Unstructured Model Investigation of 2004 Indian Ocean Tsunami Inundation in Banda Aceh, Indonesia

作者：Sasaki J^*; Komatsu Y; Matsumaru R; Wiyono R U A

来源：Journal of Coastal Research, 2011, 941-945.

• FVCOM
• Numerical simulation
• Disaster prevention

Sasaki, J., Komatsu, Y., Matsumaru, R. and Wiyono, R.U.A., 2011. Unstructured model investigation of 2004 Indian Ocean Tsunami inundation in Banda Aceh, Indonesia. Journal of Coastal Research, SI-64 (Proceedings of the 11th International Coastal Symposium), 941 - 945. Szczecin, Poland, ISSN 0749-0208
An unstructured-grid, finite-volume, 3D primitive equation coastal circulation model, FVCOM, was first slightly modified to apply to tsunami propagation and inundation problems in terms of the treatment of initial conditions. The model was applied to 2004 Indian Ocean Tsunami, focusing on propagation in Indian Ocean and inundation in Banda Aceh, Indonesia. Unstructured mesh was generated using fine Geographical Information System (GIS) datasets, covering Indian Ocean and inundation areas in Banda Aceh with a wide range of grid size from 50 km in the ocean to 5 m in Banda Aceh downtown on one grid system. The computed results are consistent with measured tidal gauges at Krabi and Kuraburi, Thailand, as well as at Ulee Lheue, Banda Aceh. Accuracy in reproducing inundation areas is highly enhanced after resolving fine structures of roads and buildings in downtown of Banda Aceh. Considering the recent progress in high resolution GIS datasets and computer resources, application of FVCOM will become an effective tool to consider management of local disaster prevention in a straightforward and easier manner.

• 出版日期2011