| HONG Huasheng,ZHENG Quanan,HU Jianyu,CHEN Zhaozhang,LI Chunyan,JIANG Yuwu,WAN Zhenwen. 2009. Three-dimensional structure of a low salinity tongue in the southern Taiwan Strait observed in the summer of 2005. Acta Oceanologica Sinica, (4):1－7 |
| Three-dimensional structure of a low salinity tongue in the southern Taiwan Strait observed in the summer of 2005 |
| Three-dimensional structure of a low salinity tongue in the southern Taiwan Strait observed in the summer of 2005 |
| Received:April 09, 2008 Revised:February 08, 2009 |
| DOI： |
| Key words:Taiwan Strait low salinity tongue river diluted water cruise measurement |
| 中文关键词: Taiwan Strait low salinity tongue river diluted water cruise measurement |
| 基金项目:This study was supported by the National Natural Science Foundation of China under contract Nos 40331004, 40576015, 40810069004 and 40821063, the MEL Open Project MEL0506, and partially supported by the ONR through grants N00014-05-1-0328 and N00014-05-1-0606, and the NSF through Grant 071003-9222 (for Zheng, any opinions, findings, and conclusions or recommendations expressed in this paper are those of the authors and do not necessarily reflect the views of the NSF). |
| Author Name | Affiliation | E-mail | | HONG Huasheng | State Key Laboratory of Marine Environmental Science, College of Oceanography and Environmental Science, Xiamen University, Xiamen 361005, China | | | ZHENG Quanan | Department of Atmospheric and Oceanic Science, University of Maryland, College Park, MD 20742, USA | | | HU Jianyu | State Key Laboratory of Marine Environmental Science, College of Oceanography and Environmental Science, Xiamen University, Xiamen 361005, China | hujy@xmu.edu.cn | | CHEN Zhaozhang | State Key Laboratory of Marine Environmental Science, College of Oceanography and Environmental Science, Xiamen University, Xiamen 361005, China | | | LI Chunyan | Department of Oceanography and Coastal Sciences, Coastal Sciences, School of the Coast and Environment, Louisiana State University, Baton Rouge, LA 70803, USA | | | JIANG Yuwu | State Key Laboratory of Marine Environmental Science, College of Oceanography and Environmental Science, Xiamen University, Xiamen 361005, China | | | WAN Zhenwen | State Key Laboratory of Marine Environmental Science, College of Oceanography and Environmental Science, Xiamen University, Xiamen 361005, China | |
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| Abstract: |
| Cruise observations with CTD (conductivity-temperature-depth) profiler were carried out in the southern Taiwan Strait in the summer of 2005. Using the cruise data, two-dimensional maps of salinity and temperature distributions at depths of 5, 10, 15, 20, and 30 m were generated. The maps show a low salinity tongue sandwiched by low temperature and high salinity waters on the shallow water side and high temperature and high salinity waters on the deep water side. The further analysis indicates that the low salinity water has a nature of river-diluted water. A possible source of the diluted water is the Zhujiang (Pearl) Estuary. Meanwhile, the summer monsoon is judged as a possible driving force for this northeastward jet-like current. The coastal upwelling and the South China Sea Warm Current confine the low salinity water to flow along the central line of the strait. Previous investigations and a numerical model are used to verify that the upstream of the low salinity current is the Zhujiang Estuary. Thus, the low salinity tongue is produced by four major elements:Zhujinag Estuary diluted water, monsoon wind driving, coastal upwelling and South China Sea Warm Current modifications. |
| 中文摘要: |
| Cruise observations with CTD (conductivity-temperature-depth) profiler were carried out in the southern Taiwan Strait in the summer of 2005. Using the cruise data, two-dimensional maps of salinity and temperature distributions at depths of 5, 10, 15, 20, and 30 m were generated. The maps show a low salinity tongue sandwiched by low temperature and high salinity waters on the shallow water side and high temperature and high salinity waters on the deep water side. The further analysis indicates that the low salinity water has a nature of river-diluted water. A possible source of the diluted water is the Zhujiang (Pearl) Estuary. Meanwhile, the summer monsoon is judged as a possible driving force for this northeastward jet-like current. The coastal upwelling and the South China Sea Warm Current confine the low salinity water to flow along the central line of the strait. Previous investigations and a numerical model are used to verify that the upstream of the low salinity current is the Zhujiang Estuary. Thus, the low salinity tongue is produced by four major elements:Zhujinag Estuary diluted water, monsoon wind driving, coastal upwelling and South China Sea Warm Current modifications. |
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