Rapid Assessment of Tsunami Offshore Propagation and Inundation with D-FLOW Flexible Mesh and SFINCS for the 2011 Tōhoku Tsunami in Japan
Autor: | Maarten van Ormondt, Gundula Winter, Tim Leijnse, Björn R. Röbke, Joana van Nieuwkoop, Reimer de Graaff |
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Přispěvatelé: | Water and Climate Risk |
Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
010504 meteorology & atmospheric sciences
Naval architecture. Shipbuilding. Marine engineering Flow (psychology) SFINCS VM1-989 Ocean Engineering GC1-1581 coastal hazards Oceanography 010502 geochemistry & geophysics Megathrust earthquake 01 natural sciences hydrodynamic simulations Japan Tōhoku tsunami tsunami propagation SDG 14 - Life Below Water D-FLOW Flexible Mesh 0105 earth and related environmental sciences Water Science and Technology Civil and Structural Engineering tsunami inundation Coastal hazards Tsunami propagation Sendai Bay Time efficient Rapid assessment Offshore water Delft3D Submarine pipeline Geology Seismology |
Zdroj: | Journal of Marine Science and Engineering Volume 9 Issue 5 Journal of Marine Science and Engineering, 9(5):453. MDPI AG Leijnse, T 2021, ' Rapid Assessment of Tsunami Offshore Propagation and Inundation with D-FLOW Flexible Mesh and SFINCS for the 2011 Tōhoku Tsunami in Japan ', Journal of Marine Science and Engineering, vol. 9, no. 5, 453 . https://doi.org/10.3390/jmse9050453 Journal of Marine Science and Engineering, Vol 9, Iss 453, p 453 (2021) |
ISSN: | 2077-1312 |
DOI: | 10.3390/jmse9050453 |
Popis: | This study demonstrates the skills of D-FLOW Flexible Mesh (FM) and SFINCS (Super-Fast INundation of CoastS) in combination with the Delft Dashboard Tsunami Toolbox to numerically simulate tsunami offshore propagation and inundation based on the example of the 2011 Tōhoku tsunami in Japan. Caused by a megathrust earthquake, this is one of the most severe tsunami events in recent history, resulting in vast inundation and devastation of the Japanese coast. The comparison of the simulated with the measured offshore water levels at four DART buoys located in the north-western Pacific Ocean shows that especially the FM but also the SFINCS model accurately reproduce the observed tsunami propagation. The inundation observed at the Sendai coast is well reproduced by both models. All in all, the model outcomes are consistent with the findings gained in earlier simulation studies. Depending on the specific needs of future tsunami simulations, different possibilities for the application of both models are conceivable: (i) the exclusive use of FM to achieve high accuracy of the tsunami offshore propagation, with the option to use an all-in-one model domain (no nesting required) and to add tsunami sediment dynamics, (ii) the combined use of FM for the accurate simulation of the tsunami propagation and of SFINCS for the accurate and time efficient simulation of the onshore inundation and (iii) the exclusive use of SFINCS to get a reliable picture of the tsunami propagation and accurate results for the onshore inundation within seconds of computational time. This manuscript demonstrates the suitability of FM and SFINCS for the rapid and reliable assessment of tsunami propagation and inundation and discusses use cases of the three model combinations that form an important base for tsunami risk management. |
Databáze: | OpenAIRE |
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