干旱区生态环境知识资源中心(Arid): Dominant patterns of dryness/wetness variability in the Huang-Huai-Hai River Basin and its relationship with multiscale climate oscillations

Arid

DOI	10.1016/j.atmosres.2020.105148
	Dominant patterns of dryness/wetness variability in the Huang-Huai-Hai River Basin and its relationship with multiscale climate oscillations
	Hu, Wenting; She, Dunxian; Xia, Jun; He, Bian; Hu, Chen
通讯作者	Hu, WT ; She, DX
来源期刊	ATMOSPHERIC RESEARCH
ISSN	0169-8095
EISSN	1873-2895
出版年	2021
卷号	247
英文摘要	The understanding of dryness/wetness variability and its causes is vital for better water resources management, especially in precipitation deficit regions. This study assesses the behavior and potential risk of summer meteorological dryness/wetness, characterized by the Standardized Precipitation Evapotranspiration Index (SPEI), in the semiarid Huang-Huai-Hai (HHH) River Basin in northern China using Precipitation (P) and Potential Evapotranspiration (ET0) data of 186 stations during 1960-2017. The dominant patterns of dryness/wetness variability in the HHH river basin and the connections with atmospheric circulation and multiscale climate oscillations are also detected. The results show that (1) a general wetting trend can be detected in the HHH during summer using the rank-based nonparametric Mann-Kendall test, which is largely related to the increase in summer P and decrease in summer ET0, and the trends in summer SPEI based dryness/wetness are more sensitive to the changes in ET0 than in P; (2) the patterns of dryness/wetness variability over the HHH river basin can be dominantly represented by three leading Empirical Orthogonal Function (EOF) modes, which are strongly influenced by large-scale atmospheric circulations, such as the excessive (insufficient) precipitation, upward (downward) vertical motion and moisture convergence (divergence); and (3) the multiscale climate modes have significant effects on the dryness/wetness variability, which confirms the interactions between multiple lowfrequency oscillations and the meteorological processes in the HHH river basin. The results of this study will be beneficial for water resources management, drought/flood forecast, and preparations for potential drought/ flood hazards in the HHH River Basin and will also be a valuable reference for other arid and semiarid areas.
英文关键词	SPEI Huang-Huai-Hai River basin Dryness/wetness variability Atmospheric circulation Climate modes
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000586020600011
WOS关键词	ASIAN SUMMER MONSOON ; SPATIOTEMPORAL DROUGHT VARIABILITY ; INDIAN-OCEAN DIPOLE ; EXTREME-DRY-SPELL ; MONGOLIAN PLATEAU ; LOESS PLATEAU ; PRECIPITATION ; EVAPOTRANSPIRATION ; TRENDS ; INDEX
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	中国科学院大气物理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327968
作者单位	[Hu, Wenting; She, Dunxian; Xia, Jun; Hu, Chen] Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R China; [Hu, Wenting; He, Bian; Hu, Chen] Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing 100029, Peoples R China; [She, Dunxian; Xia, Jun] Wuhan Univ, Hubei Key Lab Water Syst Sci Sponge City Construc, Wuhan 430072, Peoples R China
推荐引用方式 GB/T 7714	Hu, Wenting,She, Dunxian,Xia, Jun,et al. Dominant patterns of dryness/wetness variability in the Huang-Huai-Hai River Basin and its relationship with multiscale climate oscillations[J]. 中国科学院大气物理研究所,2021,247.
APA	Hu, Wenting,She, Dunxian,Xia, Jun,He, Bian,&Hu, Chen.(2021).Dominant patterns of dryness/wetness variability in the Huang-Huai-Hai River Basin and its relationship with multiscale climate oscillations.ATMOSPHERIC RESEARCH,247.
MLA	Hu, Wenting,et al."Dominant patterns of dryness/wetness variability in the Huang-Huai-Hai River Basin and its relationship with multiscale climate oscillations".ATMOSPHERIC RESEARCH 247(2021).