#TITLE_ALTERNATIVE#
In oil spill contingency planning, it is necessary to have quickly information of tidal current condition for simulating oil spreading. To obtain the information of tidal current condition, a hydrodynamic model is commonly used. However the application of hydrodynamic model is sometimes time consumi...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/11852 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | In oil spill contingency planning, it is necessary to have quickly information of tidal current condition for simulating oil spreading. To obtain the information of tidal current condition, a hydrodynamic model is commonly used. However the application of hydrodynamic model is sometimes time consuming. In order to know quickly tidal current condition for oil spill modeling, Fadli (2007) introduced a procedure to predict tidal currents using harmonic analysis of tidal current components. This study aims to evaluate and to validate the Fadli's procedure using observation data at the Alas Strait. To obtain harmonic components of tidal currents at the Alas Straits, tidal current simulation was carried out using MIKE hydrodynamic model and admiralty harmonic analysis was also applied. Further, predicted tidal currents from their harmonic component are validated with observation. Validation result shows that root mean square error between predicted currents and observation is 0.24 m/s (north-south velocity component) and 0.75 m/s (westeast velocity component). Furthermore hydrodynamic simulation results were used for trajectory simulations. Although tidal currents resulted from hydrodynamic model and harmonic prediction are similar, particle trajectories because both of the currents give different patterns (averaged discrepancy = 591.58 meter after 24 hours trajectory simulation). |
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