Determination of Geodetic Figure by the Differential Scale Factor Method and Their Error Evaluation

DOI
  • FUJII Yoichiro
    Department of Earth's Sciences, Faculty of Science, Ibaraki University
  • NAKANO Koji
    Department of Earth's Sciences, Faculty of Science, Ibaraki University

Bibliographic Information

Other Title
  • 微分スケールファクター法による測地図形の決定とその誤差評価

Abstract

Differential scale factor method in EDM was first introduced by WHITE (1973), and succeeding study was made by TANAKA (1978) in Japan. The present authors added to these studies a formula for evaluating the variance-covariance matrix of adjusted side-length, and made a field test observation in Iwase, a town in the Ibaraki Prefecture, Japan, The followings are main conclusions: (1) When the observations are carried out even under unstable atmospheric con-ditions, we can obtain reliable values that are very close to the one under normal atmospheric condition, (2) Standard deviations of the adjusted side-lengths are within range of several milimeters, and never exceed ten millimeters, (3) Some times we are obliged to get systematically, deviated values as compared with normal values, (4) This method is more suitable to estimate crustal shear strain, because under this method figure is more exactly determined than the size of the geodetic figure.

Journal

Details 詳細情報について

  • CRID
    1390282679044957696
  • NII Article ID
    130004189441
  • DOI
    10.11366/sokuchi1954.32.282
  • ISSN
    2185517X
    00380830
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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