 |
| Titel |
Influence of the nonlinearity on statistical characteristics of long wave runup |
| VerfasserIn |
P. Denissenko, I. Didenkulova, E. Pelinovsky, J. Pearson |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1023-5809
|
| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 18, no. 6 ; Nr. 18, no. 6 (2011-12-14), S.967-975 |
| Datensatznummer |
250014009
|
| Publikation (Nr.) |
 copernicus.org/npg-18-967-2011.pdf |
|
|
|
|
|
| Zusammenfassung |
| Runup of long irregular waves on a plane beach is studied experimentally in
the water flume at the University of Warwick. Statistics of wave runup
(displacement and velocity of the moving shoreline and their extreme values)
is analyzed for the incident wave field with the narrow band spectrum for
different amplitudes of incident waves (different values of the breaking
parameter Brσ). It is shown experimentally that the distribution of
the shoreline velocity does not depend on Brσ and coincides with
the distribution of the vertical velocity in the incident wave field as it
is predicted in the statistical theory of nonlinear long wave runup.
Statistics of runup amplitudes shows the same behavior as that of the
incident wave amplitudes. However, the distribution of the wave runup on a
beach differs from the statistics of the incident wave elevation. The mean
sea level at the coast rises with an increase in Brσ causing wave
set-up on a beach, which agrees with the theoretical predictions. At the
same time values of skewness and kurtosis for wave runup are similar to
those for the incident wave field and they might be used for the forecast of
sea floods at the coast. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|