逆Vening-Meinesz技术在陆地重力异常精细构制方法中的应用

The research of calculating the land gravity anomaly by using the inverse Vening Meinesz formula

逆Vening-Meinesz公式在海洋测高数据反演重力异常中得到了广泛应用,被认为是确定海洋地球重力场的有效途径之一。将该方法引入陆地,是本文的主要工作之一。由于陆地的非球面特性,需要顾及地形起伏的影响,因此,本文提出了基于均衡的逆Vening-Meinesz公式的移去恢复技术求解陆地重力异常的算法。最后通过对该算法编程试验,并对结果进行诊断分析和精度估计,结果表明该算法能够求得满足一定精度的重力异常值。

The inverse Vening-Meinesz formula is widely used to calculate the sea gravity anomaly using the surveyed sea height. This paper gives the inverse Vening-Meinesz formula on the assumption that the ellipse is approximating to sphere. Then it brings forward a remove-restore method to calculate the land gravity anomaly on the basis of this method. At last it makes a programme using this method. The diagnosis and analysis and precision estimation of the result are performed. It shows that the method is valid and effective.