Study on change of topography in closed water area with positioning data and depth data

Narisu Chen, Qing Xiang, Kazuhiro Yamamoto, Masaji Watanabe

Research output: Contribution to journalArticle


Techniques to update bottom topographical data in the closed water area are illustrated. Positional data from a RTK-GPS are transformed to rectangular coordinates by the Gauss-Krüger projection, and synchronized with depth data from an echo-sounder to generate three dimensional topographical data. Three dimensional topographical data are corrected to reduce errors due to the movement of a boat with outcomes from a clinometer and a compass.

Original languageEnglish
Pages (from-to)3626-3632
Number of pages7
JournalAdvanced Science Letters
Issue number4
Publication statusPublished - 2017



  • Clinometer
  • Compass
  • Echo-Sounder
  • Finite Element
  • Gauss-Krüger Projection

ASJC Scopus subject areas

  • Health(social science)
  • Computer Science(all)
  • Education
  • Mathematics(all)
  • Environmental Science(all)
  • Engineering(all)
  • Energy(all)

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