个人简介
Prof. Masaji Watanabe
Prof. Masaji Watanabe
Faculty of Mathematics and Natural Sciences, Andalas University, Republic of Indonesia Okayama University, Japan
标题: Mathematical modeling and computational analysis of underwater topography with global positioning and echo sounder data
摘要: 
Recent disastrous flood events include 2018 Japan floods (July 2018) and Typhoon 19 (Hagibis, October 2019) and the following heavy rain event, and July 2020 heavy rain disaster. Such disastrous events may increase in frequency and scale as the climate change progresses, and it is important to update information concerning water areas such as rivers, reservoirs, and coastal waters. This study demonstrates mathematical techniques to analyze underwater topography with output from a GPS receiver and an echo sounder unit. Longitude and latitude components of ellipsoidal data recorded by a GPS receiver are projected to a rectangular coordinate system, and combined with vertical components including data recorded by an echo sounder unit so that tracks on an underwater floor are obtained. A mapping on a finite dimensional space of continuous functions over a triangular mesh is formulated, and its fixed point corresponds to an underwater floor that fits the tracks. Our techniques are illustrated with data obtained in recent measurement conducted in a reservoir.
简介: 

Research Activity:Masaji Watanabe works in research areas of applied mathematics. His research fields include underwater topography. He has been working on measuremental techniques and mathematical formulations in joint studies.

Awards:

1.Best Paper Awards, The 3rd International Conference on Advances in Intelligent Systems in Bioinformatics, Chem-Informatics, Business Intelligence, Soceal Media and Cybernetics 2015 (InteliSys 2015), The Bali Dynasty Resort, Bali, Indonesia, From 19-20 December 2015.

2.BEST PRESENTAR AWARD, PAPER ID: 033-PEN-TiSERIC, Recent Trend in Science and Engineering Research International Conference 2017, 17-18 February 2017, Penang, Malaysia. Received on February 18th, 2017.

3.The IRES Excellent Paper Award, 134th The IRES International Conference held in Kuala Lumpur Malaysia, Received on August 2nd, 2018