globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-016-2984-z
Scopus记录号: 2-s2.0-84961583750
论文题名:
A sea surface salinity dipole mode in the tropical Indian Ocean
作者: Zhang Y.; Du Y.; Qu T.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2016
卷: 47, 期:2017-07-08
起始页码: 2573
结束页码: 2585
语种: 英语
英文关键词: Argo ; S-IOD ; SST-precipitation-SSS feedback ; Tropical Indian Ocean
英文摘要: 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. © 2016, Springer-Verlag Berlin Heidelberg.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53525
Appears in Collections:过去全球变化的重建

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作者单位: State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou, Guangdong, China; International Pacific Research Center, SOEST, University of Hawaii at Manoa, Honolulu, HI, United States; Joint Institute for Regional Earth System Science and Engineering, University of California, Los Angeles, CA, United States

Recommended Citation:
Zhang Y.,Du Y.,Qu T.. A sea surface salinity dipole mode in the tropical Indian Ocean[J]. Climate Dynamics,2016-01-01,47(2017-07-08)
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