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| Titel |
The UBO-TSUFD tsunami inundation model: validation and application to a tsunami case study focused on the city of Catania, Italy |
| VerfasserIn |
S. Tinti, R. Tonini |
| 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 ; 13, no. 7 ; Nr. 13, no. 7 (2013-07-12), S.1795-1816 |
| Datensatznummer |
250018555
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| Publikation (Nr.) |
 copernicus.org/nhess-13-1795-2013.pdf |
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| Zusammenfassung |
Nowadays numerical models are a powerful tool in tsunami research since they
can be used (i) to reconstruct modern and historical events, (ii) to cast new
light on tsunami sources by inverting tsunami data and observations, (iii) to
build scenarios in the frame of tsunami mitigation plans, and (iv) to produce
forecasts of tsunami impact and inundation in systems of early warning. In
parallel with the general recognition of the importance of numerical tsunami
simulations, the demand has grown for reliable tsunami codes, validated
through tests agreed upon by the tsunami community.
This paper presents the tsunami code UBO-TSUFD that has been developed at the
University of Bologna, Italy, and that solves the non-linear shallow water
(NSW) equations in a Cartesian frame, with inclusion of bottom friction and
exclusion of the Coriolis force, by means of a leapfrog (LF)
finite-difference scheme on a staggered grid and that accounts for moving
boundaries to compute sea inundation and withdrawal at the coast. Results of
UBO-TSUFD applied to four classical benchmark problems are shown: two
benchmarks are based on analytical solutions, one on a plane wave propagating
on a flat channel with a constant slope beach; and one on a laboratory
experiment. The code is proven to perform very satisfactorily since it
reproduces quite well the benchmark theoretical and experimental data.
Further, the code is applied to a realistic tsunami case: a scenario
of a tsunami threatening the coasts of eastern Sicily,
Italy, is defined and discussed based on the historical tsunami of 11 January 1693, i.e. one of the
most severe events in the Italian history. |
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