基于地球物理信息构建全球重力异常模型方法的探讨

Disscussion on Establishing the Global Gravity Anomaly Model Based on the Geophysical Information

平均重力异常是地球重力场的基本数据，在垂线偏差、高程异常、扰动重力等的计算中都要用到平均重力异常。本文在全球高程、地壳密度、海深等地球物理信息的基础上，依据均衡理论和逆威宁-曼尼兹公式两种推估重力异常的方法，在理论上对构建全球重力异常模型进行了探讨。

The mean gravity anomaly, one of the basic data of the earth gravity fields, has been widely applied. For example, it can be used in calculating vertical deflection, height anomaly, and disturbing gravity etc. This paper mainly uses the isostatie theory and the inverse Vening - Meinesz formula to build the global gravity anomaly model based on the geophysical information.