干旱区生态环境知识资源中心(Arid): Spatiotemporal Characteristics and Influencing Factors of Summer Heatwaves in Hexi Oasis during 1962-2020

Arid

DOI	10.3390/atmos14010119
	Spatiotemporal Characteristics and Influencing Factors of Summer Heatwaves in Hexi Oasis during 1962-2020
	Lu, Juan; Liu, Puxing; Wang, Huiyu
通讯作者	Liu, PX
来源期刊	ATMOSPHERE
EISSN	2073-4433
出版年	2023
卷号	14 期号:1
英文摘要	Based on the daily gridded (0.5 degrees x 0.5 degrees) maximum temperature data during 1962-2020, the spatiotemporal characteristics of heatwaves in Hexi Oasis, Gansu Province, China and their influencing factors are investigated. The results showed that for the last 59 years, the overall trends of high-temperature heatwaves in Hexi Oasis were prolonged duration (0.276 d/10a), increased frequency (0.007 times/10a), and decreased intensity (-0.072 degrees C/10a). In terms of spatial variation, there was a gradually decreasing trend from northwest to southeast for both the duration and frequency of heatwaves. In the contrary, heatwaves with higher intensity were mainly distributed over the southeastern and central parts of Hexi Oasis. The Mann-Kendall (M-K) analysis demonstrated that the mutation years of the duration and intensity of heatwaves are 2009 and 1992, respectively, while the frequency remained nearly constant for the last 59a. In addition, the cycles for the duration (2.6a and 7.2a), frequency (2.8a and 7.6a), and intensity (2.6a) of heatwaves agree well with those of atmospheric circulation and El Nino events, indicating that the above events have a great impact on the heatwaves. The influencing factors analyzation implies that the heatwaves are mainly influenced by Asian zone polar vortex area index (APVAI), East Asia major trough (EAT), Qinghai-Tibetan Plateau index (TPI), and carbon dioxide emissions (CDE). Additionally, it is concluded that the intensity of heatwaves was negatively correlated with the size of the subtropical high-pressure area in the western Pacific Ocean.
英文关键词	high-temperature heatwaves Hexi Oasis spatiotemporal variations influencing factor extreme climate
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000916877800001
WOS关键词	HEAT-WAVE ; MORTALITY ; EXTREMES ; CHINA ; HOT
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395461
推荐引用方式 GB/T 7714	Lu, Juan,Liu, Puxing,Wang, Huiyu. Spatiotemporal Characteristics and Influencing Factors of Summer Heatwaves in Hexi Oasis during 1962-2020[J],2023,14(1).
APA	Lu, Juan,Liu, Puxing,&Wang, Huiyu.(2023).Spatiotemporal Characteristics and Influencing Factors of Summer Heatwaves in Hexi Oasis during 1962-2020.ATMOSPHERE,14(1).
MLA	Lu, Juan,et al."Spatiotemporal Characteristics and Influencing Factors of Summer Heatwaves in Hexi Oasis during 1962-2020".ATMOSPHERE 14.1(2023).