海洋测绘2018，Vol.38Issue(3)：1-4,4.DOI:10.3969/j.issn.1671-3044.2018.03.001
超高阶重力场模型计算高程异常算法与实现
Algorithm and Realization of Ultra-high Degree Gravity Field Models to Calculate the Height Anomaly
李玉平1
作者信息
- 1. 新疆水利水电勘测设计研究院测绘工程院,新疆昌吉 831100
- 折叠
摘要
Abstract
This paper expounds in detail the mathematical model of height anomaly calculated by using the model bit coefficient of the earth gravity field.Selecting both recursive method between every other order and degree and standard forward column algorithm as the calculation method of association Legendre function.Taking high precision and order EIGEN-6C4 gravity field model as an example,the worldwide representative global 5°×5° resolution of 2701 points and 12 points of grid are selected to compute the height anomaly.Compared with the results of ICGEM website,the reliability of the calculation results of self-programming is proved.The global high altitude anomaly contour map of 5m contour interval has been created to visualize the global elevation anomaly.关键词
地球重力场模型/高程异常/缔合勒让德函数/标准向前列递推法/跨阶次递推法/EIGEN-6C4Key words
earth gravity field model/height anomaly/legendre function/recursive method between every other order and degree/standard forward column algorithm/EIGEN-6C4分类
天文与地球科学引用本文复制引用
李玉平..超高阶重力场模型计算高程异常算法与实现[J].海洋测绘,2018,38(3):1-4,4.
