目前区域重力测量工作正在全国范围普遍开展。我国山区多，地形条件相当复杂，重力测量的地形影响不可忽略。区域重力测量的测点分布稀疏，而且通常是采用自由网，由于这些特点，其地形改正工作不能简单搬用大比例尺规则网的地形改正方法。当前各单位采用的 At present, the regional gravity measurement is being carried out all over the country. There are many mountainous areas in our country, and the terrain conditions are quite complicated. The topographic effects of gravity measurement can not be neglected. Due to the sparse distribution of measuring points in regional gravimetry and the fact that free networks are usually used, the topographic correction work of large-scale regular networks can not be easily applied to the terrain correction work due to these characteristics. Currently adopted by all units