کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1721286 1014480 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reconstructing tsunami run-up from the characteristics of tsunami deposits on the Thai Andaman Coast
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی دریا (اقیانوس)
پیش نمایش صفحه اول مقاله
Reconstructing tsunami run-up from the characteristics of tsunami deposits on the Thai Andaman Coast
چکیده انگلیسی
Tsunamis 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 4.16-4.91 m at Ao Kheuy beach and 5.43-9.46 m at Khuk Khak beach. The estimated run-up velocities (maximum velocity) at the still water level are 12.78-19.21 m/s. In the area located 70-140 m inland to the end of run-up inundation, estimated mean run-up velocities decrease from approximately 1.93 m/s to 0 m/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 140 m 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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Coastal Engineering - Volume 57, Issue 5, May 2010, Pages 493-499
نویسندگان
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