Articles | Volume 26, issue 10
https://doi.org/10.5194/hess-26-2605-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-26-2605-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Recent hydrological response of glaciers in the Canadian Rockies to changing climate and glacier configuration
Dhiraj Pradhananga
CORRESPONDING AUTHOR
Centre for Hydrology, University of Saskatchewan, 1151 Sidney Street, Canmore, Alberta T1W 3G1, Canada
Department of Meteorology, Tri-Chandra Multiple Campus, Tribhuvan University, Kathmandu, Nepal
The Small Earth Nepal, P.O. Box 20533, Kathmandu, Nepal
John W. Pomeroy
Centre for Hydrology, University of Saskatchewan, 1151 Sidney Street, Canmore, Alberta T1W 3G1, Canada
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Richard Essery, Hyungjun Kim, Libo Wang, Paul Bartlett, Aaron Boone, Claire Brutel-Vuilmet, Eleanor Burke, Matthias Cuntz, Bertrand Decharme, Emanuel Dutra, Xing Fang, Yeugeniy Gusev, Stefan Hagemann, Vanessa Haverd, Anna Kontu, Gerhard Krinner, Matthieu Lafaysse, Yves Lejeune, Thomas Marke, Danny Marks, Christoph Marty, Cecile B. Menard, Olga Nasonova, Tomoko Nitta, John Pomeroy, Gerd Schädler, Vladimir Semenov, Tatiana Smirnova, Sean Swenson, Dmitry Turkov, Nander Wever, and Hua Yuan
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Cited articles
Barry, R. G.:
The status of research on glaciers and global glacier recession: a review, Prog. Phys. Geog., 30, 285–306, https://doi.org/10.1191/0309133306pp478ra, 2006.
Bolch, T., Menounos, B., and Wheate, R.:
Landsat-based inventory of glaciers in western Canada, 1985–2005, Remote Sens. Environ., 114, 127–137, https://doi.org/10.1016/j.rse.2009.08.015, 2010.
Casassa, G., López, P., Pouyaud, B., and Escobar, F.:
Detection of changes in glacial run-off in alpine basins: Examples from North America, the Alps, central Asia and the Andes, Hydrol. Process., 41, 31–41, https://doi.org/10.1002/hyp.7194, 2009.
Castellazzi, P., Burgess, D., Rivera, A., Huang, J., Longuevergne, L., and Demuth, M. N.:
Glacial Melt and Potential Impacts on Water Resources in the Canadian Rocky Mountains, Water Resour. Res., 55, 10191–10217, https://doi.org/10.1029/2018WR024295, 2019.
Centre for Hydrology: CRHM: The Cold Regions Hydrological Mode, Centre for Hydrology [code], https://research-groups.usask.ca/hydrology/modelling/crhm.php#TechnicalDetails, last access: 9 May 2022.
Chernos, M., MacDonald, R. J., Nemeth, M. W., and Craig, J. R.:
Current and future projections of glacier contribution to streamflow in the upper Athabasca River Basin, Can. Water Resour. J./Rev. Can. des ressources hydriques, 45, 324–344, https://doi.org/10.1080/07011784.2020.1815587, 2020.
Clarke, G. K. C., 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.
Comeau, L. E. L., Pietroniro, A., and Demuth, M. N.:
Glacier contribution to the North and South Saskatchewan Rivers, Hydrol. Process., 23, pp. 2640–2653, 2009.
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.
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. M., 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. J., Park, B. K., Peubey, C., de Rosnay, P., Tavolato, C., Thépaut, J. N., 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. N. and Keller, R.:
An assessment of the mass balance of Peyto glacier (1966-1995) and its relation to Recent and past-century climatic variability, in: Peyto Glacier: One Century of Science, edited by: Demuth, M. N., Munro, D. S., and Young, G. J., National Hydrology Research Institute, Saskatoon, Saskatchewan, pp. 83–132, 2006.
de Woul, M., Hock, R., Braun, M., Thorsteinsson, T., Jóhannesson, T., and Halldórsdóttir, S.:
Firn layer impact on glacial runoff: a case study at Hofsjökull, Iceland, Hydrol. Process., 20, 2171–2185, https://doi.org/10.1002/hyp.6201, 2006.
