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http://hdl.handle.net/10773/13251
Title: | Coupling of a lagrangian particle tracking module to a numerical hydrodynamic model: simulation of pollution events inside an estuarine port area |
Author: | Vale, L. M. Dias, J. M. |
Keywords: | Numerical modelling Calibration Validation Lima estuary |
Issue Date: | 2011 |
Publisher: | Coastal Education and Research Foundation (CERF) |
Abstract: | The purpose of this work is to simulate the emission of pollutants in areas of the port located in the Lima estuary (Portugal), identifying areas of higher risk for pollu tion occurrences. A vertically integrated bi-dimensional hydrodynamic numerical model (SIMSYS2D) was implemented. The model was calibrated qualitatively by directly comparing simulated and observed sea surface elevation for several stations and time series. A quantitative assessment was completed, using RMAE, RM S and Skill methods for the longer time series and RMS and Skill for the shorter ones. A RMAE of 0.01 2 m and a RMS varying between 0.053 m and 0.147 m were obtained. The RMS value of 0.147 m corresponds to about 4% of the maximum tidal range for the considered time series and 6% of the mean local tidal range. The calculated values of Skill were within 0.992 and 0.998 range. The model was validated using an independent set of sea surface elevation data and u and v current components with similar results. The model was coupled to a particle tracking Lagrangian module for the analysis of dispersion of water masses (represented as passive particles) from continuous emission spots localized at critical locations to simulate pollution ev ents. The obtained results show the influence of tidal currents on the path followed and that a pollution inciden ce would have a more severe consequence if happening at the oil terminal. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/13251 |
ISSN: | 0749-0208 |
Publisher Version: | http://www.jcronline.org/page/special_publications |
Appears in Collections: | CESAM - Artigos DFis - Artigos Ria de Aveiro - Artigos |
Files in This Item:
File | Description | Size | Format | |
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coupling of a lagrangian particle tracking module.pdf | 750.52 kB | Adobe PDF |
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