| Direct measurements of surface and mid-depth circulationin the Shikoku Basin by Argo profiling floats |
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| 作者姓名： | ZHOU Hui GUO Peifang XU Jianping SHI Maochong |
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| 作者单位： | ZHOU Hui1，2，GUO Peifang1，XU Jianping2，SHI Maochong11. Institute of Marine Environment，Ocean University of China，Qingdao 266100，China2. Key Laboratory of Ocean Dynamic Process and Satellite Oceanography，Second Institute of Oceanography，State Oceanic Administration，Hangzhou 310012，China |
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| 基金项目： | This study was supported by the projec "Research on the Argo float observation in Pacific-indian Ocean warm pool" under contract No.2002CB714001. |
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| 摘 要： | The circulation in the Shikoku Basin plays a very important role in the pathway of the Kuroshio and the water exchange in the subtropical gyre in the North Pacific Ocean. The Argo profiling floats deployed in the Shikoku Basin are used to study the circulations and water masses in the basin. The trajectories and parking depth velocity fields derived from all Argo floats show an anticyclonic circulation at 2 000 m in the Shikoku Basin. There are inhanced eddy activities in the Shikoku Basin, which have large influence on the Shikoku Basin circulation patterns. The characteristics of temperature-salinity curves indicate that there are North Pacific Ocean tropical water (NPTW), North Pacific Ocean subtropical mode water (NPSTMW) and North Pacific Ocean intermediate water (NPIW) in the Shikoku Basin. The NPTW is only exists south of 32°N. In the middle part of the basin, which is 28°~31°N,133°~135°E, there is a confluence region. Water masses coming from the Kuroshio mix with the water in the Shikoku Basin.
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| 关 键 词： | 四国海盆 海面 大洋环流 中深环流 直接测量 Argo浮标 |
| 收稿时间： | 2006-01-14 |
| 修稿时间： | 2006-09-10 |
Direct measurements of surface and mid-depth circulationin the Shikoku Basin by Argo profiling floats |
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| ZHOU Hui,GUO Peifang,XU Jianping,SHI Maochong.Direct measurements of surface and mid-depth circulationin the Shikoku Basin by Argo profiling floats[J].Acta Oceanologica Sinica,2007,26(2):1-11. |
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| Authors: | ZHOU Hui GUO Peifang XU Jianping and SHI Maochong |
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| Institution: | 1.Institute of Marine Environment, Ocean University of China, Qingdao 266100, China;Key Laboratory of Ocean Dynamic Process and Satellite Oceanography, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China2.Institute of Marine Environment, Ocean University of China, Qingdao 266100, China3.Key Laboratory of Ocean Dynamic Process and Satellite Oceanography, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China |
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| Abstract: | The circulation in the Shikoku Basin plays a very important role in the pathway of the Kuroshio and the water exchange in the subtropical gyre in the North Pacific Ocean. The Argo profiling floats deployed in the Shikoku Basin are used to study the circulations and water masses in the basin. The trajectories and parking depth velocity fields derived from all Argo floats show an anticyclonic circulation at 2 000 m in the Shikoku Basin. There are inhanced eddy activities in the Shikoku Basin, which have large influence on the Shikoku Basin circulation patterns. The characteristics of temperature - salinity curves indicate that there are North Pacific Ocean tropical water (NPTW), North Pacific Ocean subtropical mode water (NPSTMW) and North Pacific Ocean intermediate water (NPIW) in the Shikoku Basin. The NPTW is only exists south of 32°N. In the middle part of the basin, which is 28°～31°N,133°～135°E, there is a confluence region. Water masses coming from the Kuroshio mix with the water in the Shikoku Basin. |
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| Keywords: | Argo Kuroshio anticyclonic eddy mid-depth current water mass Shikoku Basin |
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