Warming-induced monsoon precipitation phase change intensifies glacier mass loss in the southeastern Tibetan Plateau - Archive ouverte HAL Access content directly
Journal Articles Proceedings of the National Academy of Sciences Year : 2022

Warming-induced monsoon precipitation phase change intensifies glacier mass loss in the southeastern Tibetan Plateau

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Achille Jouberton
  • Function : Author
Thomas E. Shaw
  • Function : Author
Evan Miles
  • Function : Author
Michael Mccarthy
  • Function : Author
Stefan Fugger
  • Function : Author
Shaoting Ren
  • Function : Author
Wei Yang
  • Function : Author
Francesca Pellicciotti
  • Function : Author

Abstract

Rapid mass loss of glaciers in High Mountain Asia has large consequences for downstream water supply and glacier-related hazards. Glaciers in the southeastern Tibetan Plateau are experiencing the highest mass loss rates within Asia, despite the limited impact of recent warming on their spring accumulation regime. Based on model simulations reconstructing the climate and glacier evolution of the last 45 y, we show that the recent acceleration in observed glacier mass loss was effected by a warming-induced shift from snowfall to rainfall during the monsoon months, exacerbated by decreasing monsoon precipitation since the 2000s and only partly mitigated by increasing spring precipitation. Our results reveal the processes behind the high sensitivity to climate warming for glaciers in this region.

Dates and versions

insu-03859262 , version 1 (18-11-2022)

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Achille Jouberton, Thomas E. Shaw, Evan Miles, Michael Mccarthy, Stefan Fugger, et al.. Warming-induced monsoon precipitation phase change intensifies glacier mass loss in the southeastern Tibetan Plateau. Proceedings of the National Academy of Sciences, 2022, 119, ⟨10.1073/pnas.2109796119⟩. ⟨insu-03859262⟩

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