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| Equatorward shift of annual Rossby waves in the Equatorial Pacific Ocean | |
Ma Xiao1,2 ; Sun Che1
| |
| 2016 | |
| 发表期刊 | CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
 |
| 卷号 | 34期号:1页码:212-218 |
| 文章类型 | Article |
| 摘要 | Annual Rossby wave is a key component of the ENSO phenomenon in the equatorial Pacific Ocean. Due to the paucity and seasonal bias in historical hydrographic data, previous studies on equatorial Rossby waves only gave qualitative description. The accumulation of Argo measurements in recent years has greatly alleviated the data problem. In this study, seasonal variation of the equatorial Pacific Ocean is examined with annual harmonic analysis of Argo gridded data. Results show that strong seasonal signal is present in the western equatorial Pacific and explains more than 50% of the thermal variance below 500 m. Lag-correlation tracing further shows that this sub-thermocline seasonal signal originates from the eastern equatorial Pacific via downward and southwestward propagation of annual Rossby waves. Possible mechanisms for the equatorward shift of Rossby wave path are also discussed. |
| 关键词 | Equatorial Pacific Annual Rossby Wave Equatorward Shift Argo Profiles Moaa-gpv Gridded Data |
| DOI | 10.1007/s00343-015-4405-2 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000370345300021 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/112470 |
| 专题 | 海洋环流与波动重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Ma Xiao,Sun Che. Equatorward shift of annual Rossby waves in the Equatorial Pacific Ocean[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2016,34(1):212-218. |
| APA | Ma Xiao,&Sun Che.(2016).Equatorward shift of annual Rossby waves in the Equatorial Pacific Ocean.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,34(1),212-218. |
| MLA | Ma Xiao,et al."Equatorward shift of annual Rossby waves in the Equatorial Pacific Ocean".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 34.1(2016):212-218. |
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