气候变化领域集成服务门户(CCPortal): The atmospheric responses to the intensity variability of subtropical front in the wintertime North Pacific

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DOI	10.1007/s00382-018-4468-9
	The atmospheric responses to the intensity variability of subtropical front in the wintertime North Pacific
	Wang L.Y.; Hu H.B.; Yang X.Q.
发表日期	2019
ISSN	0930-7575
起始页码	5623
结束页码	5639
卷号	52 期号:2020-09-10
英文摘要	The atmospheric responses to the intensity variability of subtropical front zone (STFZ) in the wintertime North Pacific are investigated in both observation and sensitivity experiments using weather research and forecasting model (version 3.4.1). The STFZ is artificially intensified by applying a sea surface temperature (SST) anomaly within STFZ in sensitivity experiments. Results from observation and experiments indicate that the enhanced STFZ strengthens the meridional temperature gradient and thus the atmospheric baroclinicity, inducing more active transient eddies. The stronger transient eddy vorticity forcing accelerates the polar front jet with equivalent barotropic structure. The results of sensitivity experiments suggest the atmospheric responses are linear and symmetrical to the variation of STFZ intensity within its natural variability. However, the anomalies of atmospheric upstream condition and large-scale SST also have great impacts on the midlatitude atmosphere over North Pacific, in comparison with the effect of STFZ intensity variability. Therefore, It suggests carefully verification of the atmospheric responses found in the observations and numerical experiments. © 2018, The Author(s).
英文关键词	Intensity variation; Midlatitude air–sea interaction; North Pacific STFZ; Synoptic-scale transient eddy
语种	英语
scopus关键词	air-sea interaction; atmospheric front; baroclinic motion; sea surface temperature; synoptic meteorology; temperature anomaly; temperature gradient; vorticity; winter; 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/146306
作者单位	Zhejiang Meteorological Observatory, Hangzhou, 310017, China; CMA-NJU Joint Laboratory for Climate Prediction Studies, Instituted for Climate and Global Change Research, School of Atmospheric Science, Nanjing University, Nanjing, 210093, China; Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science and Technology, Nanjing, 210044, China
推荐引用方式 GB/T 7714	Wang L.Y.,Hu H.B.,Yang X.Q.. The atmospheric responses to the intensity variability of subtropical front in the wintertime North Pacific[J],2019,52(2020-09-10).
APA	Wang L.Y.,Hu H.B.,&Yang X.Q..(2019).The atmospheric responses to the intensity variability of subtropical front in the wintertime North Pacific.Climate Dynamics,52(2020-09-10).
MLA	Wang L.Y.,et al."The atmospheric responses to the intensity variability of subtropical front in the wintertime North Pacific".Climate Dynamics 52.2020-09-10(2019).