We develop a new central-upwind scheme for a one-dimensional Savage-Hutter type model of submarine landslides and generated tsunami waves. Our scheme exactly preserves physically relevant steady-states, preserves positivity of water depth, is insensitive to choice of discretization of nonconservative products, and properly incorporates friction inherent in the model. We apply our scheme to a va...

The shallowwater equations are a commonly accepted approximation governing tsunami propagation. Numerically capturing certain features of local tsunami inundation requires solving these equations in their physically relevant conservative form, as integral conservation laws for depth and momentum. This form of the equations presents challenges when trying to numerically model global tsunami prop...

The understanding of meteotsunamis—significant atmospherically generated long ocean waves in the tsunami frequency band—has advanced considerably during the last two decades. Scientists and specialists use near-field in situ data and remote observations, as well as atmospheric and ocean modeling, to study destructive events. The phenomenon has been reported and investigated worldwide, indicatin...

The Storegga tsunami, dated in Norway to 8150±30 cal. years BP, hit many countries bordering the North Sea. Run-ups of >30 m occurred and 1000s kilometres coast were impacted. Whilst recent modelling successfully generated a tsunami wave train, heights velocities, it under-estimated run-ups. Work presented here used luminescence directly date deposits at type site Maryton, Aberdeenshire Scotlan...

Alındığı Tarih: 24.08.2012 Kabul Tarihi: 7.12.2012 Yazışma adresi: World Health Organization WHO Press 20 Avenue Appia, Office 4152 CH 1211 Geneve 27, Switzerland e-posta: [email protected] [email protected] On 11 March 2011, an earthquake with a magnitude of 9.0 on the Richter scale struck off the coast of Japan, triggering destructive tsunami waves of up to 40 metres high that swept over ...

We study the modulation of atmospheric nonisothermality and wind shears on the propagation of seismic tsunami-excited gravity waves by virtue of the vertical wavenumber, m (with its imaginary and real parts, mi and mr, respectively), within a correlated characteristic range of tsunami wave periods in tens of minutes. A generalized dispersion relation of inertio-acoustic-gravity (IAG) waves is o...

In the context of dam breaks, tsunami, and flash floods, it is paramount to quantify the time-history of forces by the rapidly transient flow to vertical structures and the characteristics of the induced flow patterns. To resemble on-land tsunami-induced flow, a free-surface-piercing structure is exposed to long leading depression waves in a tsunami flume where long waves run up and down a 1:40...

The sea is rarely level. Its surface is perturbed in many ways over contrasting spatial and temporal scales. The wind ruffles the surface of the water generating waves, which travel across the oceans as swell. Groups of waves propagating from one storm interact with wind waves and swell from other directions generated by other storms, and account for the irregular surf where they meet the shore...

We put forward a simple but effective explicit method of recovering initial data for the nonlinear shallow water system from reading at shoreline. then apply our to tsunami waves inverse problem.

Storm surges cause coastal inundation due to setup of the water surface resulting from atmospheric pressure, surface winds and breaking waves. Here we show that during Typhoon Haiyan, the setup generated by breaking waves near the fringing-reef-protected town of Hernani, the Philippines, oscillated with the incidence of large and small wave groups, and steepened into a tsunami-like wave that ca...