Normal Gravity Formulae
WEI Ziqing(Xi'an Research Institute of Surveying and Mapping,Xi'an 710054,China)
The general formulae of normal gravity are dealt with at first, a Taylor series expansion is then developed in detail, and numerical constants are given for the GRS80 and WGS84 ellipsoids. It is shown that the equations yield results with the accuracy of better than 0.1 μGal for geodetic heights up to 20 km, and of better than 0.3 μGal and 1 μGal for up to 50 km and 70 km respectively.
【CateGory Index】： P223