气候变化领域集成服务门户(CCPortal): Association of the Zonal Migration of North Pacific Storm Track With the East Asian Monsoon in Boreal Wintertime

CCPortal

DOI	10.1029/2020JD033790
	Association of the Zonal Migration of North Pacific Storm Track With the East Asian Monsoon in Boreal Wintertime
	Yang M.; Li C.; Li X.; Tan Y.; Wu Y.; Chen X.; Xia F.
发表日期	2021
ISSN	2169897X
卷号	126 期号:4
英文摘要	The winter North Pacific storm track (WNPST) distinctly manipulates weather and climate in the midlatitudes. Thus, it is necessary to comprehend the factors and related mechanisms governing the location and intensity of WNPST. In the present study, the influence of the East Asian winter monsoon (EAWM) on the zonal movement of the WNPST represented by the lower-tropospheric meridional eddy heat flux is investigated, and the possible physical processes are analyzed. There is a significantly positive correlation, especially interannual signal, between the strength of the EAWM and the zonal position of the WNPST. The Liang-Kleeman information flow theory is used to prove the mutual causality between the intensity of EAWM and the zonal migration of WNPST. The EAWM-related intensity anomaly pattern of the WNPST, with prominently negative anomalies over the northwest Pacific and significantly positive anomalies over the northeast Pacific, is associated with the eastward movement of the WNPST. In addition, the results show that the patterns of anomalous lower-tropospheric atmospheric baroclinicity and barotropic energy transfer do not match the EAWM-related anomalous WNPST. The upper-tropospheric jet anomalies may be related to the weakening in the peak area and the western flank of the climatological WNPST. The impact of the EAWM on the zonal movement of the WNPST can be related to the anomalous baroclinic energy transfer and buoyancy conversion. Furthermore, the moisture effect including anomalous meridional and vertical eddy moisture flux may also play a role by latent heat release. © 2021. American Geophysical Union. All Rights Reserved.
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185485
作者单位	College of Meteorology and Oceanography, National University of Defense Technology, Nanjing, China; State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Department of Atmospheric and Oceanic Sciences & Institute of Atmospheric Sciences, Fudan University, Shanghai, China
推荐引用方式 GB/T 7714	Yang M.,Li C.,Li X.,et al. Association of the Zonal Migration of North Pacific Storm Track With the East Asian Monsoon in Boreal Wintertime[J],2021,126(4).
APA	Yang M..,Li C..,Li X..,Tan Y..,Wu Y..,...&Xia F..(2021).Association of the Zonal Migration of North Pacific Storm Track With the East Asian Monsoon in Boreal Wintertime.Journal of Geophysical Research: Atmospheres,126(4).
MLA	Yang M.,et al."Association of the Zonal Migration of North Pacific Storm Track With the East Asian Monsoon in Boreal Wintertime".Journal of Geophysical Research: Atmospheres 126.4(2021).