A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Reconstructing tsunami run-up from the characteristics of tsunami deposits on the Thai Andaman Coast
AbstractTsunamis can leave deposits on the land surface they inundate. The characteristics of tsunami deposits can be used to calculate tsunami run-up height and velocity. This paper presents a reconstruction of tsunami run-up from tsunami deposit characteristics in a simple mathematical model. The model is modified and applied to reconstruct tsunami run-ups at Ao Kheuy beach and Khuk Khak beach, Phangnga province, Thailand. The input parameters are grain-size and maximum run-up distance of the sediment. The reconstructed run-up heights are 4.16–4.91m at Ao Kheuy beach and 5.43–9.46m at Khuk Khak beach. The estimated run-up velocities (maximum velocity) at the still water level are 12.78–19.21m/s. In the area located 70–140m inland to the end of run-up inundation, estimated mean run-up velocities decrease from approximately 1.93m/s to 0m/s. Reasonably good agreements are found between reconstructed and observed run-up heights. The tsunami run-up height and velocity can be used for risk assessment and coastal development programs in the tsunami affected area. The results show that the area from 0 to 140m inland was flooded by high velocity run-ups and those run-up energies were dissipated mainly in this area. The area should be designated as either an area where settlement is not permitted or an area where effective protection is provided, for example with flood barriers or forest.
Reconstructing tsunami run-up from the characteristics of tsunami deposits on the Thai Andaman Coast
AbstractTsunamis can leave deposits on the land surface they inundate. The characteristics of tsunami deposits can be used to calculate tsunami run-up height and velocity. This paper presents a reconstruction of tsunami run-up from tsunami deposit characteristics in a simple mathematical model. The model is modified and applied to reconstruct tsunami run-ups at Ao Kheuy beach and Khuk Khak beach, Phangnga province, Thailand. The input parameters are grain-size and maximum run-up distance of the sediment. The reconstructed run-up heights are 4.16–4.91m at Ao Kheuy beach and 5.43–9.46m at Khuk Khak beach. The estimated run-up velocities (maximum velocity) at the still water level are 12.78–19.21m/s. In the area located 70–140m inland to the end of run-up inundation, estimated mean run-up velocities decrease from approximately 1.93m/s to 0m/s. Reasonably good agreements are found between reconstructed and observed run-up heights. The tsunami run-up height and velocity can be used for risk assessment and coastal development programs in the tsunami affected area. The results show that the area from 0 to 140m inland was flooded by high velocity run-ups and those run-up energies were dissipated mainly in this area. The area should be designated as either an area where settlement is not permitted or an area where effective protection is provided, for example with flood barriers or forest.
Reconstructing tsunami run-up from the characteristics of tsunami deposits on the Thai Andaman Coast
Srisutam, Chanchai (author) / Wagner, Jean-Frank (author)
Coastal Engineering ; 57 ; 493-499
2009-12-08
7 pages
Article (Journal)
Electronic Resource
English
Reconstructing tsunami run-up from the characteristics of tsunami deposits on the Thai Andaman Coast
| Online Contents | 2010
Reconstructing tsunami run-up from the characteristics of tsunami deposits on the Thai Andaman Coast
| British Library Online Contents | 2010
| British Library Online Contents | 2012