Articles | Volume 16, issue 3
The Cryosphere, 16, 1031–1056, 2022
https://doi.org/10.5194/tc-16-1031-2022
The Cryosphere, 16, 1031–1056, 2022
https://doi.org/10.5194/tc-16-1031-2022
Research article
16 Mar 2022
Research article | 16 Mar 2022

A local model of snow–firn dynamics and application to the Colle Gnifetti site

Fabiola Banfi and Carlo De Michele

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A local model of snow-firn dynamics and application to Colle Gnifetti site
Fabiola Banfi and Carlo De Michele
The Cryosphere Discuss., https://doi.org/10.5194/tc-2020-357,https://doi.org/10.5194/tc-2020-357, 2021
Manuscript not accepted for further review
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Cited articles

Adhikary, S. P.: Inaugural address, in: Snow and glacier hydrology, edited by: Young, G. J.​​​​​​​, International Association of Hydrological Sciences (IAHS), Wallingford, Oxfordshire OX10 8BB, UK, ISBN 0-947571-83-3, 1993. a
Aizen, V. B., Aizen, E. M., and Melack, J. M.: Precipitation, melt and runoff in the northern Tien Shan, J. Hydrol., 186, 229–251, https://doi.org/10.1016/S0022-1694(96)03022-3, 1996. a
Alean, J., Haeberli, W., and Schädler, B.: Snow accumulation, firn temperature and solar radiation in the area of the Colle Gnifetti core drilling site (Monte Rosa, Swiss Alps): distribution patterns and interrelationships, Zeitschrift für Gletscherkunde und Glazialgeologie, 19, 131–147, 1983. a, b, c, d
Alley, R. B.: Firn densification by grain-boundary sliding: a first model, J. Phys. Colloques, 48, C1-249–C1-256​​​​​​​, https://doi.org/10.1051/jphyscol:1987135​​​​​​​, 1987. a
Alpert, P.: Mesoscale Indexing of the Distribution of Orographic Precipitation over High Mountains, J. Clim. Appl. Meteor., 25, 532–545, https://doi.org/10.1175/1520-0450(1986)025<0532:MIOTDO>2.0.CO;2, 1986. a
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Climate changes require a dynamic description of glaciers in hydrological models. In this study we focus on the local modelling of snow and firn. We tested our model at the site of Colle Gnifetti, 4400–4550 m a.s.l. The model shows that wind erodes all the precipitation of the cold months, while snow is in part conserved between April and September since higher temperatures protect snow from erosion. We also compared modelled and observed firn density, obtaining a satisfying agreement.