气候变化领域集成服务门户(CCPortal): Assessing Argentina's heatwave dynamics (1950-2022): a comprehensive analysis of temporal and spatial variability using ERA5-LAND

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DOI	10.1007/s00704-024-04915-9
	Assessing Argentina's heatwave dynamics (1950-2022): a comprehensive analysis of temporal and spatial variability using ERA5-LAND
	Cimolai, Caterina; Aguilar, Enric
发表日期	2024
ISSN	0177-798X
EISSN	1434-4483
英文摘要	Understanding the spatial and temporal variability of heatwaves is crucial for climate change adaptation. This study examines heatwaves in Argentina from 1950 to 2022, analyzing temporal and spatial changes using four metrics: number of events (E), duration (D), mean intensity (MnI), and maximum intensity (MxI). It investigates seasonal variations (Warm and Cold Seasons-CS, WS) and the influence of different phases of the El Nino-Southern Oscillation (ENSO). Data from ERA5-LAND Reanalysis for 2 m daytime (Tx) and nighttime (Tn) temperatures are utilized. Our findings reveal regions with significantly higher heatwave intensities (Tx) in the North, east of Cuyo, west of Centro, and Southern Patagonia. Conversely, significant heatwave intensities (Tn) were observed, particularly in the north of the Litoral and Southern Patagonia. The Andes region (center and north) exhibited significant intensities for Tn. Both D and E exhibited similar significant trends for both Tn and Tx, except for the central zone. During the WS, the North-West and South Patagonia exhibit significant increasing trends for across most metrics. In contrast, during the CS, a higher number of significant increases in the studied metrics were observed in relation to Tx. El Nino amplifies heatwave intensities nationwide, except in Patagonia, where this occurs during the cold phase. In this phase, E and D of events increase in most Argentinian regions, resulting in a decoupling of intensity and duration, which increases in opposite periods. This study contributes to existing research by providing a detailed understanding of heatwave behavior with high spatial resolution.
英文关键词	Climate change; ERA5-LAND; Extreme events
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:001183963300002
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/288725
作者单位	Universitat Rovira i Virgili
推荐引用方式 GB/T 7714	Cimolai, Caterina,Aguilar, Enric. Assessing Argentina's heatwave dynamics (1950-2022): a comprehensive analysis of temporal and spatial variability using ERA5-LAND[J],2024.
APA	Cimolai, Caterina,&Aguilar, Enric.(2024).Assessing Argentina's heatwave dynamics (1950-2022): a comprehensive analysis of temporal and spatial variability using ERA5-LAND.THEORETICAL AND APPLIED CLIMATOLOGY.
MLA	Cimolai, Caterina,et al."Assessing Argentina's heatwave dynamics (1950-2022): a comprehensive analysis of temporal and spatial variability using ERA5-LAND".THEORETICAL AND APPLIED CLIMATOLOGY (2024).