干旱区生态环境知识资源中心(Arid): Spatio-temporal distribution of the rainstorm in the east side of the Helan Mountain and the possible causes of its variability

Arid

DOI	10.1016/j.atmosres.2021.105469
	Spatio-temporal distribution of the rainstorm in the east side of the Helan Mountain and the possible causes of its variability
	Chen, Yuying; Li, Jianping; Li, Xin; Zhang, Suzhao; Yang, Yin; Su, Yang; Yao, Shanshan; Liu, Jianhong
通讯作者	Chen, YY (corresponding author), CMA, Key Lab Meteorol Disaster Monitoring & Early Warn, Yinchuan 750002, Ningxia, Peoples R China.
来源期刊	ATMOSPHERIC RESEARCH
ISSN	0169-8095
EISSN	1873-2895
出版年	2021
卷号	252
英文摘要	Compared with other arid areas, the convective rainstorm occurs more easily in the east side of the Helan Mountain, which is characterized by the short duration, large intensity, high precipitation efficiency and significant local distribution. In this paper, the 5-min and hourly precipitation at 512 regional automatic weather stations and other high-resolution observation data are used to analyze the spatio-temporal distribution and evolution characteristics of the rainstorm in the east side of the Helan Mountain during 2006 and 2019. Then, based on the daily precipitation data at 12 national observation stations, the rainstorm characteristics in this region during 1951 and 2005 are analyzed. On this basis, the rainstorm characteristics in the two periods are compared and studied. Finally, the possible causes of the distribution characteristics of rainstorm are initially discussed. The results show that the rainstorm with large magnitude and high intensity is mainly located in the mountainous region, and it mainly occurs in July with a high frequency period from afternoon to the first half of the night. Compared with 1951-2005, in 2006-2019 the rainstorm frequency, intensity and extremity are all increased, and the nocturnal and topographic features are more significant. The spatio-temporal distribution of rainstorm in the east side of the Helan Mountain is closely related to the nighttime enhancement of the low-level southeasterly jet and the interaction between the low-level jet and the mountainous topography. In the windward slope of the Helan Mountain, the interaction between the low-level jet and the mountainous topography could trigger or enhance the mesoand small-scale rainstorm systems, which would favor the occurrence of rainstorm. Overall, the conclusions in this study can deep the understanding of the rainstorms in the Helan Mountain, which could provide a reference for the monitoring and warning of rainstorms in this region.
英文关键词	Rainstorm Spatio-temporal distribution Topographic influence Low-level jet East side of the Helan Mountain
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000620262400001
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349662
作者单位	[Chen, Yuying; Li, Jianping; Li, Xin; Zhang, Suzhao; Yang, Yin; Su, Yang; Yao, Shanshan; Liu, Jianhong] CMA, Key Lab Meteorol Disaster Monitoring & Early Warn, Yinchuan 750002, Ningxia, Peoples R China; [Chen, Yuying; Li, Jianping; Li, Xin; Zhang, Suzhao; Yang, Yin; Su, Yang; Yao, Shanshan; Liu, Jianhong] Ningxia Key Lab Meteorol Disaster Prevent & Mitig, Yinchuan 750002, Ningxia, Peoples R China; [Chen, Yuying; Zhang, Suzhao; Yang, Yin; Su, Yang; Yao, Shanshan] Ningxia Meteorol Observ, Yinchuan 750002, Ningxia, Peoples R China; [Li, Jianping] Ocean Univ China, Inst Adv Ocean Studies, Key Lab Phys Oceanog, Qingdao Natl Lab Marine Sci & Technol, Qingdao 266100, Peoples R China
推荐引用方式 GB/T 7714	Chen, Yuying,Li, Jianping,Li, Xin,et al. Spatio-temporal distribution of the rainstorm in the east side of the Helan Mountain and the possible causes of its variability[J],2021,252.
APA	Chen, Yuying.,Li, Jianping.,Li, Xin.,Zhang, Suzhao.,Yang, Yin.,...&Liu, Jianhong.(2021).Spatio-temporal distribution of the rainstorm in the east side of the Helan Mountain and the possible causes of its variability.ATMOSPHERIC RESEARCH,252.
MLA	Chen, Yuying,et al."Spatio-temporal distribution of the rainstorm in the east side of the Helan Mountain and the possible causes of its variability".ATMOSPHERIC RESEARCH 252(2021).