气候变化领域集成服务门户(CCPortal): Evidence of anthropogenic impacts on global drought frequency, duration, and intensity

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DOI	10.1038/s41467-021-22314-w
	Evidence of anthropogenic impacts on global drought frequency, duration, and intensity
	Chiang F.; Mazdiyasni O.; AghaKouchak A.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Most climate change detection and attribution studies have focused on mean or extreme temperature or precipitation, neglecting to explore long-term changes in drought characteristics. Here we provide evidence that anthropogenic forcing has impacted interrelated meteorological drought characteristics. Using SPI and SPEI indices generated from an ensemble of 9 CMIP6 models (using 3 realizations per model), we show that the presence of anthropogenic forcing has increased the drought frequency, maximum drought duration, and maximum drought intensity experienced in large parts of the Americas, Africa, and Asia. Using individual greenhouse gas and anthropogenic aerosol forcings, we also highlight that regional balances between the two major forcings have contributed to the drying patterns detected in our results. Overall, we provide a comprehensive characterization of the influence of anthropogenic forcing on drought characteristics, providing important perspectives on the role of forcings in driving changes in drought events. © 2021, The Author(s).
语种	英语
scopus关键词	aerosol; anthropogenic effect; atmospheric forcing; climate change; CMIP; detection method; extreme event; greenhouse gas; precipitation (climatology); aerosol; Africa; article; Asia; drought; greenhouse gas; human impact (environment); Western Hemisphere; Africa; Asia
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/250698
作者单位	Department of Civil and Environmental Engineering, University of California, Irvine, CA, United States; Department of Earth System Science, University of California, Irvine, CA, United States
推荐引用方式 GB/T 7714	Chiang F.,Mazdiyasni O.,AghaKouchak A.. Evidence of anthropogenic impacts on global drought frequency, duration, and intensity[J],2021,12(1).
APA	Chiang F.,Mazdiyasni O.,&AghaKouchak A..(2021).Evidence of anthropogenic impacts on global drought frequency, duration, and intensity.Nature Communications,12(1).
MLA	Chiang F.,et al."Evidence of anthropogenic impacts on global drought frequency, duration, and intensity".Nature Communications 12.1(2021).