The paper compares the mathematical equivalence between various leveling-adjustment techniques: the classical minimum variance estimate, free net method, and the least-squares collocation method, by using, as an example, a number of leveling loops in Northern Israel. Comparison of the results show that there are no significant differences between the free net and the least squares collocation methods. Even though the LSC method is more complicated and time consuming, it confirms the stability of points on the bedrock and the vertical movement of points on the high tension poles. It is concluded that it is convenient to use either the free net method or the LSC method on projects concerning precise leveling.

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  • Accession Number: 00609202
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 31 1991 12:00AM