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Calculation of Geometric Geoidal Height by GPS Surveying on 1st and 2nd order Benchmark Line  

Lee, Suk-Bae (진주산업대학교 토목공학과)
Kim, Jin-Soo (부경대학교 건설공학부)
Kim, Cheol-Young (진주산업대학교 토목공학과)
Kwon, Jay-Hyoun (서울시립대학교 공간정보공학과)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.27, no.2, 2009 , pp. 213-223 More about this Journal
Abstract
In geoid modelling field, it is very important the GPS/leveling data because it could be check-out the accuracy of gravimetric geoid and computed the hybrid geoid. In this study, GPS surveying was accomplished in the test area including mountainous area to improve the GPS/leveling data density in Korea. And the geometric geoidal heights was calculated using the GPS/leveling data in the test area and the accuracy of the geoidal heights was analyzed. For this study, GPS surveying was accomplished on the 211 1st and 2nd order benchmarks in Gyeongbuk province and 198 GPS/leveling data were achieved after both baseline analysis and network adjustment. Geometric geoidal heights were calculated using these 198 GPS/leveling data and the accuracy analysis was done by comparison with the geoidal heights from EGM2008 geopotential model. The results showed that the bias and standard deviation computed from 190 GPS/leveling data after gross removal was -0.185$\pm$0.079m. And also, the accuracy analyses according to the benchmark order, baseline length, and altitude were accomplished.
Keywords
GPS/leveling; Geometric geoidal height; EGM2008; Benchmark;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By SCOPUS : 0
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1 원지훈 (2005), 중력과 GPS 자료에 의한 한반도 남부 및 인근 해역의 정밀 지오이드 연구, 박사학위논문,부산대학교 대학원, p. 2
2 이석배, 황용진, 이재원 (2004), GPS/leveling 자료에 의한 기하학적 지오이드고의 산출, 한국측량학회지, 한국측량학회, 제 22권, 제 1호, pp. 45-52
3 Choi, K. S. and Lee, J. M. (1997), GPS/ leveling Geoid of the Southern Korean Peninsula, Korean Journal of Geophysical Research, Vol.25, pp. 15-22
4 IAGA (2005), International Geomagnetic Reference Field, The International Association of Geomagnetism and Aeronomy, http://www.ngdc.noaa.gov/IAGA/vmod/grf.html
5 Pavlis, N. K., Holmes, S. A., Kenyon, S. C., and Factor, J. K. (2008), EGM2008:An Overview of its Development and Evaluation, An IAG International Symposium on Gravity, Geoid and Earth Observation 2008, 23-27 June, Chania, Crete, Greece
6 Pavlis, N. K. (2009), EGM2008-WGS 84 Version, National Geospatial-Intelligence Agency, http:// earthinfo. nga.mil/GandG/wgs84/gravitymod/egm2008/egm08_ wgs84.html
7 Leick, A. (1995), GPS Satellite Surveying, Second edition, John Wiley & Sons, Inc., p. 560
8 윤홍식, 이동하 (2005), Least square collocation에 의한 GPS/leveling의 정확도 개선, 한국측량학회지, 한국측량학회, 제 23권, 제 4호, pp. 385-392
9 전인식 (2007), 측량전문품셈, 건설연구사, p. 27
10 이석배, 김진수, 김철영 (2008), GPS/leveling 데이터에 의한 EGM2008 지구중력장모델의 평가, 한국지형공간정보학회지, 한국지형공간정보학회, 제 16권, 제 3호, pp. 117-126
11 Kuroishi, Y. (2001), An improved gravimetric geoid for Japan, JGEOID98, and relationships to marine gravity data, J. of Geodesy, Vol.74, pp. 745-755   DOI   ScienceOn
12 Hofmann-Wellenhof, B., and Moritz, H. (2005), Physical Geodecy, SpringerWineNewYork, pp. 157-172
13 Kearsley, A. H. W. (1988), The determination of geoid-ellipsoid separation for GPS levelling, The Australian Surveyor, 34(1), pp. 11-18   DOI   ScienceOn
14 Featherstone, W. E., Kirby, J. E., Kearsley, A. H. W., Cilliland, J. R., and Johnston, G. M. (2001), The AUSGeoid98 geoid model of Australia : data treatment, computations, and comparisons with GPS-levelling data, J. of Geodesy, V.75, pp. 313-330   DOI   ScienceOn