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A relocatable ocean model in support of environmental emergencies |
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| Authors: | Michela De Dominicis Silvia Falchetti Francesco Trotta Nadia Pinardi Luca Giacomelli Ernesto Napolitano Leopoldo Fazioli Roberto Sorgente Patrick J Haley Jr Pierre F J Lermusiaux Flavio Martins Michele Cocco |
| Institution: | 1. Istituto Nazionale di Geofisica e Vulcanologia, Bologna, Italy 2. Department of Physics and Astronomy, University of Bologna, Bologna, Italy 3. ENEA, Rome, Italy 4. CNR-IAMC, Oristano, Italy 5. Massachusetts Institute of Technology, Cambridge, MA, USA 6. Universidade do Algarve, Faro, Portugal 7. Tuscan Archipelago National Park, Portoferraio-Isle of Elba, Elba, Italy |
| Abstract: | During the Costa Concordia emergency case, regional, subregional, and relocatable ocean models have been used together with the oil spill model, MEDSLIK-II, to provide ocean currents forecasts, possible oil spill scenarios, and drifters trajectories simulations. The models results together with the evaluation of their performances are presented in this paper. In particular, we focused this work on the implementation of the Interactive Relocatable Nested Ocean Model (IRENOM), based on the Harvard Ocean Prediction System (HOPS), for the Costa Concordia emergency and on its validation using drifters released in the area of the accident. It is shown that thanks to the capability of improving easily and quickly its configuration, the IRENOM results are of greater accuracy than the results achieved using regional or subregional model products. The model topography, and to the initialization procedures, and the horizontal resolution are the key model settings to be configured. Furthermore, the IRENOM currents and the MEDSLIK-II simulated trajectories showed to be sensitive to the spatial resolution of the meteorological fields used, providing higher prediction skills with higher resolution wind forcing. |
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