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| 南海Argo浮标观测结果初步分析 | |
| 引用本文： | 苏京志,王东晓,张人禾,谢强.南海Argo浮标观测结果初步分析[J].海洋与湖沼,2008,39(2):97-104. |
| 作者姓名： | 苏京志 王东晓 张人禾 谢强 |
| 作者单位： | 1. 中国科学院南海海洋研究所热带海洋环境动力学重点实验室,广州,510301;中国气象科学研究院,北京,100081 2. 中国科学院南海海洋研究所热带海洋环境动力学重点实验室,广州,510301 3. 中国气象科学研究院,北京,100081 |
| 基金项目： | 国家自然科学基金 , 国家高技术研究发展计划(863计划) |
| 摘 要： | 对投放在南海内部的4个Argo浮标轨迹特征,温、盐结构及漂移速度进行诊断分析发现,Argo浮标剖面温、盐观测结果和气候态资料一致,同时上层海洋温、盐剖面资料表现出周期约2月的扰动信号,并且温跃层起伏与同期海表高度异常相关显著。和高度计资料计算而得的海表地转流相比,由Argo浮标漂移轨迹计算的表观流量值较小。在季节时间尺度上,Argo浮标表观流和Argo浮标所停留的中层参考面季节性海流相一致。 |
| 关 键 词： | Argo浮标 南海 海流 温、盐层结构 |
| 修稿时间： | 2006年8月25日 |
PRELIMINARY RESULTS OF THE ARGO FLOATS IN THE SOUTH CHINA SEA |
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| SU Jing-Zhi,WANG Dong-Xiao,ZHANG Ren-He,XIE Qiang.PRELIMINARY RESULTS OF THE ARGO FLOATS IN THE SOUTH CHINA SEA[J].Oceanologia Et Limnologia Sinica,2008,39(2):97-104. | |
| Authors: | SU Jing-Zhi WANG Dong-Xiao ZHANG Ren-He XIE Qiang |
| Abstract: | A dataset of 4 Argo floats deployed in the South China Sea (SCS) was analyzed for understanding the circulation and temperature-salinity (T/S) profiles in the upper ocean in the SCS, with emphasis on trajectory, T/S structure, and drifting velocity. The vertical profiles of T/S measured by the Argo floats are fairly close to the corresponding climatological values, and show some signals of perturbation in a periods of about 2 months in the upper layers. The changes in the depth of thermocline are closely correlated with simultaneous sea surface height anomalies. The drifting velocity inferred from the Argo trajectories is smaller than the geostrophic velocity derived from altimetry data. The perturbations of the vertical structure of T/S are dominated by the first-order baroclinic mode in a main period of about 2 months. On seasonal timescale, the Argo drifting velocities are more consistent with the velocities on the reference levels where the Argo floats traveled most of the time. |
| Keywords: | Argo float South China Sea Ocean current Temperature salinity structure |
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