Articles | Volume 20, issue 9
https://doi.org/10.5194/tc-20-5199-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-20-5199-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
18 Sep 2026
Research article |
| 18 Sep 2026
| 18 Sep 2026
Air temperature partitioning of snow accumulation, erosion and melt: a regime shift occurring on Mt. Ortles (Eastern Italian Alps)
Tiziana Lazzarina Zendrini
CORRESPONDING AUTHOR
Department of Land, Environment, Agriculture and Forestry, University of Padua, Legnaro, Italy
Luca Carturan
Department of Land, Environment, Agriculture and Forestry, University of Padua, Legnaro, Italy
Michael Lehning
WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland
CRYOS, School of Architecture, Civil and Environmental Engineering, EPFL, Lausanne, Switzerland
Mathias Bavay
WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland
Federico Cazorzi
Department of Agrifood, Environmental and Animal Sciences, University of Udine, Udine, Italy
Paolo Gabrielli
Italian Glaciological Committee c/o University of Turin, Turin, Italy
current address: Oak Crest Academy, 2350 S Garey Ave, Pomona, CA 91766, USA
Nander Wever
WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland
Giancarlo Dalla Fontana
Department of Land, Environment, Agriculture and Forestry, University of Padua, Legnaro, Italy
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Preprint archived
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Unlocking the potential of melting calorimetry, traditionally confined to school labs, this paper demonstrates its application in the field for accurate measurement of liquid water content in snow. Dispelling misconceptions about measurement uncertainty, it provide a robust protocol and quantifies associated uncertainties. The findings endorse the broader adoption of melting calorimetry for quantification of snow liquid water content in operational context.
Luca Carturan, Fabrizio De Blasi, Roberto Dinale, Gianfranco Dragà, Paolo Gabrielli, Volkmar Mair, Roberto Seppi, David Tonidandel, Thomas Zanoner, Tiziana Lazzarina Zendrini, and Giancarlo Dalla Fontana
Earth Syst. Sci. Data, 15, 4661–4688, https://doi.org/10.5194/essd-15-4661-2023, https://doi.org/10.5194/essd-15-4661-2023, 2023
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This paper presents a new dataset of air, englacial, soil surface and rock wall temperatures collected between 2010 and 2016 on Mt Ortles, which is the highest summit of South Tyrol, Italy. Details are provided on instrument type and characteristics, field methods, and data quality control and assessment. The obtained data series are available through an open data repository. This is a rare dataset from a summit area lacking observations on permafrost and glaciers and their climatic response.
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The Cryosphere, 17, 2185–2209, https://doi.org/10.5194/tc-17-2185-2023, https://doi.org/10.5194/tc-17-2185-2023, 2023
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The Cryosphere, 17, 1601–1607, https://doi.org/10.5194/tc-17-1601-2023, https://doi.org/10.5194/tc-17-1601-2023, 2023
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Michelle L. Maclennan, Jan T. M. Lenaerts, Christine A. Shields, Andrew O. Hoffman, Nander Wever, Megan Thompson-Munson, Andrew C. Winters, Erin C. Pettit, Theodore A. Scambos, and Jonathan D. Wille
The Cryosphere, 17, 865–881, https://doi.org/10.5194/tc-17-865-2023, https://doi.org/10.5194/tc-17-865-2023, 2023
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The Cryosphere, 17, 639–651, https://doi.org/10.5194/tc-17-639-2023, https://doi.org/10.5194/tc-17-639-2023, 2023
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Varun Sharma, Franziska Gerber, and Michael Lehning
Geosci. Model Dev., 16, 719–749, https://doi.org/10.5194/gmd-16-719-2023, https://doi.org/10.5194/gmd-16-719-2023, 2023
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Most current generation climate and weather models have a relatively simplistic description of snow and snow–atmosphere interaction. One reason for this is the belief that including an advanced snow model would make the simulations too computationally demanding. In this study, we bring together two state-of-the-art models for atmosphere (WRF) and snow cover (SNOWPACK) and highlight both the feasibility and necessity of such coupled models to explore underexplored phenomena in the cryosphere.
