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Operational oil spill trajectory modelling using HF radar currents: A northwest European continental shelf case study
Ana J Abascal1, Jorge Sanchez2, Helios Chiri1
1Environmental Hydraulics Institute, Universidad de Cantabria, Avda. Isabel Torres, 15, Parque Científico y Tecnológico de Cantabria, 39011 Santander, Spain.
Marine Pollution Bulletin
|April 27, 2017
Summary
This study introduces an advanced oil spill model using High-Frequency (HF) radar currents for improved trajectory forecasting. HF radar data significantly enhances accuracy, reducing errors by 40% compared to traditional hydrodynamic models.
Area of Science:
- Oceanography
- Environmental Modeling
- Remote Sensing
Background:
- Operational oil spill modeling is crucial for environmental protection.
- Existing hydrodynamic models (HDM) have limitations in accurately representing real-time ocean currents.
- High-Frequency (HF) radar offers a promising alternative for near-surface current data.
Purpose of the Study:
- To develop and validate a novel operational oil spill modeling system using HF radar currents.
- To assess the accuracy of simulated oil spill trajectories compared to buoy data.
- To evaluate the benefits of HF radar data over hydrodynamic model outputs.
Main Methods:
- Integration of Open Modal Analysis (OMA) and Short Term Prediction algorithms (STPS) with an oil spill model.
- Implementation in a northwest European shelf sea.
- Validation using 18 buoys for trajectory forecast assessment.
Main Results:
- Simulated trajectories using OMA currents showed higher accuracy than those from HDM.
- A 40% reduction in mean error was observed after 48 hours.
- The STPS method demonstrated forecast skill up to 6 hours ahead.
Conclusions:
- HF radar data provides significant benefits for operational oil spill modeling.
- The developed system demonstrates improved accuracy and reliability.
- The approach is adaptable to other regions with HF radar coverage.
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