气候变化领域集成服务门户(CCPortal): Intraseasonal variations of the British

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DOI	10.1175/JCLI-D-19-0458.1
	Intraseasonal variations of the British–Baikal corridor pattern
	Xu P.; Wang L.; Chen W.; Chen G.; Kang I.-S.
发表日期	2020
ISSN	0894-8755
起始页码	2183
结束页码	2200
卷号	33 期号:6
英文摘要	The British–Baikal Corridor (BBC) pattern is the dominant waveguide mode trapped along the summertime polar front jet over northern Eurasia. It consists of four geographically fixed centers over the west of the British Isles, the Baltic Sea, western Siberia, and Lake Baikal, respectively. Its intraseasonal variations and dynamics are investigated based on reanalysis datasets. The BBC pattern has a life cycle of about two weeks. Its precursor could be traced back to an upstream wave packet propagating along the Atlantic jet 10 days before its peak, and its life cycle resembles the evolution of a quasi-stationary Rossby wave train. Diagnosis of the streamfunction tendency equation suggests that the growth and decay of the BBC pattern are primarily driven by the nonlinear processes, whereas the quasi-stationary feature of the BBC pattern arises from the cancellation among the linear processes. Energetics analysis indicates that the energy cycle with the transient eddies (TEs) plays an essential role in the growth and decay of the BBC pattern. The BBC pattern first feeds on the barotropic energy provided by the TEs and then returns the energy to TEs in the form of baroclinic energy. It is this nonlinear interaction with the TEs that poses a tough challenge to the current state-of-the-art models to capture the BBC pattern reasonably. © 2020 American Meteorological Society.
英文关键词	Artificial life; Lakes; Mechanical waves; Energetics analysis; Intraseasonal variations; Nonlinear interactions; Nonlinear process; Northern Eurasia; Quasi-stationary; State of the art; Streamfunction tendency; Nonlinear equations; baroclinic wave; data set; eddy; jet flow; nonlinearity; polar front; Rossby wave; seasonal variation; wave propagation; Atlantic Ocean; Baltic Sea; Lake Baikal; Russian Federation; Siberia; United Kingdom
语种	英语
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171399
作者单位	Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China; Earth System Modeling Center, Nanjing University of Information Science and Technology, Nanjing, China; Indian Ocean Operational Oceanographic Research Center, State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China
推荐引用方式 GB/T 7714	Xu P.,Wang L.,Chen W.,等. Intraseasonal variations of the British–Baikal corridor pattern[J],2020,33(6).
APA	Xu P.,Wang L.,Chen W.,Chen G.,&Kang I.-S..(2020).Intraseasonal variations of the British–Baikal corridor pattern.Journal of Climate,33(6).
MLA	Xu P.,et al."Intraseasonal variations of the British–Baikal corridor pattern".Journal of Climate 33.6(2020).