Nicole Clerx, Horst Machguth, Andrew Tedstone, Nicolas Jullien, Nander Wever, Rolf Weingartner, and Ole Roessler
The Cryosphere, 16, 4379–4401, https://doi.org/10.5194/tc-16-4379-2022, https://doi.org/10.5194/tc-16-4379-2022, 2022
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Meltwater runoff is one of the main contributors to mass loss on the Greenland Ice Sheet that influences global sea level rise. However, it remains unclear where meltwater runs off and what processes cause this. We measured the velocity of meltwater flow through snow on the ice sheet, which ranged from 0.17–12.8 m h−1 for vertical percolation and from 1.3–15.1 m h−1 for lateral flow. This is an important step towards understanding where, when and why meltwater runoff occurs on the ice sheet.
Océane Hames, Mahdi Jafari, David Nicholas Wagner, Ian Raphael, David Clemens-Sewall, Chris Polashenski, Matthew D. Shupe, Martin Schneebeli, and Michael Lehning
Geosci. Model Dev., 15, 6429–6449, https://doi.org/10.5194/gmd-15-6429-2022, https://doi.org/10.5194/gmd-15-6429-2022, 2022
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This paper presents an Eulerian–Lagrangian snow transport model implemented in the fluid dynamics software OpenFOAM, which we call snowBedFoam 1.0. We apply this model to reproduce snow deposition on a piece of ridged Arctic sea ice, which was produced during the MOSAiC expedition through scan measurements. The model appears to successfully reproduce the enhanced snow accumulation and deposition patterns, although some quantitative uncertainties were shown.
Francesca Carletti, Adrien Michel, Francesca Casale, Alice Burri, Daniele Bocchiola, Mathias Bavay, and Michael Lehning
Hydrol. Earth Syst. Sci., 26, 3447–3475, https://doi.org/10.5194/hess-26-3447-2022, https://doi.org/10.5194/hess-26-3447-2022, 2022
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High Alpine catchments are dominated by the melting of seasonal snow cover and glaciers, whose amount and seasonality are expected to be modified by climate change. This paper compares the performances of different types of models in reproducing discharge among two catchments under present conditions and climate change. Despite many advantages, the use of simpler models for climate change applications is controversial as they do not fully represent the physics of the involved processes.
David N. Wagner, Matthew D. Shupe, Christopher Cox, Ola G. Persson, Taneil Uttal, Markus M. Frey, Amélie Kirchgaessner, Martin Schneebeli, Matthias Jaggi, Amy R. Macfarlane, Polona Itkin, Stefanie Arndt, Stefan Hendricks, Daniela Krampe, Marcel Nicolaus, Robert Ricker, Julia Regnery, Nikolai Kolabutin, Egor Shimanshuck, Marc Oggier, Ian Raphael, Julienne Stroeve, and Michael Lehning
The Cryosphere, 16, 2373–2402, https://doi.org/10.5194/tc-16-2373-2022, https://doi.org/10.5194/tc-16-2373-2022, 2022
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Based on measurements of the snow cover over sea ice and atmospheric measurements, we estimate snowfall and snow accumulation for the MOSAiC ice floe, between November 2019 and May 2020. For this period, we estimate 98–114 mm of precipitation. We suggest that about 34 mm of snow water equivalent accumulated until the end of April 2020 and that at least about 50 % of the precipitated snow was eroded or sublimated. Further, we suggest explanations for potential snowfall overestimation.
Paolo Gabrielli, Theo Manuel Jenk, Michele Bertó, Giuliano Dreossi, Daniela Festi, Werner Kofler, Mai Winstrup, Klaus Oeggl, Margit Schwikowski, Barbara Stenni, and Carlo Barbante
Clim. Past Discuss., https://doi.org/10.5194/cp-2022-20, https://doi.org/10.5194/cp-2022-20, 2022
Revised manuscript not accepted
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We present a methodology that reduces the chronological uncertainty of an Alpine ice core record from the glacier Alto dell’Ortles, Italy. This chronology will allow the constraint of the Holocene climatic and environmental histories emerging from this archive of Central Europe. This method will allow to obtain accurate chronologies also from other ice cores from-low latitude/high-altitude glaciers that typically suffer from larger dating uncertainties compared with well dated polar records.
Joel Fiddes, Kristoffer Aalstad, and Michael Lehning
Geosci. Model Dev., 15, 1753–1768, https://doi.org/10.5194/gmd-15-1753-2022, https://doi.org/10.5194/gmd-15-1753-2022, 2022
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This study describes and evaluates a new downscaling scheme that addresses the need for hillslope-scale atmospheric forcing time series for modelling the local impact of regional climate change on the land surface in mountain areas. The method has a global scope and is able to generate all model forcing variables required for hydrological and land surface modelling. This is important, as impact models require high-resolution forcings such as those generated here to produce meaningful results.
