OZCAR-RI CRYOBSCLIM Aiguille du Midi - France
OZCAR-RI CRYOBSCLIM Aiguille du Midi
Parent Site Name
High mountain granite peak at 3750 m above Chamonix, in the French Alps. The site dominates a glacial environment, with the Vallée Blanche-Mer de Glace to the Est and North. The site is made of two peaks: the Western peak is accessible by cable car, whereas the monitoring activities are performed on the Central peak.
General Characteristics, Purpose, History
Aiguille du Midi is the main observing site for high mountain permafrost on rock faces in the Alps: three subhorizontal boreholes were drilled on rock faces of different aspect (NE, NW, S) and equipped with thermistor chains for rock temperature monitoring, rock sub-surface temperature is measured as well. The Aiguille du Midi is the central station of a broader observation network of rock faces dynamics, including a permanent rockfall inventory and periodic Lidar and geophysical surveys of selected rock faces. The site serves also for calibration of permafrost distribution models in rock slopes.
Rock surface temperature measurements started in 2005 and was completed by climatic measurements on rock faces in 2006. Three subhorizontal boreholes were drilled to 10 m depth in 2009, on various aspect, and equipped for automated rock temperature monitoring. Periodic geophysical surveys, mianly ERT, are performed since 2008. Extensometers were installed in 2012 on fractures.
Affiliation and Network Specific Information