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
書誌事項
- タイトル別名
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- Evaluation of the accuracy of the new P
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抄録
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.
収録刊行物
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- Earth, Planets and Space
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Earth, Planets and Space 50 (8), 629-634, 1998
地球電磁気・地球惑星圏学会 、公益社団法人 日本地震学会、特定非営利活動法人 日本火山学会、日本測地学会、日本惑星科学会
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詳細情報 詳細情報について
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- CRID
- 1390282681486893696
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- NII論文ID
- 10003735675
- 130003955929
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- NII書誌ID
- AA11211921
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- ISSN
- 18805981
- 13438832
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- NDL書誌ID
- 4573115
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可