Adrien Michel, Bettina Schaefli, Nander Wever, Harry Zekollari, Michael Lehning, and Hendrik Huwald
Hydrol. Earth Syst. Sci., 26, 1063–1087, https://doi.org/10.5194/hess-26-1063-2022, https://doi.org/10.5194/hess-26-1063-2022, 2022
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This study presents an extensive study of climate change impacts on river temperature in Switzerland. Results show that, even for low-emission scenarios, water temperature increase will lead to adverse effects for both ecosystems and socio-economic sectors throughout the 21st century. For high-emission scenarios, the effect will worsen. This study also shows that water seasonal warming will be different between the Alpine regions and the lowlands. Finally, efficiency of models is assessed.
Mathias Bavay, Michael Reisecker, Thomas Egger, and Daniela Korhammer
Geosci. Model Dev., 15, 365–378, https://doi.org/10.5194/gmd-15-365-2022, https://doi.org/10.5194/gmd-15-365-2022, 2022
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Most users struggle with the configuration of numerical models. This can be improved by relying on a GUI, but this requires a significant investment and a specific skill set and does not fit with the daily duties of model developers, leading to major maintenance burdens. Inishell generates a GUI on the fly based on an XML description of the required configuration elements, making maintenance very simple. This concept has been shown to work very well in our context.
Cited articles
Adler, S.: Das Klima von Tirol-Südtirol-Belluno: 1981–2010; Vergangenheit–Gegenwart–Zukunft, Zentralanstalt für Meteorologie und Geodynamik, Südtirol Abteilung Brand- und Zivilschutz, Bozen, 102, https://www.provinz.bz.it/wetter/download/Das_Klima_von_Tirol-Suedtirol-Belluno.pdf (last access: 16 September 2026), 2015.
Avanzi, F., Ercolani, G., Gabellani, S., Cremonese, E., Pogliotti, P., Filippa, G., Morra di Cella, U., Ratto, S., Stevenin, H., Cauduro, M., and Juglair, S.: Learning about precipitation lapse rates from snow course data improves water balance modeling, Hydrol. Earth Syst. Sci., 25, 2109–2131, https://doi.org/10.5194/hess-25-2109-2021, 2021.
Ayala, A., Pellicciotti, F., and Shea, J. M.: Modeling 2 m air temperatures over mountain glaciers: Exploring the influence of katabatic cooling and external warming, J. Geophys. Res., 120, 3139–3157, https://doi.org/10.1002/2015JD023137, 2015.
Bartelt, P. and Lehning, M.: A physical SNOWPACK model for the Swiss avalanche warning, Part I: Numerical model, Cold Reg. Sci. Technol., 35, 123–145, 2002.
Bavay, M. and Egger, T.: MeteoIO 2.4.2: a preprocessing library for meteorological data, Geosci. Model Dev., 7, 3135–3151, https://doi.org/10.5194/gmd-7-3135-2014, 2014.
Bavay, M., Lehning, M., Jonas, T., and Löwe, H.: Simulations of future snow cover and discharge in Alpine headwater catchments, Hydrol. Process., 23, 95–108, https://doi.org/10.1002/hyp.7195, 2009.
Bavay, M., Grünewald, T., and Lehning, M.: Response of snow cover and runoff to climate change in high Alpine catchments of Eastern Switzerland, Adv. Water Resour., 55, 4–16, https://doi.org/10.1016/j.advwatres.2012.12.009, 2013.
Beniston, M.: The 2003 heat wave in Europe: A shape of things to come? An analysis based on Swiss climatological data and model simulations, Geophys. Res. Lett., 31, L02202, https://doi.org/10.1029/2003GL018857, 2004.
Benn, D. I. and Evans, D. J. A.: Glaciers and Glaciation, 2nd edn., Routledge, https://doi.org/10.4324/9780203785010, 2014.
Bohleber, P.: Alpine Ice Cores as Climate and Environmental Archives, in: Oxford Research Encyclopedia of Climate Science, edited by: Bohleber, P., Oxford University Press, https://doi.org/10.1093/acrefore/9780190228620.013.743, 2019.
Brunetti, M., Lentini, G., Maugeri, M., Nanni, T., Auer, I., Bohm, R., and Schoner, W.: Climate variability and change in the Greater Alpine Region over the last two centuries based on multi-variable analysis, Int. J. Climatol., 29, 2197–2225, https://doi.org/10.1002/joc.1857, 2009.
