关于高程系统的思考  

Consideration on the Height System

作　　者：许厚泽[1] 

机构地区：[1]中国科学院测量与地球物理研究所,湖北武汉430077

出　　处：《地理空间信息》2016年第1期1-3,共3页Geospatial Information

基　　金：国家自然科学基金资助项目(41131067)

摘　　要：讨论了3种高程系统(正高、正常高及区域正常高)及其区别,它们分别依赖于不同的基准面,即大地水准面、似大地水准面和区域似大地水准面;研究了如何把中国的区域高程系统转换为全球统一高程系统的2种途径。可以利用水准或重力方法、GPS水准和GPS重力方法建立高程系统。In this paper, we discussed the definitions of three kind height systems and the differences of them, including the orthometric height, normal height and regional normal height, which depends on the different definitions of height datum, such as geoid, quasi-geoid and regional quasigeoid. To establish the height system, people can use the leveling method on gravimetric method, and GPS-leveling or GPS-gravimetric methods too. Finally, two ways to transform the Chinese regional system to the unitied world height system were investigated.

关 键 词：高程系统 正常高 大地水准面 GPS水准 

分 类 号：P224[天文地球—大地测量学与测量工程]