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.
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.
Fountain, A. G. and Tangborn, W. V.:
The effect of glaciers on streamflow variations, Water Resour. Res., 21, 579–586, https://doi.org/10.1029/WR021i004p00579, 1985.
Gudmundsson, L., Bremnes, J. B., Haugen, J. E., and Engen-Skaugen, T.: Technical Note: Downscaling RCM precipitation to the station scale using statistical transformations – a comparison of methods, Hydrol. Earth Syst. Sci., 16, 3383–3390, https://doi.org/10.5194/hess-16-3383-2012, 2012.
Harder, P. and Pomeroy, J. W.:
Estimating precipitation phase using a psychrometric energy balance method, Hydrol. Process., 27, 1901–1914, https://doi.org/10.1002/hyp.9799, 2013.
Harder, P., Pomeroy, J. W., and Westbrook, C. J.:
Hydrological resilience of a Canadian Rockies headwaters basin subject to changing climate, extreme weather, and forest management, Hydrol. Process., 29, 3905–3924, https://doi.org/10.1002/hyp.10596, 2015.
Hopkinson, C. and Young, G. J.:
The effect of glacier wastage on the flow of the Bow River at Banff, Alberta, 1951–1993, Hydrol. Process., 12, 1745–1762, https://doi.org/10.1002/(SICI)1099-1085(199808/09)12:10/11<1745::AID-HYP692>3.0.CO;2-S, 1998.
Hynčica, M. and Huth, R.:
Long-term changes in precipitation phase in Europe in cold half year, Atmos. Res., 227, 79–88, https://doi.org/10.1016/j.atmosres.2019.04.032, 2019.
Intsiful, A. and Ambinakudige, S.:
Glacier Cover Change Assessment of the Columbia Icefield in the Canadian Rocky Mountains, Canada (1985–2018), Geosciences, 11, 19, https://doi.org/10.3390/GEOSCIENCES11010019, 2021.
Kehrl, L. M., Hawley, R. L., Osterberg, E. C., Winski, D. A., and Lee, A. P.:
Volume loss from lower Peyto Glacier, Alberta, Canada, between 1966 and 2010, J. Glaciol., 60, 51–56, https://doi.org/10.3189/2014JoG13J039, 2014.
Kienzle, S. W., Nemeth, M. W., Byrne, J. M., and Macdonald, R. J.:
Simulating the hydrological impacts of climate change in the upper North Saskatchewan River basin, Alberta, Canada, J. Hydrol., 412–413, 76–89, https://doi.org/10.1016/j.jhydrol.2011.01.058, 2012.
Krogh, S. A. and Pomeroy, J. W.:
Recent changes to the hydrological cycle of an Arctic basin at the tundra–taiga transition, Hydrol. Earth Syst. Sci., 22, 3993–4014, https://doi.org/10.5194/hess-22-3993-2018, 2018.
Marks, D., Winstral, A., Flerchinger, G., Reba, M., Pomeroy, J., Link, T., and Elder, K.:
Comparing Simulated and Measured Sensible and Latent Heat Fluxes over Snow under a Pine Canopy to Improve an Energy Balance Snowmelt Model, J. Hydrometeorol., 9, 1506–1522, https://doi.org/10.1175/2008JHM874.1, 2008.
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.
Moore, R. D., Fleming, S. W., Menounos, B., Wheate, R., Fountain, A., Stahl, K., Holm, K., and Jakob, M.:
Glacier change in western North America: influences on hydrology, geomorphic hazards and water quality, Hydrol. Process., 23, 42–61, https://doi.org/10.1002/hyp.7162, 2009.
Neupane, R. P., Adamowski, J. F., White, J. D., and Kumar, S.:
Future streamflow simulation in a snow-dominated Rocky Mountain headwater catchment, Hydrol. Res., 49, 1172–1190, https://doi.org/10.2166/NH.2017.024, 2018.
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.