Capt, M., Bosson, J. B., Fischer, M., Micheletti, N., and Lambiel, C.: Decadal evolution of a very small heavily debris-covered Glacier in an Alpine permafrost environment, J. Glaciol., 62, 535–551, https://doi.org/10.1017/jog.2016.56, 2016.
Carrivick, J. L., Berry, K., Geilhausen, M., James, W. H. M., Williams, C., Brown, L. E., Rippin, D. M., and Carver, S. J.: Decadal-Scale Changes of the Ödenwinkelkees, Central Austria, Suggest Increasing Control of Topography and Evolution Towards Steady State, Geogr. Ann. A, 97, 543–562, https://doi.org/10.1111/geoa.12100, 2015.
Carturan, L.: Mass balance, stable isotopes and pollen data from 1997 to 2014 on Mt. Ortles (Eastern European Alps), Zenodo [data set], https://doi.org/10.5281/zenodo.15669722, 2025.
Carturan, L., Dalla Fontana, G., and Borga, M.: Estimation of winter precipitation in a high-altitude catchment of the Eastern Italian Alps: validation by means of glacier mass balance observations, Geogr. Fis. e Din. Quat., 35, 37–48, https://doi.org/10.4461/GFDQ.2012.35.4, 2012.
Carturan, L., Filippi, R., Seppi, R., Gabrielli, P., Notarnicola, C., Bertoldi, L., Paul, F., Rastner, P., Cazorzi, F., Dinale, R., and Dalla Fontana, G.: Area and volume loss of the glaciers in the Ortles-Cevedale group (Eastern Italian Alps): controls and imbalance of the remaining glaciers, The Cryosphere, 7, 1339–1359, https://doi.org/10.5194/tc-7-1339-2013, 2013.
Carturan, L., De Blasi, F., Cazorzi, F., Zoccatelli, D., Bonato, P., Borga, M., and Dalla Fontana, G.: Relevance and scale dependence of hydrological changes in glacierized catchments: insights from historical data series in the eastern Italian Alps, Water, 11, 89, https://doi.org/10.3390/w11010089, 2019.
Carturan, L., De Blasi, F., Dinale, R., Dragà, G., Gabrielli, P., Mair, V., Seppi, R., Tonidandel, D., Zanoner, T., Zendrini, T. L., and Dalla Fontana, G.: Modern air, englacial and permafrost temperatures at high altitude on Mt Ortles (3905 m a.s.l.), in the eastern European Alps, Earth Syst. Sci. Data, 15, 4661–4688, https://doi.org/10.5194/essd-15-4661-2023, 2023.
Carturan, L., Ihle, A. C., Cazorzi, F., Zendrini, T. L., De Blasi, F., Dalla Fontana, G., Dreossi, G., Festi, D., Mark, B., Oeggl, K. D., Seppi, R., Stenni, B., and Gabrielli, P.: Reconstruction of mass balance and firn stratigraphy during the 1996–2011 warm period at high altitude on Mount Ortles, Eastern Alps: a comparison of modelled and ice core results, The Cryosphere, 19, 3443–3458, https://doi.org/10.5194/tc-19-3443-2025, 2025.
Clark, M. P., Hendrikx, J., Slater, A. G., Kavetski, D., Anderson, B., Cullen, N. J., Woods, R., Zammit, C., and Schmidt, J.: Representing spatial variability of snow water equivalent in hydrologic and land-surface models: A review, Water Resour. Res., 47, W07539, https://doi.org/10.1029/2011WR010745, 2011.
Cremona, A., Huss, M., Landmann, J. M., Schwaizer, G., Paul, F., Farinotti, D.: Constraining sub-seasonal glacier mass balance in the Swiss Alps using Sentinel-2-derived snow-cover observations, J. Glaciol., 71, e25, https://doi.org/10.1017/jog.2025.1, 2025.
De Blasi, F.: Scale dependence of hydrological effects from different climatic conditions on glacierized catchments, PhD thesis, University of Padova, https://www.research.unipd.it/handle/11577/3427154 (last access: 16 September 2026), 2018.
De Marco, J., Carturan, L., Piermattei, L., Cucchiaro, S., Moro, D., Dalla Fontana, G., and Cazorzi, F.: Minor imbalance of the lowermost Italian glacier from 2006 to 2019, Water, 12, 2503, https://doi.org/10.3390/w12092503, 2020.
