摘要
大地测量学的发展 ,要求能够精确推得大地水准面高 (N) ,为此 ,在阐述顾及扰动重力垂直梯度的大地水准面与似大地水准面 (ζ)之差的公式基础上 ,对它们在三种模型上进行了数值计算和检核。结果表明 ,该公式的精度是相当高的 ,由此可以将正常高化算为正高 (海拔高 )
The development of geodesy calls for determining precisely height of geoid ( N ). If the difference between geoid and quasi geoid ( ζ ) can be expresscd by a precisc formula and is known, N can be determined. Three models are used and the ( N-ζ ) calculated in this paper. The numerical results indicate that the accuracy of formula is very high, and the normal height can be reduced precisely to orthometric height.
出处
《成都理工学院学报》
CSCD
北大核心
2002年第1期105-109,共5页
Journal of Chengdu University of Technology
基金
国家自然科学基金 (4 98740 1 6496742 0 8)
国家攀登计划资助项目
