Figure 2 - uploaded by Victor Kaistrenko
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Computational domain for numerical simulation of tsunami wave due to 2011-Earthquake off the Pacific Coast of Tohoku, Japan and 3D projection of the initial water displacement of 2011- Earthquake off the Pacific Coast of Tohoku, Japan (USGS, http://earth quake.usgs.gov/earthquakes/eqinthenews/2011/usc0001xgp/finite_fault.php).
Source publication
We proposed a rapid method for forecasting tsunami runup on the coasts combining 2-D numerical model and 1-D analytical runup theory. In the first step, the 2-D numerical simulations of tsunami generation and propagation are performed assuming impermeable boundary conditions of a 5-10m depth at the last sea points (equivalent to a wall). Then the t...
Contexts in source publication
Context 1
... finite-difference model (Choi et al., 2003) is constructed to simulate the tsunami generation and propagation using the linear shallow-water equation with a spherical coordinate system covering the north-east of Pacific Ocean area (Fig. 2); mesh dimension, 5040 x 6000, mesh size, 15 arc second (450 meter) and time step, 0.5 sec. The initial surface profile of the tsunami can be estimated by the method of Manshinha and Smylie (1971). According to our initial assessment in this case (2011-Earthquake off the Pacific Coast of Tohoku, Japan), the determined initial condition ...
Context 2
... initial surface water displacement are converted to displacement by removing the instrument response and then used to constrain the slip history based on a finite fault inverse algorithm. Figure 2. Shows the initial water displacement of 2011- Earthquake off the Pacific Coast of Tohoku, Japan ...
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The multi-grid algorithm for the tsunami propagation computation from the initial source to the coastline that uses scale switching has been developed. Computations are carried out on a sequence of grids with various resolutions where one is embedded into another. Tsunami wave parameters are transferred from a larger domain to the embedded smaller...
