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Calculation of Precision Orthometric Height by Orthometric Correction  

윤홍식 (성균관대학교 토목환경공학과)
조재명 (성균관대학교 토목환경공학과)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.22, no.2, 2004 , pp. 117-125 More about this Journal
Abstract
This paper describes the orthometric correction for determining the orthometric height obtained from height difference by precise leveling or GPS leveling. Five formulas are used to calculate the orthometric correction for two level lines as an examples. Based on the comparison results Strang van Hees' formula that use the surface gravity is better than the others to compute the orthometric corrections on spirit leveling and GPS/Leveling in an area where mean hight is high and terrain relief show high variability. Further research is necessary to improve the results of this study using Mader method, etc..
Keywords
Orthometric height; Orthometric correction; Gravity correction;
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