气候变化领域集成服务门户(CCPortal): Arctic sea-ice loss fuels extreme European snowfall

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DOI	10.1038/s41561-021-00719-y
	Arctic sea-ice loss fuels extreme European snowfall
	Bailey H.; Hubbard A.; Klein E.S.; Mustonen K.-R.; Akers P.D.; Marttila H.; Welker J.M.
发表日期	2021
ISSN	17520894
起始页码	283
结束页码	288
卷号	14 期号:5
英文摘要	The loss of Arctic sea-ice has been implicated with severe cold and snowy mid-latitude winters. However, the mechanisms and a direct link remain elusive due to limited observational evidence. Here we present atmospheric water vapour isotope measurements from Arctic Finland during ‘the Beast from the East’—a severe anticyclonic outbreak that brought heavy snowfall and freezing across Europe in February 2018. We find that an anomalously warm Barents Sea, with a 60% ice-free surface, supplied up to 9.3 mm d−1 moisture flux to this cold northeasterly airflow. We demonstrate that approximately 140 gigatonnes of water was evaporated from the Barents Sea during the event, potentially supplying up to 88% of the corresponding fresh snow over northern Europe. Reanalysis data show that from 1979 to 2020, net March evaporation across the Barents Sea increased by approximately 70 kg per square metre of sea-ice lost (r2 = 0.73, P < 0.01), concurrent with a 1.6 mm (water equivalent) per year increase in Europe’s maximum snowfall. Our analysis directly links Arctic sea-ice loss with increased evaporation and extreme snowfall, and signifies that by 2080, an Atlantified ice-free Barents Sea will be a major source of winter moisture for continental Europe. © 2021, The Author(s), under exclusive licence to Springer Nature Limited.
英文关键词	air-sea interaction; airflow; evaporation; isotopic analysis; moisture flux; snow; water vapor; Arctic Ocean; Barents Sea; Europe; Finland
语种	英语
来源期刊	Nature Geoscience
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206857
作者单位	Ecology and Genetics Research Unit, University of Oulu, Oulu, Finland; Centre for Arctic Gas Hydrate, Environment and Climate, Department of Geosciences, UiT the Arctic University of Norway, Tromsø, Norway; Department of Geological Sciences, University of Alaska Anchorage, Anchorage, AK, United States; Institut des Géosciences et l’Environnement, National Centre for Scientific Research, Grenoble, France; Water, Energy and Environmental Engineering Research Unit, University of Oulu, Oulu, Finland; Department of Biological Sciences, University of Alaska Anchorage, Anchorage, AK, United States
推荐引用方式 GB/T 7714	Bailey H.,Hubbard A.,Klein E.S.,et al. Arctic sea-ice loss fuels extreme European snowfall[J],2021,14(5).
APA	Bailey H..,Hubbard A..,Klein E.S..,Mustonen K.-R..,Akers P.D..,...&Welker J.M..(2021).Arctic sea-ice loss fuels extreme European snowfall.Nature Geoscience,14(5).
MLA	Bailey H.,et al."Arctic sea-ice loss fuels extreme European snowfall".Nature Geoscience 14.5(2021).