| 南半球亚极地流涡的平均特征及其变化 |
| |
| 引用本文： | 段永亮,刘洪伟,于卫东,侯一筠.南半球亚极地流涡的平均特征及其变化[J].海洋学报(英文版),2016,35(7):8-13. |
| |
| 作者姓名： | 段永亮 刘洪伟 于卫东 侯一筠 |
| |
| 作者单位： | 国家海洋局第一海洋研究所 海洋与气候研究中心, 青岛, 266061;青岛海洋科学与技术国家实验室 区域海洋动力学与数值模拟功能实验室, 青岛, 266061,中国科学院海洋研究所 海洋环流与波动重点实验室, 青岛, 266071,国家海洋局第一海洋研究所 海洋与气候研究中心, 青岛, 266061;青岛海洋科学与技术国家实验室 区域海洋动力学与数值模拟功能实验室, 青岛, 266061,中国科学院海洋研究所 海洋环流与波动重点实验室, 青岛, 266071 |
| |
| 基金项目： | The Shandong Provincial Natural Science Foundation, China under contract No. ZR2014DP011; the National Natural Science Foundation of China under contract No. 41406012; the Basic Scientific Research Fund for National Public Institutes of China under contract No. 2015G05; the Chinese Polar Science Strategy Research Foundation under contract NO. 20150305; the Open Fund of the Key Laboratory of Ocean Circulation and Waves, Chinese Academy of Sciences under contract No. KLOCAW1405. |
| |
| 摘 要： | Based on the Simple Ocean Data Assimilation(SODA) products,we study the mean properties and variations of the Southern Hemisphere subpolar gyres(SHSGs) in this paper.The results show that the gyre strengths in the SODA estimates are(55.9±9.8)×10~6m~3/s for the Weddell Gyre(WG),(37.0±6.4) ×10~6m~3/s for the Ross Gyre(RG),and(27.5±8.2)×10~6m~3/s for the Australian-Antarctic Gyre(AG),respectively.There exists distinct connectivity between the adjacent gyres and then forms an oceanic super gyre structure in the southern subpolar oceans.And the interior exchanges are about(8.0±3.2)×10~6m~3/s at around 70°E and(4.3±3.1)×10~6m~3/s at around 140°E.The most pronounced variation for all three SHSGs occurs on the seasonal time scale,with generally stronger(weaker)SHSGs during austral winter(summer).And the seasonal changes of the gyre structures show that the eastern boundary of the WG and AG extends considerably further east during winter and the interior exchange in the super gyre structure increases accordingly.The WG and RG also show significant semi-annual changes.The correlation analyses confirm that the variations of the gyre strengths are strongly correlated with the changes in the local wind forcing on the semi-annual and seasonal time scales.
|
| 关 键 词： | 亚极地流涡 南大洋 风应力 风应力旋度 |
| 收稿时间： | 6/2/2015 12:00:00 AM |
| 修稿时间： | 2015/8/14 0:00:00 |
The mean properties and variations of the Southern Hemisphere subpolar gyres estimated by Simple Ocean Data Assimilation (SODA) products |
| |
| DUAN Yongliang,LIU Hongwei,YU Weidong and HOU Yijun.The mean properties and variations of the Southern Hemisphere subpolar gyres estimated by Simple Ocean Data Assimilation (SODA) products[J].Acta Oceanologica Sinica,2016,35(7):8-13. |
| |
| Authors: | DUAN Yongliang LIU Hongwei YU Weidong and HOU Yijun |
| |
| Institution: | 1.Center for Ocean and Climate Research, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China2.Key Laboratory of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China |
| |
| Abstract: | Based on the Simple Ocean Data Assimilation (SODA) products, we study the mean properties and variations of the Southern Hemisphere subpolar gyres (SHSGs) in this paper. The results show that the gyre strengths in the SODA estimates are (55.9±9.8)×106 m3/s for the Weddell Gyre (WG), (37.0±6.4)×106 m3/s for the Ross Gyre (RG), and (27.5±8.2)×106 m3/s for the Australian-Antarctic Gyre (AG), respectively. There exists distinct connectivity between the adjacent gyres and then forms an oceanic super gyre structure in the southern subpolar oceans. And the interior exchanges are about (8.0±3.2)×106 m3/s at around 70°E and (4.3±3.1)×106 m3/s at around 140°E. The most pronounced variation for all three SHSGs occurs on the seasonal time scale, with generally stronger (weaker) SHSGs during austral winter (summer). And the seasonal changes of the gyre structures show that the eastern boundary of the WG and AG extends considerably further east during winter and the interior exchange in the super gyre structure increases accordingly. The WG and RG also show significant semi-annual changes. The correlation analyses confirm that the variations of the gyre strengths are strongly correlated with the changes in the local wind forcing on the semi-annual and seasonal time scales. |
| |
| Keywords: | the subpolar gyres Southern Ocean wind stress wind stress curl |
| 本文献已被 CNKI SpringerLink 等数据库收录！ |
| 点击此处可从《海洋学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《海洋学报(英文版)》下载免费的PDF全文 |
|
