A fast preliminary estimation model for transoceanic tsunami propagation

A new numerical model for propagation of tsunami waves

A new model for propagation of long waves including the coastal area is introduced. This model considers only the motion of the surface of the sea under the condition of preservation of mass and the sea floor is inserted into the model as an obstacle to the motion. Thus we obtain a constrained hyperbolic free-boundary problem which is then solved numerically by a minimizing method called the di...

Tsunami, PRELIMINARY

This paper considers an asset market subject to search frictions, where there are adjustment costs to the entry rate of buyers. An implication is that even in asset markets where the search frictions are very small, asset prices respond to changes in liquidity. Another implication is that asset liquidity is a state variable, the dynamics of which are analyzed. I demonstrate that transition path...

A new numerical model for simulating the propagation of and inundation by tsunami waves A new numerical model for simulating the propagation of and inundation by tsunami waves

A new unstructured grid, finite volume ocean model is described, that is suitable for flooding and drying problems. Here we derive the finite volume analogue of the P 1 −P1 finite element, by interpreting the advective term in the continuity equation in a flux sense. A corresponding non-overlapping control volume is then selected for the momentum equation. The resulting model employs the median...

Tsunami Wave Propagation

Adaptive search area for fast motion estimation

In this paper a new method for determining the search area for motion estimation algorithm based on block matching is suggested. In the proposed method the search area is adaptively found for each block of a frame. This search area is similar to that of the full search (FS) algorithm but smaller for most blocks of a frame. Therefore, the proposed algorithm is analogous to FS in terms of reg...