering the data requirements of all common hydrologic model types, and (3) using statistical summaries of the data aimed at quantifying spatial and temporal heterogeneity.
Renato Pardo Lara, Andreas Colliander, Erica Tetlock, Jarret Powers, Jaison Thomas Ambadan, and Aaron Berg
EGUsphere, https://doi.org/10.5194/egusphere-2025-3630, https://doi.org/10.5194/egusphere-2025-3630, 2025
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Frozen ground affects ecosystems, infrastructure, and farming, yet detecting it worldwide remains a challenge. To improve soil freeze/thaw detection from space, we adapted a laboratory tool called the soil freezing curve for use with NASA’s Soil Moisture Active Passive (SMAP) satellite and temperature records. This new “surface freezing curve” method can identify thresholds tied to moisture phase changes, improving the accuracy and stability of freeze/thaw monitoring in agricultural regions.
Alamgir Hossan, Andreas Colliander, Baptiste Vandecrux, Nicole-Jeanne Schlegel, Joel Harper, Shawn Marshall, and Julie Z. Miller
The Cryosphere, 19, 4237–4258, https://doi.org/10.5194/tc-19-4237-2025, https://doi.org/10.5194/tc-19-4237-2025, 2025
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We used L-band observations from the Soil Moisture Active Passive (SMAP) mission to quantify the surface and subsurface liquid water amounts (LWAs) in the percolation zone of the Greenland ice sheet. The algorithm is described, and the validation results are provided. The results demonstrate the potential for creating an LWA data product across the Greenland ice sheet (GrIS), which will advance our understanding of ice sheet physical processes for better projection of Greenland’s contribution to global sea level rise.
Alexandre Lhosmot, Gabriel Hould Gosselin, Manuel Helbig, Julien Fouché, Youngryel Ryu, Matteo Detto, Ryan Connon, William Quinton, Tim Moore, and Oliver Sonnentag
Hydrol. Earth Syst. Sci., 29, 4871–4892, https://doi.org/10.5194/hess-29-4871-2025, https://doi.org/10.5194/hess-29-4871-2025, 2025
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Thawing permafrost changes how water is stored and moves across landscapes. We measured water inputs and outputs in a basin with thawing peatland complexes and three sub-basins. In addition to yearly changes in precipitation and evapotranspiration, we found that hydrological responses are shaped by thaw-driven landscape connectivity. These findings highlight the need for long-term monitoring of ecosystem service shifts.
Gerardo Zegers, Masaki Hayashi, and Rodrigo Pérez-Illanes
The Cryosphere, 19, 4091–4112, https://doi.org/10.5194/tc-19-4091-2025, https://doi.org/10.5194/tc-19-4091-2025, 2025
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This research showed that airflow within sediment accumulations promotes cooling and sustains mountain permafrost. By enhancing a numerical model, we showed that natural air movement, driven by temperature differences between sediments and external air, allows permafrost to survive. Our work aids in predicting where and how permafrost exists, which is essential for understanding its role in mountain water systems and its response to climate change.
Anna C. Talucci, Michael M. Loranty, Jean E. Holloway, Brendan M. Rogers, Heather D. Alexander, Natalie Baillargeon, Jennifer L. Baltzer, Logan T. Berner, Amy Breen, Leya Brodt, Brian Buma, Jacqueline Dean, Clement J. F. Delcourt, Lucas R. Diaz, Catherine M. Dieleman, Thomas A. Douglas, Gerald V. Frost, Benjamin V. Gaglioti, Rebecca E. Hewitt, Teresa Hollingsworth, M. Torre Jorgenson, Mark J. Lara, Rachel A. Loehman, Michelle C. Mack, Kristen L. Manies, Christina Minions, Susan M. Natali, Jonathan A. O'Donnell, David Olefeldt, Alison K. Paulson, Adrian V. Rocha, Lisa B. Saperstein, Tatiana A. Shestakova, Seeta Sistla, Oleg Sizov, Andrey Soromotin, Merritt R. Turetsky, Sander Veraverbeke, and Michelle A. Walvoord
Earth Syst. Sci. Data, 17, 2887–2909, https://doi.org/10.5194/essd-17-2887-2025, https://doi.org/10.5194/essd-17-2887-2025, 2025
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Wildfires have the potential to accelerate permafrost thaw and the associated feedbacks to climate change. We assembled a dataset of permafrost thaw depth measurements from burned and unburned sites contributed by researchers from across the northern high-latitude region. We estimated maximum thaw depth for each measurement, which addresses a key challenge: the ability to assess impacts of wildfire on maximum thaw depth when measurement timing varies.
Alan Barr, T. Andrew Black, Warren Helgason, Andrew Ireson, Bruce Johnson, J. Harry McCaughey, Zoran Nesic, Charmaine Hrynkiw, Amber Ross, and Newell Hedstrom
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2024-492, https://doi.org/10.5194/essd-2024-492, 2025
Revised manuscript accepted for ESSD
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The Boreal Ecosystem Research and Monitoring Sites comprise three forest and one wetland flux towers near the southern edge of the boreal forest in western Canada. The data, spanning 1997 to 2023, have been used to: characterize the exchanges of carbon, water and energy between boreal ecosystems and the atmosphere; improve climate, hydrologic, and ecosystem carbon-cycle models, and refine remote-sensing methods.
Arsh Grewal, Erin M. Nicholls, and Sean K. Carey
Hydrol. Earth Syst. Sci., 29, 2467–2483, https://doi.org/10.5194/hess-29-2467-2025, https://doi.org/10.5194/hess-29-2467-2025, 2025
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Stream chemistry in permafrost watersheds is highly seasonal due to ground thaw and declining streamflow after spring melt, reducing hydrologic connectivity with organic-rich flow paths in fall. We quantified the magnitude of stream chemistry seasonality (driven by processes other than seasonal streamflow) across 10 watersheds. Watersheds with steeper slopes saw a more rapid decline in DOC (dissolved organic carbon) concentrations, while greater permafrost extent led to a greater relative increase in ion concentrations.
Wouter J. M. Knoben, Ashwin Raman, Gaby J. Gründemann, Mukesh Kumar, Alain Pietroniro, Chaopeng Shen, Yalan Song, Cyril Thébault, Katie van Werkhoven, Andrew W. Wood, and Martyn P. Clark
Hydrol. Earth Syst. Sci., 29, 2361–2375, https://doi.org/10.5194/hess-29-2361-2025, https://doi.org/10.5194/hess-29-2361-2025, 2025
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Hydrologic models are needed to provide simulations of water availability, floods, and droughts. The accuracy of these simulations is often quantified with so-called performance scores. A common thought is that different models are more or less applicable to different landscapes, depending on how the model works. We show that performance scores are not helpful in distinguishing between different models and thus cannot easily be used to select an appropriate model for a specific place.
Chen Yang, Zitong Jia, Wenjie Xu, Zhongwang Wei, Xiaolang Zhang, Yiguang Zou, Jeffrey McDonnell, Laura Condon, Yongjiu Dai, and Reed Maxwell
Hydrol. Earth Syst. Sci., 29, 2201–2218, https://doi.org/10.5194/hess-29-2201-2025, https://doi.org/10.5194/hess-29-2201-2025, 2025
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We developed the first high-resolution, integrated surface water–groundwater hydrologic model of the entirety of continental China using ParFlow. The model shows good performance in terms of streamflow and water table depth when compared to global data products and observations. It is essential for water resources management and decision-making in China within a consistent framework in the changing world. It also has significant implications for similar modeling in other places in the world.
Eunji Byun, Fereidoun Rezanezhad, Stephanie Slowinski, Christina Lam, Saraswati Bhusal, Stephanie Wright, William L. Quinton, Kara L. Webster, and Philippe Van Cappellen
SOIL, 11, 309–321, https://doi.org/10.5194/soil-11-309-2025, https://doi.org/10.5194/soil-11-309-2025, 2025
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To investigate how added nutrient nitrogen (N) and phosphorus (P) affect subarctic peatlands, we sampled peat soils from bog and fen type peatlands in the Northwest Territories, Canada, and measured CO2 and CH4 production rates by means of laboratory incubations. Our short-term experiments show that changes in nutrient concentrations in soil water can significantly affect microbial carbon cycling, suggesting the necessity of additional considerations of wildfire and permafrost thaw impacts on peatland carbon storage.
Alexis Bédard-Therrien, François Anctil, Julie M. Thériault, Olivier Chalifour, Fanny Payette, Alexandre Vidal, and Daniel F. Nadeau
Hydrol. Earth Syst. Sci., 29, 1135–1158, https://doi.org/10.5194/hess-29-1135-2025, https://doi.org/10.5194/hess-29-1135-2025, 2025
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Precipitation data from an automated observational network in eastern Canada showed a temperature interval where rain and snow could coexist. Random forest models were developed to classify the precipitation phase using meteorological data to evaluate operational applications. The models demonstrated significantly improved phase classification and reduced error compared to benchmark operational models. However, accurate prediction of mixed-phase precipitation remains challenging.
Andras J. Szeitz and Sean K. Carey
Hydrol. Earth Syst. Sci., 29, 1083–1101, https://doi.org/10.5194/hess-29-1083-2025, https://doi.org/10.5194/hess-29-1083-2025, 2025
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Stream temperature sensitivity in northern regions responds to many of the same environmental controls as in temperate regions, but the presence of annually frozen ground (permafrost) influences catchment hydrology and stream temperature regimes. Permafrost can have positive and negative influences on thermal regimes. The net effect of northern environmental change on stream temperature is complex and uncertain, but permafrost will likely play a role through its control on cold region hydrology.
André Bertoncini and John W. Pomeroy
Hydrol. Earth Syst. Sci., 29, 983–1000, https://doi.org/10.5194/hess-29-983-2025, https://doi.org/10.5194/hess-29-983-2025, 2025
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Rainfall and snowfall spatial estimation for hydrological purposes is often compromised in cold mountain regions due to inaccessibility, creating sparse gauge networks with few high-elevation gauges. This study developed a framework for quantifying gauge network uncertainty, considering elevation to aid in future gauge placement in mountain regions. Results show that gauge placement above 2000 m is the most cost-effective measure to decrease gauge network uncertainty in the Canadian Rockies.
Georgina J. Woolley, Nick Rutter, Leanne Wake, Vincent Vionnet, Chris Derksen, Richard Essery, Philip Marsh, Rosamond Tutton, Branden Walker, Matthieu Lafaysse, and David Pritchard
The Cryosphere, 18, 5685–5711, https://doi.org/10.5194/tc-18-5685-2024, https://doi.org/10.5194/tc-18-5685-2024, 2024
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Parameterisations of Arctic snow processes were implemented into the multi-physics ensemble version of the snow model Crocus (embedded within the Soil, Vegetation, and Snow version 2 land surface model) and evaluated at an Arctic tundra site. Optimal combinations of parameterisations that improved the simulation of density and specific surface area featured modifications that raise wind speeds to increase compaction in surface layers, prevent snowdrift, and increase viscosity in basal layers.
Kevin R. Shook, Paul H. Whitfield, Christopher Spence, and John W. Pomeroy
Hydrol. Earth Syst. Sci., 28, 5173–5192, https://doi.org/10.5194/hess-28-5173-2024, https://doi.org/10.5194/hess-28-5173-2024, 2024
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Recent studies suggest that the velocities of water running off landscapes in the Canadian Prairies may be much smaller than generally assumed. Analyses of historical flows for 23 basins in central Alberta show that many of the rivers responded more slowly and that the flows are much slower than would be estimated from equations developed elsewhere. The effects of slow flow velocities on the development of hydrological models of the region are discussed, as are the possible causes.
Xiao Ma, Yanping Li, Zhenhua Li, and Fei Huo
Atmos. Chem. Phys., 24, 12013–12030, https://doi.org/10.5194/acp-24-12013-2024, https://doi.org/10.5194/acp-24-12013-2024, 2024
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This study uses 4 km Weather Research and Forecasting simulations to investigate the features of low-level jets (LLJs) in North America. It identifies significant LLJ systems, such as the Great Plains LLJ. It also provides insight into LLJs poorly captured in coarser models, such as the northerly Quebec LLJ and the small-scale, low-level wind maxima around the Rocky Mountains. Furthermore, the study examines different physical mechanisms of forming three distinct types of LLJs.
Mathieu Lachapelle, Mélissa Cholette, and Julie M. Thériault
Atmos. Chem. Phys., 24, 11285–11304, https://doi.org/10.5194/acp-24-11285-2024, https://doi.org/10.5194/acp-24-11285-2024, 2024
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Hazardous precipitation types such as ice pellets and freezing rain are difficult to predict because they are associated with complex microphysical processes. Using Predicted Particle Properties (P3), this work shows that secondary ice production processes increase the amount of ice pellets simulated while decreasing the amount of freezing rain. Moreover, the properties of the simulated precipitation compare well with those that were measured.
Shervan Gharari, Paul H. Whitfield, Alain Pietroniro, Jim Freer, Hongli Liu, and Martyn P. Clark
Hydrol. Earth Syst. Sci., 28, 4383–4405, https://doi.org/10.5194/hess-28-4383-2024, https://doi.org/10.5194/hess-28-4383-2024, 2024
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This study provides insight into the practices that are incorporated into discharge estimation across the national Canadian hydrometric network operated by the Water Survey of Canada (WSC). The procedures used to estimate and correct discharge values are not always understood by end-users. Factors such as ice cover and sedimentation limit accurate discharge estimation. Highlighting these challenges sheds light on difficulties in discharge estimation and the associated uncertainty.
Louise Arnal, Martyn P. Clark, Alain Pietroniro, Vincent Vionnet, David R. Casson, Paul H. Whitfield, Vincent Fortin, Andrew W. Wood, Wouter J. M. Knoben, Brandi W. Newton, and Colleen Walford
Hydrol. Earth Syst. Sci., 28, 4127–4155, https://doi.org/10.5194/hess-28-4127-2024, https://doi.org/10.5194/hess-28-4127-2024, 2024
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Forecasting river flow months in advance is crucial for water sectors and society. In North America, snowmelt is a key driver of flow. This study presents a statistical workflow using snow data to forecast flow months ahead in North American snow-fed rivers. Variations in the river flow predictability across the continent are evident, raising concerns about future predictability in a changing (snow) climate. The reproducible workflow hosted on GitHub supports collaborative and open science.
