Damages and so Forth due to Heavy Rain from July 1st, 2021 (as of July 1st, 2021, 10:30), Ministry of Land, Infrastructure, Transport and Tourism [令和3年7月1日からの大雨による被害状況等について(第23報)災害情報, 令和3年10:30現在, 国土交通省). (In Japanese) https://www.mlit.go.jp/common/001426384.pdf

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.