International Conference «Mathematical and Informational Technologies, MIT-2013»
(X Conference «Computational and Informational Technologies for Science,
Engineering and Education»)

Vrnjacka Banja, Serbia, September, 5–8, 2013

Budva, Montenegro, September, 9-14, 2013

Beisel S.   Гусяков В.К.   Rychkov A.D.   Chubarov L.  

Numerical simulation of tsunami runup on the coast near the Severo-Kurilsk town and Malokurilskaya Bay

Reporter: Beisel S.

Works on improvement the assessment of tsunami manifestation off the coast necessitated the creation of methods, algorithms and software for the simulation of tsunami runup on coastal zone to determine the flood zone, the distribution of flow rates maximum depths and duration of flooding.
One of the key requirements for this toolbox is the ability to use it in a real water areas with sharply varying bathymetry, greatly changing steepness of terrain adjacent to the shore line, irregularity of "water-land" border.
The authors examined various approaches, including techniques based on the use of analytically given boundary conditions, methods of extrapolation and algorithms of through calculation. According to the tests’ results the method of large particles, proposed in [1], was chosen as the basic algorithm.
The results presented in the report are related to the investigation of the behavior of tsunami waves near the two parts of the coast of the Far East of Russia - in the vicinity of the Severo-Kurilsk town and Malokurilskaya Bay.
The authors considered the model tsunamis generated by hypothetical tsunamigenic earthquakes, the sources of which were calculated using the dislocation model of Podiapolsky-Gusyiakov-Okada. The processes of waves propagation over the ocean and runup on the shore are modeled within the framework of the shallow water equations. The wave runup is calculated using specialized design module that performs the modeling of tsunami runup on the detailed computational grids covering the pre-selected parts of the coastal zone. The exchange of information with the domain of modeling of wave propagation from the source to the coastal zone is carried out through the boundaries. The results are compared with the known data of field observations.

The work was supported by the Russian Foundation for Basic Research (projects 12-05-00894, 12-07-00406), by the Program of Integration Research, SB RAS (projects 117A, 37B), and by the Grant Council of the President of Russian Federation for state support of leading schientific schools of RF (project NSh-6293.2012.9).

[1] Belotserkovskii O.M., Davydov Yu.M. (1982) The method of large particles in gas dynamics. Numerical experiments // Nauka. 392 p. (In Russian).

Abstracts file: RunUp_FarEast-s.doc

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