This project deals with the simulation and the optimization of stochastic flows where the uncertainties can be both in the data and in the models. The focus will be on handling the uncertainties coming from the turbulence models or thermodynamics models in dense-gas flows. Since the thermodynamic models for dense-gas flows are not well-known, it is mandatory to compute the probability density f...

Abstract It is currently believed that early Mars had a vast and shallow ocean, microbial life may have formed in it, albeit for short geological time. The evidence indicates during the existence of this large collisions occurred on surface Mars, which led to formation megatsunamis its palaeo-ocean. Previous research has reported effects tsunami waves ecosystems Earth's oceans. This work can ca...

The July 2020 Mw 7.8 Shumagin earthquake occurred in the seismic gap region along Aleutian subduction zone. This interplate generated a small tsunami, but with unusual long-period waves ranging between 40 and 90 min. We examined cause of such an anomalous ocean wave through source modeling inverted from tsunami geodetic data. Our model indicates that plate-boundary rupture area was confined at ...

We present a class of augmented approximate Riemann solvers for the shallow water equations in the presence of a variable bottom surface. These belong to the class of simple approximate solvers that use a set of propagating jump discontinuities, or waves, to approximate the true Riemann solution. Typically, a simple solver for a system of m conservation laws uses m such discontinuities. We pres...

Amurang Bay is a coastal area of South Minahasa Regency which densely populated but faces the subduction zone North Sulawesi has potential to generate earthquakes that trigger tsunami. The process tsunami disaster occurred quickly, impact was very destructive and caused many casualties. This study aims determine propagation waves with worst scenario Mw 8.5 in Bay. Numerical methods COMCOT softw...

In this work, we document two distinct tsunami deposits on the coasts of Ios Island, Aegean Sea, Greece. The younger deposit, dated 1831–1368 cal. BCE, includes both marine sediments and pumices from ∼1600 BCE Minoan eruption Santorini volcano. This is first evidence in Cycladic Islands North Santorini. Tsunami waves inundated Manganari coastal plain, southern coast Ios, over a distance >200 m ...

Tsunamis induced by rock slides constitute a severe hazard towards coastal fjord communities. Fjords are narrow and rugged with steep slopes, and modeling the shortfrequency and high-amplitude tsunamis in this environment is demanding. In the present paper, our ability (and the lack thereof) to simulate tsunami propagation and run-up in fjords for typical wave characteristics of rock-slide-indu...