Phillip Harder, Warren D. Helgason, and John W. Pomeroy
The Cryosphere, 18, 3277–3295, https://doi.org/10.5194/tc-18-3277-2024, https://doi.org/10.5194/tc-18-3277-2024, 2024
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Remote sensing the amount of water in snow (SWE) at high spatial resolutions is an unresolved challenge. In this work, we tested a drone-mounted passive gamma spectrometer to quantify SWE. We found that the gamma observations could resolve the average and spatial variability of SWE down to 22.5 m resolutions. Further, by combining drone gamma SWE and lidar snow depth we could estimate SWE at sub-metre resolutions which is a new opportunity to improve the measurement of shallow snowpacks.
Mazda Kompanizare, Diogo Costa, Merrin L. Macrae, John W. Pomeroy, and Richard M. Petrone
Hydrol. Earth Syst. Sci., 28, 2785–2807, https://doi.org/10.5194/hess-28-2785-2024, https://doi.org/10.5194/hess-28-2785-2024, 2024
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A new agricultural tile drainage module was developed in the Cold Region Hydrological Model platform. Tile flow and water levels are simulated by considering the effect of capillary fringe thickness, drainable water and seasonal regional groundwater dynamics. The model was applied to a small well-instrumented farm in southern Ontario, Canada, where there are concerns about the impacts of agricultural drainage into Lake Erie.
M. Graham Clark and Sean K. Carey
Geosci. Model Dev., 17, 4911–4922, https://doi.org/10.5194/gmd-17-4911-2024, https://doi.org/10.5194/gmd-17-4911-2024, 2024
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This paper provides validation of the Canadian Small Lakes Model (CSLM) for estimating evaporation rates from reservoirs and a refactoring of the original FORTRAN code into MATLAB and Python, which are now stored in GitHub repositories. Here we provide direct observations of the surface energy exchange obtained with an eddy covariance system to validate the CSLM. There was good agreement between observations and estimations except under specific atmospheric conditions when evaporation is low.
Charles E. Miller, Peter C. Griffith, Elizabeth Hoy, Naiara S. Pinto, Yunling Lou, Scott Hensley, Bruce D. Chapman, Jennifer Baltzer, Kazem Bakian-Dogaheh, W. Robert Bolton, Laura Bourgeau-Chavez, Richard H. Chen, Byung-Hun Choe, Leah K. Clayton, Thomas A. Douglas, Nancy French, Jean E. Holloway, Gang Hong, Lingcao Huang, Go Iwahana, Liza Jenkins, John S. Kimball, Tatiana Loboda, Michelle Mack, Philip Marsh, Roger J. Michaelides, Mahta Moghaddam, Andrew Parsekian, Kevin Schaefer, Paul R. Siqueira, Debjani Singh, Alireza Tabatabaeenejad, Merritt Turetsky, Ridha Touzi, Elizabeth Wig, Cathy J. Wilson, Paul Wilson, Stan D. Wullschleger, Yonghong Yi, Howard A. Zebker, Yu Zhang, Yuhuan Zhao, and Scott J. Goetz
Earth Syst. Sci. Data, 16, 2605–2624, https://doi.org/10.5194/essd-16-2605-2024, https://doi.org/10.5194/essd-16-2605-2024, 2024
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NASA’s Arctic Boreal Vulnerability Experiment (ABoVE) conducted airborne synthetic aperture radar (SAR) surveys of over 120 000 km2 in Alaska and northwestern Canada during 2017, 2018, 2019, and 2022. This paper summarizes those results and provides links to details on ~ 80 individual flight lines. This paper is presented as a guide to enable interested readers to fully explore the ABoVE L- and P-band SAR data.
François Roberge, Alejandro Di Luca, René Laprise, Philippe Lucas-Picher, and Julie Thériault
Geosci. Model Dev., 17, 1497–1510, https://doi.org/10.5194/gmd-17-1497-2024, https://doi.org/10.5194/gmd-17-1497-2024, 2024
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Our study addresses a challenge in dynamical downscaling using regional climate models, focusing on the lack of small-scale features near the boundaries. We introduce a method to identify this “spatial spin-up” in precipitation simulations. Results show spin-up distances up to 300 km, varying by season and driving variable. Double nesting with comprehensive variables (e.g. microphysical variables) offers advantages. Findings will help optimize simulations for better climate projections.
Victoria R. Dutch, Nick Rutter, Leanne Wake, Oliver Sonnentag, Gabriel Hould Gosselin, Melody Sandells, Chris Derksen, Branden Walker, Gesa Meyer, Richard Essery, Richard Kelly, Phillip Marsh, Julia Boike, and Matteo Detto
Biogeosciences, 21, 825–841, https://doi.org/10.5194/bg-21-825-2024, https://doi.org/10.5194/bg-21-825-2024, 2024
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We undertake a sensitivity study of three different parameters on the simulation of net ecosystem exchange (NEE) during the snow-covered non-growing season at an Arctic tundra site. Simulations are compared to eddy covariance measurements, with near-zero NEE simulated despite observed CO2 release. We then consider how to parameterise the model better in Arctic tundra environments on both sub-seasonal timescales and cumulatively throughout the snow-covered non-growing season.
Mennatullah T. Elrashidy, Andrew M. Ireson, and Saman Razavi
Hydrol. Earth Syst. Sci., 27, 4595–4608, https://doi.org/10.5194/hess-27-4595-2023, https://doi.org/10.5194/hess-27-4595-2023, 2023
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Wetlands are important ecosystems that store carbon and play a vital role in the water cycle. However, hydrological computer models do not always represent wetlands and their interaction with groundwater accurately. We tested different possible ways to include groundwater–wetland interactions in these models. We found that the optimal method to include wetlands and groundwater in the models is reliant on the intended use of the models and the characteristics of the land and soil being studied.
Hadleigh D. Thompson, Julie M. Thériault, Stephen J. Déry, Ronald E. Stewart, Dominique Boisvert, Lisa Rickard, Nicolas R. Leroux, Matteo Colli, and Vincent Vionnet
Earth Syst. Sci. Data, 15, 5785–5806, https://doi.org/10.5194/essd-15-5785-2023, https://doi.org/10.5194/essd-15-5785-2023, 2023
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The Saint John River experiment on Cold Season Storms was conducted in northwest New Brunswick, Canada, to investigate the types of precipitation that can lead to ice jams and flooding along the river. We deployed meteorological instruments, took precipitation measurements and photographs of snowflakes, and launched weather balloons. These data will help us to better understand the atmospheric conditions that can affect local communities and townships downstream during the spring melt season.
Reyhaneh Hashemi, Pierre Javelle, Olivier Delestre, and Saman Razavi
Hydrol. Earth Syst. Sci. Discuss., https://doi.org/10.5194/hess-2023-282, https://doi.org/10.5194/hess-2023-282, 2023
Manuscript not accepted for further review
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Here, we have tackled the challenge of estimating water flow in areas without direct measurements, a crucial task in hydrology. We have applied deep learning techniques to a large sample of French catchments with various hydrological regimes. We have also compared our approach with traditional methods. We found that incorporating more data improves the accuracy of our deep learning predictions. Notably, our method outperforms traditional approaches in certain regimes, though not universally.
Diogo Costa, Kyle Klenk, Wouter Knoben, Andrew Ireson, Raymond J. Spiteri, and Martyn Clark
EGUsphere, https://doi.org/10.5194/egusphere-2023-2787, https://doi.org/10.5194/egusphere-2023-2787, 2023
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This work helps improve water quality simulations in aquatic ecosystems through a new modeling concept, which we termed “OpenWQ”. It allows tailoring biogeochemistry calculations and integration with existing hydrological (water quantity) simulation tools. The integration is demonstrated with two hydrological models. The models were tested for different pollution scenarios. This paper helps improve interoperability, transparency, flexibility, and reproducibility in water quality simulations.
Zhihua He, Kevin Shook, Christopher Spence, John W. Pomeroy, and Colin Whitfield
Hydrol. Earth Syst. Sci., 27, 3525–3546, https://doi.org/10.5194/hess-27-3525-2023, https://doi.org/10.5194/hess-27-3525-2023, 2023
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This study evaluated the impacts of climate change on snowmelt, soil moisture, and streamflow over the Canadian Prairies. The entire prairie region was divided into seven basin types. We found strong variations of hydrological sensitivity to precipitation and temperature changes in different land covers and basins, which suggests that different water management and adaptation methods are needed to address enhanced water stress due to expected climate change in different regions of the prairies.
Alex Mavrovic, Oliver Sonnentag, Juha Lemmetyinen, Jennifer L. Baltzer, Christophe Kinnard, and Alexandre Roy
Biogeosciences, 20, 2941–2970, https://doi.org/10.5194/bg-20-2941-2023, https://doi.org/10.5194/bg-20-2941-2023, 2023
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This review supports the integration of microwave spaceborne information into carbon cycle science for Arctic–boreal regions. The microwave data record spans multiple decades with frequent global observations of soil moisture and temperature, surface freeze–thaw cycles, vegetation water storage, snowpack properties, and land cover. This record holds substantial unexploited potential to better understand carbon cycle processes.
Bo Qu, Alexandre Roy, Joe R. Melton, Jennifer L. Baltzer, Youngryel Ryu, Matteo Detto, and Oliver Sonnentag
EGUsphere, https://doi.org/10.5194/egusphere-2023-1167, https://doi.org/10.5194/egusphere-2023-1167, 2023
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Accurately simulating photosynthesis and evapotranspiration challenges terrestrial biosphere models across North America’s boreal biome, in part due to uncertain representation of the maximum rate of photosynthetic carboxylation (Vcmax). This study used forest stand scale observations in an optimization framework to improve Vcmax values for representative vegetation types. Several stand characteristics well explained spatial Vcmax variability and were useful to improve boreal forest modelling.
Stefano Potter, Sol Cooperdock, Sander Veraverbeke, Xanthe Walker, Michelle C. Mack, Scott J. Goetz, Jennifer Baltzer, Laura Bourgeau-Chavez, Arden Burrell, Catherine Dieleman, Nancy French, Stijn Hantson, Elizabeth E. Hoy, Liza Jenkins, Jill F. Johnstone, Evan S. Kane, Susan M. Natali, James T. Randerson, Merritt R. Turetsky, Ellen Whitman, Elizabeth Wiggins, and Brendan M. Rogers
Biogeosciences, 20, 2785–2804, https://doi.org/10.5194/bg-20-2785-2023, https://doi.org/10.5194/bg-20-2785-2023, 2023
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Here we developed a new burned-area detection algorithm between 2001–2019 across Alaska and Canada at 500 m resolution. We estimate 2.37 Mha burned annually between 2001–2019 over the domain, emitting 79.3 Tg C per year, with a mean combustion rate of 3.13 kg C m−2. We found larger-fire years were generally associated with greater mean combustion. The burned-area and combustion datasets described here can be used for local- to continental-scale applications of boreal fire science.
Zhe Zhang, Yanping Li, Fei Chen, Phillip Harder, Warren Helgason, James Famiglietti, Prasanth Valayamkunnath, Cenlin He, and Zhenhua Li
Geosci. Model Dev., 16, 3809–3825, https://doi.org/10.5194/gmd-16-3809-2023, https://doi.org/10.5194/gmd-16-3809-2023, 2023
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Crop models incorporated in Earth system models are essential to accurately simulate crop growth processes on Earth's surface and agricultural production. In this study, we aim to model the spring wheat in the Northern Great Plains, focusing on three aspects: (1) develop the wheat model at a point scale, (2) apply dynamic planting and harvest schedules, and (3) adopt a revised heat stress function. The results show substantial improvements and have great importance for agricultural production.
Evan J. Wilcox, Brent B. Wolfe, and Philip Marsh
Hydrol. Earth Syst. Sci., 27, 2173–2188, https://doi.org/10.5194/hess-27-2173-2023, https://doi.org/10.5194/hess-27-2173-2023, 2023
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The Arctic is warming quickly and influencing lake water balances. We used water isotope concentrations taken from samples of 25 lakes in the Canadian Arctic and estimated the average ratio of evaporation to inflow (E / I) for each lake. The ratio of watershed area (the area that flows into the lake) to lake area (WA / LA) strongly predicted E / I, as lakes with relatively smaller watersheds received less inflow. The WA / LA could be used to predict the vulnerability of Arctic lakes to future change.
Heidi Kreibich, Kai Schröter, Giuliano Di Baldassarre, Anne F. Van Loon, Maurizio Mazzoleni, Guta Wakbulcho Abeshu, Svetlana Agafonova, Amir AghaKouchak, Hafzullah Aksoy, Camila Alvarez-Garreton, Blanca Aznar, Laila Balkhi, Marlies H. Barendrecht, Sylvain Biancamaria, Liduin Bos-Burgering, Chris Bradley, Yus Budiyono, Wouter Buytaert, Lucinda Capewell, Hayley Carlson, Yonca Cavus, Anaïs Couasnon, Gemma Coxon, Ioannis Daliakopoulos, Marleen C. de Ruiter, Claire Delus, Mathilde Erfurt, Giuseppe Esposito, Didier François, Frédéric Frappart, Jim Freer, Natalia Frolova, Animesh K. Gain, Manolis Grillakis, Jordi Oriol Grima, Diego A. Guzmán, Laurie S. Huning, Monica Ionita, Maxim Kharlamov, Dao Nguyen Khoi, Natalie Kieboom, Maria Kireeva, Aristeidis Koutroulis, Waldo Lavado-Casimiro, Hong-Yi Li, Maria Carmen LLasat, David Macdonald, Johanna Mård, Hannah Mathew-Richards, Andrew McKenzie, Alfonso Mejia, Eduardo Mario Mendiondo, Marjolein Mens, Shifteh Mobini, Guilherme Samprogna Mohor, Viorica Nagavciuc, Thanh Ngo-Duc, Huynh Thi Thao Nguyen, Pham Thi Thao Nhi, Olga Petrucci, Nguyen Hong Quan, Pere Quintana-Seguí, Saman Razavi, Elena Ridolfi, Jannik Riegel, Md Shibly Sadik, Nivedita Sairam, Elisa Savelli, Alexey Sazonov, Sanjib Sharma, Johanna Sörensen, Felipe Augusto Arguello Souza, Kerstin Stahl, Max Steinhausen, Michael Stoelzle, Wiwiana Szalińska, Qiuhong Tang, Fuqiang Tian, Tamara Tokarczyk, Carolina Tovar, Thi Van Thu Tran, Marjolein H. J. van Huijgevoort, Michelle T. H. van Vliet, Sergiy Vorogushyn, Thorsten Wagener, Yueling Wang, Doris E. Wendt, Elliot Wickham, Long Yang, Mauricio Zambrano-Bigiarini, and Philip J. Ward
Earth Syst. Sci. Data, 15, 2009–2023, https://doi.org/10.5194/essd-15-2009-2023, https://doi.org/10.5194/essd-15-2009-2023, 2023
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As the adverse impacts of hydrological extremes increase in many regions of the world, a better understanding of the drivers of changes in risk and impacts is essential for effective flood and drought risk management. We present a dataset containing data of paired events, i.e. two floods or two droughts that occurred in the same area. The dataset enables comparative analyses and allows detailed context-specific assessments. Additionally, it supports the testing of socio-hydrological models.
