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Iwakami, S., Tamega, M., Jimbo, S., & Watanabe, M. (2019). Numerical Techniques for Underwater Topographic Measurement with GPS and Echo Sounder. International Journal of Information System & Technology, 3, 81-85. http://ijistech.org/ijistech/index.php/ijistech/article/view/37

has been cited by the following article:

• TITLE: Measurement and Computational Study of Underwater Topography

  AUTHORS: Satoshi Iwakami, Masahiko Tamega, Masahide Sanada, Michiaki Mohri, Yoshitaka Iwakami, Naoki Okamoto, Eishi Mitsui, Hidetaka Chikamori, Ryosuke Akoh, Shuji Jimbo, Masaji Watanabe

  KEYWORDS: Topographic Change, Water Area, RTK-GPS, Echo Sounder

  JOURNAL NAME: Journal of Geoscience and Environment Protection, Vol.11 No.4, April 30, 2023

  ABSTRACT: This paper reports previously obtained results concerning topographic change in a water area. Latitude-longitude components of positional data obtained from a GPS receiver were transformed to planar orthogonal coordinates, and vertical components of positional data were combined with depth data obtained from an echo sounder. A piecewise linear function defined on a triangular mesh represented a surface that fitted measurement results. This study applied those techniques to data obtained in measurement of November, 2021 and data obtained in measurement of September, 2022.