气候变化领域集成服务门户(CCPortal): On the response of daily precipitation extremes to local mean temperature in the Yangtze River basin

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DOI	10.1016/j.atmosres.2024.107265
	On the response of daily precipitation extremes to local mean temperature in the Yangtze River basin
	Jiang, Yan; He, Xinguang; Li, Jiajia; Zhang, Xinping
发表日期	2024
ISSN	0169-8095
EISSN	1873-2895
起始页码	300
卷号	300
英文摘要	This study explores the response of daily extreme precipitation (PEX) to local mean temperatures (T) of the previous 0-day (T0), 1-day (T1), and 1 to 9-days (T1-9) in the Yangtze River basin (YRB) using the non-stationarity test, binning method and copula theory. Results show that the annual scaling rate of PEX with T during 1961-2020 exhibits positive, negative and positive changing trends from southwest to northeast with the maximum magnitudes in the west, and experiences significant abrupt change only at 14.1% grids. The PEX-T scaling relation in the entire study period is predominantly characterized by a peak pattern over the YRB, with precipitation peaking at about 8 degrees C in the western highlands and at 25 degrees C in the east-central lowlands. However, the use of T1-9 yields a positive PEX-T pattern at more grids compared to T1 and T0, which highlights the important role of atmospheric moisture residence time in minimizing cooling artefacts in the scaling estimation. Generally, the full scaling rate of PEX with T in the study period is larger in the west-central part but smaller in the eastern YRB, and more sensitive to antecedent temperatures, with the ranges of - 8-20%/degrees C, - 8-30%/degrees C and - 10-30%/degrees C against T0, T1 and T1-9, respectively. As precipitation intensifies, the full scaling decreases in plateau-mountain areas but increases in low-lying regions, gradually approaching the ClausiusClapeyron (CC) scaling and exhibiting a super-CC, CC-like and sub-CC scaling pattern from west to east. Additionally, heavier precipitation events are most likely to occur at higher local temperatures in most areas even with peak structure. These findings provide new insights into the PEX-T relationships, which is conducive to understanding future changes in precipitation extremes and assessing precipitation-related risks under climate change.
英文关键词	Daily precipitation extremes; Local mean temperature; Apparent scaling; Probabilistic association; Yangtze River basin
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:001174720500001
来源期刊	ATMOSPHERIC RESEARCH
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/304881
作者单位	Hunan Normal University; Hunan Normal University; Hunan Normal University
推荐引用方式 GB/T 7714	Jiang, Yan,He, Xinguang,Li, Jiajia,et al. On the response of daily precipitation extremes to local mean temperature in the Yangtze River basin[J],2024,300.
APA	Jiang, Yan,He, Xinguang,Li, Jiajia,&Zhang, Xinping.(2024).On the response of daily precipitation extremes to local mean temperature in the Yangtze River basin.ATMOSPHERIC RESEARCH,300.
MLA	Jiang, Yan,et al."On the response of daily precipitation extremes to local mean temperature in the Yangtze River basin".ATMOSPHERIC RESEARCH 300(2024).