气候变化领域集成服务门户(CCPortal): Variations in start date, end date, frequency and intensity of yearly temperature extremes across China during the period 1961-2017

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DOI	10.1088/1748-9326/ab7390
	Variations in start date, end date, frequency and intensity of yearly temperature extremes across China during the period 1961-2017
	Han J.; Miao C.; Duan Q.; Wu J.; Lei X.; Liao W.
发表日期	2020
ISSN	17489318
卷号	15 期号:4
英文摘要	Frequent temperature extremes due to climate change have had serious effects on human society and the natural environment. Using a 0.25 0.25 gridded Tmax (daily maximum temperature) and Tmin (daily minimum temperature) data set and 12 global climate models simulations from the sixth phase of the Coupled Model Intercomparison Project (CMIP6), we investigated variations in yearly temperature extremes in China during the past five decades with respect to four characteristics, namely, their start date, end date, frequency, and intensity. Results showed that the occurrence of nighttime extremes (the cold nights and warm nights) responded strongly to climate change. For 1961-2017, cold extremes started later (3.25 d/decade) and ended earlier (-4.58 d/decade), with decreased frequency (-6.56 d/decade), especially for cold nights, and weakened intensity (0.14 C/decade). In the same period, warm extremes started earlier (-3.43 d/decade) and ended later (3.15 d/decade) with increased frequency (6.79 d/decade), especially for warm nights, and enhanced intensity (0.09 C/decade). The spatial pattern of the variations was complex with anomalous regions. Multimodel ensembles (MMEs) from CMIP6 agreed well with observations regarding the average trends of temperature extremes over China, although detailed changes in spatial pattern were not captured adequately. The hazards of temperature extremes deserve close attention in the future due to the complex changes likely to occur across China for various characteristics of these temperature extremes under conditions of climate change. © 2020 The Author(s). Published by IOP Publishing Ltd.
语种	英语
scopus关键词	Climate models; Anomalous regions; Coupled Model Intercomparison Project; Global climate model; Maximum temperature; Minimum temperatures; Multi-model ensemble; Natural environments; Temperature extremes; Climate change; anomaly; climate change; CMIP; cold front; data set; extreme event; global climate; high temperature; China
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154054
作者单位	State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China; State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing, 100038, China
推荐引用方式 GB/T 7714	Han J.,Miao C.,Duan Q.,et al. Variations in start date, end date, frequency and intensity of yearly temperature extremes across China during the period 1961-2017[J],2020,15(4).
APA	Han J.,Miao C.,Duan Q.,Wu J.,Lei X.,&Liao W..(2020).Variations in start date, end date, frequency and intensity of yearly temperature extremes across China during the period 1961-2017.Environmental Research Letters,15(4).
MLA	Han J.,et al."Variations in start date, end date, frequency and intensity of yearly temperature extremes across China during the period 1961-2017".Environmental Research Letters 15.4(2020).