整个大陆的测绘显示,东南极洲对融水淤积的敏感性日益增加

IF 29.6 1区 地球科学 Q1 ENVIRONMENTAL SCIENCES
Peter A. Tuckett, Andrew J. Sole, Stephen J. Livingstone, Julie M. Jones, James M. Lea, Ella Gilbert
{"title":"整个大陆的测绘显示,东南极洲对融水淤积的敏感性日益增加","authors":"Peter A. Tuckett, Andrew J. Sole, Stephen J. Livingstone, Julie M. Jones, James M. Lea, Ella Gilbert","doi":"10.1038/s41558-025-02363-5","DOIUrl":null,"url":null,"abstract":"<p>Surface meltwater is predicted to become increasingly important for Antarctic mass loss as atmospheric temperatures rise, due to its potential to influence ice dynamic, hydrofracture and radiative processes. However, our understanding of Antarctic surface meltwater is limited, with previous studies restricted in spatial or temporal scope. Here, using cloud computing, we produce an Antarctic-wide, monthly dataset of surface meltwater for 2006 to 2021. Surface meltwater covered 3,732 km<sup>2</sup> across Antarctica on average during each melt season, with 30% on grounded ice. High interannual variability in meltwater area across the Antarctic Peninsula and in East Antarctica correlates with large-scale modes of climate variability. In west Antarctica, meltwater area is comparatively low and this correlation is absent. An increase in the magnitude and variability of surface meltwater area without a coincident increase in modelled snowmelt in East Antarctica indicates that the ice-sheet surface might be becoming more favourable to meltwater ponding.</p>","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"48 1","pages":""},"PeriodicalIF":29.6000,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Continent-wide mapping shows increasing sensitivity of East Antarctica to meltwater ponding\",\"authors\":\"Peter A. Tuckett, Andrew J. Sole, Stephen J. Livingstone, Julie M. Jones, James M. Lea, Ella Gilbert\",\"doi\":\"10.1038/s41558-025-02363-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Surface meltwater is predicted to become increasingly important for Antarctic mass loss as atmospheric temperatures rise, due to its potential to influence ice dynamic, hydrofracture and radiative processes. However, our understanding of Antarctic surface meltwater is limited, with previous studies restricted in spatial or temporal scope. Here, using cloud computing, we produce an Antarctic-wide, monthly dataset of surface meltwater for 2006 to 2021. Surface meltwater covered 3,732 km<sup>2</sup> across Antarctica on average during each melt season, with 30% on grounded ice. High interannual variability in meltwater area across the Antarctic Peninsula and in East Antarctica correlates with large-scale modes of climate variability. In west Antarctica, meltwater area is comparatively low and this correlation is absent. An increase in the magnitude and variability of surface meltwater area without a coincident increase in modelled snowmelt in East Antarctica indicates that the ice-sheet surface might be becoming more favourable to meltwater ponding.</p>\",\"PeriodicalId\":18974,\"journal\":{\"name\":\"Nature Climate Change\",\"volume\":\"48 1\",\"pages\":\"\"},\"PeriodicalIF\":29.6000,\"publicationDate\":\"2025-07-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nature Climate Change\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://doi.org/10.1038/s41558-025-02363-5\",\"RegionNum\":1,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nature Climate Change","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1038/s41558-025-02363-5","RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0

摘要

随着大气温度的升高,由于地表融水可能影响冰的动力、水力破裂和辐射过程,预计对南极的质量损失将变得越来越重要。然而,我们对南极表面融水的认识是有限的,以往的研究仅限于空间或时间范围。在这里,我们使用云计算,制作了2006年至2021年南极洲范围内的每月表面融水数据集。在每个融化季节,南极洲的表面融水平均覆盖3732平方公里,其中30%在地面冰上。整个南极半岛和东南极洲融水面积的高年际变率与气候变率的大尺度模态相关。在南极洲西部,融水面积相对较小,这种相关性不存在。表面融水面积的幅度和变异性增加,而东南极洲模拟融雪量却没有同时增加,这表明冰盖表面可能正变得更有利于融水淤积。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Continent-wide mapping shows increasing sensitivity of East Antarctica to meltwater ponding

Continent-wide mapping shows increasing sensitivity of East Antarctica to meltwater ponding

Surface meltwater is predicted to become increasingly important for Antarctic mass loss as atmospheric temperatures rise, due to its potential to influence ice dynamic, hydrofracture and radiative processes. However, our understanding of Antarctic surface meltwater is limited, with previous studies restricted in spatial or temporal scope. Here, using cloud computing, we produce an Antarctic-wide, monthly dataset of surface meltwater for 2006 to 2021. Surface meltwater covered 3,732 km2 across Antarctica on average during each melt season, with 30% on grounded ice. High interannual variability in meltwater area across the Antarctic Peninsula and in East Antarctica correlates with large-scale modes of climate variability. In west Antarctica, meltwater area is comparatively low and this correlation is absent. An increase in the magnitude and variability of surface meltwater area without a coincident increase in modelled snowmelt in East Antarctica indicates that the ice-sheet surface might be becoming more favourable to meltwater ponding.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Nature Climate Change
Nature Climate Change ENVIRONMENTAL SCIENCES-METEOROLOGY & ATMOSPHERIC SCIENCES
CiteScore
40.30
自引率
1.60%
发文量
267
审稿时长
4-8 weeks
期刊介绍: Nature Climate Change is dedicated to addressing the scientific challenge of understanding Earth's changing climate and its societal implications. As a monthly journal, it publishes significant and cutting-edge research on the nature, causes, and impacts of global climate change, as well as its implications for the economy, policy, and the world at large. The journal publishes original research spanning the natural and social sciences, synthesizing interdisciplinary research to provide a comprehensive understanding of climate change. It upholds the high standards set by all Nature-branded journals, ensuring top-tier original research through a fair and rigorous review process, broad readership access, high standards of copy editing and production, rapid publication, and independence from academic societies and other vested interests. Nature Climate Change serves as a platform for discussion among experts, publishing opinion, analysis, and review articles. It also features Research Highlights to highlight important developments in the field and original reporting from renowned science journalists in the form of feature articles. Topics covered in the journal include adaptation, atmospheric science, ecology, economics, energy, impacts and vulnerability, mitigation, oceanography, policy, sociology, and sustainability, among others.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信