Thermal characteristics of permafrost in the steep alpine rock walls of the Aiguille du Midi (Mont Blanc Massif, 3842 m a.s.l)
| Autor: | F. Magnin, P. Deline, L. Ravanel, J. Noetzli, P. Pogliotti |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | The Cryosphere, Vol 9, Iss 1, Pp 109-121 (2015) |
| Druh dokumentu: | article |
| ISSN: | 1994-0416 1994-0424 |
| DOI: | 10.5194/tc-9-109-2015 |
| Popis: | Permafrost and related thermo-hydro-mechanical processes are thought to influence high alpine rock wall stability, but a lack of field measurements means that the characteristics and processes of rock wall permafrost are poorly understood. To help remedy this situation, in 2005 work began to install a monitoring system at the Aiguille du Midi (3842 m a.s.l). This paper presents temperature records from nine surface sensors (eight years of records) and three 10 m deep boreholes (4 years of records), installed at locations with different surface and bedrock characteristics. In line with previous studies, our temperature data analyses showed that: micro-meteorology controls the surface temperature, active layer thicknesses are directly related to aspect and ranged from |
| Databáze: | Directory of Open Access Journals |
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