摘要
根据海洋卫星测高技术推算出具有较高分辨率的海洋大地水准面高,基于重力场理论可计算得到卫星测高自由空气重力异常,再进行相关的校正可得到卫星测高布格重力异常。提出了一种新的方法计算卫星测高布格重力异常:基于一元线性回归分析方法,对已知海域船测布格重力异常和卫星测高自由空气重力异常间的相关性进行研究,计算出回归方程,进而求取相邻未知海域的卫星测高布格重力异常。研究结果表明,在海底地形起伏变化不大时,利用一元线性回归分析方法求取的卫星测高布格重力异常,能满足中等或者小比例尺的海洋地质与资源调查。
Based on the high-resolution marine geoid height reckoned by the seasat altimetric method and the theory of the gravitational field,the satellite altimetric free-air gravity anomaly can be calculated,and then the satellite altimetric Bouguer gravity anomaly can be calculated after the relevant correction is done.This paper developes a new method to calculate the satellite altimetric Bouguer gravity anomaly.Based on the unary linear regression analysis method,the correlation between the shipborne Bouguer gravity anomalies and the satellite altimetric free-air gravity anomalies in the known sea area is studied,the regression equation can be obtained,and then the satellite altimetric Bouguer gravity anomaly can be calculated in the adjacent unknown sea area.The results show that the satellite altimetric Bouguer gravity anomaly calculated by the unary linear regression analysis method can satisfy the medium-scale or small-scale marine geology and resource surveys when the topographic relief of the seabed changes a little.
出处
《长江大学学报（自科版）（上旬）》
CAS
2014年第1期21-23,3,共3页
JOURNAL OF YANGTZE UNIVERSITY (NATURAL SCIENCE EDITION) SCI ＆ ENG
基金
国土资源部油气项目(GT-YU-QQ-2008-5-14)
西安石油大学大学生科研训练计划资助项目
关键词
卫星测高重力异常
船测重力异常
回归分析
satellite altimetric gravity anomaly
shipborne gravity anomaly
regression analysis