Xinlei He, Yanping Li, Shaomin Liu, Tongren Xu, Fei Chen, Zhenhua Li, Zhe Zhang, Rui Liu, Lisheng Song, Ziwei Xu, Zhixing Peng, and Chen Zheng
Hydrol. Earth Syst. Sci., 27, 1583–1606, https://doi.org/10.5194/hess-27-1583-2023, https://doi.org/10.5194/hess-27-1583-2023, 2023
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This study highlights the role of integrating vegetation and multi-source soil moisture observations in regional climate models via a hybrid data assimilation and machine learning method. In particular, we show that this approach can improve land surface fluxes, near-surface atmospheric conditions, and land–atmosphere interactions by implementing detailed land characterization information in basins with complex underlying surfaces.
Mohamed S. Abdelhamed, Mohamed E. Elshamy, Saman Razavi, and Howard S. Wheater
The Cryosphere Discuss., https://doi.org/10.5194/tc-2023-20, https://doi.org/10.5194/tc-2023-20, 2023
Preprint withdrawn
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Prior to any climate change assessment, it is necessary to assess the ability of available models to reliably reproduce observed permafrost and hydrology. Following a progressive approach, various model set-ups were developed and evaluated against different data sources. The study shows that different model set-ups favour different sources of data and it is challenging to configure a model faithful to all data sources, which are at times inconsistent with each other.
Mohammad Ghoreishi, Amin Elshorbagy, Saman Razavi, Günter Blöschl, Murugesu Sivapalan, and Ahmed Abdelkader
Hydrol. Earth Syst. Sci., 27, 1201–1219, https://doi.org/10.5194/hess-27-1201-2023, https://doi.org/10.5194/hess-27-1201-2023, 2023
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The study proposes a quantitative model of the willingness to cooperate in the Eastern Nile River basin. Our results suggest that the 2008 food crisis may account for Sudan recovering its willingness to cooperate with Ethiopia. Long-term lack of trust among the riparian countries may have reduced basin-wide cooperation. The model can be used to explore the effects of changes in future dam operations and other management decisions on the emergence of basin cooperation.
Andrew M. Ireson, Raymond J. Spiteri, Martyn P. Clark, and Simon A. Mathias
Geosci. Model Dev., 16, 659–677, https://doi.org/10.5194/gmd-16-659-2023, https://doi.org/10.5194/gmd-16-659-2023, 2023
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Richards' equation (RE) is used to describe the movement and storage of water in a soil profile and is a component of many hydrological and earth-system models. Solving RE numerically is challenging due to the non-linearities in the properties. Here, we present a simple but effective and mass-conservative solution to solving RE, which is ideal for teaching/learning purposes but also useful in prototype models that are used to explore alternative process representations.
Evan J. Wilcox, Brent B. Wolfe, and Philip Marsh
Hydrol. Earth Syst. Sci., 26, 6185–6205, https://doi.org/10.5194/hess-26-6185-2022, https://doi.org/10.5194/hess-26-6185-2022, 2022
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We estimated how much of the water flowing into lakes during snowmelt replaced the pre-snowmelt lake water. Our data show that, as lake depth increases, the amount of water mixed into lakes decreased, because vertical mixing is reduced as lake depth increases. Our data also show that the water mixing into lakes is not solely snow-sourced but is a mixture of snowmelt and soil water. These results are relevant for lake biogeochemistry given the unique properties of snowmelt runoff.
Marcos R. C. Cordeiro, Kang Liang, Henry F. Wilson, Jason Vanrobaeys, David A. Lobb, Xing Fang, and John W. Pomeroy
Hydrol. Earth Syst. Sci., 26, 5917–5931, https://doi.org/10.5194/hess-26-5917-2022, https://doi.org/10.5194/hess-26-5917-2022, 2022
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This study addresses the issue of increasing interest in the hydrological impacts of converting cropland to perennial forage cover in the Canadian Prairies. By developing customized models using the Cold Regions Hydrological Modelling (CRHM) platform, this long-term (1992–2013) modelling study is expected to provide stakeholders with science-based information regarding the hydrological impacts of land use conversion from annual crop to perennial forage cover in the Canadian Prairies.
Christopher Spence, Zhihua He, Kevin R. Shook, John W. Pomeroy, Colin J. Whitfield, and Jared D. Wolfe
Hydrol. Earth Syst. Sci., 26, 5555–5575, https://doi.org/10.5194/hess-26-5555-2022, https://doi.org/10.5194/hess-26-5555-2022, 2022
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We learnt how streamflow from small creeks could be altered by wetland removal in the Canadian Prairies, where this practice is pervasive. Every creek basin in the region was placed into one of seven groups. We selected one of these groups and used its traits to simulate streamflow. The model worked well enough so that we could trust the results even if we removed the wetlands. Wetland removal did not change low flow amounts very much, but it doubled high flow and tripled average flow.
Sara Sadri, James S. Famiglietti, Ming Pan, Hylke E. Beck, Aaron Berg, and Eric F. Wood
Hydrol. Earth Syst. Sci., 26, 5373–5390, https://doi.org/10.5194/hess-26-5373-2022, https://doi.org/10.5194/hess-26-5373-2022, 2022
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A farm-scale hydroclimatic machine learning framework to advise farmers was developed. FarmCan uses remote sensing data and farmers' input to forecast crop water deficits. The 8 d composite variables are better than daily ones for forecasting water deficit. Evapotranspiration (ET) and potential ET are more effective than soil moisture at predicting crop water deficit. FarmCan uses a crop-specific schedule to use surface or root zone soil moisture.
Christophe Kinnard, Olivier Larouche, Michael N. Demuth, and Brian Menounos
The Cryosphere, 16, 3071–3099, https://doi.org/10.5194/tc-16-3071-2022, https://doi.org/10.5194/tc-16-3071-2022, 2022
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This study implements a physically based, distributed glacier mass balance model in a context of sparse direct observations. Carefully constraining model parameters with ancillary data allowed for accurately reconstructing the mass balance of Saskatchewan Glacier over a 37-year period. We show that the mass balance sensitivity to warming is dominated by increased melting and that changes in glacier albedo and air humidity are the leading causes of increased glacier melt under warming scenarios.
Dhiraj Pradhananga and John W. Pomeroy
Hydrol. Earth Syst. Sci., 26, 2605–2616, https://doi.org/10.5194/hess-26-2605-2022, https://doi.org/10.5194/hess-26-2605-2022, 2022
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This study considers the combined impacts of climate and glacier changes due to recession on the hydrology and water balance of two high-elevation glaciers. Peyto and Athabasca glacier basins in the Canadian Rockies have undergone continuous glacier loss over the last 3 to 5 decades, leading to an increase in ice exposure and changes to the elevation and slope of the glacier surfaces. Streamflow from these glaciers continues to increase more due to climate warming than glacier recession.
Christopher Spence, Zhihua He, Kevin R. Shook, Balew A. Mekonnen, John W. Pomeroy, Colin J. Whitfield, and Jared D. Wolfe
Hydrol. Earth Syst. Sci., 26, 1801–1819, https://doi.org/10.5194/hess-26-1801-2022, https://doi.org/10.5194/hess-26-1801-2022, 2022
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We determined how snow and flow in small creeks change with temperature and precipitation in the Canadian Prairie, a region where water resources are often under stress. We tried something new. Every watershed in the region was placed in one of seven groups based on their landscape traits. We selected one of these groups and used its traits to build a model of snow and streamflow. It worked well, and by the 2040s there may be 20 %–40 % less snow and 30 % less streamflow than the 1980s.
Hamidreza Omidvar, Ting Sun, Sue Grimmond, Dave Bilesbach, Andrew Black, Jiquan Chen, Zexia Duan, Zhiqiu Gao, Hiroki Iwata, and Joseph P. McFadden
Geosci. Model Dev., 15, 3041–3078, https://doi.org/10.5194/gmd-15-3041-2022, https://doi.org/10.5194/gmd-15-3041-2022, 2022
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This paper extends the applicability of the SUEWS to extensive pervious areas outside cities. We derived various parameters such as leaf area index, albedo, roughness parameters and surface conductance for non-urban areas. The relation between LAI and albedo is also explored. The methods and parameters discussed can be used for both online and offline simulations. Using appropriate parameters related to non-urban areas is essential for assessing urban–rural differences.
Sung-Ching Lee, Sara H. Knox, Ian McKendry, and T. Andrew Black
Atmos. Chem. Phys., 22, 2333–2349, https://doi.org/10.5194/acp-22-2333-2022, https://doi.org/10.5194/acp-22-2333-2022, 2022
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Wildfire smoke alters land–atmosphere exchange. Here, measurements in a forest and a wetland during four smoke episodes over four summers showed that impacts on radiation and heat budget were the greatest when smoke arrived in late summer. Both sites sequestered more CO2 under smoky days, partly due to diffuse light, but emitted CO2 when smoke was dense. This kind of field study is important for validating predictions of smoke–productivity feedbacks and has climate change implications.
Anna-Maria Virkkala, Susan M. Natali, Brendan M. Rogers, Jennifer D. Watts, Kathleen Savage, Sara June Connon, Marguerite Mauritz, Edward A. G. Schuur, Darcy Peter, Christina Minions, Julia Nojeim, Roisin Commane, Craig A. Emmerton, Mathias Goeckede, Manuel Helbig, David Holl, Hiroki Iwata, Hideki Kobayashi, Pasi Kolari, Efrén López-Blanco, Maija E. Marushchak, Mikhail Mastepanov, Lutz Merbold, Frans-Jan W. Parmentier, Matthias Peichl, Torsten Sachs, Oliver Sonnentag, Masahito Ueyama, Carolina Voigt, Mika Aurela, Julia Boike, Gerardo Celis, Namyi Chae, Torben R. Christensen, M. Syndonia Bret-Harte, Sigrid Dengel, Han Dolman, Colin W. Edgar, Bo Elberling, Eugenie Euskirchen, Achim Grelle, Juha Hatakka, Elyn Humphreys, Järvi Järveoja, Ayumi Kotani, Lars Kutzbach, Tuomas Laurila, Annalea Lohila, Ivan Mammarella, Yojiro Matsuura, Gesa Meyer, Mats B. Nilsson, Steven F. Oberbauer, Sang-Jong Park, Roman Petrov, Anatoly S. Prokushkin, Christopher Schulze, Vincent L. St. Louis, Eeva-Stiina Tuittila, Juha-Pekka Tuovinen, William Quinton, Andrej Varlagin, Donatella Zona, and Viacheslav I. Zyryanov
Earth Syst. Sci. Data, 14, 179–208, https://doi.org/10.5194/essd-14-179-2022, https://doi.org/10.5194/essd-14-179-2022, 2022
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The effects of climate warming on carbon cycling across the Arctic–boreal zone (ABZ) remain poorly understood due to the relatively limited distribution of ABZ flux sites. Fortunately, this flux network is constantly increasing, but new measurements are published in various platforms, making it challenging to understand the ABZ carbon cycle as a whole. Here, we compiled a new database of Arctic–boreal CO2 fluxes to help facilitate large-scale assessments of the ABZ carbon cycle.
Julien Meloche, Alexandre Langlois, Nick Rutter, Alain Royer, Josh King, Branden Walker, Philip Marsh, and Evan J. Wilcox
The Cryosphere, 16, 87–101, https://doi.org/10.5194/tc-16-87-2022, https://doi.org/10.5194/tc-16-87-2022, 2022
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To estimate snow water equivalent from space, model predictions of the satellite measurement (brightness temperature in our case) have to be used. These models allow us to estimate snow properties from the brightness temperature by inverting the model. To improve SWE estimate, we proposed incorporating the variability of snow in these model as it has not been taken into account yet. A new parameter (coefficient of variation) is proposed because it improved simulation of brightness temperature.
Chang-Hwan Park, Aaron Berg, Michael H. Cosh, Andreas Colliander, Andreas Behrendt, Hida Manns, Jinkyu Hong, Johan Lee, Runze Zhang, and Volker Wulfmeyer
Hydrol. Earth Syst. Sci., 25, 6407–6420, https://doi.org/10.5194/hess-25-6407-2021, https://doi.org/10.5194/hess-25-6407-2021, 2021
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In this study, we proposed an inversion of the dielectric mixing model for a 50 Hz soil sensor for agricultural organic soil. This model can reflect the variability of soil organic matter (SOM) in wilting point and porosity, which play a critical role in improving the accuracy of SM estimation, using a dielectric-based soil sensor. The results of statistical analyses demonstrated a higher performance of the new model than the factory setting probe algorithm.
Anton Jitnikovitch, Philip Marsh, Branden Walker, and Darin Desilets
The Cryosphere, 15, 5227–5239, https://doi.org/10.5194/tc-15-5227-2021, https://doi.org/10.5194/tc-15-5227-2021, 2021
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Conventional methods used to measure snow have many limitations which hinder our ability to document annual cycles, test predictive models, or analyze the impact of climate change. A modern snow measurement method using in situ cosmic ray neutron sensors demonstrates the capability of continuously measuring spatially variable snowpacks with considerable accuracy. These sensors can provide important data for testing models, validating remote sensing, and water resource management applications.
McKenzie A. Kuhn, Ruth K. Varner, David Bastviken, Patrick Crill, Sally MacIntyre, Merritt Turetsky, Katey Walter Anthony, Anthony D. McGuire, and David Olefeldt
Earth Syst. Sci. Data, 13, 5151–5189, https://doi.org/10.5194/essd-13-5151-2021, https://doi.org/10.5194/essd-13-5151-2021, 2021
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Methane (CH4) emissions from the boreal–Arctic region are globally significant, but the current magnitude of annual emissions is not well defined. Here we present a dataset of surface CH4 fluxes from northern wetlands, lakes, and uplands that was built alongside a compatible land cover dataset, sharing the same classifications. We show CH4 fluxes can be split by broad land cover characteristics. The dataset is useful for comparison against new field data and model parameterization or validation.