Dumont, M., Monteiro, D., Filhol, S., Gascoin, S., Marty, C., Hagenmuller, P., Morin, S., Choler, P., and Thuiller, W.: The European Alps in a changing climate: physical trends and impacts, C. R. Géosci., 357, 25–42, https://doi.org/10.5802/crgeos.288, 2025.
Evans, M. N., Tolwinski-Ward, S. E., Thompson, D. M., and Anchukaitis, K. J.: Applications of proxy system modeling in high resolution paleoclimatology, Quaternary Sci. Rev., 76, 16–28, https://doi.org/10.1016/j.quascirev.2013.05.024, 2013.
Fierz, C., Armstrong, R. L., Durand, Y., Etchevers, P., Greene, E., McClung, D. M., Nishimura, K., Satyawali, P. K., and Sokratov, S. A.: The International Classification for Seasonal Snow on the Ground. IHP-VII Technical Documents in Hydrology No. 83, IACS Contribution No. 1, UNESCO-IHP, Paris, https://unesdoc.unesco.org/ark:/48223/pf0000186462 (last access: 16 September 2026), 2009.
Gabrielli, P., Carturan, L., Gabrieli, J., Dinale, R., Krainer, K., Hausmann, H., Davis, M., Zagorodnov, V., Seppi, R., Barbante, C., Fontana, G. D., and Thompson, L. G.: Atmospheric warming threatens the untapped glacial archive of Ortles mountain, South Tyrol, J. Glaciol., 56, 843–853, https://doi.org/10.3189/002214310794457263, 2010.
Gabrielli, P., Barbante, C., Carturan, L., Cozzi, G., Dalla Fontana, G., Dinale, R., Draga, G., Gabrieli, J., Kehrwald, N., Mair, V., Mikhalenko, V. N., Piffer, G., Rinaldi, M., Seppi, R., Spolaor, A., Thompson, L. G., and Tonidandel, D.: Discovery of cold ice in a new drilling site in the Eastern European Alps, Geogr. Fis. Din. Quat., 35, 101–105, https://doi.org/10.4461/GFDQ.2012.35.10, 2012.
Gabrielli, P., Barbante, C., Bertagna, G., Bertó, M., Binder, D., Carton, A., Carturan, L., Cazorzi, F., Cozzi, G., Dalla Fontana, G., Davis, M., De Blasi, F., Dinale, R., Dragà, G., Dreossi, G., Festi, D., Frezzotti, M., Gabrieli, J., Galos, S. P., Ginot, P., Heidenwolf, P., Jenk, T. M., Kehrwald, N., Kenny, D., Magand, O., Mair, V., Mikhalenko, V., Lin, P. N., Oeggl, K., Piffer, G., Rinaldi, M., Schotterer, U., Schwikowski, M., Seppi, R., Spolaor, A., Stenni, B., Tonidandel, D., Uglietti, C., Zagorodnov, V., Zanoner, T., and Zennaro, P.: Age of the Mt. Ortles ice cores, the Tyrolean Iceman and glaciation of the highest summit of South Tyrol since the Northern Hemisphere Climatic Optimum, The Cryosphere, 10, 2779–2797, https://doi.org/10.5194/tc-10-2779-2016, 2016.
Gabrielli, P., Jenk, T. M., Bertó, M., Dreossi, G., Festi, D., Kofler, W., Winstrup, M., Oeggl, K., Schwikowski, M., Stenni, B., and Barbante, C.: A multimillennial Alpine ice core chronology synchronized with an accurately dated Arctic Pb record, Clim. Past, 22, 1037–1055, https://doi.org/10.5194/cp-22-1037-2026, 2026.
Gobiet, A., Kotlarski, S., Beniston, M., Heinrich, G., Rajczak, J., and Stoffel, M.: 21st century climate change in the European Alps – A review, Sci. Total Environ., 493, 1138–1151, https://doi.org/10.1016/j.scitotenv.2013.07.050, 2014.
Haeberli, W. and Alean, J.: Temperature and accumulation of high altitude firn in the Alps, Ann. Glaciol., 6, 161–163, https://doi.org/10.3189/1985AoG6-1-161-163, 1985.
He, S. and Ohara, N.: A new formula for estimating the threshold wind speed for snow movement, J. Adv. Model. Earth. Sy., 9, 2514–2525, https://doi.org/10.1002/2017MS000982, 2017.
