干旱区生态环境知识资源中心(Arid): Spatial and temporal evolution characteristics of meteorological drought in the Northwest of Yellow River Basin and its response to large-scale climatic factors

Arid

DOI	10.2166/wcc.2022.535
	Spatial and temporal evolution characteristics of meteorological drought in the Northwest of Yellow River Basin and its response to large-scale climatic factors
	Fu, Yinghao; Shen, Xiaojing; Li, Wangcheng; Wu, Xu; Zhang, Qingqing
通讯作者	Shen, XJ
来源期刊	JOURNAL OF WATER AND CLIMATE CHANGE
ISSN	2040-2244
EISSN	2408-9354
出版年	2022
卷号	13 期号:12 页码:4283-4301
英文摘要	The Northwest of Yellow River Basin (YRB) is an arid and semi-arid region. This study employs wavelet analysis, dry area coverage, drought frequency, and Mann-Kendall test trend to investigates the evolution characteristics of drought in the Northwest of YRB and the impact of macro climatic conditions on drought. The scale of season and year Standardized Precipitation Evapotranspiration Index (SPEI) was mostly represented as alternating dry and wet weather in this region. SPEI decreased significantly in each season, indicating increased drought. The drought situation changed abruptly in 1968, and the change was more obvious around 2000. Drought trend in autumn is more noticeable than in the other three seasons. The average annual dry area covers 34%. The drought frequency in each station at the annual scale was between 30.78% and 46.15%, its high values are mainly concentrated in the western region. The main cycles of annual SPEI changes are 37 and 5 years; spring is 45 and 10 years; summer is 20 and 5 years; autumn is 36, 10, and 5 years; winter is 45, 22, and 5 years. Furthermore, drought occurrence and changes are closely related to large-scale climatic factors, with El Nino-Southern Oscillation having the greatest impact on drought.
英文关键词	changing trends drought Northwest of the Yellow River Basin Standard Precipitation Evapotranspiration Index
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:000905105700008
WOS关键词	EL-NINO ; INDEX ; PRECIPITATION ; TEMPERATURE ; REGION ; ENSO
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393641
推荐引用方式 GB/T 7714	Fu, Yinghao,Shen, Xiaojing,Li, Wangcheng,et al. Spatial and temporal evolution characteristics of meteorological drought in the Northwest of Yellow River Basin and its response to large-scale climatic factors[J],2022,13(12):4283-4301.
APA	Fu, Yinghao,Shen, Xiaojing,Li, Wangcheng,Wu, Xu,&Zhang, Qingqing.(2022).Spatial and temporal evolution characteristics of meteorological drought in the Northwest of Yellow River Basin and its response to large-scale climatic factors.JOURNAL OF WATER AND CLIMATE CHANGE,13(12),4283-4301.
MLA	Fu, Yinghao,et al."Spatial and temporal evolution characteristics of meteorological drought in the Northwest of Yellow River Basin and its response to large-scale climatic factors".JOURNAL OF WATER AND CLIMATE CHANGE 13.12(2022):4283-4301.