A sea surface salinity dipole mode in the tropical Indian Ocean
文献类型：期刊论文
| 作者 | Zhang, Yuhong; Du, Yan; Qu, Tangdong |
| 刊名 | CLIMATE DYNAMICS
 |
| 出版日期 | 2016 |
| 卷号 | 47期号:2016-07-08页码:2573-2585 |
| 关键词 | S-IOD SST-precipitation-SSS feedback Tropical Indian Ocean Argo |
| 通讯作者 | Du, Y (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, 164 West Xingang Rd, Guangzhou 510301, Guangdong, Peoples R China. |
| 中文摘要 | Based on the 10 years sea surface salinity (SSS) data from Argo, we identified a salinity dipole mode in the tropical Indian Ocean, termed S-IOD: a pattern of interannual SSS variability with anomalously low-salinity in the central equatorial and high-salinity in the southeastern tropical Indian Ocean. The S-IOD matures in November-December, lagging the Indian Ocean dipole (IOD) mode derived from sea surface temperature (SST) by 2 months. For the period of observations, the S-IOD persists longer than the IOD, until the following September-October. Oscillations of the two S-IOD poles are governed by different processes. Ocean advection associated with equatorial current variability dominates the SSS anomalies of the northern pole, while surface freshwater flux variability plays a key role in the SSS anomalies of the southern pole, where anomalous precipitation is sustained by preformed sea surface temperature anomalies. The S-IOD concurs with the strong IOD, reflecting an ocean-atmosphere coupling through the SST-precipitation-SSS feedback. |
| 学科主题 | Meteorology & Atmospheric Sciences |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/15246]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 推荐引用方式 GB/T 7714 | Zhang, Yuhong,Du, Yan,Qu, Tangdong. A sea surface salinity dipole mode in the tropical Indian Ocean[J]. CLIMATE DYNAMICS,2016,47(2016-07-08):2573-2585. |
| APA | Zhang, Yuhong,Du, Yan,&Qu, Tangdong.(2016).A sea surface salinity dipole mode in the tropical Indian Ocean.CLIMATE DYNAMICS,47(2016-07-08),2573-2585. |
| MLA | Zhang, Yuhong,et al."A sea surface salinity dipole mode in the tropical Indian Ocean".CLIMATE DYNAMICS 47.2016-07-08(2016):2573-2585. |
入库方式： OAI收割
来源：南海海洋研究所
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