Ground surface temperature reconstruction for the last 500 years obtained from permafrost temperatures observed in the Stelvio Share borehole, Italian Alps

Mauro Guglielmin, Marco Donatelli, Matteo Semplice, Stefano Serra Capizzano
2017 Climate of the Past Discussions  
The general pattern of ground surface temperatures (GST) reconstructed from the permafrost Stelvio Share Borehole (SSB) for the last 500 years are similar to the mean annual air temperature (MAAT) reconstructions for the European Alps. The main difference with respect to MAAT reconstructions relates to post Little Ice Age (LIA) events. Between 1940 and 1989, SSB data indicate a 0.9 °C cooling. Subsequently, a rapid and abrupt GST warming (more than 0.8 °C per decade) was
more » ... C per decade) was recorded between 1990 and 2011. This warming is of the same magnitude as the increase of MAAT between 1990 and 2000 recorded in central Europe and roughly double the MAAT in the Alps.
doi:10.5194/cp-2017-23 fatcat:jul7bdob3nglblhsc6t6ajozia