Cited articles
Aksamit, N. O. and Pomeroy, J. W.: Scale Interactions in Turbulence for
Mountain Blowing Snow, J. Hydrometeorol., 19, 305–320, https://doi.org/10.1175/JHM-D-17-0179.1, 2018.
Aksamit, N. O. and Pomeroy, J. W.: Warm-air entrainment and advection during
alpine blowing snow events, The Cryosphere, 14, 2795–2807, https://doi.org/10.5194/tc-14-2795-2020, 2020.
Ali, G., Oswald, C. J., Spence, C., Cammeraat, E. L., McGuire, K. J.,
Meixner, T., and Reaney, S. M.: Towards a unified threshold-based
hydrological theory: necessary components and recurring challenges, Hydrol.
Process., 27, 313–318, https://doi.org/10.1002/hyp.9560, 2013.
Anderson, E. R.: Modelling changes in multi-decadal streamflow contributions
– Bologna Glacier, Selwyn Mountains, NWT, Canada, MSc Thesis, University
of Saskatchewan, Centre for Hydrology, Saskatoon, p. 162, 2017.
Anochikwa, C. I., van der Kamp, G., and Barbour, S. L.: Interpreting
pore-water pressure changes induced by water table fluctuations and
mechanical loading due to soil moisture changes, Can. Geotech. J., 49,
357–366, https://doi.org/10.1139/t11-106, 2012.
Asaadi, A., Arora, V. K., Melton, J. R., and Bartlett, P.: An improved
parameterization of leaf area index (LAI) seasonality in the Canadian Land
Surface Scheme (CLASS) and Canadian Terrestrial Ecosystem Model (CTEM)
modelling framework, Biogeosciences, 15, 6885–6907, https://doi.org/10.5194/bg-15-6885-2018, 2018.
Asong, Z. E., Elshamy, M. E., Princz, D., Wheater, H. S., Pomeroy, J. W.,
Pietroniro, A., and Cannon, A.: High-resolution meteorological forcing data
for hydrological modelling and climate change impact analysis in the
Mackenzie River Basin, Earth Syst. Sci. Data, 12, 629–645, https://doi.org/10.5194/essd-12-629-2020, 2020.
Bahrami, A., Goïta, K., Magagi, R., Davison, B., Razavi, S., Elshamy,
M., and Princz, D.: Data assimilation of satellite-based terrestrial water
storage changes into a hydrology land-surface model, J. Hydrol., 125744, https://doi.org/10.1016/j.jhydrol.2020.125744, 2020.
Baltzer, J. L., Veness, T., Sniderhan, A. E., Chasmer, L. E., and Quinton,
W. L.: Forests on thawing permafrost: fragmentation, edge effects, and net
forest loss, Global Change Biol., 20, 824–834, https://doi.org/10.1111/gcb.12349, 2014.
Bam, E. K. P., Ireson, A. M., van der Kamp, G., and Hendry, J. M.: Ephemeral
ponds: Are they the dominant source of depression-focused groundwater
recharge?, Water Resour. Res., 56, e24508, https://doi.org/10.1029/2019WR026640, 2020.
Barr, A. G., van der Kamp, G., Black, T. A., McCaughey J. H., and Nesic, Z.:
Energy balance closure at the BERMS flux towers in relation to the water
balance of the White Gull Creek watershed 1999–2009, Agr. Forest Meteorol.,
153, 3–13, https://doi.org/10.1016/j.agrformet.2011.05.017, 2012.
Bartlett, P. A., and Verseghy, D. L.: Modified treatment of intercepted snow
improves the simulated forest albedo in the Canadian Land Surface Scheme,
Hydrol. Process., 29, 3208–3226, https://doi.org/10.1002/hyp.10431, 2015.
Bentz, B. J., Régnière, J., Fettig, C. J., Hansen, E. M., Hayes, J.
L., Hicke, J. A., Kelsey, R. G., Negrón, J. F., and Seybold, S. J.:
Climate change and bark beetles of the western United States and Canada:
direct and indirect effects, BioScience, 60, 602–613, https://doi.org/10.1525/bio.2010.60.8.6, 2010.
Berg, E. E., Henry, J. D., Fastie, C. L., De Volder, A. D., and Matsuoka, S.
M.: Spruce beetle outbreaks on the Kenai Peninsula, Alaska, and Kluane
National Park and Reserve, Yukon Territory: Relationship to summer
temperatures and regional differences in disturbance regimes, Forest Ecol.
Manage., 227, 219–232, https://doi.org/10.1016/j.foreco.2006.02.038, 2006.
Bergengren, J. C., Waliser, D. E., and Yung, Y. L.: Ecological sensitivity:
a biospheric view of climate change, Climatic Change, 107, 433–457,
https://doi.org/10.1007/s10584-011-0065-1, 2011.
Black, T. A. and Jassal, R. S.: Evapotranspiration, in: Ecosystems: A
Biogeoscience Approach, edited by: Johnson, E. and Martin, Y., Cambridge University Press, Oxford, UK, 2016.
Brannen, R., Spence, C., and Ireson, A.: Influence of shallow
groundwater–surface water interactions on the hydrological connectivity and
water budget of a wetland complex, Hydrol. Process., 29, 3862–3877,
https://doi.org/10.1002/hyp.10563, 2015.
Brown, C. D. and Johnstone, J. F.: Once burned, twice shy: Repeat fires
reduce seed availability and alter substrate constraints on Picea mariana regeneration, Forest Ecol. Manage., 266, 34–41, https://doi.org/10.1016/j.foreco.2011.11.006, 2012.
Brown, C. D., Dufour-Tremblay, G., Jameson, R. G., Mamet, S. D., Trant, A.
J., Walker, X. J., Boudreau, S., Harper, K. A., Henry, G. H. R., Hermanutz,
L., Hofgaard, A., Isaeva, L., Kershaw, G. P., and Johnstone, J. F.:
Reproduction as a bottleneck to treeline advance across the circumarctic
forest tundra ecotone, Ecography, 42, 137–147, https://doi.org/10.1111/ecog.03733, 2019.
Brown, R., Marsh, P., Déry, S., and Yang, D.: Snow cover – Observations,
processes, changes, and impacts on northern hydrology, in: Arctic Hydrology, Permafrost and Ecosystems, edited by: Yang, D. and Kane, D., Springer, Cham,
61–99, https://doi.org/10.1007/978-3-030-50930-9_3, 2020.
Brown, R. D., Derksen, C., and Wang, L.: A multi-data set analysis of
variability and change in Arctic spring snow cover extent, 1967–2008, J.
Geophys. Res., 115, D16111, https://doi.org/10.1029/2010JD013975, 2010.
Burn, C. R. and Kokelj, S. V.: The environment and permafrost of the
Mackenzie Delta area, Permafrost Periglac., 20, 83–105, https://doi.org/10.1002/ppp.655, 2009.
Burn, D. H. and Whitfield, P. H.: Changes in floods and flood regimes in
Canada, Can. Water Resour. J., 41, 139–150, https://doi.org/10.1080/07011784.2015.1026844, 2016.
Burn, D. H. and Whitfield, P. H.: Changes in flood events inferred from
centennial length streamflow data records, Adv. Water Resour., 121, 333–349, https://doi.org/10.1016/j.advwatres.2018.08.017, 2018.
Bush, E. and Lemmen, D. S. (Eds.): Canada's changing climate report,
Government of Canada, Ottawa, Ontario, 444 pp., available at:
https://changingclimate.ca/CCCR2019/ (last access: 6 April 2021), 2019.
Campbell, E. M., Antos, J. A., and van Akker, L.: Resilience of southern Yukon boreal forests to spruce beetle outbreaks, Forest Ecol. Manage., 433, 52–63, https://doi.org/10.1016/j.foreco.2018.10.037, 2019.
Carpino, O. A., Berg, A. A., Quinton, W. L., and Adams, J. R.: Climate change
and permafrost thaw-induced boreal forest loss in northwestern Canada,
Environ. Res. Lett., 13, 084018, https://doi.org/10.1088/1748-9326/aad74e, 2018.
CCRN – Changing Cold Regions Network: http://www.ccrnetwork.ca/, last access: 6 April 2021.
CEC – Commission for Environmental Cooperation: Ecological regions of North
America: Toward a common perspective, Published by the Communications and
Public Outreach Department of the CEC Secretariat, Montreal, Quebec, Canada, 71 pp., ISBN 2-922305-18-X, 1997.
Chapin, F. S., Callaghan, T. V., Bergeron, Y., Fukuda, M., Johnstone, J. F.,
Juday, G., and Zimov, S. A.: Global change and the boreal forest:
Thresholds, shifting states or gradual change?, Ambio, 33, 361–365,
https://doi.org/10.1579/0044-7447-33.6.361, 2004.
Christensen, C. W., Hayashi, M., and Bentley, L. R.: Hydrogeological
characterization of an alpine aquifer system in the Canadian Rocky
Mountains, Hydrogeol. J., 28, 1871–1890, https://doi.org/10.1007/s10040-020-02153-7, 2020.
Clarke, G. K., Jarosch, A. H., Anslow, F. S., Radić, V., and Menounos,
B.: Projected deglaciation of western Canada in the twenty-first
century, Nat. Geosci., 8, 372–377, https://doi.org/10.1038/ngeo2407, 2015.
Coles, A. E. and McDonnell, J. J.: Fill and spill drives runoff connectivity
over frozen ground, J. Hydrol., 558, 115–128, https://doi.org/10.1016/j.jhydrol.2018.01.016, 2018.
Coles, A. E., McConkey, B. G., and McDonnell, J. J.: Climate change impacts
on hillslope runoff on the northern Great Plains, 1962–2013, J. Hydrol.,
550, 538–548, https://doi.org/10.1016/j.jhydrol.2017.05.023, 2017.
Connon, R., Devoie, E., Hayashi, M., Veness, T., and Quinton, W.: The
influence of shallow taliks on permafrost thaw and active layer dynamics in
subarctic Canada, J. Geophys. Res., 123, 281–297, https://doi.org/10.1002/2017JF004469, 2018.
Connon, R. F., Quinton, W. L., Craig, J. R., and Hayashi, M.: Changing
hydrologic connectivity due to permafrost thaw in the lower Liard River
valley, NWT, Canada, Hydrol. Process., 28, 4163–4178, https://doi.org/10.1002/hyp.10206, 2014.
Council of Canadian Academies: The sustainable management of groundwater in
Canada, Report of the Expert Panel on Groundwater, Council of Canadian
Academies, Ottawa, Canada, 255 pp., 2009.
Council of Canadian Academies: Water and agriculture in Canada: Towards
sustainable management of water resources, Report of the Expert Panel on
Sustainable Management of Water in the Agricultural Landscapes of Canada,
Council of Canadian Academies, Ottawa, Canada, 259 pp., 2013.
Cuffey, K. and Paterson, W. S. B.: The Physics of Glaciers, in: Encyclopedia of the World's Biomes, 4th Edn., edited by: Goldstein, M. I. and DellaSala, A. A., Elsevier, 182–194, https://doi.org/10.1016/B978-0-12-409548-9.12441-8, 2010.
Cummings, D. I., Russell, H. A., and Sharpe, D. R.: Buried-valley aquifers in
the Canadian Prairies: Geology, hydrogeology, and origin, Can. J. Earth
Sci., 49, 987–1004, https://doi.org/10.1139/e2012-041, 2012.
Davis, E. L. and Gedalof, Z. E.: Limited prospects for future alpine treeline advance in the Canadian Rocky Mountains, Global Change Biol., 24, 4489–4504, https://doi.org/10.1111/gcb.14338, 2018.
Davis, K. T., Dobrowski, S. Z., Holden, Z. A., Higuera, P. E., and Abatzoglou, J. T.: Microclimatic buffering in forests of the future: the
role of local water balance, Ecography, 42, 1–11, https://doi.org/10.1111/ecog.03836, 2019.
Dearborn, K. D. and Danby, R., K.: Climatic drivers of tree growth at tree
line in Southwest Yukon change over time and vary between landscapes, Climatic Change, 150, 211–225, https://doi.org/10.1007/s10584-018-2268-1, 2018.
DeBeer, C., Helgason, W. D., and Marsh, P. (Eds.): Water, ecosystem, cryosphere, and climate data from the interior of Western Canada and other cold regions, Earth Syst. Sci. Data, available at: https://essd.copernicus.org/articles/special_issue901.html, last access: 6 April 2021.
DeBeer, C. M., Wheater, H. S., Quinton, W. L., Carey, S. K., Stewart, R. E.,
Mackay, M. D., and Marsh, P.: The Changing Cold Regions Network: Observation, diagnosis and prediction of environmental change in the Saskatchewan and Mackenzie River Basins, Canada, Sci. China Earth Sci., 58, 46–60, https://doi.org/10.1007/s11430-014-5001-6, 2015.
DeBeer, C. M., Wheater, H. S., Carey, S. K., and Chun, K. P.: Recent
climatic, cryospheric, and hydrological changes over the interior of western
Canada: a review and synthesis, Hydrol. Earth Syst. Sci., 20, 1573–1598,
https://doi.org/10.5194/hess-20-1573-2016, 2016.
DeBeer, C. M. and Pomeroy, J. W.: Influence of snowpack and melt energy
heterogeneity on snow cover depletion and snowmelt runoff simulation in a
cold mountain environment, J. Hydrol., 553, 199–213, https://doi.org/10.1016/j.jhydrol.2017.07.051, 2017.
DeBeer, C. M., Sharp, M., and Schuster-Wallace, C.: Glaciers and Ice Sheets,
in: Encyclopedia of the World's Biomes, 4, edited by: Goldstein, M. I. and DellaSala, D. A., Elsevier, 182–194, https://doi.org/10.1016/B978-0-12-409548-9.12441-8, 2020.
Dee, D. P., Uppala, S. M., Simmons, A. J., Berrisford, P., Poli, P.,
Kobayashi, S., Andrae, U., Balmaseda, M. A., Balsamo, G., Bauer, P.,
Bechtold, P., Beljaars, A. C., van de Berg, L., Bidlot, J., Bormann, N.,
Delsol, C., Dragani, R., Fuentes, M., Geer, A. J., Haimberger, L., Healy, S.
