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Assessment of Interannual Sea Surface Salinity Variability and Its Effects on the Barrier Layer in the Equatorial Pacific Using BNU-ESM
Zhi, Hai1,2; Zhang, Rong-Hua3; Zheng, Fei4; Lin, Pengfei5; Wang, Lanning6; Yu, Peng7
2016-03-01
发表期刊ADVANCES IN ATMOSPHERIC SCIENCES
卷号33期号:3页码:339-351
文章类型Article
摘要As salinity stratification is necessary to form the barrier layer (BL), the quantification of its role in BL interannual variability is crucial. This study assessed salinity variability and its effect on the BL in the equatorial Pacific using outputs from Beijing Normal University Earth System Model (BNU-ESM) simulations. A comparison between observations and the BNU-ESM simulations demonstrated that BNU-ESM has good capability in reproducing most of the interannual features observed in nature. Despite some discrepancies in both magnitude and location of the interannual variability centers, the displacements of sea surface salinity (SSS), barrier layer thickness (BLT), and SST simulated by BNU-ESM in the equatorial Pacific are realistic. During El Nino, for example, the modeled interannual anomalies of BLT, mixed layer depth, and isothermal layer depth, exhibit good correspondence with observations, including the development and decay of El Nino in the central Pacific, whereas the intensity of the interannual variabilities is weaker relative to observations. Due to the bias in salinity simulations, the SSS front extends farther west along the equator, whereas BLT variability is weaker in the central Pacific than in observations. Further, the BNU-ESM simulations were examined to assess the relative effects of salinity and temperature variability on BLT. Consistent with previous observation-based analyses, the interannual salinity variability can make a significant contribution to BLT relative to temperature in the western-central equatorial Pacific.
关键词Feedback Interannual Variability Sea Surface Salinity Barrier Layer Thickness
DOI10.1007/s00376-015-5163-y
收录类别SCI
语种英语
WOS记录号WOS:000370030300007
引用统计
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/112453
专题海洋环流与波动重点实验室
作者单位1.Nanjing Univ Informat Sci & Technol, Earth Syst Modeling Ctr, Nanjing 210044, Jiangsu, Peoples R China
2.Nanjing Univ Informat Sci & Technol, Coll Atmospher Sci, Nanjing 210044, Jiangsu, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
4.Chinese Acad Sci, Inst Atmospher Phys, Int Ctr Climate & Environm Sci, Beijing 100029, Peoples R China
5.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing 100029, Peoples R China
6.Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing 100875, Peoples R China
7.Univ Maryland, Cooperat Inst Climate & Satellites, College Pk, MD 20740 USA
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Zhi, Hai,Zhang, Rong-Hua,Zheng, Fei,et al. Assessment of Interannual Sea Surface Salinity Variability and Its Effects on the Barrier Layer in the Equatorial Pacific Using BNU-ESM[J]. ADVANCES IN ATMOSPHERIC SCIENCES,2016,33(3):339-351.
APA Zhi, Hai,Zhang, Rong-Hua,Zheng, Fei,Lin, Pengfei,Wang, Lanning,&Yu, Peng.(2016).Assessment of Interannual Sea Surface Salinity Variability and Its Effects on the Barrier Layer in the Equatorial Pacific Using BNU-ESM.ADVANCES IN ATMOSPHERIC SCIENCES,33(3),339-351.
MLA Zhi, Hai,et al."Assessment of Interannual Sea Surface Salinity Variability and Its Effects on the Barrier Layer in the Equatorial Pacific Using BNU-ESM".ADVANCES IN ATMOSPHERIC SCIENCES 33.3(2016):339-351.
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