近年来的降雪量减少破坏了帕米尔高原西北部的冰川健康和融水资源。

IF 8.9 1区 地球科学 Q1 ENVIRONMENTAL SCIENCES
Communications Earth & Environment Pub Date : 2025-01-01 Epub Date: 2025-09-02 DOI:10.1038/s43247-025-02611-8
Achille Jouberton, Thomas E Shaw, Evan Miles, Marin Kneib, Stefan Fugger, Pascal Buri, Michael McCarthy, Abdulhamid Kayumov, Hofiz Navruzshoev, Ardamehr Halimov, Khusrav Kabutov, Farrukh Homidov, Francesca Pellicciotti
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引用次数: 0

摘要

中亚拥有一些世界上最后的相对健康的山地冰川,并严重依赖冰雪融化为下游供水,尽管这种稳定冰川状态的原因尚不清楚。我们结合最近的原位观测、气候再分析和遥感数据,迫使陆地表面模型重建过去20年(1999-2023年)的冰川变化,并在塔吉克斯坦的一个基准冰川集水区上找出其原因。我们发现,自2018年以来,降雪量和雪深大幅下降,导致冰川健康状况下降,产流减少。遥感观测证实,帕米尔高原西北部积雪减少的范围更广,这表明降雪不足可能是造成区域性大规模损失的原因。我们的研究结果为该地区最近冰川健康状况的下降提供了解释,并加强了更好地了解降水变率的必要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Snowfall decrease in recent years undermines glacier health and meltwater resources in the Northwestern Pamirs.

Central Asia hosts some of the world's last relatively healthy mountain glaciers and is heavily dependent on snow and ice melt for downstream water supply, though the causes of this stable glacier state are not known. We combine recent in-situ observations, climate reanalysis and remote sensing data to force a land-surface model to reconstruct glacier changes over the last two decades (1999-2023) and disentangle their causes over a benchmark glacierized catchment in Tajikistan. We show that snowfall and snow depth have been substantially lower since 2018, leading to a decline in glacier health and reduced runoff generation. Remote-sensing observations confirm wider snow depletion across the Northwestern Pamirs, suggesting that a lack of snowfall might be a cause of mass losses regionally. Our results provide an explanation for the recent decline in glacier health in the region, and reinforce the need to better understand the variability of precipitation.

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来源期刊
Communications Earth & Environment
Communications Earth & Environment Earth and Planetary Sciences-General Earth and Planetary Sciences
CiteScore
8.60
自引率
2.50%
发文量
269
审稿时长
26 weeks
期刊介绍: Communications Earth & Environment is an open access journal from Nature Portfolio publishing high-quality research, reviews and commentary in all areas of the Earth, environmental and planetary sciences. Research papers published by the journal represent significant advances that bring new insight to a specialized area in Earth science, planetary science or environmental science. Communications Earth & Environment has a 2-year impact factor of 7.9 (2022 Journal Citation Reports®). Articles published in the journal in 2022 were downloaded 1,412,858 times. Median time from submission to the first editorial decision is 8 days.
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