B., Hersbach, H., Hólm, E. V., Isaksen, L., Kållberg, P.,
Köhler, M., Matricardi, M., McNally, A. P., Monge-Sanz, B. M.,
Morcrette, J., Park, B., Peubey, C., de Rosnay, P., Tavolato, C.,
Thépaut, J., and Vitart, F.: The ERA-Interim reanalysis: configuration
and performance of the data assimilation system, Q. J. Roy. Meteorol. Soc.,
137, 553–597, https://doi.org/10.1002/qj.828, 2011.
Demuth, M.: Glaciers, in: 2018 State of the Mountains Report, Vol. 1, edited by: Parrott, L., Robinson, Z., and Hik, D., Alpine Club of Canada, Canmore, Alberta, Canada, 25–27, ISBN 978-0-920330-71-5, 2018.
Demuth, M. N. and Ednie, M.: A glacier condition and thresholding rubric
for use in assessing protected area/ecosystem functioning, Open File 8031, Geological Survey of Canada, Ottawa, Ontario, Canada, 53 pp., https://doi.org/10.4095/297892, 2016.
Demuth, M. N. and Horne, G.: Decadal-centenary glacier mass changes and their variability, Jasper National Park of Canada, Alberta, including the Columbia Icefield region, Open File 8229, Geological Survey of Canada, Ottawa, Ontario, Canada, https://doi.org/10.4095/304236, 2017.
Demuth, M. N., Pinard, V., Pientroniro, A., Luckman, B., Hopkinson, C.,
Dornes, P., and Comeau, L.: Recent and past-century variations in the
glacier resources of the Canadian Rocky Mountains – Nelson River system,
Terra Glacialis, 11, 27–52, 2008.
Demuth, M. N., Wilson, P., and Haggarty, D.: Glaciers of the Ragged Range, Nahanni National Park Reserve, Northwest Territories, Canada, in: Global Land Ice Measurements from Space, Springer Praxis Books, edited by: Kargel, J.,
Leonard, G., Bishop, M., Kääb, A., and Raup, B., Springer, Berlin,
Heidelberg, https://doi.org/10.1007/978-3-540-79818-7_16, 2014.
Devito, K. J., Hokanson, K. J., Moore, P. A., Kettridge, N., Anderson, A.
E., Chasmer, L., Hopkinson, C., Lukenbach, M. C., Mendoza, C. A.,
Morissette, J., Peters, D. L., Petrone, R. M., Silins, U., Smerdon, B., and
Waddington, J. M.: Landscape controls on long-term runoff in subhumid
heterogeneous Boreal Plains catchments, Hydrol. Process., 31, 2737–2751,
https://doi.org/10.1002/hyp.11213, 2017.
Devoie, É. G., Craig, J. R., Connon, R. F., and Quinton, W. L.: Taliks: A
tipping point in discontinuous permafrost degradation in peatlands, Water
Resour. Res., 55, 9838–9857, https://doi.org/10.1029/2018WR024488, 2019.
Dirmeyer, P. A., Schlosser, C. A., and Brubaker, K. L.: Precipitation,
recycling, and land memory: An integrated analysis, J. Hydrometeorol., 10,
278–288, https://doi.org/10.1175/2008JHM1016.1, 2009.
Dumanski, S., Pomeroy, J. W., and Westbrook, C. J.: Hydrological regime changes in a Canadian Prairie basin, Hydrol. Process., 29, 3893–3904,
https://doi.org/10.1002/hyp.10567, 2015.
Ednie, M. and Demuth, M. N.: Contemporary glacier area changes in the Ragged Range, Northwest Territories, including Nahanni National Park Reserve of Canada, Open File 8401, Geological Survey of Canada, Ottawa, Ontario, Canada, https://doi.org/10.4095/311351, 2018.
Ellis, C. R., Pomeroy, J. W., Brown, T., and MacDonald, J.: Simulation of
snow accumulation and melt in needleleaf forest environments, Hydrol. Earth
Syst. Sci., 14, 925–940, https://doi.org/10.5194/hess-14-925-2010, 2010.
Elshamy, M. E., Princz, D., Sapriza-Azuri, G., Abdelhamed, M. S.,
Pietroniro, A., Wheater, H. S., and Razavi, S.: On the configuration and
initialization of a large-scale hydrological land surface model to represent
permafrost, Hydrol. Earth Syst. Sci., 24, 349–379, https://doi.org/10.5194/hess-24-349-2020, 2020.
Ensom, T., Makarieva, O., Morse, P., Kane, D., Alekseev, V., and Marsh, P.:
The distribution and dynamics of aufeis in permafrost regions, Permafrost
Periglac., 31, 383–395, https://doi.org/10.1002/ppp.2051, 2020.
Fang, X. and Pomeroy, J. W.: Diagnosis of future changes in hydrology for a
Canadian Rockies headwater basin, Hydrol. Earth Syst. Sci., 24, 2731–2754,
https://doi.org/10.5194/hess-24-2731-2020, 2020.
Fang, X., Pomeroy, J. W., Ellis, C. R., MacDonald, M. K., DeBeer, C. M., and
Brown, T.: Multi-variable evaluation of hydrological model predictions for a
headwater basin in the Canadian Rocky Mountains, Hydrol. Earth Syst. Sci.,
17, 1635–1659, https://doi.org/10.5194/hess-17-1635-2013, 2013.
Fortin, V., Roy, G., Stadnyk, T., Koenig, K., Gasset, N., and Mahidjiba, A.:
Ten years of science based on the Canadian precipitation analysis: A CaPA
system overview and literature review, Atmos.-Ocean, 56, 178–196,
https://doi.org/10.1080/07055900.2018.1474728, 2018.
Gibson, C., Morse, P. D., Kelly, J. M., Turetsky, M. R., Baltzer, J. L., Gingras-Hill, T., and Kokelj, S. V.: Thermokarst Mapping Collective: Protocol for organic permafrost terrain and preliminary inventory from the Taiga Plains test area, Northwest Territories, appendix, and digital data, NWT Open Report 2020-010, Northwest Territories Geological Survey, Yellowknife, Northwest Territories, Canada, 24 pp., 2020.
Gibson, C. M., Chasmer, L. E., Thompson, D. K., Quinton, W. L., Flannigan,
M. D., and Olefeldt, D.: Wildfire as a major driver of recent permafrost
thaw in boreal peatlands, Nat. Commun., 9, 3041, https://doi.org/10.1038/s41467-018-05457-1, 2018.
GNWT – Government of the Northwest Territories: Mountain pine beetle
vulnerability (Pan-Territorial Information Notes No. Mar.2013.NT.05), Forest
Management Division, Department of Environment and Natural Resources,
Government of Northwest Territories, Fort Smith, NT, 2013.
Gober, P. and Wheater, H. S.: Socio-hydrology and the science–policy
interface: A case study of the Saskatchewan River basin, Hydrol. Earth Syst.
Sci., 18, 1413–1422, https://doi.org/10.5194/hess-18-1413-2014, 2014.
Granger, R. and Pomeroy, J. W.: Sustainability of the western Canadian
boreal forest under changing hydrological conditions. II. Summer energy and
water use, in: Sustainability of Water Resources Under Increasing
Uncertainty (Proceedings of the Rabat Symposium S1, April 1997), IAHS Publ., 240, 243–249, 1997.
Grünberg, I., Wilcox, E. J., Zwieback, S., Marsh, P., and Boike, J.: Linking tundra vegetation, snow, soil temperature, and permafrost, Biogeosciences, 17, 4261–4279, https://doi.org/10.5194/bg-17-4261-2020, 2020.
GWF – Global Water Futures: Solutions to Water Threats in an Era of Global Change, available at: https://gwf.usask.ca/, last access: 6 April 2021.
Hanes, C. C., Wang, X., Jain, P., Parisien, M.-A., Little, J. M., and
Flannigan, M. D.: Fire-regime changes in Canada over the last half century,
Can. J. Forest Res., 49, 256–269, https://doi.org/10.1139/cjfr-2018-0293, 2019.
Hanesiak, J., Stewart, R. E., Bonsal, B. R., Harder, P., Lawford, R., Aider,
R., Amiro, B. D., Atallah, E., Barr, A. G., Black, T. A., Bullock, P.,
Brimelow, J. C., Brown, R., Carmichael, H., Derksen, C., Flanagan, L. B.,
Gachon, P., Greene, H., Gyakum, J., Henson, W., Hogg, E. H., Kochtubajda,
B., Leighton, H., Lin, C., Luo, Y., McCaughey, J. H., Meinert, A., Shabbar,
A., Snelgrove, K., Szeto, K., Trishchenko, A., van der Kamp, G., Wang, S.,
Wen, L., Wheaton, E., Wielki, C., Yang, Y., Yirdaw, S., and Zha, T.:
Characterization and summary of the 1999–2005 Canadian Prairie drought,
Atmos.-Ocean, 49, 421–452, https://doi.org/10.1080/07055900.2011.626757, 2011.
Hannah, L., Roehrdanz, P. R., KC, K. B., Fraser, E. D., Donatti, C. I.,Saenz, L., Wright, T. M., Hijmans, R. J., Mulligan, M., Berg, A., and van Soesbergen, A.: The environmental consequences of climate-driven agricultural frontiers, PloS ONE, 15, e0228305, https://doi.org/10.1371/journal.pone.0228305, 2020.
Harder, P. and Pomeroy, J. W.: Hydrological model uncertainty due to
precipitation-phase partitioning methods, Hydrol. Process., 28, 4311–4327,
https://doi.org/10.1002/hyp.10214, 2014.
Harder, P., Pomeroy, J. W., and Helgason, W. D.: Implications of stubble
management on snow hydrology and meltwater partitioning, Can. Water Resour.
J., 44, 193–204, https://doi.org/10.1080/07011784.2019.1575774, 2019.
Harrington, J. S., Mozil, A., Hayashi, M., and Bentley, L. R.: Groundwater
flow and storage processes in an inactive rock glacier, Hydrol. Process.,
32, 3070–3088, https://doi.org/10.1002/hyp.13248, 2018.
Harsch, M. A., Hulme, P. E., McGlone, M. S., and Duncan, R. P.: Are
treelines advancing? A global meta-analysis of treeline response to climate
warming, Ecol. Lett., 12, 1040–1049, https://doi.org/10.1111/j.1461-0248.2009.01355.x, 2009.
Hart, S. J., Henkelman, J., McLoughlin, P. D., Nielsen, S. E., Truchon-Savard, A., and Johnstone, J. F.: Examining forest resilience to
changing fire frequency in a fire-prone region of boreal forest, Global
Change Biol., 25, 869–884, https://doi.org/10.1111/gcb.14550, 2019.
Hayashi, M.: Alpine hydrogeology: The critical role of groundwater in
sourcing the headwaters of the world, Groundwater, 58:, 498–510, https://doi.org/10.1111/gwat.12965, 2020.
Hayashi, M. and Farrow, C. R.: Watershed-scale response of groundwater
recharge to inter-annual and inter-decadal variability in precipitation,
Hydrogeol. J., 22, 1825–1839, https://doi.org/10.1007/s10040-014-1176-3, 2014.
Hayashi, M., van der Kamp, G., and Rosenberry, D. O.: Hydrology of prairie
wetlands: Understanding the integrated surface-water and groundwater
processes, Wetlands, 36, 237–254, https://doi.org/10.1007/s13157-016-0797-9, 2016.
Haynes, K. M., Connon, R. F., and Quinton, W. L.: Permafrost thaw induced
drying of wetlands at Scotty Creek, NWT, Canada, Environ. Res. Lett., 13,
114001, https://doi.org/10.1088/1748-9326/aae46c, 2018.
Hedstrom, N. R. and Pomeroy, J. W.: Measurements and modelling of snow
interception in the boreal forest, Hydrol. Process., 12, 1611–1625,
https://doi.org/10.1002/(SICI)1099-1085(199808/09)12:10/11<1611::AID-HYP684>3.0.CO;2-4,
1998.
Helbig, M., Pappas, C., and Sonnentag, O.: Permafrost thaw and wildfire:
Equally important drivers of boreal tree cover changes in the Taiga Plains,
Canada, Geophys. Res. Lett., 43, 1598–1606, https://doi.org/10.1002/2015GL067193, 2016.
Hogg, E. H., Brandt, J. P., and Michaelian, M.: Impacts of a regional drought
on the productivity, dieback, and biomass of western Canadian aspen
forests, Can. J. Forest Res., 38, 1373–1384, https://doi.org/10.1139/X08-001, 2008.
Holloway, J. E., Lewkowicz, A. G., Douglas, T. A., Li, X., Turetsky, M. R.,
Baltzer, J. L., and Jin, H.: Impact of wildfire on permafrost landscapes: A
review of recent advances and future prospects, Permafrost Periglac.
Process., 31, 371–382, https://doi.org/10.1002/ppp.2048, 2020.
Hood, J. L. and Hayashi, M.: Characterization of snowmelt flux and
groundwater storage in an alpine headwater basin, J. Hydrol., 521, 482–497,
https://doi.org/10.1016/j.jhydrol.2014.12.041, 2015.
Huss, M. and Hock, R.: Global-scale hydrological response to future glacier
mass loss, Nat. Clim. Change, 8, 135–140, https://doi.org/10.1038/s41558-017-0049-x, 2018.
IPCC – Intergovernmental Panel on Climate Change: Climate Change 2013: The
Physical Science Basis, in: Contribution of Working Group I to the Fifth
Assessment Report of the Intergovernmental Panel on Climate Change, edited by: Stocker, T. F., Qin, D., Plattner, G.-K., Tignor, M., Allen, S. K., Boschung, J., Nauels, A., Xia, Y., Bex, V., and Midgley, P. M., Cambridge University Press, Cambridge, UK and New York, NY, USA, 1535 pp., 2013.
Ireson, A. M., Barr, A. G., Johnstone, J. F., Mamet, S. D., Van der Kamp,
G., Whitfield, C. J., Michel, N. L., North, R. L., Westbrook, C. J., DeBeer,
C., Chun, K. P., Nazemi, A., and Sagin, J.: The changing water cycle: the
Boreal Plains ecozone of Western Canada, Wiley Interdisciplin. Rev.:
Water, 2, 505–521, https://doi.org/10.1002/wat2.1098, 2015.
Johnstone, J. F., Hollingsworth, T. N., Chapin, F. S., and Mack, M. C.:
Changes in fire regime break the legacy lock on successional trajectories in
Alaskan boreal forest, Global Change Biol., 16, 1281–1295, https://doi.org/10.1111/j.1365-2486.2009.02051.x, 2010a.
