气候变化领域集成服务门户(CCPortal): North Pacific storm track response to the mesoscale SST in a global high-resolution atmospheric model

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DOI	10.1007/s00382-020-05343-x
	North Pacific storm track response to the mesoscale SST in a global high-resolution atmospheric model
	Zhang C.; Liu H.; Xie J.; Lin P.; Li C.; Yang Q.; Song J.
发表日期	2020
ISSN	0930-7575
起始页码	1597
结束页码	1611
卷号	55
英文摘要	The response of the North Pacific storm track to the mesoscale sea surface temperature (SST) in winter is investigated via a global high-resolution atmospheric model. A simulation forced by eddy-resolving SST is compared with a simulation in which the mesoscale SST is filtered out. The results show that removing the mesoscale SST could greatly influence the storm track in the free atmosphere, with a significant decrease of approximately 20% in the local region and a southward shift downstream over the eastern North Pacific. Compared with those in previous studies, the responses of the storm track seem to be independent from models. The underlying mechanism is that changes in the boundary layer induced by mesoscale SST lead to convergence at the surface through pressure adjustment, forcing a secondary circulation along Kuroshio and Oyashio confluence region (KOCR). Then the winter mean vertical eddy fluxes are greatly suppressed over KOCR after removing the mesoscale SST, transporting less heat and moisture into the free atmosphere. Furthermore, the response of baroclinicity and baroclinic energy conversion was investigated, which bears much resemblance with the changes of storm track, indicating the important role on the response of storm track to mesoscale SST. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Air–sea interaction; CAM4; Mesoscale SST; Storm track
语种	英语
scopus关键词	air-sea interaction; atmospheric modeling; baroclinic mode; confluence; mesoscale eddy; sea surface temperature; storm track; Pacific Ocean; Pacific Ocean (North)
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145350
作者单位	College of Meteorology and Oceanography, National University of Defense Technology, Nanjing, 211101, China; State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Zhang C.,Liu H.,Xie J.,et al. North Pacific storm track response to the mesoscale SST in a global high-resolution atmospheric model[J],2020,55.
APA	Zhang C..,Liu H..,Xie J..,Lin P..,Li C..,...&Song J..(2020).North Pacific storm track response to the mesoscale SST in a global high-resolution atmospheric model.Climate Dynamics,55.
MLA	Zhang C.,et al."North Pacific storm track response to the mesoscale SST in a global high-resolution atmospheric model".Climate Dynamics 55(2020).