A Determination of an Abrupt Motion of the Sea Bottom by Using Snapshot Data of Water Waves
Comparison of the recovered sudden displacement of the sea bottom with the exact displacement for four cases of regularization parameters ((a)–(d): noise level ). Legend: the dotted and solid lines stand for the exact in (6.1) and the recovered sudden displacement of the sea bottom, respectively. The lines show good agreement with each other when the regularization parameter .
(e) Residual (the norm of difference between the exact and regularized displacement divided by the norm of the exact)
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