The figure shows trends in observed permafrost temperatures from 10 m (left) and 20 m (right) depth for selected boreholes in European mountains: the sites include the PACE transect and two additional sites in the Swiss Alps(and two in Norway (Dovrefjell and Iskoras).
PERMOS. 2013. Permafrost in Switzerland 2008/2009 and 2009/2010. Ed. Jeannette Noetzli. Glaciological Report (Permafrost) 10/11. Cryospheric Commission of the Swiss Academy of Sciences, 80 pp.
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