干旱区生态环境知识资源中心(Arid): Impact of ENSO Events on Droughts in China

Arid

DOI	10.3390/atmos13111764
	Impact of ENSO Events on Droughts in China
	Lv, Aifeng; Fan, Lei; Zhang, Wenxiang
通讯作者	Lv, A
来源期刊	ATMOSPHERE
EISSN	2073-4433
出版年	2022
卷号	13 期号:11
英文摘要	The El Nino Southe58rn Oscillation (ENSO) is a typical oscillation affecting climate change, and its stable periodicity, long-lasting effect, and predictable characteristics have become important indicators for regional climate prediction. In this study, we analyze the Standardized Precipitation Evapotranspiration Index (SPEI), the Nino3.4 index, the Southern Oscillation Index (SOI), and the Multivariate ENSO Index (MEI). Additionally, we explore the spatial and temporal distribution of the correlation coefficients between ENSO and SPEI and the time lag between ENSO events of varying intensities and droughts. The results reveal that the use of Nino3.4, MEI, and SOI produces differences in the occurrence time, end time, and intensity of ENSO events. Nino3.4 and MEI produce similar results for identifying ENSO events, and the Nino3.4 index accurately identifies and describes ENSO events with higher reliability. In China, the drought-sensitive areas vulnerable to ENSO events include southern China, the Jiangnan region, the middle and lower reaches of the Yangtze River, and the arid and semi-arid areas of northwestern China. Droughts in these areas correlate significantly with meteorological drought, and time-series correlations between ENSO events and droughts are significantly stronger in regions close to the ocean. Drought occurrence lags ENSO events: when using the Nino3.4 index to identify ENSO, droughts lag the strongest and weakest El Nino events by 0-12 months. However, when using the MEI as a criterion for ENSO, droughts lag the strongest and weakest El Nino events by 0-7 months. The time lag between the strongest ENSO event and drought is shorter than that for the weakest ENSO event, and droughts have a wider impact. The results of this study can provide a climate-change-compatible basis for drought monitoring and prediction.
英文关键词	ENSO drought intensity of ENSO China
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:000881045400001
WOS关键词	NINO-SOUTHERN-OSCILLATION ; RIVER-BASIN ; PRECIPITATION ; RAINFALL ; VARIABILITY ; IDENTIFICATION ; PREDICTION ; PROVINCE ; SPELLS
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391931
推荐引用方式 GB/T 7714	Lv, Aifeng,Fan, Lei,Zhang, Wenxiang. Impact of ENSO Events on Droughts in China[J],2022,13(11).
APA	Lv, Aifeng,Fan, Lei,&Zhang, Wenxiang.(2022).Impact of ENSO Events on Droughts in China.ATMOSPHERE,13(11).
MLA	Lv, Aifeng,et al."Impact of ENSO Events on Droughts in China".ATMOSPHERE 13.11(2022).