气候变化领域集成服务门户(CCPortal): Permafrost thaw drives surface water decline across lake-rich regions of the Arctic

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DOI	10.1038/s41558-022-01455-w
	Permafrost thaw drives surface water decline across lake-rich regions of the Arctic
	Webb, Elizabeth E.; Liljedahl, Anna K.; Cordeiro, Jada A.; Loranty, Michael M.; Witharana, Chandi; Lichstein, Jeremy W.
发表日期	2022
ISSN	1758-678X
EISSN	1758-6798
起始页码	841
结束页码	+
卷号	12 期号:9 页码:14
英文摘要	Lakes constitute 20-40% of Arctic lowlands, the largest surface water fraction of any terrestrial biome. These lakes provide crucial habitat for wildlife, supply water for remote Arctic communities and play an important role in carbon cycling and the regional energy balance. Recent evidence suggests that climate change is shifting these systems towards long-term wetting (lake formation or expansion) or drying. The net direction and cause of these shifts, however, are not well understood. Here, we present evidence for large-scale drying across lake-rich regions of the Arctic over the past two decades (2000-2021), a trend that is correlated with increases in annual air temperature and autumn rain. Given that increasing air temperatures and autumn rain promote permafrost thaw, our results indicate that permafrost thaw is leading to widespread surface water decline, challenging models that do not predict a net decrease in lake area until the mid-twenty-first or twenty-second centuries. The Arctic lowlands are characterized by a large number of lakes that cover a substantial part of the surface in some regions. Here, the authors apply a machine learning approach to satellite data to show that permafrost thaw since 2000 has caused a decline in surface water in these regions.
学科领域	Environmental Sciences; Environmental Studies; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000847259100002
来源期刊	NATURE CLIMATE CHANGE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/274073
作者单位	State University System of Florida; University of Florida; State University System of Florida; University of Florida; Colgate University; University of Connecticut
推荐引用方式 GB/T 7714	Webb, Elizabeth E.,Liljedahl, Anna K.,Cordeiro, Jada A.,et al. Permafrost thaw drives surface water decline across lake-rich regions of the Arctic[J],2022,12(9):14.
APA	Webb, Elizabeth E.,Liljedahl, Anna K.,Cordeiro, Jada A.,Loranty, Michael M.,Witharana, Chandi,&Lichstein, Jeremy W..(2022).Permafrost thaw drives surface water decline across lake-rich regions of the Arctic.NATURE CLIMATE CHANGE,12(9),14.
MLA	Webb, Elizabeth E.,et al."Permafrost thaw drives surface water decline across lake-rich regions of the Arctic".NATURE CLIMATE CHANGE 12.9(2022):14.