---
_id: '12577'
abstract:
- lang: eng
text: Glaciers are key components of the mountain water towers of Asia and are vital
for downstream domestic, agricultural, and industrial uses. The glacier mass loss
rate over the southeastern Tibetan Plateau is among the highest in Asia and has
accelerated in recent decades. This acceleration has been attributed to increased
warming, but the mechanisms behind these glaciers’ high sensitivity to warming
remain unclear, while the influence of changes in precipitation over the past
decades is poorly quantified. Here, we reconstruct glacier mass changes and catchment
runoff since 1975 at a benchmark glacier, Parlung No. 4, to shed light on the
drivers of recent mass losses for the monsoonal, spring-accumulation glaciers
of the Tibetan Plateau. Our modeling demonstrates how a temperature increase (mean
of 0.39∘C ⋅dec−1since 1990) has accelerated
mass loss rates by altering both the ablation and accumulation regimes in a complex
manner. The majority of the post-2000 mass loss occurred during the monsoon months,
caused by simultaneous decreases in the solid precipitation ratio (from 0.70 to
0.56) and precipitation amount (–10%), leading to reduced monsoon accumulation
(–26%). Higher solid precipitation in spring (+18%) during the last two decades
was increasingly important in mitigating glacier mass loss by providing mass to
the glacier and protecting it from melting in the early monsoon. With bare ice
exposed to warmer temperatures for longer periods, icemelt and catchment discharge
have unsustainably intensified since the start of the 21st century, raising concerns
for long-term water supply and hazard occurrence in the region.
article_number: e2109796119
article_processing_charge: No
article_type: original
author:
- first_name: Achille
full_name: Jouberton, Achille
last_name: Jouberton
- first_name: Thomas E.
full_name: Shaw, Thomas E.
last_name: Shaw
- first_name: Evan
full_name: Miles, Evan
last_name: Miles
- first_name: Michael
full_name: McCarthy, Michael
last_name: McCarthy
- first_name: Stefan
full_name: Fugger, Stefan
last_name: Fugger
- first_name: Shaoting
full_name: Ren, Shaoting
last_name: Ren
- first_name: Amaury
full_name: Dehecq, Amaury
last_name: Dehecq
- first_name: Wei
full_name: Yang, Wei
last_name: Yang
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: Jouberton A, Shaw TE, Miles E, et al. Warming-induced monsoon precipitation
phase change intensifies glacier mass loss in the southeastern Tibetan Plateau.
PNAS. 2022;119(37). doi:10.1073/pnas.2109796119
apa: Jouberton, A., Shaw, T. E., Miles, E., McCarthy, M., Fugger, S., Ren, S., …
Pellicciotti, F. (2022). Warming-induced monsoon precipitation phase change intensifies
glacier mass loss in the southeastern Tibetan Plateau. PNAS. Proceedings
of the National Academy of Sciences. https://doi.org/10.1073/pnas.2109796119
chicago: Jouberton, Achille, Thomas E. Shaw, Evan Miles, Michael McCarthy, Stefan
Fugger, Shaoting Ren, Amaury Dehecq, Wei Yang, and Francesca Pellicciotti. “Warming-Induced
Monsoon Precipitation Phase Change Intensifies Glacier Mass Loss in the Southeastern
Tibetan Plateau.” PNAS. Proceedings of the National Academy of Sciences,
2022. https://doi.org/10.1073/pnas.2109796119.
ieee: A. Jouberton et al., “Warming-induced monsoon precipitation phase change
intensifies glacier mass loss in the southeastern Tibetan Plateau,” PNAS,
vol. 119, no. 37. Proceedings of the National Academy of Sciences, 2022.
ista: Jouberton A, Shaw TE, Miles E, McCarthy M, Fugger S, Ren S, Dehecq A, Yang
W, Pellicciotti F. 2022. Warming-induced monsoon precipitation phase change intensifies
glacier mass loss in the southeastern Tibetan Plateau. PNAS. 119(37), e2109796119.
mla: Jouberton, Achille, et al. “Warming-Induced Monsoon Precipitation Phase Change
Intensifies Glacier Mass Loss in the Southeastern Tibetan Plateau.” PNAS,
vol. 119, no. 37, e2109796119, Proceedings of the National Academy of Sciences,
2022, doi:10.1073/pnas.2109796119.
short: A. Jouberton, T.E. Shaw, E. Miles, M. McCarthy, S. Fugger, S. Ren, A. Dehecq,
W. Yang, F. Pellicciotti, PNAS 119 (2022).
date_created: 2023-02-20T08:10:02Z
date_published: 2022-09-06T00:00:00Z
date_updated: 2023-02-28T13:50:37Z
day: '06'
doi: 10.1073/pnas.2109796119
extern: '1'
intvolume: ' 119'
issue: '37'
keyword:
- Multidisciplinary
language:
- iso: eng
month: '09'
oa_version: None
publication: PNAS
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Warming-induced monsoon precipitation phase change intensifies glacier mass
loss in the southeastern Tibetan Plateau
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 119
year: '2022'
...