Observation of Whole Flushing Process of a River Sand Bar by a Flood Using X-Band Radar
AbstractMorphological changes during a flood event in July 2010 were observed with X-band marine radar at the mouth of Tenryu River, Shizuoka, Japan. Radar images were collected hourly for more than 72 h from the beginning of the flood and processed into time-averaged images. Changes in the morphology of the area were interpreted from the time-averaged images, revealing that the isolated river dune was washed away by the flood, the width of the river mouth increased gradually, and the river mouth terrace expanded radially. Furthermore, image analysis of the radar images was applied to estimate the migration speed of the brightness pattern, which is assumed to be a proxy of bottom undulation of the river bed. The migration was observed to be faster when the water level gradient between the river channel and sea increased. View Full-Text
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Takewaka, S. Observation of Whole Flushing Process of a River Sand Bar by a Flood Using X-Band Radar. J. Mar. Sci. Eng. 2016, 4, 32.
Takewaka S. Observation of Whole Flushing Process of a River Sand Bar by a Flood Using X-Band Radar. Journal of Marine Science and Engineering. 2016; 4(2):32.Chicago/Turabian Style
Takewaka, Satoshi. 2016. "Observation of Whole Flushing Process of a River Sand Bar by a Flood Using X-Band Radar." J. Mar. Sci. Eng. 4, no. 2: 32.
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