| 摘要: |
| 为了掌握南海北部海区的海流及潮流情况,利用2000年8-11月在南海北部海区75天的ADCP定点流速观测资料,对海流的观测结果、海流前进矢量图、海流的日平均流速、海流随时间和深度的变化情况、正压流速的矢量旋转谱和斜压流速的二维矢量频率波数谱以及正压潮流进行了分析研究。结果表明,此处海流主要为逆时针方向旋转,并且K1和M2为主要分量。这说明南海北部海区的海流及潮流变化比较复杂,需要大范围的长期观测才能更好地掌握其特征与变化规律。 |
| 关键词: 南海北部 海流观测 谱分析 |
| DOI：10.11693/hyhz200806004 |
| 分类号: |
| 基金项目:国际科技合作重点项目,2004DFB02700号;国家重点基础研究发展计划(973)资助项目,2005CB422303号;国家自然科学基金重点项目,40552002号和40776005号 |
附件 |
|
| OBSERVATION ON THE CURRENT IN THE NORTHERN SOUTH CHINA SEA AND SPECTRUM ANALYSIS |
|
YANG Qing-Xuan, LIANG Xin-Feng, TIAN Ji-Wei, KANG Jian-Jun
|
|
Physical Oceanography Laboratory, Ocean University of China, Qingdao, 266100
|
| Abstract: |
| Characteristics of the currents in the northern South China Sea on August to November 2000 and their spectra were studied using Acoustic Doppler Current Pro?ler (ADCP) data, including current velocity vector and the day-averaged velocity. Harmonic analysis was also applied to the observation, which provided us more information of barotropic tide. The results suggest that, the velocity vector rotates anticlockwise mainly, and the principal constituents of barotropic tides are K1 and M2, respectively. |
| Key words: Northern South China Sea, Current observation, Spectrum analysis |
