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This article describes the bedforms formed by the 2011 Tohoku-Oki tsunami on the southern Sendai Plain, NE Japan. Integrated analyses of satellite images, field survey data, and X-ray radiographs revealed the natural shapes of these bedforms. The dominant bedforms are dunes and antidunes about ~20cm thick (high) and relatively flat because of their meter-scale wavelengths. Their morphologies reflect...
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