Height datum unification between Shenzhen and Hong Kong using the solution of the linearized fixed-gravimetric boundary value problem

Liming Zhang, Fei Li, Wu Chen, Chuanyin Zhang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

20 Citations (Scopus)

Abstract

The paper proposes a new algorithm to unify height datums in different regions, which is based on the solution of the linearized fixed-gravimetric boundary value problem. Compared with traditional methods, this method uses GPS ellipsoidal height and gravity disturbances on the surface of the earth to obtain a quasigeoid, which is not related to any local vertical datums. As an example, we calculate the height datum difference between Shenzhen and Hong Kong by applying this new method. The result shows that the height difference obtained by this new method is consistent with the ground leveling result to a few centimeters.
Original languageEnglish
Pages (from-to)411-417
Number of pages7
JournalJournal of Geodesy
Volume83
Issue number5
DOIs
Publication statusPublished - 1 Jan 2009

Keywords

  • Geodetic boundary value problem (GBVP)
  • Height datum
  • Height system unification
  • Quasigeoid

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology
  • Computers in Earth Sciences

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