Oil spills are one of the most hazardous pollutants in marine environments with potentially devastating impacts on ecosystems, human health, and socio-economic sectors. Therefore, it is utmost importance to establish a prompt efficient system for forecasting monitoring such spills, order minimize their impacts. The present work focuses numerical simulation drift spread oil slicks environments. ...

Abstract As the severity and occurrence of flood events tend to intensify with climate change, need for forecasting capability increases. In this regard, Flood Detection, Alert rapid Mapping (FloodDAM) project, funded by Space Climate Observatory initiatives, was set out develop pre-operational tools dedicated enabling quick responses in flood-prone areas, improve reactivity decision support sy...

Abstract A surrogate model is developed to accurately approximate a two-dimensional hydrodynamics numerical solver in order conduct reduced-cost variance-based global sensitivity analysis of the hydraulic state. The impact uncertainties river bottom friction and boundary conditions on simulated water depth analyzed for quasi-unsteady flows. An autoencoder technique adapted non-linear variable d...

In this paper we present recent evolvements of three robust numerical models for the simulation evolution wave fields and hydrodynamic circulation in gulfs coastal areas with large harbours significant urban port facilities. The are integrated into a single software suite development decision support tool to provide reliable forecasts sea states prevailing at selected important ports worldwide....

Due to the impacts of climate change, there is an urgent need scale up existing, and develop novel, renewable energy technologies. Although are many types technology, ocean energy, including established offshore wind, novel wave tidal converters, offers opportunities due abundance resource, availability sea space, (for tidal) predictability. However, extraction from environment will influence s...

Management of estuarine systems under anthropogenic pressures related to port settlement and development requires thorough understanding about the long-term sediment dynamics in area. In an era growing shipping traffic ever larger ships; millions tons bottom sediments are dredged annually all over world major question concerning dredging operations is not whether they should be done, because it...

In this paper, we address the impact of agricultural expansion on hydrological patterns water and sediment budget in one largest floodplains along Cambodian Mekong since 1980s, using field (water level, discharge, sediment, rainfall, groundwater level) remote sensing (land use, surface suspended sediment) data, numerical simulations. Specifically, while both concentration level River around Kam...

The accurate prediction of sand transport rates in the coastal zone depends not only upon the choice of sediment transport model but also, rather critically, upon the formulation used to predict the bed roughness (ks). Sand transport rates are modelled here using both a One-equation, turbulence-closure, TKE-model and also Bijker’s sand transport model. Following some remarks about the nature an...

A tidal bore may form in a converging channel with a funnel shape when the tidal range exceeds 6–9 m. The advancing surge has a major impact on the estuarine ecosystem. Physical modelling of an undular bore has been conducted based upon a quasi-steady flow analogy. The experimental data highlight rapid flow redistributions between successive wave troughs and crests as well as large bottom shear...