Hock, R. and Huss, M.: Glaciers and climate change, Chapter 9, in: Climate Change, 3rd edn., edited by: Letcher, T. M., Elsevier, 157–176, ISBN 978-0-12-821575-3, https://doi.org/10.1016/B978-0-12-821575-3.00009-8, 2021.
Hock, R., Hutchings, J. K., and Lehning, M.: Grand challenges in cryospheric sciences: Toward better predictability of glaciers, snow and sea ice, Front. Earth Sci., 5, 64, https://doi.org/10.3389/feart.2017.00064, 2017.
Houze, R. A.: Orographic effects on precipitating clouds, Rev. Geophys., 50, https://doi.org/10.1029/2011RG000365, 2012.
Humlum, O.: Glacier behaviour and the influence of upper-air conditions during the Little Ice Age in Disko, central West Greenland, Geogr. Tidsskr.-Dan., 87, 1–12, https://doi.org/10.1080/00167223.1987.10649234, 1987.
Huss, M., Bauder, A., Funk, M., and Hock, R.: Determination of the seasonal mass balance of four Alpine glaciers since 1865, J. Geophys. Res., 113, F01015, https://doi.org/10.1029/2007JF000803, 2008.
IPCC: Climate Change 2022: Impacts, Adaptation, and Vulnerability, Contribution of Working Group II to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge University Press, Cambridge, UK, New York, NY, USA, 3056 pp., https://doi.org/10.1017/9781009325844, 2022.
Jackson, P. S. and Hunt, J. C. R.: Turbulent wind flow over a low hill, Q. J. Roy. Meteor. Soc., 101, 929–955, https://doi.org/10.1002/qj.49710143015, 1975.
Jacquemart, M., Weber, S., Chiarle, M., Chmiel, M., Cicoira, A., Corona, C., Eckert, N., Gaume, J., Giacona, F., Hirschberg, J., Kaitna, R., Magnin, F., Mayer, S., Moos, C., van Herwijnen, A., and Stoffel, M.: Detecting the impact of climate change on alpine mass movements in observational records from the European Alps, Earth-Sci. Rev., 258, 104886, https://doi.org/10.1016/j.earscirev.2024.104886, 2024.
Johnson, E. and Rupper, S.: An Examination of Physical Processes That Trigger the Albedo-Feedback on Glacier Surfaces and Implications for Regional Glacier Mass Balance Across High Mountain Asia, Front. Earth. Sci. (Lausanne), 8, https://doi.org/10.3389/feart.2020.00129, 2020.
Klok, E. J. and Oerlemans, J.: Modelled climate sensitivity of the mass balance of Morteratschgletscher and its dependence on albedo parameterization, Int. J. Climatol., 24, 231–245, https://doi.org/10.1002/joc.994, 2004.
Kochendorfer, J., Rasmussen, R., Wolff, M., Baker, B., Hall, M. E., Meyers, T., Landolt, S., Jachcik, A., Isaksen, K., Brækkan, R., and Leeper, R.: The quantification and correction of wind-induced precipitation measurement errors, Hydrol. Earth Syst. Sci., 21, 1973–1989, https://doi.org/10.5194/hess-21-1973-2017, 2017.
Konrad, H., Bohleber, P., Wagenbach, D., Vincent, C., and Eisen, O.: Determining the age distribution of Colle Gnifetti, Monte Rosa, Alps, by combining ice cores, ground-penetrating radar and a simple flow model, J. Glaciol., 59, 179–189, https://doi.org/10.3189/2013JoG12J072, 2013.
Kotlarski, S., Gobiet, A., Morin, S., Olefs, M., Rajczak, J., and Samacoïts, R.: 21st Century alpine climate change, Clim. Dynam., 60, 65–86, https://doi.org/10.1007/s00382-022-06303-3, 2023.
Lehning, M. and Fierz, C.: Assessment of snow transport in avalanche terrain, Cold Reg. Sci. Technol., 51, 240–252, https://doi.org/10.1016/j.coldregions.2007.05.012, 2008.
Lehning, M., Doorschot, J., and Bartelt, P.: A snowdrift index based on SNOWPACK model calculations, Ann. Glaciol., 31, 382–386, https://doi.org/10.3189/172756400781819770, 2000.
Lehning, M., Bartelt, P., Brown, B., and Fierz, C.: A physical SNOWPACK model for the Swiss avalanche warning: Part III: meteorological forcing, thin layer formation and evaluation, Cold Reg. Sci. Technol., 35, 169–184, https://doi.org/10.1016/S0165-232X(02)00072-1, 2002a.
