Journal cover Journal topic
Climate of the Past An interactive open-access journal of the European Geosciences Union
doi:10.5194/cp-2017-23
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
02 Mar 2017
Review status
This discussion paper is under review for the journal Climate of the Past (CP).
Ground surface temperature reconstruction for the last 500 years obtained from permafrost temperatures observed in the Stelvio Share borehole, Italian Alps
Mauro Guglielmin1, Marco Donatelli2, Matteo Semplice3, and Stefano Serra Capizzano2,4 1Department of Theoretical and Applied Sciences, Insubria University, Via Dunant 3, 21100 Varese
2Department of Science and High Technology, Insubria University
3Department of Mathematics, University of Turin
4Department of Information Technology, Uppsala University
Abstract. 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 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.

Citation: Guglielmin, M., Donatelli, M., Semplice, M., and Serra Capizzano, S.: Ground surface temperature reconstruction for the last 500 years obtained from permafrost temperatures observed in the Stelvio Share borehole, Italian Alps, Clim. Past Discuss., doi:10.5194/cp-2017-23, in review, 2017.
Mauro Guglielmin et al.
Mauro Guglielmin et al.
Mauro Guglielmin et al.

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Short summary
The 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 difference with respect to MAAT reconstructions relates to post Little Ice Age. Between 1940 and 1989, SSB data indicate a 0.9 °C cooling. Subsequently, an abrupt GST warming (> 0.8 °C per decade) was recorded between 1990 and 2011. This warming is of the same magnitude.
The pattern of ground surface temperatures (GST) reconstructed from the permafrost Stelvio Share...
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