Using the ocean tide model of TPXO6, the effect of ocean tide on gravitydetermination is investigated and compared with the error of recovered gravity by GRACE.
利用TPXO6海潮模型计算了海潮对卫星重力恢复的影响，与GRACE观测误差实施了对比。
2
Relative accuracy of regional gravimetric geoid determination is estimated by an frequency domain analysis, which is determined by regional terrestrial gravity measurements and geopotential model.
以频域解析方法，研究由地面重力数据、全球位模型确定区域重力大地水准面的相对精度估计。
3
The applications of vector gravity on the determination of the earth's gravity field are described, including the downward continuation of vector gravity and determination of the local geoid.