Evaluation of recent global geopotential models based on GPS/levelling data over Afyonkarahisar (Turkey)

被引：0
|
作者：
Yilmaz, Ibrahim [1 ]
Yilmaz, Mustafa [2 ]
Gullu, Mevlut [1 ]
Turgut, Bayram [1 ]
机构：
[1] Afyon Kocatepe Univ, Fac Engn, Dept Geodesy & Photogrammetry, TR-03200 Afyon, Turkey
[2] Osmangazi Elect Distribut Inc, Directorship Afyonkarahisar, TR-03200 Afyon, Turkey
来源：
SCIENTIFIC RESEARCH AND ESSAYS | 2010年 / 5卷 / 05期
关键词：
Geopotential model; GPS/levelling; geoid height; EGM96; EIGEN-5C; EGM2008(360); EGM2008; HEIGHTS;
D O I：
暂无
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
This study presents the evaluation of the global geo-potential models EGM96, EIGEN-5C, EGM2008(360) and EGM2008 by comparing model based on geoid heights to the GPS/levelling based on geoid heights over Afyonkarahisar study area in order to find the geopotential model that best fits the study area to be used in a further geoid determination at regional and national scales. The study area consists of 313 control points that belong to the Turkish National Triangulation Network, covering a rough area. The geoid height residuals are investigated by standard deviation value after fitting tilt at discrete points, and height-dependent evaluations have been performed. The evaluation results revealed that EGM2008 fits best to the GPS/levelling based on geoid heights than the other models with significant improvements in the study area.
引用
收藏
页码：484 / 493
页数：10
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