气候变化领域集成服务门户(CCPortal): Anthropogenic influence on extreme precipitation over global land areas seen in multiple observational datasets

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DOI	10.1038/s41467-021-24262-x
	Anthropogenic influence on extreme precipitation over global land areas seen in multiple observational datasets
	Madakumbura G.D.; Thackeray C.W.; Norris J.; Goldenson N.; Hall A.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	The intensification of extreme precipitation under anthropogenic forcing is robustly projected by global climate models, but highly challenging to detect in the observational record. Large internal variability distorts this anthropogenic signal. Models produce diverse magnitudes of precipitation response to anthropogenic forcing, largely due to differing schemes for parameterizing subgrid-scale processes. Meanwhile, multiple global observational datasets of daily precipitation exist, developed using varying techniques and inhomogeneously sampled data in space and time. Previous attempts to detect human influence on extreme precipitation have not incorporated model uncertainty, and have been limited to specific regions and observational datasets. Using machine learning methods that can account for these uncertainties and capable of identifying the time evolution of the spatial patterns, we find a physically interpretable anthropogenic signal that is detectable in all global observational datasets. Machine learning efficiently generates multiple lines of evidence supporting detection of an anthropogenic signal in global extreme precipitation. © 2021, The Author(s).
语种	英语
scopus关键词	anthropogenic effect; climate modeling; climate signal; data set; global change; global climate; parameterization; precipitation intensity; article; human; machine learning; precipitation; uncertainty
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250657
作者单位	Department of Atmospheric and Oceanic Sciences, University of California—Los Angeles, Los Angeles, CA, United States
推荐引用方式 GB/T 7714	Madakumbura G.D.,Thackeray C.W.,Norris J.,et al. Anthropogenic influence on extreme precipitation over global land areas seen in multiple observational datasets[J],2021,12(1).
APA	Madakumbura G.D.,Thackeray C.W.,Norris J.,Goldenson N.,&Hall A..(2021).Anthropogenic influence on extreme precipitation over global land areas seen in multiple observational datasets.Nature Communications,12(1).
MLA	Madakumbura G.D.,et al."Anthropogenic influence on extreme precipitation over global land areas seen in multiple observational datasets".Nature Communications 12.1(2021).