| GEOSAT卫星遥感资料研究南海海面动力高度场和地转流场 |
| |
| 引用本文： | 毛庆文,施平,齐义泉.GEOSAT卫星遥感资料研究南海海面动力高度场和地转流场[J].海洋学报,1999,21(1):11-16. |
| |
| 作者姓名： | 毛庆文 施平 齐义泉 |
| |
| 作者单位： | 中国科学院南海海洋研究所, 广州 510301 |
| |
| 基金项目： | 国家自然科学基金!49336070，中国科学院重点项目!KZ952－JI－404，国家97－926专项 |
| |
| 摘 要： | 利用GEOSAT卫星在1987年和1988年执行ERM任务的雷达高度计资料来分析获取南海海面动力高度偏差的季节分布.根据卫星轨道误差和海域的特点,提出了适用于内海及边缘海域的二维共线轨道校正法,由此方法而得出的南海海面动力高度偏差的季节分布表明,南海表层流场在夏季总的环流形势是反气旋式环流,而冬季是气旋式环流.分析的结果同海上常规调查资料的分析结果相比较表明,在海流季节变化信号较强的海区(如南海中部和北部海区),利用高度计资料能很好地反映该海区的海流季节变化特征.
|
| 关 键 词： | 卫星高度计 动力高度偏差 共线轨道校正 |
| 收稿时间： | 1997/12/20 0:00:00 |
| 修稿时间： | 1998/3/15 0:00:00 |
Sea surface dynamic topography and geostrophic current over the South China Sea from Geosat altimeter observation |
| |
| Mao Qingwen,Shi Ping and Qi Yiquan.Sea surface dynamic topography and geostrophic current over the South China Sea from Geosat altimeter observation[J].Acta Oceanologica Sinica (in Chinese),1999,21(1):11-16. |
| |
| Authors: | Mao Qingwen Shi Ping and Qi Yiquan |
| |
| Institution: | South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzho 510301 |
| |
| Abstract: | Based on the Geosat altimetric data in 1987 and 1988, the distributions of seasonal anomaly of dynamical topography over the South China Sea are analysed. A two dimensional collinear adjustment method is developed to reduce the calculation errors for the orbit height. The results give a general agreement to those from the in situ observations,especially over the northern area where the seasonal variations of the geostrophic circulation over the South China Sea are anticyclonic in summer, and are cyclonic in winter. It is shown that the altimeter data are efficient in deriving the seasonal variation features of geostrophic current over the South China Sea. |
| |
| Keywords: | Satellite altimeter dynamic topography collinear orbit adjustment South China Sea |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《海洋学报》浏览原始摘要信息 |
| 点击此处可从《海洋学报》下载免费的PDF全文 |
