Articles | Volume 14, issue 3
The Cryosphere, 14, 925–934, 2020
https://doi.org/10.5194/tc-14-925-2020
The Cryosphere, 14, 925–934, 2020
https://doi.org/10.5194/tc-14-925-2020

Research article 12 Mar 2020

Research article | 12 Mar 2020

Strong changes in englacial temperatures despite insignificant changes in ice thickness at Dôme du Goûter glacier (Mont Blanc area)

Christian Vincent et al.

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We observed very low glacier thickness changes over the last decades at very-high-elevation glaciated areas on Mont Blanc. Conversely, measurements performed in deep boreholes since 1994 reveal strong changes in englacial temperature reaching 1.5 °C at a depth of 50 m. We conclude that at such very high elevations, current changes in climate do not lead to visible changes in glacier thickness but cause invisible changes within the glacier in terms of englacial temperatures.