Johnstone, J. F., McIntire, E. J. B., Pedersen, E., King, G., and Pisaric,
M. F. J.: A sensitive slope: Estimating landscape patterns of forest
resilience in a changing climate, Ecosphere, 1, 14, https://doi.org/10.1890/ES10-00102.1, 2010b.
Johnstone, J. F., Chapin, F. S., Hollingsworth, T. N., Mack, M. C.,
Romanovsky, V., and Turetsky, M.: Fire, climate change, and forest
resilience in interior Alaska, Can. J. Forest Res., 40, 1302–1312,
https://doi.org/10.1139/X10-061, 2010c.
Johnstone, J. F., Allen, C. D., Franklin, J. F., Frelich, L. E., Harvey, B.
D., Higuera, P. E., Mack, M. C., Meentemeyer, R. K., Metz, M. R., Perry, G.
L. W., Schoennagel, T., and Turner, M. G.: Changing disturbance regimes,
ecological memory, and forest resilience, Front. Ecol. Environ., 14,
369–378, https://doi.org/10.1002/fee.1311, 2016.
Ju, J. and Masek, J. G.: The vegetation greenness trend in Canada and US
Alaska from 1984–2012 Landsat data, Remote Sens. Environ., 176, 1–16,
https://doi.org/10.1016/j.rse.2016.01.001, 2016.
Keane, R. E., Hessburg, P. F., Landres, P. B., and Swanson, F. J.: The use
of historical range and variability (HRV) in landscape management, Forest
Ecol. Manage., 258, 1025–1037, https://doi.org/10.1016/j.foreco.2009.05.035, 2009.
Keenan, T. F. and Riley, W. J.: Greening of the land surface in the world's
cold regions consistent with recent warming, Nat. Clim. Change, 8, 825–828, https://doi.org/10.1038/s41558-018-0258-y, 2018.
Kljun, N., Black, T. A., Griffis, T. J., Barr, A. G., Gaumont-Guay, D.,
Morgenstern, K., McCaughey, J. H., and Nesic, Z.: Response of net ecosystem
productivity of three boreal forest stands to drought, Ecosystems, 9,
1128–1144, https://doi.org/10.1007/s10021-005-0082-x, 2006.
Krogh, S. A. and Pomeroy, J. W.: Impact of Future Climate and Vegetation on
the Hydrology of an Arctic Headwater Basin at the Tundra–Taiga Transition, J. Hydrometeorol., 20, 197–215, https://doi.org/10.1175/JHM-D-18-0187.1, 2019.
Krogh, S. A., Pomeroy, J. W., and Marsh, P.: Diagnosis of the hydrology of a
small Arctic basin at the tundra-taiga transition using a physically based
hydrological model, J. Hydrol., 550, 685–703, https://doi.org/10.1016/j.jhydrol.2017.05.042, 2017.
Kurkute, S., Li, Z., Li, Y., and Huo, F.: Assessment and projection of the
water budget over western Canada using convection-permitting weather
research and forecasting simulations, Hydrol. Earth Syst. Sci., 24,
3677–3697, https://doi.org/10.5194/hess-24-3677-2020, 2020.
Kurylyk, B. L., Hayashi, M., Quinton, W. L., McKenzie, J. M., and Voss, C.
I.: Influence of vertical and lateral heat transfer on permafrost thaw,
peatland landscape transition, and groundwater flow, Water Resour. Res., 52,
1286–1305, https://doi.org/10.1002/2015WR018057, 2016.
Landhausser, S. M., Deshaies, D., and Lieffers, V. J.: Disturbance
facilitates rapid range expansion of aspen into higher elevations of the
Rocky Mountains under a warming climate, J. Biogeogr., 37, 68–76,
https://doi.org/10.1111/j.1365-2699.2009.02182.x, 2010.
Lantz, T. C., Kokelj, S. V., Gergel, S. E., and Henryz, G. H. R.: Relative
impacts of disturbance and temperature: Persistent changes in
microenvironment and vegetation in retrogressive thaw slumps, Global Change
Biol., 15, 1664–1675, https://doi.org/10.1111/j.1365-2486.2009.01917.x, 2009.
Lantz, T. C., Marsh, P., and Kokelj, S. V.: Recent Shrub Proliferation in
the Mackenzie Delta Uplands and Microclimatic Implications, Ecosystems, 16,
47–59, https://doi.org/10.1007/s10021-012-9595-2, 2013.
Lantz, T. C., Moffat, N. D., Fraser, R. H., and Walker, X.: Reproductive
limitation mediates the response of white spruce (Picea glauca) to climate
warming across the forest–tundra ecotone, Arctic Sci., 5, 167–184,
https://doi.org/10.1139/as-2018-0012, 2019.
Lara, R. P., Berg, A. A., Warland, J., and Tetlock, E.: In situ estimates of
freezing/melting point depression in agricultural soils using permittivity
and temperature measurements, Water Resour. Res., 56, e2019WR026020, https://doi.org/10.1029/2019WR026020, 2020.
Leroux, N. R. and Pomeroy, J. W.: Modelling capillary hysteresis effects on
preferential flow through melting and cold layered snowpacks, Adv. Water
Resour., 107, 250–264, https://doi.org/10.1016/j.advwatres.2017.06.024, 2017.
Leroux, N. R. and Pomeroy, J. W.: Simulation of capillary pressure overshoot
in snow combining trapping of the wetting phase with a nonequilibrium
Richards equation model, Water Resour. Res., 55, 236–248, https://doi.org/10.1029/2018WR022969, 2019.
Lewkowicz, A. G. and Way, R. G.: Extremes of summer climate trigger
thousands of thermokarst landslides in a High Arctic environment, Nat.
Commun., 10, 1329, https://doi.org/10.1038/s41467-019-09314-7, 2019.
Li, L. and Pomeroy, J. W.: Probability of occurrence of blowing snow, J. Geophys. Res., 102, 21955–21964, https://doi.org/10.1029/97JD01522, 1997.
Li, Y., Szeto, K., Stewart, R. E., Thériault, J. M., Chen, L.,
Kochtubajda, B., Liu, A., Boodoo, S., Goodson, R., Mooney, C., and Kurkute,
S.: A numerical study of the June 2013 flood-producing extreme rainstorm
over southern Alberta, J. Hydrometeorol., 18, 2057–2078, https://doi.org/10.1175/JHM-D-15-0176.1, 2017.
Li, Y., Li, Z., Zhang, Z., Chen, L., Kurkute, S., Scaff, L., and Pan, X.:
High-resolution regional climate modeling and projection over western Canada
using a weather research forecasting model with a pseudo-global warming
approach, Hydrol. Earth Syst. Sci., 23, 4635–4659, https://doi.org/10.5194/hess-23-4635-2019, 2019.
Lund, M.: Uncovering the unknown – climate interactions in a changing arctic
tundra, Environ. Res. Lett., 13, 061001, https://doi.org/10.1088/1748-9326/aac63f, 2018.
Lundquist, J. D., Dickerson-Lange, S. E., Lutz, J. A., and Cristea, N. C.:
Lower forest density enhances snow retention in regions with warmer winters:
A global framework developed from plot-scale observations and modeling, Water
Resour. Res., 49, 6356–6370, https://doi.org/10.1002/wrcr.20504, 2013.
Macias-Fauria, M. and Johnson, E. A.: Warming-induced upslope advance of
subalpine forest is severely limited by geomorphic processes, P. Natl. Acad. Sci. USA, 110, 8117–8122, https://doi.org/10.1073/pnas.1221278110, 2013.
Mack, M. C., Bret-Harte, M. S., Hollingsworth, T. N., Jandt, R. R., Schuur,
E. A. G., Shaver, G. R., and Verbyla, D. L.: Carbon loss from an
unprecedented Arctic tundra wildfire, Nature, 475, 489–492, https://doi.org/10.1038/nature10283, 2011.
Mamet, S. D., Brown, C. D., Trant, A. J., and Laroque, C. P.: Shifting
global Larix distributions: Northern expansion and southern retraction as
species respond to changing climate, J. Biogeogr., 46, 30–44, https://doi.org/10.1111/jbi.13465, 2019.
Margolis, H. A., and Ryan, M. G.: A physiological basis for
biosphere–atmosphere interactions in the boreal forest: An overview, Tree
Physiol., 17, 491–499, https://doi.org/10.1093/treephys/17.8-9.491, 1997.
Marsh, P., Mann, P., and Walker, B.: Changing snowfall and snow cover in the
western Canadian Arctic, in: 22nd Northern Research Basins Symposium and Workshop, edited by: Quinton, W., 1–10, available at:
https://conferences.wlu.ca/22ndnrb/ (last access: 6 April 2021), 2019.
Marshall, S. J. and Miller, K.: Seasonal and interannual variability of
melt-season albedo at Haig Glacier, Canadian Rocky Mountains, The
Cryosphere, 14, 1–19, https://doi.org/10.5194/tc-14-1-2020, 2020.
Marshall, S. J., White, E. C., Demuth, M. N., Bolch, T., Wheate, R.,
Menounos, B., Beedle, M. J., and Shea, J. M.: Glacier water resources on the
eastern slopes of the Canadian Rocky Mountains, Can. Water Resour. J., 36,
109–134, https://doi.org/10.4296/cwrj3602823, 2011.
Martz, L. W., Bruneau, J., and Rolfe, J. T.: Climate change and water: SSRB
(South Saskatchewan River Basin) final technical report, University of
Saskatchewan, Saskatoon, SK, Canada, 341 pp., 2007.
Marzeion, B., Kaser, G., Maussion, F., and Champollion, N.: Limited
influence of climate change mitigation on short-term glacier mass loss, Nat.
Clim. Change, 8, 305–308, https://doi.org/10.1038/s41558-018-0093-1, 2018.
Mekis, E., Stewart, R. E., Theriault, J. M., Kochtubajda, B., Bonsal, B. R.,
and Liu, Z.: Near-0 ∘C surface temperature and precipitation type
patterns across Canada, Hydrol. Earth Syst. Sci., 24, 1741–1761, https://doi.org/10.5194/hess-24-1741-2020, 2020.
Mekonnen, M. A., Wheater, H. S., Ireson, A. M., Spence, C., Davison, B., and
Pietroniro, A.: Towards an improved land surface scheme for prairie
landscapes, J. Hydrol., 511, 105–116, https://doi.org/10.1016/j.jhydrol.2014.01.020, 2014.
Ménard, C. B., Essery, R., and Pomeroy, J.: Modelled sensitivity of the
snow regime to topography, shrub fraction and shrub height, Hydrol. Earth
Syst. Sci., 18, 2375–2392, https://doi.org/10.5194/hess-18-2375-2014, 2014.
Menounos, B., Hugonnet, R., Shean, D., Gardner, A., Howat, I., Berthier, E.,
Pelto, B., Tennant, C., Shea, J., Noh, M.-J., Brun, F., and Dehecq, A.:
Heterogeneous changes in western North American glaciers linked to decadal
variability in zonal wind strength, Geophys. Res. Lett., 46, 200–209
https://doi.org/10.1029/2018GL080942, 2019.
Moore, R. D., Pelto, B., Menounos, B., and Hutchinson, D.: Detecting the
Effects of Sustained Glacier Wastage on Streamflow in Variably Glacierized
Catchments, Front. Earth Sci., 8, 136, https://doi.org/10.3389/feart.2020.00136, 2020.
Mortsch, L., Cohen, S., and Koshida, G.: Climate and water availability
indicators in Canada: Challenges and a way forward. Part II – Historic
trends, Can. Water Resour. J., 40, 146–159, https://doi.org/10.1080/07011784.2015.1006024, 2015.
Mudryk, L. R., Derksen, C., Howell, S., Laliberté, F., Thackeray, C.,
Sospedra-Alfonso, R., Vionnet, V., Kushner, P. J., and Brown, R.: Canadian
snow and sea ice: historical trends and projections, The Cryosphere, 12,
1157–1176, https://doi.org/10.5194/tc-12-1157-2018, 2018.
Munroe, E. A.: Effects of aquifer heterogeneity on estimation of permissible
long-term groundwater extraction rates, MSc Thesis, University of Calgary,
Calgary, AB, Canada, 141 pp., 2015.
Musselman, K. N., Clark, M. P., Liu, C., Ikeda, K., and Rasmussen, R.:
Slower snowmelt in a warmer world, Nat. Clim. Change, 7, 214–219, https://doi.org/10.1038/nclimate3225, 2017.
Myers-Smith, I. H., Forbes, B. C., Wilmking, M., Hallinger, M., Lantz, T.,
Blok, D., Tape, K. D., Macias-Fauria, M., Sass-Klaassen, U., Lévesque,
E., Boudreau, S., Ropars, P., Hermanutz, L., Trant, A., Siegwart Collier,
L., Weijers, S., Rozema, J., Rayback, S. A., Schmidt, N. M.,
Schaepman-Strub, G., Wipf, S., Rixen, C., Ménard, C. B., Venn, S.,
Goetz, S., Andreu-Hayles, L., Elmendorf, S., Ravolainen, V., Welker, J.,
Grogan, P., Epstein, H. E., and Hik, D. S.: Shrub expansion in tundra
ecosystems: Dynamics, impacts and research priorities, Environ. Res. Lett.,
6, 045509, https://doi.org/10.1088/1748-9326/6/4/045509, 2011.
Myers-Smith, I. H., Grabowski, M. M., Thomas, H. J. D., Angers-Blondin, S.,
Daskalova, G. N., Bjorkman, A. D., Cunliffe, A. M., Assmann, J. J., Boyle,
J. S., McLeod, E., McLeod, S., Joe, R., Lennie, P., Arey, D., Gordon, R. R.,
and Eckert, C. D.: Eighteen years of ecological monitoring reveals multiple
lines of evidence for tundra vegetation change, Ecol. Monogr., 89, e01351,
https://doi.org/10.1002/ecm.1351, 2019.
Nazarbakhsh, M., Ireson, A. M., and Barr, A. G.: Controls on
evapotranspiration from jack pine forests in the Boreal Plains Ecozone,
Hydrol. Process., 34, 927–940, https://doi.org/10.1002/hyp.13674, 2020.
Olefeldt, D., Goswami, S., Grosse, G., Hayes, D., Hugelius, G., Kuhry, P.,
McGuire, A. D., Romanovsky, V. E., Sannel, A. B. K., Schuur, E. A. G., and
Turetsky, M. R.: Circumpolar distribution and carbon storage of thermokarst
landscapes, Nat. Commun., 7, 1–11, https://doi.org/10.1038/ncomms13043, 2016.
