orthometric height

基本解释

Ellipsoid height measured by GPS must be transformed into orthometric height so that it can be used to surveying and mapping engineering.
GPS测出的椭球高，必须将其改化为常用的正高才能用于测绘工程。
This paper introduced the conceptions concerning GPS height system, such as geodetic, orthometric and normal height system and deflection of the vertical.
介绍了与G P S高程系统有关的几个主要概念，即大地高系统、正高系统、正常高系统及垂线偏差；
The accuracy of Orthometric Height will be directly affected by ellipsoidal height precision during GPS height transformation, therefore, the detection of gross error is very important.
GPS高程转换中，大地高的精度将直接影响转换后正常高的精度，为此大地高的粗差探测是比较重要的一个环节。

正高
If the Geoid or quasi-Geoid model is given, GPS can be used directly to determine orthometric height or normal height, which can take the place of the traditional geometric leveling and make the separation mode of plane control network and elevation control network in traditional geodesy become a history.
在高精度、高分辨率(似)大地水准面模型的支持下,利用GPS技术可以直接测定正高或正常高,从而取代传统繁琐的水准测量方法,使得平面控制网和高程控制网分离的传统大地测量模式成为历史。
地球科学
正高