CAJ | 학술논문

西南边境地区地形复杂、山高坡陡、交通不便，采用常规的水准测量方法测量极为困难。本文引入最新的EGM2008地球重力场模型用于西南边境地区的GPS高程拟合，并探讨与分析了基于EGM2008地球重力场模型的高程拟合精度。本文以云南省“兴地睦边”农田整治重大项目中的某高山地测区为例，结合常规高程拟合数学模型与EGM2008地球重力场模型，建立区域似大地水准面精化模型进行GPS高程拟合，其结果与常规高程拟合数学模型的结果进行对比分析。
서남변경지구지형복잡、산고파두、교통불편，채용상규적수준측량방법측량겁위곤난。본문인입최신적EGM2008지구중력장모형용우서남변경지구적GPS고정의합，병탐토여분석료기우EGM2008지구중력장모형적고정의합정도。본문이운남성“흥지목변”농전정치중대항목중적모고산지측구위례，결합상규고정의합수학모형여EGM2008지구중력장모형，건립구역사대지수준면정화모형진행GPS고정의합，기결과여상규고정의합수학모형적결과진행대비분석。
Based on complex terrain, high mountains and steep slopes, inaccessible in the Southwest border region, the conventional method of leveling measurement is extremely difficult.This paper introduced the latest EGM2008 Earth gravity field model for GPS el-evation fitting in the southwest border region, and explored and analyzed elevation fitting accuracy based on EGM2008 Earth gravity field model.Through taking one alpine survey area of the"develop the local economy and harmony border area"major farmland reno-vated project in Yunnan as example, this paper combined with conventional height fitting mathematical models and EGM2008 Earth gravity field model, established regional quasi-geoid refinement model to GPS elevation fitting, the results were compared with con-ventional height fitting mathematical model results.