Unprecedented heat wave in December 2015 and potential for winter glacier ablation in the eastern Alps

Abstract We document the occurrence in December 2015 of unprecedented high monthly mean temperatures in the observational record of mountain sites in the eastern Alps. For the first time in the last 150 years mean December temperature exceeded 0 °C at elevations between 2100 and 2500 m, with Decembe...

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Autores principales:	Renato R. Colucci, Filippo Giorgi, Csaba Torma
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/1990a90d040440798877deb58b05295a
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spelling	oai:doaj.org-article:1990a90d040440798877deb58b05295a2021-12-02T15:06:18ZUnprecedented heat wave in December 2015 and potential for winter glacier ablation in the eastern Alps10.1038/s41598-017-07415-12045-2322https://doaj.org/article/1990a90d040440798877deb58b05295a2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07415-1https://doaj.org/toc/2045-2322Abstract We document the occurrence in December 2015 of unprecedented high monthly mean temperatures in the observational record of mountain sites in the eastern Alps. For the first time in the last 150 years mean December temperature exceeded 0 °C at elevations between 2100 and 2500 m, with December mean anomalies exceeding 6.5 °C with respect to the 1971–2000 mean. Along with the absence of snow cover, such temperatures might have lead to unprecedented winter ablation of glaciers in this elevation range. Smaller temperature anomalies occurred in surrounding low elevation sites, highlighting the key role of topography in this event. Specifically, strong inversions associated with the very stable synoptic conditions during the month amplified the anomalies at the high elevations of the mountain glacier sites. We analyze the processes underlying this exceptional event and place this anomaly within the context of future warming scenarios over the region.Renato R. ColucciFilippo GiorgiCsaba TormaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Renato R. Colucci Filippo Giorgi Csaba Torma Unprecedented heat wave in December 2015 and potential for winter glacier ablation in the eastern Alps
description	Abstract We document the occurrence in December 2015 of unprecedented high monthly mean temperatures in the observational record of mountain sites in the eastern Alps. For the first time in the last 150 years mean December temperature exceeded 0 °C at elevations between 2100 and 2500 m, with December mean anomalies exceeding 6.5 °C with respect to the 1971–2000 mean. Along with the absence of snow cover, such temperatures might have lead to unprecedented winter ablation of glaciers in this elevation range. Smaller temperature anomalies occurred in surrounding low elevation sites, highlighting the key role of topography in this event. Specifically, strong inversions associated with the very stable synoptic conditions during the month amplified the anomalies at the high elevations of the mountain glacier sites. We analyze the processes underlying this exceptional event and place this anomaly within the context of future warming scenarios over the region.
format	article
author	Renato R. Colucci Filippo Giorgi Csaba Torma
author_facet	Renato R. Colucci Filippo Giorgi Csaba Torma
author_sort	Renato R. Colucci
title	Unprecedented heat wave in December 2015 and potential for winter glacier ablation in the eastern Alps
title_short	Unprecedented heat wave in December 2015 and potential for winter glacier ablation in the eastern Alps
title_full	Unprecedented heat wave in December 2015 and potential for winter glacier ablation in the eastern Alps
title_fullStr	Unprecedented heat wave in December 2015 and potential for winter glacier ablation in the eastern Alps
title_full_unstemmed	Unprecedented heat wave in December 2015 and potential for winter glacier ablation in the eastern Alps
title_sort	unprecedented heat wave in december 2015 and potential for winter glacier ablation in the eastern alps
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/1990a90d040440798877deb58b05295a
work_keys_str_mv	AT renatorcolucci unprecedentedheatwaveindecember2015andpotentialforwinterglacierablationintheeasternalps AT filippogiorgi unprecedentedheatwaveindecember2015andpotentialforwinterglacierablationintheeasternalps AT csabatorma unprecedentedheatwaveindecember2015andpotentialforwinterglacierablationintheeasternalps
_version_	1718388497531797504

Unprecedented heat wave in December 2015 and potential for winter glacier ablation in the eastern Alps

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