著者

Anawat SUPPASRI Panon LATCHAROTE Tanuspong POKAVANICH Khaled AL-SALEM Abdullah Al-Enezi Shinji TODA Fumihiko IMAMURA

出版者

公益社団法人 土木学会

雑誌

土木学会論文集B2(海岸工学) (ISSN:18842399)

巻号頁・発行日

vol.72, no.2, pp.I_1675-I_1680, 2016 (Released:2016-11-15)

参考文献数

10

被引用文献数

3

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The Arabian Gulf (also known as Persian Gulf) region is one of the most important oil producers to fuel the world and most of the population is located along the coasts. The present study aimed, for the first time, to carry out some preliminary assessment of the tsunami hazards in the Arabian Gulf region using numerical model. This study tsunamis generated by submarine earthquakes with the earthquake magnitude (Mw) of 8.3-9.0 along the Makran Subduction Zone (MSZ) and surface landslides with the volume of 0.5-1.0 km3 along Iranian coast inside the Arabian Gulf. TUNAMI model was applied in this study to predict the tsunami propagation. The model adopts the staggered leap-frog scheme to solve shallow water equations describing nonlinear long-wave theory. GEBCO 30 arc-second grid data was used as bathymetry and topography data for tsunami numerical simulation. This size of the computational grid was ascertained by many previous studies for its suitability in evaluating tsunami hazards in this region. For surface landslides, tsunami generation was simulated using a two-layer numerical model developed by solving nonlinear long-wave equations within two interfacing layers with appropriate kinematic and dynamic boundary conditions at seabed, interface, and water surface. In case of the earthquakes along MSZ, Mw 8.3 has low impact to locations inside the Arabian Gulf. Mw 8.6 has considerable impact mainly at the Gulf entrance meanwhile Mw 9.0 has high impact at the Gulf entrance and negligible impact for the whole Gulf region. In case of the surface landslides inside the Arabian Gulf, the impact is rather local but major near the sources. Detailed estimation of landslide volume, tsunami simulation using very fine topography and bathymetry data and coupling tide and tsunami wave modeling will be considered for the future works.

著者

鎌田 紘一 門廻 充侍 Anawat SUPPASRI 今村 文彦

出版者

公益社団法人 土木学会

雑誌

土木学会論文集B2(海岸工学) (ISSN:18842399)

巻号頁・発行日

vol.77, no.2, pp.I_1075-I_1080, 2021 (Released:2021-11-04)

参考文献数

19

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2011年3月11日に発生した東日本大震災により我が国は甚大な被害を受け,これまで様々な被害実態と低減の先行研究が行われてきた.津波災害時の新たな検討事項として,寒冷下における災害時の低体温症が議論されている.本研究では,同災害における低体温症の被害実態を検討するため,震災データを用いて宮城県の郵便番号地区を対象に,遺体発見場所に基づいた低体温症を検討し,以下の結果を得た.犠牲者の位置情報から,避難先の屋内で低体温症を発症した可能性が示された.低体温症犠牲者が確認された地区の浸水状況から,津波曝露で身体が濡れたことによる低体温症を発症した可能性が示された.新しい低体温症リスク想定として,津波で身体が濡れた人が避難先の屋内で低体温症を発症するケースを提示し,避難先における低体温症対策の重要性を示した.