Associations of atmospheric teleconnections with wintertime extratropical cyclones over East Asia and Northwest Pacific

doi:10.1007/s00382-021-05795-9

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 海岸带信息集成与综合管理实验室

	Associations of atmospheric teleconnections with wintertime extratropical cyclones over East Asia and Northwest Pacific
	Gao, Meng 1,3,4; Sun, Yidi 2,3; Zheng, Qian 2,3
刊名	CLIMATE DYNAMICS
	2021-05-10
页码	14
关键词	Hexagon grid Teleconnection pattern Inhomogenous Poisson process Generalized linear model
ISSN号	0930-7575
DOI	10.1007/s00382-021-05795-9
通讯作者	Gao, Meng(mgao@yic.ac.cn)
英文摘要	Extratropical cyclones (ETCs) over East Asia and Northwest Pacific are identified and tracked by applying an objective algorithm to the 850-hPa relative vorticity fields from the ERA-Interim reanalysis. A total of 2866 ETCs originating at the western side of the date line have been identified in the extended November-March winters from 1979 to 2018. The ETC tracks are counted and visualized using a hexagonal tessellation rather than the regular longitude-latitude grids. Two generalized linear models (GLMs), Poisson regression model and Gamma regression model, are firstly applied to investigate the associations of wintertime ETCs with three atmospheric teleconnection patterns. The West Pacific (WP) pattern and the Pacific/North American (PNA) pattern are more responsible for the meridional variability of ETC activities in the North Pacific, while the influence of the Polar/Eurasia pattern on ETC activities is negligible. Results of composite analysis are qualitatively consistent with that of regression analysis. Composite maps of differences of jet stream, thermal gradient and mid-tropospheric baroclinicity in the positive and negative phases of teleconnection patterns also support the close associations of ETC activities with WP and PNA teleconnection patterns.
资助项目	Key Deployment Project of Center for Ocean Mega-Science, CAS[COMS2019J02] ; Key Research Program of Frontier Science of Chinese Academy of Sciences[ZDBS-LY-7010] ; National Natural Science Foundation of China[31570423] ; Key Program of Shandong Natural Science Foundation[ZR2020KF031] ; Youth Innovation Promotion Association of CAS[2016195]
WOS关键词	NORTHERN-HEMISPHERE WINTER ; SYNOPTIC ANALYSIS ; CLIMATOLOGY ; VARIABILITY ; CYCLOGENESIS ; VORTICITY ; CLASSIFICATION ; PERSPECTIVES ; SENSITIVITY ; PATTERNS
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
WOS记录号	WOS:000648849200003
资助机构	Key Deployment Project of Center for Ocean Mega-Science, CAS ; Key Research Program of Frontier Science of Chinese Academy of Sciences ; National Natural Science Foundation of China ; Key Program of Shandong Natural Science Foundation ; Youth Innovation Promotion Association of CAS
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/27283]
专题	烟台海岸带研究所_海岸带信息集成与综合管理实验室烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者	Gao, Meng
作者单位	1.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 4.Yantai Univ, Sch Math & Informat Sci, Yantai 264005, Peoples R China
推荐引用方式 GB/T 7714	Gao, Meng,Sun, Yidi,Zheng, Qian. Associations of atmospheric teleconnections with wintertime extratropical cyclones over East Asia and Northwest Pacific[J]. CLIMATE DYNAMICS,2021:14.
APA	Gao, Meng,Sun, Yidi,&Zheng, Qian.(2021).Associations of atmospheric teleconnections with wintertime extratropical cyclones over East Asia and Northwest Pacific.CLIMATE DYNAMICS,14.
MLA	Gao, Meng,et al."Associations of atmospheric teleconnections with wintertime extratropical cyclones over East Asia and Northwest Pacific".CLIMATE DYNAMICS (2021):14.