Pradhananga, D. and Pomeroy, J. W.:
Diagnosing changes in glacier hydrology from physical principles using a hydrological model with snow redistribution, sublimation, firnification and energy balance ablation algorithms, J. Hydrol., 608, https://doi.org/10.1016/j.jhydrol.2022.127545, 2022.
Pradhananga, D., Pomeroy, J., Aubry-Wake, C., Munro, D., Shea, J., Demuth, M., Kirat, N., Menounos, B., and Mukherjee, K.: Hydrometeorological, glaciological and geospatial research data from the Peyto Glacier Research Basin in the Canadian Rockies, Federated Research Data Repository [data set], https://doi.org/10.20383/101.0259, 2020.
Pradhananga, D., Pomeroy, J. W., Aubry-Wake, C., Munro, D. S., Shea, J., Demuth, M. N., Kirat, N. H., Menounos, B., and Mukherjee, K.:
Hydrometeorological, glaciological and geospatial research data from the Peyto Glacier Research Basin in the Canadian Rockies, Earth Syst. Sci. Data, 13, 2875–2894, https://doi.org/10.5194/essd-13-2875-2021, 2021.
R Core Team:
R: A language and environment for statistical computing, R Foundation for Statistical Computing, Vienna, Australia, https://www.r-project.org/ (last access: 9 May 2022), 2017.
Reynolds, J. R. and Young, G. J.:
Changes in areal extent, elevation and volume of Athabasca Glacier, Alberta, Canada, as estimated from a series of maps produced between 1919 and 1979, Ann. Glaciol., 24, 60–65, 1997.
Riedel, J. L., Wilson, S., Baccus, W., Larrabee, M., Fudge, T. J., Fountain, A., and Riedel, C. J. L.:
Glacier status and contribution to streamflow in the Olympic Mountains, Washington, USA, J. Glaciol., 61, 8–16, https://doi.org/10.3189/2015JoG14J138, 2015.
Schiefer, E., Menounos, B., and Wheate, R.:
Recent volume loss of British Columbian glaciers, Canada, Geophys. Res. Lett., 34, 1–6, https://doi.org/10.1029/2007GL030780, 2007.
Sedgwick, J. K. and Henoch, W. E. S.:
1966 Peyto Glacier Map, Banff National Park, Alberta, Environment Canada, IWD 1010, ., 1975.
Stahl, K. and Moore, R. D.:
Influence of watershed glacier coverage on summer streamflow in British Columbia, Canada, Water Resour. Res., 42, 1–5, https://doi.org/10.1029/2006WR005022, 2006.
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.
Tennant, C., Menounos, B., Wheate, R., and Clague, J. J.:
Area change of glaciers in the Canadian Rocky Mountains, 1919 to 2006, The Cryosphere, 6, 1541–1552, https://doi.org/10.5194/tc-6-1541-2012, 2012.
Uppala, S. M., KÅllberg, P. W., Simmons, A. J., Andrae, U., Bechtold, V. D. C., Fiorino, M., Gibson, J. K., Haseler, J., Hernandez, A., Kelly, G. A., Li, X., Onogi, K., Saarinen, S., Sokka, N., Allan, R. P., Andersson, E., Arpe, K., Balmaseda, M. A., Beljaars, A. C. M., Berg, L. Van De, Bidlot, J., Bormann, N., Caires, S., Chevallier, F., Dethof, A., Dragosavac, M., Fisher, M., Fuentes, M., Hagemann, S., Hólm, E., Hoskins, B. J., Isaksen, L., Janssen, P. A. E. M., Jenne, R., Mcnally, A. P., Mahfouf, J.-F., Morcrette, J.-J., Rayner, N. A., Saunders, R. W., Simon, P., Sterl, A., Trenberth, K. E., Untch, A., Vasiljevic, D., Viterbo, P., and Woollen, J.:
The ERA-40 re-analysis, Q. J. Roy. Meteorol. Soc., 131, 2961–3012, https://doi.org/10.1256/qj.04.176, 2005.
Wilcoxon, F.:
Individual Comparisons by Ranking Methods, Biometrics Bull., 1, 80, https://doi.org/10.2307/3001968, 1945.
Short summary
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.
This study considers the combined impacts of climate and glacier changes due to recession on the...