干旱区生态环境知识资源中心(Arid): Land-atmosphere coupling effects of soil temperature and moisture on extreme precipitation in the arid regions of Northwest China

Arid

DOI	10.3389/feart.2022.1079131
	Land-atmosphere coupling effects of soil temperature and moisture on extreme precipitation in the arid regions of Northwest China
	Wu, Shuting; Wei, Zhigang; Li, Xianru; Ma, Li
通讯作者	Wei, ZG
来源期刊	FRONTIERS IN EARTH SCIENCE
EISSN	2296-6463
出版年	2023
卷号	10
英文摘要	With global warming and more frequent extreme precipitation events in recent years, the phenomenon of warming and humidification in the arid regions of Northwest China (ANWC) has attracted increasing attention. We assessed the coupling effects of soil temperature and moisture on extreme precipitation in the ANWC by using daily precipitation data from CN05.1 and monthly data on soil temperature, soil moisture, and energy from ERA5-land, 1961-2018. After logical partitioning by K-means clustering, the primary influencing routes in each partition were investigated using two indices of extreme precipitation, indicated by precipitation on very wet days (R95P) and the number of extreme precipitation days (R10day). We found that 1) Local extreme precipitation has had a steadily growing impact on overall precipitation. In summer, this impact is primarily driven by an increase in the quantity of extreme precipitation, but in winter, it is primarily driven by an increase in the intensity of single precipitation. 2) The Tianshan Mountains (TM) and Qilian Mountains (QM) are the key locations for the coupling of soil temperature and moisture with the extreme precipitation index. Both locations exhibit a positive coupling state for soil temperature with extreme precipitation with positive coupling in the TM but negative coupling in the QM for soil moisture with extreme precipitation. 3) In the coupling of soil temperature and moisture with energy, the relevant significant regions are almost all over the ANWC throughout the year and all seasons, and the coupling high-value areas are concentrated around the basin. 4) In the TM-Hami Basin (HB)-QM, the coupling between energy and the extreme precipitation index is also stronger. The specific coupling paths have been changing with seasonal and regional changes.
英文关键词	land-atmosphere coupling soil temperature and moisture arid region extreme precipitation Northwest China
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:000923708800001
WOS关键词	FEEDBACKS
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396467
推荐引用方式 GB/T 7714	Wu, Shuting,Wei, Zhigang,Li, Xianru,et al. Land-atmosphere coupling effects of soil temperature and moisture on extreme precipitation in the arid regions of Northwest China[J],2023,10.
APA	Wu, Shuting,Wei, Zhigang,Li, Xianru,&Ma, Li.(2023).Land-atmosphere coupling effects of soil temperature and moisture on extreme precipitation in the arid regions of Northwest China.FRONTIERS IN EARTH SCIENCE,10.
MLA	Wu, Shuting,et al."Land-atmosphere coupling effects of soil temperature and moisture on extreme precipitation in the arid regions of Northwest China".FRONTIERS IN EARTH SCIENCE 10(2023).