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| Sea surface height and transport stream function of the South China Sea from a variable-grid global ocean circulation model | |
| 作者姓名： | 魏泽勋 方国洪 崔秉昊 方越 何宜军 |
| 作者单位： | 魏泽勋(Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Key Laboratory of Marine Science and Numerical Modelling, State Oceanic Administration, Qingdao 266061, China;Graduate School of the Chinese Academy of Sciences, Beijing 100039, C);方国洪(Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Key Laboratory of Marine Science and Numerical Modelling, State Oceanic Administration, Qingdao 266061, China);崔秉昊(Department of Civil and Environment Engineering, Sung Kyun Kwan University, Suwon 440-746, Korea);方越(Department of Oceanography, Texas A & M University, College Station, TX 77843-3146, USA);何宜军(Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China) |
| 基金项目： | the China Major State Basic Research Program (Grant No. G1999043808)，the Youth Fund of National 863 Project (Grant No. 2002AA639350)，the National Natural Science Foundation of China (Grant No. 49876010) and the Innovation Program of the Chinese Aca |
| 摘 要： | The study on the South China Sea (SCS) circulation has a history of more than 40 years. Nevertheless, the SCS circulation is not fully understood compared with the Bohai Sea, Yellow Sea and East China Sea (ECS). Many numerical studies on the SCS circulati… |
| 收稿时间： | 23 September 2009 |
Sea surface height and transport stream function of the South China Sea from a variable-grid global ocean circulation model |
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| Wei?Zexun? | |
| Authors: | |
| Institution: | 1. Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Key Laboratory of Marine Science and Numerical Modelling, State Oceanic Administration, Qingdao 266061, China;Graduate School of the Chinese Academy of Sciences, Beijing 100039, C 2. Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Key Laboratory of Marine Science and Numerical Modelling, State Oceanic Administration, Qingdao 266061, China 3. Department of Civil and Environment Engineering, Sung Kyun Kwan University, Suwon 440-746, Korea 4. Department of Oceanography, Texas A & M University, College Station, TX 77843-3146, USA 5. Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China |
| Abstract: | A fine-grid model (1/6) covering the South China Sea (SCS), East China Sea and Ja-pan/East Sea, which is embedded into a coarse-grid (3) global model, was established to study the SCS circulation. In the present paper, we report the model-produced monthly and annual mean transport stream functions and sea surface heights(SSH) and their anomalies of the SCS. Com-parison to the TOPEX/Poseidon data shows that the model-produced monthly sea surface height anomalies (SSHA) are in good agreement with altimeter measurements. Based on the results, the circulation of the SCS, especially the upper layer circulation, is discussed. In the surface layer, the western Philippine Sea water intrudes into the SCS through the Luzon Strait in autumn, winter and spring, but not in summer. However, as far as the whole water column is concerned, the water in-trudes into the SCS through the Luzon Strait all the year round. This indicates that in summer the water still intrudes into the SCS in the subsurface and intermediate layers. The area near the northern continental slope of the SCS is dominated by a cyclonic circulation all the year round. The SCS Southern Anticyclonic Gyre, SE Vietnam Off-Shore Current in summertime and SCS South-ern Cyclonic Gyre in wintertime are reproduced reasonably. The difference between the monthly averaged SSH and SSHA is significant, indicating the importance of the mean SSH in the SCS circulation. |
| Keywords: | South China Sea sea surface height sea surface height anomaly transport stream function numerical model |
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