Publications by authors named "Helios Chiri"

Article Synopsis
  • Oil spill risk assessments help offshore oil and gas industries reduce the impact of deep spills by simulating various environmental conditions.
  • A new methodology integrates both surface and subsurface transport of oil using data-mining techniques to select the most relevant met-ocean scenarios.
  • This approach was successfully applied in the North Sea, demonstrating its ability to predict oil contamination probabilities effectively while maintaining efficient computational demands.
View Article and Find Full Text PDF

Past major oil spill disasters, such as the Prestige or the Deepwater Horizon accidents, have shown that spilled oil may drift across the ocean for months before being controlled or reaching the coast. However, existing oil spill modelling systems can only provide short-term trajectory simulations, being limited by the typical met-ocean forecast time coverage. In this paper, we propose a methodology for mid-long term (1-6 months) probabilistic predictions of oil spill trajectories, based on a combination of data mining techniques, statistical pattern modelling and probabilistic Lagrangian simulations.

View Article and Find Full Text PDF

This paper presents a novel operational oil spill modelling system based on HF radar currents, implemented in a northwest European shelf sea. The system integrates Open Modal Analysis (OMA), Short Term Prediction algorithms (STPS) and an oil spill model to simulate oil spill trajectories. A set of 18 buoys was used to assess the accuracy of the system for trajectory forecast and to evaluate the benefits of HF radar data compared to the use of currents from a hydrodynamic model (HDM).

View Article and Find Full Text PDF

This paper presents a high-resolution operational forecast system for providing support to oil spill response in Belfast Lough. The system comprises an operational oceanographic module coupled to an oil spill forecast module that is integrated in a user-friendly web application. The oceanographic module is based on Delft3D model which uses daily boundary conditions and meteorological forcing obtained from COPERNICUS and from the UK Meteorological Office.

View Article and Find Full Text PDF