| Wang Yan,Xu Tengfei,Li Shujiang,Susanto R. Dwi,Agustiadi Teguh,Trenggono Mukti,Tan Wei,Wei Zexun. 2019. Seasonal variation of water transport through the Karimata Strait. Acta Oceanologica Sinica, 38(4):47－57 |
| Seasonal variation of water transport through the Karimata Strait |
| 卡里马塔海峡水体交换的季节变化 |
| Received:February 12, 2018 |
| DOI：10.1007/s13131-018-1224-2 |
| Key words:Karimata Strait water transport seasonal variation South China Sea throughflow |
| 中文关键词: 卡里马塔海峡 水体交换 季节变化 南海贯穿流 |
| 基金项目:The National Key Research and Development Program of China under contract No. 2016YFC1402604; the Scientific and Technological Innovation Project financially supported by Qingdao National Laboratory for Marine Science and Technology under contract No. 2015ASKJ01; the SOA Program on Global Change and Air-Sea Interactions under contract Nos GASI-IPOVAI-03, GASI-IPOVAI-02 and GASI-IPOVAI-01-02; the National Natural Science Foundation of China under contract Nos 40476025, 41876027 and 41506036; the China-Indonesia Maritime Cooperation Fund under contract No. U1406405; the National Science Foundation of the United States under contract No. OCE-07-25935; the Office of Naval Research of United States under contract No. N00014-08-01-0618. |
| Author Name | Affiliation | E-mail | | Wang Yan | Key Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China | | | Xu Tengfei | Key Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China | | | Li Shujiang | Key Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China | | | Susanto R. Dwi | Department of Atmospheric and Oceanic Science, University of Maryland, College Park, Maryland 20742, USA
Faculty of Earth Sciences and Technology, Bandung Institute of Technology, Bandung 40116, Indonesia | | | Agustiadi Teguh | Agency for Marine & Fisheries Research, Ministry of Marine Affairs and Fisheries, Jakarta 10110, Indonesia | | | Trenggono Mukti | Faculty of Fisheries and Marine Science, Jenderal Soedirman University, Purwokerto 53123, Indonesia | | | Tan Wei | Key Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China | | | Wei Zexun | Key Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China | weizx@fio.org.cn |
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| Abstract: |
| Four trawl-resistant bottom mounts, with acoustic Doppler current profilers (ADCPs) embedded, were deployed in the Karimata Strait from November 2008 to June 2015 as part of the South China Sea-Indonesian Seas Transport/Exchange and Impact on Seasonal Fish Migration (SITE) Program, to estimate the volume and property transport between the South China Sea and Indonesian seas via the strait. The observed current data reveal that the volume transport through the Karimata Strait exhibits significant seasonal variation. The winter-averaged (from December to February) transport is -1.99 Sv (1 Sv=1×106 m3/s), while in the boreal summer (from June to August), the average transport is 0.69 Sv. Moreover, the average transport from January 2009 to December 2014 is -0.74 Sv (the positive/negative value indicates northward/southward transport). May and September are the transition period. In May, the currents in the Karimata Strait turn northward, consistent with the local monsoon. In September, the southeasterly trade wind is still present over the strait, driving surface water northward, whereas the bottom flow reverses direction, possibly because of the pressure gradient across the strait from north to south. |
| 中文摘要: |
| SITE项目2008年11月至2015年6月在卡里马塔海峡观测获取的ADCP流速数据的分析结果表明：卡里马塔海峡水体交换存在显著季节变化。北半球冬季平均流量为-1.99 Sv；北半球夏季平均流量为0.69 Sv。2009年1月至2014年12月平均流量为-0.74 Sv（流量向北为正，向南为负）。5月和9月为海流转向期。5月，卡里马塔海峡海流随季风转向。9月，海表面仍为东南信风，底层海水已经转向，可能是海峡由北向南的压力梯度所致。 |
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