Patankar, R., Quinton, W. L., Hayashi, M., and Baltzer, J. L.: Sap flow
responses to seasonal thaw and permafrost degradation in a subarctic boreal
peatland, Trees, 29, 129–142, https://doi.org/10.1007/s00468-014-1097-8, 2015.
Pavlovskii, I., Hayashi, M., and Itenfisu, D.: Midwinter melts in the
Canadian prairies: energy balance and hydrological effects, Hydrol. Earth
Syst. Sci., 23, 1867–1883, https://doi.org/10.5194/hess-23-1867-2019, 2019.
Paznekas, A. and Hayashi, M.: Groundwater contribution to winter streamflow
in the Canadian Rockies, Can. Water Resour. J., 41, 484–499, https://doi.org/10.1080/07011784.2015.1060870, 2016.
Peach, D. and Wheater, H.: Groundwater, hydrogeology and sustainability in
Saskatchewan: A review of groundwater and hydrogeological issues for
Saskatchewan and the development of a research strategy, Global Institute
for Water Security internal report, University of Saskatchewan, Saskatoon,
Canada, 54 pp., 2014.
Pelto, B. M., Menounos, B., and Marshall, S. J.: Multi-year evaluation of
airborne geodetic surveys to estimate seasonal mass balance, Columbia and
Rocky Mountains, Canada, The Cryosphere, 13, 1709–1727, https://doi.org/10.5194/tc-13-1709-2019, 2019.
Peng, C., Ma, Z., Lei, X., Zhu, Q., Chen, H., Wang, W., Liu, S., Li, W.,
Fang, X., and Zhou, X.: A drought-induced pervasive increase in tree
mortality across Canada's boreal forests, Nat. Clim. Change, 1, 467–471,
https://doi.org/10.1038/nclimate1293, 2011.
Pietroniro, A., Fortin, V., Kouwen, N., Neal, C., Turcotte, R., Davison, B.,
Verseghy, D., Soulis, E. D., Caldwell, R., Evora, N., and Pellerin, P.:
Development of the MESH modelling system for hydrological ensemble
forecasting of the Laurentian Great Lakes at the regional scale, Hydrol.
Earth Syst. Sci., 11, 1279–1294, https://doi.org/10.5194/hess-11-1279-2007, 2007.
Pinno, B. D., Errington, R. C., and Thompson, D. K.: Young jack pine and
high severity fire combine to create potentially expansive areas of
understocked forest, Forest Ecol. Manage., 310, 517–522, https://doi.org/10.1016/j.foreco.2013.08.055, 2013.
Pomeroy, J. W., de Boer, D., and Martz, L. M.: Hydrology and Water Resources
of Saskatchewan, Centre for Hydrology Report No. 1, University of Saskatchewan, Saskatoon, SK, Canada, 25 pp., 2005.
Pomeroy, J. W., Bewley, D. S., Essery, R. L. H., Hedstrom, N. R., Link, T.,
Granger, R. J., Sicart, J.-E., Ellis, C. R., and Janowicz, J. R.: Shrub
tundra snowmelt, Hydrol. Process., 20, 923–941, https://doi.org/10.1002/hyp.6124, 2006.
Pomeroy, J. W., Gray, D. M., Brown, T., Hedstrom, N. R., Quinton, W. L.,
Granger, R. J., and Carey, S. K.: The cold regions hydrological model: A
platform for basing process representation and model structure on physical
evidence, Hydrol. Process., 21, 2650–2667, https://doi.org/10.1002/hyp.6787, 2007.
Pomeroy, J. W., Fang, X., and Williams, B.: Impacts of climate change on
Saskatchewan's water resources, Centre for Hydrology Report No. 6,
University of Saskatchewan, Saskatoon, SK, Canada, 46 pp., 2009.
Pomeroy, J. W., Fang, X., and Ellis, C.: Sensitivity of snowmelt hydrology in
Marmot Creek, Alberta, to forest cover disturbance, Hydrol. Process., 26,
1891–1904, https://doi.org/10.1002/hyp.9248, 2012.
Pomeroy, J. W., Shook, K., Fang, X., Dumanski, S., Westbrook, C., and Brown,
T.: Improving and testing the prairie hydrological model at Smith Creek
Research Basin, Centre for Hydrology Report No. 14, University of
Saskatchewan, Saskatoon, SK, Canada, 102 pp., 2014.
Pomeroy, J. W., Fang, X., and Rasouli, K.: Sensitivity of snow processes to
warming in the Canadian Rockies, in: Proceedings of the 72nd Eastern
Snow Conference, 9–11 June 2015, Jouvence, Orford, Quebec, Canada, 22–33, 2015.
Post, E., Forchhammer, M. C., Bret-Harte, M. S., Callaghan, T. V.,
Christensen, T. R., Elberling, B., Fox, A. D., Gilg, O., Hik, D. S.,
Høye, T. T., Ims, R. A., Jeppesen, E., Klein, D. R., Madsen, J., McGuire,
A. D., Rysgaard, S., Schindler, D. E., Stirling, I., Tamstorf, M. P., Tyler,
N. J. C., van der Wal, R., Welker, J., Wookey, P. A., Schmidt, N. M., and
Aastrup, P.: Ecological dynamics across the Arctic associated with recent
climate change, Science, 325, 1355–1358, https://doi.org/10.1126/science.1173113, 2009.
Pradhananga, D.: Response of Canadian Rockies glacier hydrology to changing
climate, PhD thesis, University of Saskatchewan, Saskatoon, SK, Canada,
191 pp., 2020.
Pureswaran, D. S., De Grandpré, L., Paré, D., Taylor, A., Barrette,
M., Morin, H., Régnière, J., and Kneeshaw, D. D.: Climate-induced
changes in host tree–insect phenology may drive ecological state-shift in
boreal forests, Ecology, 96, 1480–1491, https://doi.org/10.1890/13-2366.1, 2015.
Quinton, W., Berg, A., Braverman, M., Carpino, O., Chasmer, L., Connon, R.,
Craig, J., Devoie, É., Hayashi, M., Haynes, K., Olefeldt, D.,
Pietroniro, A., Rezanezhad, F., Schincariol, R., and Sonnentag, O.: A
synthesis of three decades of hydrological research at Scotty Creek, NWT,
Canada, Hydrol. Earth Syst. Sci., 23, 2015–2039, https://doi.org/10.5194/hess-23-2015-2019, 2019.
Quinton, W. L. and Baltzer, J. L.: The active-layer hydrology of a peat
plateau with thawing permafrost (Scotty Creek, Canada), Hydrogeol. J., 21,
201–220, https://doi.org/10.1007/s10040-012-0935-2, 2013.
Quinton, W. L., Hayashi, M., and Chasmer, L. E.: Peatland hydrology of
discontinuous permafrost in the Northwest Territories: overview and
synthesis, Can. Water Resour. J., 34, 311–328, https://doi.org/10.4296/cwrj3404311, 2009.
Rasmussen, R., Baker, B., Kochendorfer, J., Meyers, T., Landolt, S.,
Fischer, A. P., Black, J., Thériault, J. M., Kucera, P., Gochis, D., and
Smith, C.: How well are we measuring snow: The NOAA/FAA/NCAR winter
precipitation test bed, B. Am. Meteorol. Soc., 93, 811–829, https://doi.org/10.1175/BAMS-D-11-00052.1, 2012.
Rasouli, K., Pomeroy, J. W., and Whitfield, P. H.: Are the effects of
vegetation and soil changes as important as climate change impacts on
hydrological processes?, Hydrol. Earth Syst. Sci., 23, 4933–4954,
https://doi.org/10.5194/hess-23-4933-2019, 2019.
Razavi, S., Gober, P., Maier, H. R., Brouwer, R., and Wheater, H.: Anthropocene flooding: Challenges for science and society, Hydrol. Process., 34, 1996–2000, https://doi.org/10.1002/hyp.13723, 2020.
Rehfeldt, G. E., Crookston, N. L., Sáenz-Romero, C., and Campbell, E.
M.: North American vegetation model for land-use planning in a changing
climate: a solution to large classification problems, Ecol. Appl., 22,
119–141, https://doi.org/10.1890/11-0495.1, 2012.
RIFWP – Rosenberg International Forum on Water Policy: Rosenberg
International Forum: The Mackenzie River Basin, Report of the Rosenberg
International Forum's workshop on transboundary relations in the Mackenzie River Basin, 5–7 September 2012, Vancouver, British Columbia, Canada, 41 pp., 2013.
Rodell, M., Famiglietti, J. S., Wiese, D. N., Reager, J. T., Beaudoing, H.
K., Landerer, F. W., and Lo, M.-H.: Emerging trends in global freshwater
availability, Nature, 557, 651–659, https://doi.org/10.1038/s41586-018-0123-1, 2018.
Rogers, B. M., Balch, J. K., Goetz, S. J., Lehmann, C. E. R., and Turetsky,
M.: Focus on changing fire regimes: interactions with climate, ecosystems,
and society, Environ. Res. Lett., 15, 030201, https://doi.org/10.1088/1748-9326/ab6d3a, 2020.
Rouse, W. R., Blyth, E. M., Crawford, R. W., Gyakum, J. R., Janowicz, J. R.,
Kochtubajda, B., Leighton, H. G., Marsh, P., Martz, L., Pietroniro, A.,
Ritchie, H., Schertzer, W. M., Soulis, E. D., Stewart, R. E., Strong, G. S.,
and Woo, M. K.: Energy and water cycles in a high latitude, north-flowing
river system: Summary of results from the Mackenzie GEWEX Study – Phase 1,
B. Am. Meteorol. Soc., 84, 73–87, https://doi.org/10.1175/BAMS-84-1-73, 2003.
Roussin, D. M. and Binyamin, J.: Historical precipitation characteristics
in the Palliser's Triangle region of the Canadian prairies, Prairie
Perspect.: Geogr. Essays, 20, 36–48, 2018.
Rowlandson, T. L., Berg, A. A., Roy, A., Kim, E., Lara, R.P., Powers, J.,
Lewis, K., Houser, P., McDonald, K., Toose, P., and Wu, A.: Capturing
agricultural soil freeze/thaw state through remote sensing and ground
observations: A soil freeze/thaw validation campaign, Remote Sens. Environ.,
211, 59–70, https://doi.org/10.1016/j.rse.2018.04.003, 2018.
Samimi, S. and Marshall, S. J.: Diurnal cycles of meltwater percolation,
refreezing, and drainage in the supraglacial snowpack of Haig Glacier,
Canadian Rocky Mountains, Front. Earth Sci., 5, 1–15, https://doi.org/10.3389/feart.2017.00006, 2017.
Sapriza-Azuri, G., Gamazo, P., Razavi, S., and Wheater, H. S.: On the
appropriate definition of soil profile configuration and initial conditions
for land surface–hydrology models in cold regions, Hydrol. Earth Syst.
Sci., 22, 3295–3309, https://doi.org/10.5194/hess-22-3295-2018, 2018.
Schirmer, M. and Pomeroy, J. W.: Processes governing snow ablation in alpine
terrain – detailed measurements from the Canadian Rockies, Hydrol. Earth
Syst. Sci., 24, 143–157, https://doi.org/10.5194/hess-24-143-2020, 2020.
Schuur, E. A. G. and Mack, M. C.: Ecological response to permafrost thaw
and consequences for local and global ecosystem services, Annu. Rev. Ecol.
Evol. S., 49, 279–301, https://doi.org/10.1146/annurev-ecolsys-121415-032349, 2018.
Segal, R. A., Lantz, T. C., and Kokelj, S. V.: Acceleration of thaw slump
activity in glaciated landscapes of the Western Canadian Arctic, Environ.
Res. Lett., 11, 034025, https://doi.org/10.1088/1748-9326/11/3/034025, 2016.
Seidl, R., Spies, T. A., Peterson, D. L., Stephens, S. L., and Hicke, J. A.:
Searching for resilience: Addressing the impacts of changing disturbance
regimes on forest ecosystem services, J. Appl. Ecol., 53, 120–129,
https://doi.org/10.1111/1365-2664.12511, 2016.
Shi, X., Marsh, P., and Yang, D.: Warming spring air temperatures, but
delayed spring streamflow in an Arctic headwater basin, Environ. Res. Lett.,
10, 064003, https://doi.org/10.1088/1748-9326/10/6/064003, 2015.
Shook, K., Pomeroy, J., and van der Kamp, G.: The transformation of
frequency distributions of winter precipitation to spring streamflow
probabilities in cold regions; case studies from the Canadian Prairies, J.
Hydrol., 521, 395–409, https://doi.org/10.1016/j.jhydrol.2014.12.014, 2015.
Smith, S. L.: Trends in permafrost conditions and ecology in northern
Canada, Canadian Biodiversity: Ecosystem Status and Trends 2010, Technical
Thematic Report No. 9, Canadian Councils of Resource Ministers, Ottawa, ON,
iii + 22 pp., 2011.
Sniderhan, A., Mamet, S., and Baltzer, J.: Non-uniform growth dynamics of a
dominant boreal tree species in the face of rapid climate change, Can. J.
Forest Res., https://doi.org/10.1139/cjfr-2020-0188, in press, 2020.
Sniderhan, A. E. and Baltzer, J. L.: Growth dynamics of black spruce (Picea
mariana) in a rapidly thawing discontinuous permafrost peatland, J. Geophys.
Res.-Biogeo., 121, 2988–3000, https://doi.org/10.1002/2016JG003528, 2016.
Spence, C. and Phillips, R. W.: Refining understanding of hydrological
connectivity in a boreal catchment, Hydrol. Process., 29, 3491–3503,
https://doi.org/10.1002/hyp.10270, 2015.
Stewart, R. E., Leighton, H. G., Marsh, P., Moore, G. W. K., Ritchie, H.,
Rouse, W. R., Soulis, E. D., Strong, G. S., Crawford, R. W., and
Kochtubajda, B.: The Mackenzie GEWEX Study: The water and energy cycles of a
major North American river basin, B. Am. Meteorol. Soc., 79, 2665–2683,
https://doi.org/10.1175/1520-0477(1998)079<2665:TMGSTW>2.0.CO;2, 1998.
Stewart, R. E., Szeto, K. K., Bonsal, B. R., Hanesiak, J. M., Kochtubajda,
B., Li, Y., Thériault, J. M., DeBeer, C. M., Tam, B. Y., Li, Z., Liu,
Z., Bruneau, J. A., Duplessis, P., Marinier, S., and Matte, D.: Summary and
synthesis of Changing Cold Regions Network (CCRN) research in the interior
of western Canada – Part 1: Projected climate and meteorology, Hydrol.
