干旱区生态环境知识资源中心(Arid): Atmospheric Circumglobal Teleconnection Triggered by Spring Land Thermal Anomalies over West Asia and Its Possible Impacts on Early Summer Climate over Northern China

Arid

DOI	10.1175/JCLI-D-20-0911.1
	Atmospheric Circumglobal Teleconnection Triggered by Spring Land Thermal Anomalies over West Asia and Its Possible Impacts on Early Summer Climate over Northern China
	Yang, Jingqiu; Chen, Haishan; Song, Yidi; Zhu, Siguang; Zhou, Botao; Zhang, Jie
通讯作者	Chen, HS (corresponding author), Nanjing Univ Informat Sci & Technol, KLME CIC FEMD ILECE, Nanjing, Peoples R China. ; Chen, HS (corresponding author), Nanjing Univ Informat Sci & Technol, Sch Atmospher Sci, Nanjing, Peoples R China.
来源期刊	JOURNAL OF CLIMATE
ISSN	0894-8755
EISSN	1520-0442
出版年	2021
卷号	34 期号:14 页码:5999-6021
英文摘要	The Eurasian continent experienced significant warming during the past decades. West Asia is located in an arid/semiarid zone, and its warming amplification has drawn considerable attention. However, the climatic effect of such a warming is not clear yet. In this study, we explored the possible impacts of recent land surface warming over West Asia on the atmospheric general circulation and climate. Results show that abnormal spring land surface warming over West Asia tends to increase precipitation over North China and decrease (increase) precipitation (air temperature) over Northeast China in early summer (June). It is noted that the precipitation anomalies are much stronger over the eastern region of North/Northeast China. Further analysis suggests that abnormal spring land surface warming can trigger eastward-propagating disturbances via diabatic heating, which intensifies the atmospheric circumglobal teleconnection (CGT) pattern, causing anomalous circulation and climate in early summer over northern China. Sensitivity experiments demonstrate that abnormal spring land surface warming can increase the atmospheric baroclinic instability and trigger Rossby waves that propagate along the westerly jet stream (WJS), resulting in the formation of CGT. Due to persistent land surface thermal forcing and the interaction between the basic flow (especially the WJS) and CGT, the CGT tends to be intensified. The anomalous wave center over East Asia in early summer is responsible for the precipitation increases (decreases) over North (Northeast) China and the evident warming in Northeast China. Our results suggest that the spring land surface thermal anomalies over West Asia can be a potential signal for short-term prediction of early summer climate over northern China.
英文关键词	Land surface Atmosphere-land interaction Teleconnections Dynamics Climate variability
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000668206100023
WOS关键词	ROSSBY-WAVE PROPAGATION ; SOUTHWEST ASIA ; EAST-ASIA ; INTERANNUAL VARIABILITY ; EURASIAN CONTINENT ; PLANETARY-WAVES ; TIBETAN PLATEAU ; SNOW COVER ; SURFACE ; PRECIPITATION
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	南京信息工程大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368081
作者单位	[Yang, Jingqiu; Chen, Haishan; Song, Yidi; Zhu, Siguang; Zhou, Botao; Zhang, Jie] Nanjing Univ Informat Sci & Technol, KLME CIC FEMD ILECE, Nanjing, Peoples R China; [Yang, Jingqiu; Chen, Haishan; Song, Yidi; Zhu, Siguang; Zhou, Botao; Zhang, Jie] Nanjing Univ Informat Sci & Technol, Sch Atmospher Sci, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Yang, Jingqiu,Chen, Haishan,Song, Yidi,et al. Atmospheric Circumglobal Teleconnection Triggered by Spring Land Thermal Anomalies over West Asia and Its Possible Impacts on Early Summer Climate over Northern China[J]. 南京信息工程大学,2021,34(14):5999-6021.
APA	Yang, Jingqiu,Chen, Haishan,Song, Yidi,Zhu, Siguang,Zhou, Botao,&Zhang, Jie.(2021).Atmospheric Circumglobal Teleconnection Triggered by Spring Land Thermal Anomalies over West Asia and Its Possible Impacts on Early Summer Climate over Northern China.JOURNAL OF CLIMATE,34(14),5999-6021.
MLA	Yang, Jingqiu,et al."Atmospheric Circumglobal Teleconnection Triggered by Spring Land Thermal Anomalies over West Asia and Its Possible Impacts on Early Summer Climate over Northern China".JOURNAL OF CLIMATE 34.14(2021):5999-6021.