Evaluation of the accuracy of the new Primary Precise Geodetic Network in Korea
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- Choi Jae-Hwa
- Department of Civil Engineering, Sungkyunkwan University
Bibliographic Information
- Other Title
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- Evaluation of the accuracy of the new P
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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.
Journal
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- Earth, Planets and Space
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Earth, Planets and Space 50 (8), 629-634, 1998
Society of Geomagnetism and Earth, Planetary and Space Sciences, The Seismological Society of Japan, The Volcanological Society of Japan , The Geodetic Society of Japan , The Japanese Society for Planetary Sciences
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Details 詳細情報について
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- CRID
- 1390282681486893696
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- NII Article ID
- 10003735675
- 130003955929
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- NII Book ID
- AA11211921
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- ISSN
- 18805981
- 13438832
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- NDL BIB ID
- 4573115
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed