Estimation of the offshore form of tsunami waves |
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| Authors: | Isamu Aida |
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| Institution: | 1. Earthquake Research Institute, University of Tokyo, Bunkyo, 113, Tokyo, Japan
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| Abstract: | Estimation of the offshore form of tsunami waves based on an observed tidegage record at a bay head is attempted by means of an impulse response method and a characteristics method. For several tsunamis in Onagawa Bay, the results estimated by both methods are compared with the observed data at an offshore station. The correlation coefficient between the estimated and the observed values is 0.9 to 0.95, and the present methods are proved to be practical. The validity of the characteristics method is further confirmed in the case of Ofunato Bay. |
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