Earth Syst. Sci., 23, 3437–3455, https://doi.org/10.5194/hess-23-3437-2019, 2019.
Stone, L. E., Fang, X., Haynes, K. M., Helbig, M., Pomeroy, J. W., Sonnentag,
O., and Quinton, W. L.: Modelling the effects of permafrost loss on discharge
from a wetland-dominated, discontinuous permafrost basin, Hydrol. Process.,
33, 2607–2626, https://doi.org/10.1002/hyp.13546, 2019.
Stralberg, D., Arseneault, D., Baltzer, J. L., Barber, Q. E., Bayne, E. M.,
Boulanger, Y., Brown, C. D., Cooke, H. A., Devito, K., Edwards, J., Estevo,
C. A., Flynn, N., Frelich, L. E., Hogg, E. H., Johnston, M., Logan, T.,
Matsuoka, S. M., Moore, P., Morelli, T. L., Morissette, J. L., Nelson, E.
A., Nenzén, H., Nielsen, S. E., Parisien, M.-A., Pedlar, J. H., Price,
D. T., Schmiegelow, F. K. A., Slattery, S. M., Sonnentag, O., Thompson, D.
K., and Whitman, E.: Climate-change refugia in boreal North America: What,
where, and for how long?, Front. Ecol. Environ., 18, 261–270, https://doi.org/10.1002/fee.2188, 2020.
Sulla-Menashe, D., Woodcock, C. E., and Friedl, M. A.: Canadian boreal
forest greening and browning trends: An analysis of biogeographic patterns
and the relative roles of disturbance versus climate drivers, Environ. Res.
Lett., 13, 014007, https://doi.org/10.1088/1748-9326/aa9b88, 2018.
Szeto, K.: Assessing water and energy budgets for the Saskatchewan River
Basin, J. Meteorol. Soc. Jpn. Ser. II, 85, 167–186, https://doi.org/10.2151/jmsj.85A.167, 2007.
Szeto, K., Gysbers, P., Brimelow, J., and Stewart, R.: The 2014 extreme
flood on the southeastern Canadian Prairies, In: Explaining Extremes of 2014
from a Climate Perspective, B. Am. Meteorol. Soc., 96, S20–S24, 2015.
Szeto, K. S., Stewart, R. E., Yau, M. K., and Gyakum, J.: The Mackenzie
climate system: A synthesis of MAGS atmospheric research, in: Cold Region Atmospheric and Hydrologic Studies. The Mackenzie GEWEX Experience, Vol. 1: Atmospheric Dynamics, edited by: Woo, M. K., Springer-Verlag, Berlin, Heidelberg, 23–50, 2008.
Tennant, C. and Menounos, B.: Glacier change of the Columbia Icefield,
Canadian Rocky Mountains, 1919–2009, J. Glaciol., 59, 671–686, https://doi.org/10.3189/2013JoG12J135, 2013.
Tesemma, Z., Shook, K., and Pomeroy, J. W.: Diagnosis of Historical and
Future Flow Regimes of the Bow River at Calgary – Using a Dynamically
Downscaled Climate Model and a Physically Based Land Surface Hydrological
Model, Centre for Hydrology Report No. 18, University of Saskatchewan,
Saskatoon, Saskatchewan, Canada, 2020.
Toop, D. C. and de la Cruz, N. N.: Hydrogeology of the Canmore corridor and
northwestern Kananaskis Country, Alberta, Alberta Environment, Hydrogeology
Section, Edmonton, Alberta, Report to Western Economic Partnership
Agreement, Western Economic Diversification Canada, Edmonton, Alberta, Canada, 2002.
Trant, A., Higgs, E., and Starzomski, B. M.: A century of high elevation
ecosystem change in the Canadian Rocky Mountains, Sci. Rep., 10, 9698,
https://doi.org/10.1038/s41598-020-66277-2, 2020.
Trenberth, K. E.: Atmospheric moisture recycling: Role of advection and local
evaporation, J. Climate, 12, 1368–1381, https://doi.org/10.1175/1520-0442(1999)012<1368:AMRROA>2.0.CO;2, 1999.
Turetsky, M. R., Kane, E. S., Harden, J. W., Ottmar, R. D., Manies, K. L.,
Hoy, E., and Kasischke, E. S.: Recent acceleration of biomass burning and
carbon losses in Alaskan forests and peatlands, Nat. Geosci., 4, 27–31,
https://doi.org/10.1038/ngeo1027, 2011.
Turetsky, M. R., Baltzer, J. L., Johnstone, J. F., Mack, M. C., McCann, K.
S., and Schuur, E. A. G.: Losing legacies, ecological release, and transient
responses: Key challenges for the future of northern ecosystem science,
Ecosystems, 20, 23–30, https://doi.org/10.1007/s10021-016-0055-2, 2017.
Turetsky, M. R., Abbott, B. W., Jones, M. C., Anthony, K. W., Olefeldt, D.,
Schuur, E. A. G., Koven, C., McGuire, A. D., Grosse, G., Kuhry, P.,
Hugelius, G., Lawrence, D. M., Gibson, C., and Sannel, A. B. K.: Permafrost
collapse is accelerating carbon release, Nature, 569, 32–34, https://doi.org/10.1038/d41586-019-01313-4, 2019.
van der Kamp, G. and Hayashi, M.: The groundwater recharge function of small
wetlands in the semi-arid Northern Prairies, Great Plains Res., 8, 39–56, 1998.
van der Kamp, G., Hayashi, M., and Gallen, D.: Comparing the hydrology of a
grassed and cultivated catchments in the semi-arid Canadian prairies,
Hydrol. Process., 17, 559–575, https://doi.org/10.1002/hyp.1157, 2003.
Vincent, L. A., Zhang, X., Brown, R., Feng, Y., Mekis, E. J., Milewska, E.,
Wan, H., and Wang, X. L.: Observed trends in Canada's climate and influence
of low-frequency variability modes, J. Climate, 28, 4545–4560, https://doi.org/10.1175/JCLI-D-14-00697.1, 2015.
Walker, X. J., Baltzer, J. L., Cumming, S. G., Day, N. J., Goetz, S.,
Johnstone, J. F., Potter, S., Rogers, B. M., Schuur, E. A. G., Turetsky, M.
R., and Mack, M. C.: Increasing wildfires threaten historic carbon sink of
boreal forest soils, Nature, 572, 520–523, https://doi.org/10.1038/s41586-019-1474-y, 2019.
Wallace, C. A. and Baltzer, J. L.: Tall shrubs mediate abiotic conditions
and plant communities at the treeline-arctic tundra ecotone, Ecosystems, 23,
828–841, https://doi.org/10.1007/s10021-019-00435-0, 2019.
Warren, R. K., Pappas, C., Helbig, M., Chasmer, L. E., Berg, A. A., Baltzer,
J. L., Quinton, W. L., and Sonnentag, O.: Minor contribution of overstorey
transpiration to landscape evapotranspiration in boreal permafrost
peatlands, Ecohydrology, 11, e1975, https://doi.org/10.1002/eco.1975, 2018.
Weedon, G. P., Gomes, S., Viterbo, P., Shuttleworth, W. J., Blyth, E.,
Österle, H., Adam, J. C., Bellouin, N., Boucher, O., and Best, M.:
Creation of the WATCH Forcing Data and Its Use to Assess Global and Regional
Reference Crop Evaporation over Land during the Twentieth Century, J.
Hydrometeorol., 12, 823–848, https://doi.org/10.1175/2011JHM1369.1, 2011.
Weedon, G. P., Balsamo, G., Bellouin, N., Gomes, S., Best, M. J., and
Viterbo, P.: The WFDEI meteorological forcing data set: WATCH Forcing Data
methodology applied to ERA-Interim reanalysis data, Water Resour. Res., 50,
7505–7514, https://doi.org/10.1002/2014WR015638, 2014.
Wheater, H. and Gober, P.: Water security in the Canadian Prairies: Science
and management challenges, Philos. T. Roy. Soc. A, 371, 20120409, https://doi.org/10.1098/rsta.2012.0409, 2013.
Wheater, H. S. and Gober, P.: Water security and the science agenda, Water
Resour. Res., 51, 5406–5424, https://doi.org/10.1002/2015WR016892, 2015.
Whitman, E., Parisien, M.-A., Thompson, D., and Flannigan, M.: Topoedaphic
and forest controls on post-fire vegetation assemblies are modified by fire
history and burn severity in the northwestern Canadian boreal forest,
Forests, 9, 151, https://doi.org/10.3390/f9030151, 2018.
Wilcox, E. J., Keim, D., de Jong, T., Walker, B., Sonnentag, O., Sniderhan,
A. E., Mann, P., and Marsh, P.: Tundra shrub expansion may amplify permafrost
thaw by advancing snowmelt timing, Arctic Sci., 5, 202–217, https://doi.org/10.1139/as-2018-0028, 2019.
Williams, T. J., Quinton, W. L., and Baltzer, J. L.: Linear disturbances on
discontinuous permafrost: Implications for thaw-induced changes to land
cover and drainage patterns, Environ. Res. Lett., 8, 025006, https://doi.org/10.1088/1748-9326/8/2/025006, 2013.
Williamson, C., Cameron, K. A., Cook, J. M., Zarsky, J. D., Stibal, M., and
Edwards, A.: Glacier algae: a dark past and a darker future, Front.
Microbiol., 10, 524, https://doi.org/10.3389/fmicb.2019.00524, 2019.
Williamson, M., Rowlandson, T. L., Berg, A. A., Roy, A., Toose, P., Derksen,
C., Arnold, L., and Tetlock, E.: L-band radiometry freeze/thaw validation
using air temperature and ground measurements, Remote Sens. Lett., 9,
403–410, https://doi.org/10.1080/2150704X.2017.1422872, 2018.
Woo, M. K. and Rouse, W. R.: MAGS Contribution to Hydrologic and Surface
Process Research, in: Cold Region Atmospheric and Hydrologic Studies, The Mackenzie GEWEX Experience, Vol. 2: Hydrologic Processes, edited by: Woo, M., Springer, Berlin, Heidelberg, 8–38, https://doi.org/10.1007/978-3-540-75136-6_2, 2008.
Woo, M.-K., Rouse, W. R., Stewart, R. E., and Stone, J. M. R.: The Mackenzie
GEWEX Study: A Contribution to Cold Region Atmospheric and Hydrologic
Sciences, in: Cold Region Atmospheric and Hydrologic Studies, The Mackenzie GEWEX Experience, Vol. 1: Atmospheric Dynamics, edited by: Woo, M. K., Springer-Verlag, Berlin, Heidelberg, 1–22, https://doi.org/10.1007/978-3-540-73936-4_1, 2008.
WWF – World Wildlife Fund: Canada's Rivers at Risk – Environmental Flows and Canada's Freshwater Future, WWF-Canada, Toronto, Ontario, Canada, 30 pp., available at: http://www.wwf.ca/?4820 (last access: 6 April 2021), 2009.
Yang, D., Shi, X., and Marsh, P.: Variability and extreme of Mackenzie River
daily discharge during 1973–2011, Quatern. Int., 380–381, 159–168, https://doi.org/10.1016/j.quaint.2014.09.023, 2015.
Yassin, F., Razavi, S., Wheater, H., Sapriza-Azuri, G., Davison, B., and
Pietroniro, A.: Enhanced identification of a hydrologic model using
streamflow and satellite water storage data: A multicriteria sensitivity
analysis and optimization approach, Hydrol. Process., 31, 3320–3333, https://doi.org/10.1002/hyp.11267, 2017.
Yassin, F., Razavi, S., Elshamy, M., Davison, B., Sapriza-Azuri, G., and
Wheater, H.: Representation and improved parameterization of reservoir
operation in hydrological and land-surface models, Hydrol. Earth Syst. Sci.,
23, 3735–3764, https://doi.org/10.5194/hess-23-3735-2019, 2019.
Young, A. M., Higuera, P. E., Duffy, P. A., and Hu, F. S.: Climatic thresholds shape northern high-latitude fire regimes and imply vulnerability
to future climate change, Ecography, 40, 606–617, https://doi.org/10.1111/ecog.02205, 2017.
Zemp, M., Frey, H., Gärtner-Roer, I., Nussbaumer, S., Hoelzle, M., Paul,
F., Haeberli, W., Denzinger, F., Ahlstrøm, A. P., Anderson, B.,
Bajracharya, S., Baroni, C., Braun, L. N., Cáceres, B. E., Casassa, G.,
Cobos, G., Dávila, L. R., Granados, H. D., Demuth, M. N., Espizua, L.,
Fischer, A., Fujita, K., Gadek, B., Ghazanfar, A., Ove Hagen, J., Holmlund,
P., Karimi, N., Li, Z., Pelto, M., Pitte, P., Popovnin, V. V., Portocarrero,
C. A., Prinz, R., Sangewar, C. V., Severskiy, I., Sigurđsson, O., Soruco,
A., Usubaliev, R., and Vincent, C: Historically unprecedented global glacier
decline in the early 21st century, J. Glaciol., 61, 745–762, https://doi.org/10.3189/2015JoG15J017, 2015.
Zha, T., Barr, A. G., van der Kamp, G., Black, T. A., McCaughey, J. H., and
Flanagan, L. B.: Interannual variation of evapotranspiration from forest and
grassland ecosystems in western Canada in relation to drought, Agr. Forest
Meteorol., 150, 1476–1484, https://doi.org/10.1016/j.agrformet.2010.08.003, 2010.
Zwieback, S., Westermann, S., Langer, M., Boike, J., Marsh, P., and Berg,
A.: Improving permafrost modeling by assimilating remotely sensed soil
moisture, Water Resour. Res., 55, 1814–1832, https://doi.org/10.1029/2018WR023247, 2019a.
Zwieback, S., Chang, Q., Marsh, P., and Berg, A.: Shrub tundra ecohydrology:
rainfall interception is a major component of the water balance, Environ. Res. Lett., 14, 055005, https://doi.org/10.1088/1748-9326/ab1049, 2019b.
Short summary
This article examines future changes in land cover and hydrological cycling across the interior of western Canada under climate conditions projected for the 21st century. Key insights into the mechanisms and interactions of Earth system and hydrological process responses are presented, and this understanding is used together with model application to provide a synthesis of future change. This has allowed more scientifically informed projections than have hitherto been available.
This article examines future changes in land cover and hydrological cycling across the interior...
