globalchange  > 影响、适应和脆弱性
DOI: 10.1007/s00382-017-3689-7
Scopus ID: 2-s2.0-85018492651
Westerly wind bursts simulated in CAM4 and CCSM4
Author: Lian T.; Tang Y.; Zhou L.; Islam S.U.; Zhang C.; Li X.; Ling Z.
Source Publication: Climate Dynamics
ISSN: 9307575
Publishing Year: 2018
Volume: 50, Issue:2018-03-04
pages begin: 1353
pages end: 1371
Language: 英语
Scopus Keyword: atmosphere-ocean coupling ; atmospheric modeling ; climate modeling ; El Nino-Southern Oscillation ; Madden-Julian oscillation ; surface temperature ; westerly ; Pacific Ocean ; Pacific Ocean (Equatorial)
English Abstract: The equatorial westerly wind bursts (WWBs) play an important role in modulating and predicting the El Niño-Southern Oscillation (ENSO). In this study, the ability of the Community Atmospheric Model version 4 (CAM4) and the Community Climate System Model version 4 (CCSM4) in simulating WWBs is systematically evaluated. Many characteristics of WWBs, including their longitude distributions, durations, zonal extensions, variabilities at seasonal, intraseasonal, and interannual timescales, as well as their relations with the Madden–Julian Oscillation (MJO) and ENSO, are discussed. Generally speaking, these characteristics of WWBs can be successfully reproduced by CAM4, owning to the improvement of the deep convection in the model. In CCSM4, significant bias such as the lack of the equatorial Pacific WWBs in boreal spring season and the weak modulation by a strong MJO are found. Our findings confirm the fact that the WWBs are greatly modulated by the surface temperature. It’s also suggested that improving the air-sea coupling in CCSM4 may improve model performance in simulating WWBs, and may further improve the predictability of ENSO in the coupled model. © 2017, The Author(s).
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Document Type: 期刊论文
Appears in Collections:影响、适应和脆弱性

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Affiliation: State Key Lab of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Hangzhou, China; Environmental Science and Engineering, University of Northern British Columbia, Prince George, Canada; Institute of Oceanography, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China; Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266061, China; Guangdong Key Laboratory of Coastal Ocean Variability and Disaster Prediction, Guangdong Ocean University, Zhanjiang, China

Recommended Citation:
Lian T.,Tang Y.,Zhou L.,et al. Westerly wind bursts simulated in CAM4 and CCSM4[J]. Climate Dynamics,2018-01-01,50(2018-03-04)
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