气候变化领域集成服务门户(CCPortal): Remote modulation of sub-seasonal soil moisture on clustered extreme precipitation in Northern China

CCPortal

DOI	10.1007/s00382-024-07230-1
	Remote modulation of sub-seasonal soil moisture on clustered extreme precipitation in Northern China
	Liu, Jiang; Zhang, Jie; Du, Yibo; Hu, Rui; Ma, Qianrong; Kan, Heng; Sha, Sha; Kuang, Yuxin
发表日期	2024
ISSN	0930-7575
EISSN	1432-0894
英文摘要	Clustered extreme precipitation (CEP) events draw worldwide attention due to their non-neglectable impacts on socio-economic activities. This study focuses on the typical circulations associated with CEP events in Northern China and investigates the role of hydro-thermal processes over Eurasia. Based on the Self-organizing map method, there are two types of circulations closely related to the occurrence of CEP events over Northern China. One of them features a short wave and a subtropical high. Another shows a northern cyclone and high pressure around the sea of Okhotsk. The anomalous soil moisture (SM) over the Eastern Caspian Sea (ECS) and Northern Tibet Plateau (NTP) at the quasi-biweekly time scale dominates the typical circulations and CEP events over Northern China, rather than local forcing. On the one hand, decreased SM over the ECS induces the eastward movements of short-wave disturbances, along with the westward extension of the strengthened Western Pacific Subtropical High, favoring the increased precipitation over Northern China. On the other hand, increased SM over the NTP contributes to the meridional circulation and enhanced long-wave ridge, coupled with the northern cyclone at the lower level, finally leading to increases in precipitation over Northern China. The results may be useful for the predictions of CEP events in Northern China.
英文关键词	Clustered extreme precipitation; Hydro-thermal processes; Remote modulation; Self-organizing Map (SOM); Northern China
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:001207110100001
来源期刊	CLIMATE DYNAMICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/297728
作者单位	Nanjing University of Information Science & Technology; Yangzhou University; Nanjing Agricultural University
推荐引用方式 GB/T 7714	Liu, Jiang,Zhang, Jie,Du, Yibo,et al. Remote modulation of sub-seasonal soil moisture on clustered extreme precipitation in Northern China[J],2024.
APA	Liu, Jiang.,Zhang, Jie.,Du, Yibo.,Hu, Rui.,Ma, Qianrong.,...&Kuang, Yuxin.(2024).Remote modulation of sub-seasonal soil moisture on clustered extreme precipitation in Northern China.CLIMATE DYNAMICS.
MLA	Liu, Jiang,et al."Remote modulation of sub-seasonal soil moisture on clustered extreme precipitation in Northern China".CLIMATE DYNAMICS (2024).