气候变化领域集成服务门户(CCPortal): A study of the effects of westerly wind bursts on ENSO based on CESM

CCPortal

DOI	10.1007/s00382-019-05034-2
	A study of the effects of westerly wind bursts on ENSO based on CESM
	Tan X.; Tang Y.; Lian T.; Yao Z.; Li X.; Chen D.
发表日期	2020
ISSN	0930-7575
起始页码	885
结束页码	899
卷号	54 期号:2020-01-02
英文摘要	Numerous works have indicated that westerly wind bursts (WWBs) have a significant contribution to the development of El Niño events. However, the simulation of WWBs commonly suffers from large biases in the current generation of coupled general circulation models (CGCMs), limiting our ability to predict El Niño events. In this study, we introduce a WWBs parameterization scheme into the global coupled Community Earth System Model (CESM) to improve the representation of WWBs and to study the impacts of WWBs on El Niño-Southern Oscillation (ENSO) characteristics. It is found that CESM with the WWBs parameterization scheme can generate more realistic characteristics of WWBs, in particular their location and seasonal variation of occurrence. With the parameterized WWBs, the skewness of the Niño 3 index is increased, in better agreement with observation. Eastern Pacific El Niño and central Pacific El Niño events could be successfully reproduced in the model run with WWBs parameterization. Further diagnoses show that the enhanced horizontal advection in the central Pacific and vertical advection in the eastern Pacific, both of which are triggered by WWBs, are crucial factors responsible for the improvements in ENSO simulation. Clearly, WWBs have important effects on ENSO asymmetry and ENSO diversity. © 2019, The Author(s).
英文关键词	Asymmetry; Diversity; ENSO; Parameterization; WWBs
语种	英语
scopus关键词	asymmetry; computer simulation; El Nino-Southern Oscillation; general circulation model; parameterization; westerly; wind velocity; Pacific Ocean; Pacific Ocean (Central); Pacific Ocean (East)
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/145723
作者单位	State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China; Environmental Science and Engineering, University of Northern British Columbia, Prince George, Canada
推荐引用方式 GB/T 7714	Tan X.,Tang Y.,Lian T.,et al. A study of the effects of westerly wind bursts on ENSO based on CESM[J],2020,54(2020-01-02).
APA	Tan X.,Tang Y.,Lian T.,Yao Z.,Li X.,&Chen D..(2020).A study of the effects of westerly wind bursts on ENSO based on CESM.Climate Dynamics,54(2020-01-02).
MLA	Tan X.,et al."A study of the effects of westerly wind bursts on ENSO based on CESM".Climate Dynamics 54.2020-01-02(2020).