Increased autumn and winter precipitation during the Last Glacial Maximum in the European Alps
Spoetl, C.1; Koltai, G.1; Jarosch, A. H.2; Cheng, H.3,4,5
通讯作者Spoetl, C.(christoph.spoetl@uibk.ac.at)
2021-03-23
发表期刊NATURE COMMUNICATIONS
ISSN2041-1723
卷号12期号:1页码:9
摘要The culmination of the glaciers in the European Alps during the Last Glacial Maximum (LGM) is one of the most intensively studied paleoglaciological events, but its trigger and forcing remain incompletely understood. Here, we provide evidence that the timing of this glacier maximum coincided within age uncertainties with a 3100 yr-long interval of subsurface warming (26.6 to 23.5 ka BP) as recorded by an archive preserved in caves, cryogenic carbonates. This interval of sustained permafrost degradation during one of the coldest intervals of the last glacial period calls for a fundamental change in the dry Arctic-style precipitation regime. Instead, heavy snowfall during autumn and early winter led to the accumulation of a seasonal snowpack insulating the ground from the winter chill. Combined with thermal modelling, the data provide compelling evidence that the LGM glacier advance in the Alps was fueled by intensive snowfall late in the year, likely sourced from the Mediterranean Sea. What controlled changes of glaciers in the European Alps at the time of their largest extent, about 25,000 years ago, is not well known. Here, the authors use cryogenic carbonates in caves to show that heavy snowfall during autumn and early winter was the main source of glacier growth.
DOI10.1038/s41467-021-22090-7
关键词[WOS]ATMOSPHERIC CIRCULATION ; CRYOGENIC CARBONATES ; DANSGAARD-OESCHGER ; CLIMATE-CHANGE ; CAVE ; PERMAFROST ; EVENTS ; KARST ; ENVIRONMENTS ; TEMPERATURES
收录类别SCI ; SCI
语种英语
资助项目Austrian Science Fund (FWF)[P300040] ; Austrian Science Fund (FWF)[P318740] ; Tiroler Wissenschaftsforderung grant[WF-F.16947/5-2019] ; NSFC[41888101]
WOS研究方向Science & Technology - Other Topics
项目资助者Austrian Science Fund (FWF) ; Tiroler Wissenschaftsforderung grant ; NSFC
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000684714300008
出版者NATURE PORTFOLIO
引用统计
被引频次:36[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/16952
专题黄土与第四纪地质国家重点实验室(2010~)
通讯作者Spoetl, C.
作者单位1.Univ Innsbruck, Inst Geol, Innsbruck, Austria
2.ThetaFrame Solut, Kufstein, Austria
3.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian, Peoples R China
4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China
5.Univ Minnesota, Dept Earth Sci, Minneapolis, MN USA
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Spoetl, C.,Koltai, G.,Jarosch, A. H.,et al. Increased autumn and winter precipitation during the Last Glacial Maximum in the European Alps[J]. NATURE COMMUNICATIONS,2021,12(1):9.
APA Spoetl, C.,Koltai, G.,Jarosch, A. H.,&Cheng, H..(2021).Increased autumn and winter precipitation during the Last Glacial Maximum in the European Alps.NATURE COMMUNICATIONS,12(1),9.
MLA Spoetl, C.,et al."Increased autumn and winter precipitation during the Last Glacial Maximum in the European Alps".NATURE COMMUNICATIONS 12.1(2021):9.
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