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http://dx.doi.org/10.5762/KAIS.2014.15.7.4595

Construction of Precise Local Geoid using GPS/Leveling  

Park, Joon-Kyu (Department of Civil Engineering, Seoil University)
Ahn, Jong-Soon (Department of Civil Engineering, Chungnam National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.15, no.7, 2014 , pp. 4595-4600 More about this Journal
Abstract
A geoid has great meaning as a vertical reference plane, and at this point when GPS measurement is vitalized, it is an important factor that makes level measurements with GPS possible. This study carried out GPS and leveling of newly created complex control points targeting Daejeon. The geoid for the precise area was built by calculating the plane location, elevation and the geoid of each reference point using GPS/Leveling. In addition, this study evaluated the potential of GPS leveling throughout the site calibration. The geoid for the precise area intervals of approximately 1.5km throughout the study was determined. The results highlight the possibility of leveling by estimating direct leveling performance and mean altitude deviation by less than 2cm. Based on the results, if a geoid model for the precise and wide area can be developed throughout ongoing research, survey tasks that require elevation can be streamlined and the efficiency maximized.
Keywords
Accuracy Evaluation; GPS/Leveling; Precise Local Geoid;
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Times Cited By KSCI : 6  (Citation Analysis)
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