Considering the problem that the gravity data is very few in some mountain areas and gravity data gets very difficultily. In view of the situation, we can take the method of splitting region to precise determination of local area geoid. Part of the region can realize the geoid accurately without gravity data, it's not only can meet the requirements, but also get more economic efficiency. Another part of the region can be refined by the method of combining gravity and level data. The article use the data of two different areas to implement in the city of Kunming and Find the feasibility of the way.%考虑到重力数据在一些山区分辨率比较低和重力数据获取比较困难。针对这种情况，采用分区域方法可以更好地实现该地域的大地水准面精化。部分区域（较平坦）可以在不需要重力数据的情况下进行大地水准面精化，从而达到既能满足要求又能更加经济高效的目的；另外一部分区域可以通过重力组合法进行精化。本文利用昆明市的两个小区域进行实施验证，发现改方法具有一定的可行性。
展开▼
