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http://dx.doi.org/10.7319/kogsis.2017.25.2.057

Analysis of the Feasibility of GNSS/Geoid Technology in Determining Orthometric Height in Mountain  

Lee, Suk Bae (Department of Civil Engineering, Gyeongnam National University of Science and Technology)
Lee, Keun Sang (Department of Cadastre and Civil Engineering, Vision College of Jeonju)
Lee, Min Kun (Department of Civil Engineering, Gyeongnam National University of Science and Technology &, Korea Land and Geospatial Informatix Corporation Gyeongnam Regional Headquater)
Publication Information
Journal of Korean Society for Geospatial Information Science / v.25, no.2, 2017 , pp. 57-65 More about this Journal
Abstract
The purpose of this study is to analyze the feasibility of using Global Navigation Satellite System(GNSS)/Geoid technology in determining orthometric height in mountain. For the study, a test bed was set up in and around Mount Jiri and GNSS surveying were conducted. The orthometric height of 39 benchmarks was determined by applying the EGM2008, KNGeoid13, and KNGeoid14 geoid models and the accuracy was estimated by comparing with the offical Benchmarks orthometric height value issued by National Geographic Information Institute(NGII) and finally, the results were analyzed with the Aerial Photogrammetry Work Regulations. As a result of the study, it was found that the accuracy of the orthometric height determination by GNSS/Geoid technology was ${\pm}7.1cm$ when the KNGeoid14 geoid model was applied. And also, it can be confirmed that it is usable for the less than 1/1000 plotting scales as a vertical reference point for the aerial triangulation in Aerial Photogrammetry.
Keywords
GNSS/Geoid technology; Orthometric height determination; Geoid model; Aerial photogrammetry;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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