Study on a bottom topography of a lake using positioning data and depth data

K. Yamamoto, H. Hashentuya, Y. Otani, Y. He, M. Watanabe

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The bottom topography of a lake is investigated. Numerical techniques to utilize positioning data and depth data are described. Data sets obtained in RTK-GPS positioning consist mainly of temporal, latitudinal, longitudinal, and altitudinal records. Data sets obtained in echo-sounder measurement consist of temporal records and depths. The latitudinal and longitudinal data are transformed to rectangular coordinates by the Gauss-Krüger Projection, and the resultant positional data sets are synchronized with depths to yield trajectories over the lake's floor. A bottom topography over a triangular mesh is updated using the positioning data and the depth data.

Original languageEnglish
Pages (from-to)C525-C538
JournalANZIAM Journal
Volume53
Issue numberSUPPL
Publication statusPublished - Dec 1 2011

ASJC Scopus subject areas

  • Mathematics (miscellaneous)

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