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Study on Change of Topography in Closed Water Area with Positioning Data and Depth Data

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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.
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Keywords: Clinometer; Compass; Echo-Sounder; Finite Element; Gauss-Krüger Projection; RTK-GPS

Document Type: Research Article

Affiliations: Okayama University Graduate School of Environmental and Life Science, 1-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan

Publication date: April 1, 2017

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  • ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
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