Opposite Variability of Indonesian Throughflow and South China Sea Throughflow in the Sulawesi Sea
Wei, Jun; Li, M. T.; Malanotte-Rizzoli, P.; Gordon, A. L.; Wang, D. X.; Wei, J (reprint author), Peking Univ, Lab Climate & Ocean Atmosphere Studies, Beijing, Peoples R China.; Wei, J (reprint author), Peking Univ, Dept Atmospher & Ocean Sci, Beijing, Peoples R China.
2016
发表期刊JOURNAL OF PHYSICAL OCEANOGRAPHY
卷号46期号:10页码:3165-3180
摘要Based on a high-resolution (0.1 degrees x 0.1 degrees)regional ocean model covering the entire northern Pacific, this study investigated the seasonal and interannual variability of the Indonesian Throughflow (ITF) and the South China Sea Throughflow (SCSTF) as well as their interactions in the Sulawesi Sea. The model efficiency in simulating the general circulations of the western Pacific boundary currents and the ITF/SCSTF through the major Indonesian seas/straits was first validated against the International Nusantara Stratification and Transport (INSTANT) data, the OFES reanalysis, and results from previous studies. The model simulations of 2004-12 were then analyzed, corresponding to the period of the INSTANT program. The results showed that, derived from the North Equatorial Current (NEC)-Mindanao Current (MC)-Kuroshio variability, the Luzon-Mindoro-Sibutu flow and the Mindanao-Sulawesi flow demonstrate opposite variability before flowing into the Sulawesi Sea. Although the total transport of the Mindanao-Sulawesi flow is much larger than that of the Luzon-Mindoro-Sibutu flow, their variability amplitudes are comparable but out of phase and therefore counteract each other in the Sulawesi Sea. Budget analysis of the two major inflows revealed that the Luzon-Mindoro-Sibutu flow is enhanced southward during winter months and El Nino years, when more Kuroshio water intrudes into the SCS. This flow brings more buoyant SCS water into the western Sulawesi Sea through the Sibutu Strait, building up a west-to-east pressure head anomaly against the Mindanao-Sulawesi inflow and therefore resulting in a reduced outflow into the Makassar Strait. The situation is reversed in the summer months and La Nina years, and this process is shown to be more crucially important to modulate the Makassar ITF's interannual variability than the Luzon-Karimata flow that is primarily driven by seasonal monsoons.
部门归属[Wei, Jun; Li, M. T.] Peking Univ, Lab Climate & Ocean Atmosphere Studies, Beijing, Peoples R China; [Wei, Jun; Li, M. T.] Peking Univ, Dept Atmospher & Ocean Sci, Beijing, Peoples R China; [Malanotte-Rizzoli, P.] MIT, Dept Earth Planetary & Atmospher Sci, Boston, MA USA; [Gordon, A. L.] Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY USA; [Wang, D. X.] Chinese Acad Sci, South China Sea Inst Oceanol, Guangzhou, Guangdong, Peoples R China ; LTO
学科领域Oceanography
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/15244
专题热带海洋环境国家重点实验室(LTO)
通讯作者Wei, J (reprint author), Peking Univ, Lab Climate & Ocean Atmosphere Studies, Beijing, Peoples R China.; Wei, J (reprint author), Peking Univ, Dept Atmospher & Ocean Sci, Beijing, Peoples R China.
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GB/T 7714
Wei, Jun,Li, M. T.,Malanotte-Rizzoli, P.,et al. Opposite Variability of Indonesian Throughflow and South China Sea Throughflow in the Sulawesi Sea[J]. JOURNAL OF PHYSICAL OCEANOGRAPHY,2016,46(10):3165-3180.
APA Wei, Jun.,Li, M. T..,Malanotte-Rizzoli, P..,Gordon, A. L..,Wang, D. X..,...&Wei, J .(2016).Opposite Variability of Indonesian Throughflow and South China Sea Throughflow in the Sulawesi Sea.JOURNAL OF PHYSICAL OCEANOGRAPHY,46(10),3165-3180.
MLA Wei, Jun,et al."Opposite Variability of Indonesian Throughflow and South China Sea Throughflow in the Sulawesi Sea".JOURNAL OF PHYSICAL OCEANOGRAPHY 46.10(2016):3165-3180.
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