干旱区生态环境知识资源中心(Arid): Northwestward advance of the northern boundary of the East Asian summer monsoon over the 21st century in CMIP6 projections

Arid

DOI	10.1002/joc.8062
	Northwestward advance of the northern boundary of the East Asian summer monsoon over the 21st century in CMIP6 projections
	Wu, Beilei; Lang, Xianmei; Jiang, Dabang
通讯作者	Lang, XM
来源期刊	INTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN	0899-8418
EISSN	1097-0088
出版年	2023
卷号	43 期号:8 页码:3859-3876
英文摘要	The East Asian summer monsoon (EASM) projection has attracted much atten-tion, whereas there are few investigations on the future changes of the EASM northern boundary. The boundary migration would influence the distribution of precipitation and the related vegetation, and its projection is important for policy development of climate change adaptation. In this study, based on the median of 22 selected Coupled Model Intercomparison Project Phase 6 (CMIP6) models, the linear trends of meridional movement of the EASM northern boundary are found to be 0.45-1.39 degrees of latitude during 2015-2099 based on the three precipitation-based metrics under three shared socioeconomic pathway scenarios. Spatially, the multimetric climatological EASM northern boundary displays a 70-170 km northwestward advance during 2080-2099 compared to 1981-2010. Such an advance also holds true for most individual models, but the migration magni-tudes vary with metrics, scenarios and models. The strengthened EASM in associ-ation with the intensified land-sea thermal contrast and the enhanced atmospheric water vapour content in response to global warming account for the northwestward advance of the EASM northern boundary, which is related to the increased possibility of the negative phase of the Pacific decadal oscillation in the future. Additionally, the thermodynamic component due to the increased mois-ture content contributes more than the dynamic term arising from the reinforced EASM circulations to the intensified precipitation and northwestward migration of the EASM northern boundary. The future advance of the EASM northern boundary favours a northern flood and southern drought precipitation pattern over eastern China, which would partly mitigate drought conditions in northern arid regions.
英文关键词	East Asian summer monsoon eastern China future projection northern boundary
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000960644200001
WOS关键词	EL-NINO ; FUTURE CHANGES ; CLIMATE ; PRECIPITATION ; CHINA ; TEMPERATURE ; VARIABILITY ; VEGETATION ; FREQUENCY ; PHASE
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396972
推荐引用方式 GB/T 7714	Wu, Beilei,Lang, Xianmei,Jiang, Dabang. Northwestward advance of the northern boundary of the East Asian summer monsoon over the 21st century in CMIP6 projections[J],2023,43(8):3859-3876.
APA	Wu, Beilei,Lang, Xianmei,&Jiang, Dabang.(2023).Northwestward advance of the northern boundary of the East Asian summer monsoon over the 21st century in CMIP6 projections.INTERNATIONAL JOURNAL OF CLIMATOLOGY,43(8),3859-3876.
MLA	Wu, Beilei,et al."Northwestward advance of the northern boundary of the East Asian summer monsoon over the 21st century in CMIP6 projections".INTERNATIONAL JOURNAL OF CLIMATOLOGY 43.8(2023):3859-3876.