Skip to main content
Earth, Planets and Space
Download PDF
  • Article
  • Published:

Evaluation of the accuracy of the new Primary Precise Geodetic Network in Korea

Earth, Planets and Space volume 50, pages 629–634 (1998)Cite this article

Abstract

Accuracy of the Primary Precise Geodetic Network (PPGN) established during the period of 1975–1994 in Korea is investigated through an analysis of residual from free network adjustment. The PPGN, composed of 1155 points with mean side-length of 11 km, was surveyed by EDM trilateration to revise old triangulation network established in 1910 s. A-posteriori standard deviation of unit weight is 3.8 × 10−6 of the observed length. Most of the estimated error ellipses of horizontal coordinates are nearly circular with a radius <5 cm except those in the marginal part of the network. Mean error of the adjusted coordinates was ±4.5 cm, a value good enough for a geodetic control network of current standard, and as the reference for future crustal deformation studies.

References

  • Choi, J. H. and Y. S. Choi, Precise determination of the geodetic primary frameworks of Korea, J. Korean Soc. Geod., Photogramm. Cartogr., 11, No. 1, 483–486, 1994 (in Korean).

    Google Scholar 

  • Choi, J. H. and H. Sato, Horizontal strain of the crust in Korea inferred from geodetic data, J. Geod. Soc. Japan, 43, 159–180, 1997.

    Google Scholar 

  • Geographical Survey Institute, 100 Years History of Surveying, Special Publication, pp. 456–486, Japanese Association of Surveyors, 1970 (in Japanese).

  • Hagiwara, Y., Analysis of gravity values in Japan, Bull. Earthq. Rec. Inst., 45, 1091–1228, 1967.

    Google Scholar 

  • Harada, T., Relation degree of freedom of geodetic networks and defect of rank in normal equation of the free network adjustment, J. Geod. Soc. Japan, 35, 287–297, 1989 (in Japanese).

    Google Scholar 

  • Mittermayer, E., A generalization of the least-square method for the adjustment of free network, Bull. Geodesique, 104, 139–157, 1972.

    Article  Google Scholar 

  • National Geography Institute of Korea, Establishment of the new precise primary geodetic networks, Special issue of Technical Report, 1994 (in Korean).

  • Omori, M., The computation of the vertical deviation and unification of datum in Far East Asia, J. Geod. Soc. Japan, 7, 62–98, 1962.

    Google Scholar 

  • Ono, K., In the astrogeodetic deflection of the vertical in Japan, J. Phys. Earth., 22, 25–69, 1974.

    Article  Google Scholar 

  • Savage, J. C. and R. O. Bufford, Geodetic determination of relative plate motion in Central California, J. Geophys. Res., 78, 832–843, 1979.

    Article  Google Scholar 

  • Tajima, M., H. Sato, and N. Suda, Temperature observation of lower atmosphere by Katoon for the purpose of improving the accuracy of electro-optical distance measurement, J. Geod. Soc. Japan, 15, 121–129, 1970 (in Japanese).

    Google Scholar 

  • Tobita, M., Application of the precise geodetic networks and integration of the coordinates system, Technical Memorandum of Geogr. Surv. Inst., No. 24, pp. 1–37, 1994a.

  • Tobita, M., Precise determination of the geodetic framework of Japan, Bull. Geogr. Surv. Inst., 40, 7–38, 1994b.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Civil Engineering, Sungkyunkwan University, Korea

    Jae-Hwa Choi

Authors
  1. Jae-Hwa Choi
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Jae-Hwa Choi.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Choi, JH. Evaluation of the accuracy of the new Primary Precise Geodetic Network in Korea. Earth Planet Sp 50, 629–634 (1998). https://doi.org/10.1186/BF03352157

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1186/BF03352157

Keywords