干旱区生态环境知识资源中心(Arid): Evolutional Characteristics of Regional Meteorological Drought and Their Linkages with Southern Oscillation Index across the Loess Plateau of China during 1962-2017

Arid

DOI	10.3390/su12187237
	Evolutional Characteristics of Regional Meteorological Drought and Their Linkages with Southern Oscillation Index across the Loess Plateau of China during 1962-2017
	Li, Ming; Cao, Fuqiang; Wang, Guiwen; Chai, Xurong; Zhang, Lianzhi
通讯作者	Li, M ; Wang, GW
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2020
卷号	12 期号:18
英文摘要	The Loess Plateau of China (CLP) is located in the transition zone from a semi-humid climate zone to semi-arid and arid climate zones. It is influenced by the westerly circulation, plateau monsoon, and East Asian monsoon circulation, and the drought disasters across the CLP have obvious regional characteristics. In this study, climate regionalization was performed by a spatial hierarchical cluster approach based on the gridded datasets of monthly precipitation across the CLP from 1961 to 2017. Then, the standardized precipitation index (SPI) was used to explore the temporal evolution of regional meteorological droughts. Finally, wavelet methods were used to investigate the drought cycles in each homogeneous subregion and the linkages between SPI and the Southern Oscillation Index (SOI). The results show that: (1) Spatially, the CLP can be divided into four homogeneous regions, namely, Ordos Plateau semi-arid area (Region I), Northern Shanxi hilly semi-humid area (Region II), Longzhong plateau cold-arid area (Region III), and Fenwei Plain and Shaanxi-Shanxi hilly semi-humid area (Region IV). (2) There are apparent differences in the temporal evolution of meteorological droughts in different subregions, but two wet periods from the 1960s to 1980s and 2010s, and a drought period in the 1990s, can be found in each subregion. (3) There is a significant drought cycle of 3-8 years in the four subregions, and the first main cycles of drought variation are not completely consistent. (4) The linkages between SPI and SOI are time- and space-dependent and the phase differences are dominated by in-phase. The strongest correlations between the two time series occur in the 1980s in the four subregions. The results of this research have important implications for the establishment of drought monitoring programs in homogeneous climate regions, and informed decision making in water resource management.
英文关键词	Loess Plateau regional drought climate regionalization continuous wavelet transform cross wavelet transform wavelet coherence
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000584219500001
WOS关键词	SUMMER MONSOON ; CLIMATE-CHANGE ; PRECIPITATION ; VARIABILITY ; FREQUENCY ; PATTERNS ; CLUSTER ; ENSO ; PREDICTION ; TREND
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327217
作者单位	[Li, Ming; Cao, Fuqiang; Wang, Guiwen; Chai, Xurong] Shanxi Normal Univ, Sch Geog Sci, Linfen 041000, Shanxi, Peoples R China; [Li, Ming] Shanxi Normal Univ, Modern Coll Arts & Sci, Linfen 041000, Shanxi, Peoples R China; [Zhang, Lianzhi] Shanxi Normal Univ, Lib Shanxi Normal Univ, Linfen 041000, Shanxi, Peoples R China
推荐引用方式 GB/T 7714	Li, Ming,Cao, Fuqiang,Wang, Guiwen,et al. Evolutional Characteristics of Regional Meteorological Drought and Their Linkages with Southern Oscillation Index across the Loess Plateau of China during 1962-2017[J],2020,12(18).
APA	Li, Ming,Cao, Fuqiang,Wang, Guiwen,Chai, Xurong,&Zhang, Lianzhi.(2020).Evolutional Characteristics of Regional Meteorological Drought and Their Linkages with Southern Oscillation Index across the Loess Plateau of China during 1962-2017.SUSTAINABILITY,12(18).
MLA	Li, Ming,et al."Evolutional Characteristics of Regional Meteorological Drought and Their Linkages with Southern Oscillation Index across the Loess Plateau of China during 1962-2017".SUSTAINABILITY 12.18(2020).