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| Titel |
Comparable analysis of the distribution functions of runup heights of the 1896, 1933 and 2011 Japanese Tsunamis in the Sanriku area |
| VerfasserIn |
B. H. Choi, B. I. Min, E. Pelinovsky, Y. Tsuji, K. O. Kim |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 12, no. 5 ; Nr. 12, no. 5 (2012-05-16), S.1463-1467 |
| Datensatznummer |
250010813
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| Publikation (Nr.) |
 copernicus.org/nhess-12-1463-2012.pdf |
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| Zusammenfassung |
| Data from a field survey of the 2011 Tohoku-oki tsunami in the Sanriku area
of Japan is used to plot the distribution function of runup heights along
the coast. It is shown that the distribution function can be approximated by
a theoretical log-normal curve. The characteristics of the distribution
functions of the 2011 event are compared with data from two previous
catastrophic tsunamis (1896 and 1933) that occurred in almost the same
region. The number of observations during the last tsunami is very large,
which provides an opportunity to revise the conception of the distribution
of tsunami wave heights and the relationship between statistical
characteristics and the number of observed runup heights suggested by Kajiura
(1983) based on a small amount of data on previous tsunamis.
The distribution function of the 2011 event demonstrates the sensitivity to the
number of measurements (many of them cannot be considered independent
measurements) and can be used to determine the characteristic scale of the
coast, which corresponds to the statistical independence of observed wave
heights. |
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