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Bottom Topography Observation in the Intertidal Zone Using a Camera Monitoring System  

Kim Tae-Rim (Kunsan University, College of Ocean Science & Technology)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.18, no.1, 2006 , pp. 63-68 More about this Journal
Abstract
Time series of waterline changes during a flood/ebb cycle can be utilized for supplementary data for measuring bottom topography. The waterlines extracted from consecutive images are substituted for depth contours using water level data. The distances between contours are quantified through a rectification image process. This technique is applied to the Keunpoolan beach in the Daeijak Island near Incheon. A camera monitoring technique supported by natural water level changes produces bottom topography with high precision. It is also less time consuming and more economical. The technique also can be utilized effectively to the physical modeling f3r measuring bottom changes in the three dimensional basin.
Keywords
intertidal zone; waterline; depth contours; rectification; camera monitoring;
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