干旱区生态环境知识资源中心(Arid): Spring Meteorological Drought over East Asia and Its Associations with Large-Scale Climate Variations

Arid

DOI	10.3390/w16111508
	Spring Meteorological Drought over East Asia and Its Associations with Large-Scale Climate Variations
	Gao, Meng; Ge, Ruijun; Wang, Yueqi
通讯作者	Gao, M
来源期刊	WATER
EISSN	2073-4441
出版年	2024
卷号	16 期号:11
英文摘要	East Asia is a region that is highly vulnerable to drought disasters during the spring season, as this period is critical for planting, germinating, and growing staple crops such as wheat, maize, and rice. The climate in East Asia is significantly influenced by three large-scale climate variations: the Pacific Decadal Oscillation (PDO), the El Ni & ntilde;o-Southern Oscillation (ENSO), and the Indian Ocean Dipole (IOD) in the Pacific and Indian Oceans. In this study, the spring meteorological drought was quantified using the standardized precipitation evapotranspiration index (SPEI) for March, April, and May. Initially, coupled climate networks were established for two climate variables: sea surface temperature (SST) and SPEI. The directed links from SST to SPEI were determined based on the Granger causality test. These coupled climate networks revealed the associations between climate variations and meteorological droughts, indicating that semi-arid areas are more sensitive to these climate variations. In the spring, PDO and ENSO do not cause extreme wetness or dryness in East Asia, whereas IOD does. The remote impacts of these climate variations on SPEI can be partially explained by atmospheric circulations, where the combined effects of air temperatures, winds, and air pressure fields determine the wet/dry conditions in East Asia.
英文关键词	SPEI drought climate network atmospheric circulation East Asia
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:001245289400001
WOS关键词	PACIFIC DECADAL OSCILLATION ; EL-NINO ; PRECIPITATION ; CHINA ; VARIABILITY ; MODELS ; TRENDS
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405872
推荐引用方式 GB/T 7714	Gao, Meng,Ge, Ruijun,Wang, Yueqi. Spring Meteorological Drought over East Asia and Its Associations with Large-Scale Climate Variations[J],2024,16(11).
APA	Gao, Meng,Ge, Ruijun,&Wang, Yueqi.(2024).Spring Meteorological Drought over East Asia and Its Associations with Large-Scale Climate Variations.WATER,16(11).
MLA	Gao, Meng,et al."Spring Meteorological Drought over East Asia and Its Associations with Large-Scale Climate Variations".WATER 16.11(2024).