Lehning, M., Bartelt, P., Brown, B., Fierz, C., and Satyawali, P.: A physical SNOWPACK model for the Swiss avalanche warning: Part II. Snow microstructure, Cold Reg. Sci. Technol., 35, 147–167, https://doi.org/10.1016/S0165-232X(02)00073-3, 2002b.
Lehning, M., Löwe, H., Ryser, M., and Raderschall, N.: Inhomogeneous precipitation distribution and snow transport in steep terrain, Water Resour. Res., 44, W07404, https://doi.org/10.1029/2007WR006545, 2008.
Li, L. and Pomeroy, J. W.: Probability of occurrence of blowing snow, J. Geophys. Res.-Atmos., 102, 21955–21964, https://doi.org/10.1029/97JD01522, 1997a.
Li, L. and Pomeroy, J. W.: Estimates of threshold wind speeds for snow transport using meteorological data, J. Appl. Meteorol. Clim., 36, 205–213, https://doi.org/10.1175/1520-0450(1997)036<0205:EOTWSF>2.0.CO;2, 1997b.
Liston, G. E., Polashenski, C., Rösel, A., Itkin, P., King, J., Merkouriadi, I., and Haapala, J.: A distributed snow-evolution model for sea-ice applications (SnowModel), J. Geophys. Res.-Oceans, 123, 3786–3810, https://doi.org/10.1002/2017JC013706, 2018.
Luetschg, M., Lehning, M., and Haeberli, W.: A sensitivity study of factors influencing warm/thin permafrost in the Swiss Alps, J. Glaciol., 54, 696–704, https://doi.org/10.3189/002214308786570881, 2008.
Meirold-Mautner, I. and Lehning, M.: Measurements and model calculations of the solar shortwave fluxes in snow on Summit, Greenland, Ann. Glaciol., 38, 279–284, https://doi.org/10.3189/172756404781814753, 2004.
Mott, R., Schirmer, M., Bavay, M., Grünewald, T., and Lehning, M.: Understanding snow-transport processes shaping the mountain snow-cover, The Cryosphere, 4, 545–559, https://doi.org/10.5194/tc-4-545-2010, 2010.
Mott, R., Scipión, D., Schneebeli, M., Dawes, N., Berne, A., and Lehning, M.: Orographic effects on snow deposition patterns in mountainous terrain, J. Geophys. Res.-Atmos., 119, 1419–1439, https://doi.org/10.1002/2013JD019880, 2014.
Mott, R., Vionnet, V., and Grünewald, T.: The seasonal snow cover dynamics: review on wind-driven snow transport and sublimation, Front. Earth Sci., 6, 197, https://doi.org/10.3389/feart.2018.00197, 2018.
Obleitner, F. and Lehning, M.: Measurement and simulation of snow and superimposed ice at the Kongsvegen glacier, Svalbard (Spitzbergen), J. Geophys. Res.-Atmos., 109, https://doi.org/10.1029/2003jd003945, 2004.
Panofsky, H. A. and Zhao, M.: Characteristics of wind profiles over complex terrain, J. Wind Eng. Ind. Aerodyn., 15, 177–183, https://doi.org/10.1016/0167-6105(83)90188-5, 1983.
Pellegrini, C. C. and Bodstein, G. C. R.: The height of maximum speed-up in the atmospheric boundary layer flow over low hills, J. Braz. Soc. Mech. Sci., 26, 249–259, https://doi.org/10.1590/S1678-58782004000300001, 2004.
Pepin, N., Apple, M., Knowles, J., Terzago, S., Arnone, E., Hänchen, L., Napoli, A., Potter, E., Steiner, J., Williamson, S. N., Ahrens, B., Dhar, T., Dimri, A. P., Palazzi, E., Rameshan, A., Salzmann, N., Shahgedanova, M., de Deus Vidal, J., and Zardi, D.: Elevation-dependent climate change in mountain environments, Nature Reviews Earth and Environment, 6, 772–788, https://doi.org/10.1038/s43017-025-00740-4, 2025.
Raderschall, N., Lehning, M., and Schär, C.: Fine-scale modeling of the boundary layer wind field over steep topography, Water Resour. Res., 44, https://doi.org/10.1029/2007WR006544, 2008.
Rasmus, S., Räisänen, J., and Lehning, M.: Estimating snow conditions in Finland in the late 21st century using the SNOWPACK model with regional climate scenario data as input, Ann. Glaciol., 38, 238–244, https://doi.org/10.3189/172756404781814843, 2004.
