| 海水密度对海面高变化的影响 |
| |
| 引用本文： | 周旭华,吴斌,钟敏.海水密度对海面高变化的影响[J].中国科学院研究生院学报,2002,19(4):410-414. |
| |
| 作者姓名： | 周旭华 吴斌 钟敏 |
| |
| 作者单位： | 中国科学院测量与地球物理研究所动力大地测量重点实验室,武汉,430077 |
| |
| 基金项目： | 国家自然科学基金(40 0 740 0 4,4990 40 0 2 )，中国科学院(KJCX2 SW T1,KZCX2 10 6)资助项目 |
| |
| 摘 要： | 基于TOPEX/Poseidon卫星测高资料,采用WOA98海水温度及盐度模型,计算了多层海水密度变化引起的海面高变化。结果表明,海水密度变化是引起季节性海面高变化的重要因素。另外,在考虑和不考虑海水密度变化的情况下,估算了海面异常引起上海GPS测站位移和地球重力场位系数J2 的变化。表明,在研究许多地球动力学问题时,扣除海水密度变化引起的海面高变化至关重要
|
| 关 键 词： | 海面高变化 海水密度 TOPEX/Poseidon卫星测高资料 |
| 修稿时间： | 2001年10月31 |
Seawater Density Effect on Sea Level Height Variation |
| |
| ZHOU Xu,Hua,WU Bin,ZHONG Min.Seawater Density Effect on Sea Level Height Variation[J].Journal of the Graduate School of the Chinese Academy of Sciences,2002,19(4):410-414. |
| |
| Authors: | ZHOU Xu Hua WU Bin ZHONG Min |
| |
| Abstract: | Using TOPEX/ Poseidon satellite altimeter data, and seawater temperature and salinity estimated from WOA98 model, we calculated sea level height variation caused by seawater density change in multi layers. The result shows that seawater density change is an important factor on sea level height variation at seasonal time scale. The displacement at Shanghai GPS station and J 2 variation in Earth's gravity field are quite different, while sea level height variation caused by seawater density change is removed or included from TOPEX/ Poseidon observation. The result shows that it is more important to separate sea level height variation caused by seawater density change in the study of Earth dynamic problem. |
| |
| Keywords: | sea level height variation seawater density TOPEX/Poseidon altimeter data |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
