Uneven global retreat of persistent mountain snow cover alongside mountain warming from ERA5-land

IF 8.5 1区地球科学 Q1 METEOROLOGY & ATMOSPHERIC SCIENCES

npj Climate and Atmospheric Science Pub Date : 2024-11-10 DOI:10.1038/s41612-024-00829-5

Manuel Tobias Blau, Pratik Kad, Jenny V. Turton, Kyung-Ja Ha

引用次数: 0

Abstract

The warming of mountains has become evident in recent years, with a mean global warming rate of 1.19 °C from 1979 to 2022. However, unveiling the global divergent decline of persistent mountain snow cover in the face of climate shifts remains unexplored. However, the global decline of persistent mountain snow cover due to climate change is not well understood. This study uses reanalysis and satellite data to examine changes in snow cover lasting over six months across our global mountain regions. We reveal a significant global mean decline of 7.79% in persistent snow cover over the past 44 years. The regional snow cover trends exhibit a heterogeneous and non-linear response to its regional warming rate. Our findings highlight the interplay between global warming and snow cover, emphasizing the need for sustainable development strategies to address the potential impacts of diminishing mountain snow.

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从ERA5-陆地看全球持续性高山积雪的不均匀退缩与高山变暖的同时发生

近年来，山地变暖的趋势十分明显，从1979年到2022年，全球平均变暖速度为1.19 °C。然而，揭示全球持续性高山积雪覆盖在气候变迁中不同程度下降的问题仍有待探索。然而，人们对气候变化导致的全球持续性高山积雪面积下降还不甚了解。本研究利用再分析和卫星数据研究了全球山区持续六个月以上的积雪覆盖变化。我们发现，在过去 44 年中，全球平均持续积雪覆盖率大幅下降了 7.79%。区域积雪覆盖率的变化趋势与其区域变暖速率呈现出异质性和非线性反应。我们的研究结果凸显了全球变暖与积雪覆盖之间的相互作用，强调了制定可持续发展战略以应对山区积雪减少的潜在影响的必要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

npj Climate and Atmospheric Science Earth and Planetary Sciences-Atmospheric Science

CiteScore

8.80

自引率

3.30%

发文量

审稿时长

21 weeks

期刊介绍： npj Climate and Atmospheric Science is an open-access journal encompassing the relevant physical, chemical, and biological aspects of atmospheric and climate science. The journal places particular emphasis on regional studies that unveil new insights into specific localities, including examinations of local atmospheric composition, such as aerosols. The range of topics covered by the journal includes climate dynamics, climate variability, weather and climate prediction, climate change, ocean dynamics, weather extremes, air pollution, atmospheric chemistry (including aerosols), the hydrological cycle, and atmosphere–ocean and atmosphere–land interactions. The journal welcomes studies employing a diverse array of methods, including numerical and statistical modeling, the development and application of in situ observational techniques, remote sensing, and the development or evaluation of new reanalyses.