Rasmussen, R., Baker, B., Kochendorfer, J., Meyers, T., Landolt, S., Fischer, A. P., Black, J., Thériault, J. M., Kucera, P., Gochis, D., Smith, C., Nitu, R., Hall, M., Ikeda, K., and Gutmann, E.: 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.
Roe, G. H.: Orographic precipitation, Annu. Rev. Earth Pl. Sc., 33, 645–671, https://doi.org/10.1146/annurev.earth.33.092203.122541, 2005.
Schäfer, M., Möller, M., Zwinger, T., and Moore, J. C.: Dynamic modelling of future glacier changes: mass-balance/elevation feedback in projections for the Vestfonna Ice Cap, Nordaustlandet, Svalbard, J. Glaciol., 61, 1121–1136, https://doi.org/10.3189/2015JoG14J184, 2015.
Schmidt, R. A.: Threshold wind-speeds and elastic impact in snow transport, J. Glaciol., 26, 453–467, https://doi.org/10.3189/S0022143000010972, 1980.
Schmucki, E., Marty, C., Fierz, C., and Lehning, M.: Simulations of 21st century snow response to climate change in Switzerland from a set of RCMs, Int. J. Climatol., 35, https://doi.org/10.1002/joc.4205, 2015.
Schuler, T. V., Hock, R., Jackson, M., Elvehøy, H., Braun, M., Brown, I., and Hagen, J.-O.: Distributed mass-balance and climate sensitivity modelling of Engabreen, Ann. Glaciol., 42, 395–401, https://doi.org/10.3189/172756405781812998, 2005.
Shaw, T. E., Buri, P., McCarthy, M., Miles, E. S., Ayala, Á., and Pellicciotti, F.: The Decaying Near-Surface Boundary Layer of a Retreating Alpine Glacier, Geophys. Res. Lett., 50, https://doi.org/10.1029/2023gl103043, 2023.
Shaw, T. E., Miles, E. S., McCarthy, M., Buri, P., Guyennon, N., Salerno, F., Carturan, L., Brock, B., and Pellicciotti, F.: Mountain glaciers recouple to atmospheric warming over the twenty-first century, Nat. Clim. Change, 15, 1212–1218, https://doi.org/10.1038/s41558-025-02449-0, 2025.
Stiperski, I. and Rotach, M. W.: On the Measurement of Turbulence over Complex Mountainous Terrain, Bound.-Lay. Meteorol, 159, 97–121, https://doi.org/10.1007/s10546-015-0103-z , 2016.
Taylor, P. A., Mason, P. J., and Bradley, E. F.: Boundary-layer flow over low hills, Bound.-Lay. Meteorol., 39, 107–132, https://doi.org/10.1007/BF00121870, 1987.
Wever, N., Keenan, E., Amory, C., Lehning, M., Sigmund, A., Huwald, H., and Lenaerts, J. T. M.: Observations and simulations of new snow density in the drifting snow-dominated environment of Antarctica, J. Glaciol., 69, 823–840, https://doi.org/10.1017/jog.2022.102, 2023.
Zemp, M., Thibert, E., Huss, M., Stumm, D., Rolstad Denby, C., Nuth, C., Nussbaumer, S. U., Moholdt, G., Mercer, A., Mayer, C., Joerg, P. C., Jansson, P., Hynek, B., Fischer, A., Escher-Vetter, H., Elvehøy, H., and Andreassen, L. M.: Reanalysing glacier mass balance measurement series, The Cryosphere, 7, 1227–1245, https://doi.org/10.5194/tc-7-1227-2013, 2013.
Zhao, F., Long, D., Li, X., Huang, Q., and Han, P.: Rapid glacier mass loss in the Southeastern Tibetan Plateau since the year 2000 from satellite observations, Remote Sens. Environ., 270, 112853, https://doi.org/10.1016/J.RSE.2021.112853, 2022.
Short summary
By combining in situ mass balance data with a physics‐based snow model at Mt. Ortles, in the Italian Alps, we investigate snow accumulation, erosion and melt processes, and their sensitivity to air temperature. We found that wind erosion is currently the major ablation process at this high-elevation site, whereas melt plays a minor role. Quickly rising air temperature is affecting this partitioning and suggests a future shift from an erosion-dominated to a melt-dominated mass balance regime.
By combining in situ mass balance data with a physics‐based snow model at Mt. Ortles, in the...
