دورية أكاديمية
La Palma landslide tsunami: calibrated wave source and assessment of impact on French territories
| العنوان: | La Palma landslide tsunami: calibrated wave source and assessment of impact on French territories |
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| المؤلفون: | S. Abadie, A. Paris, R. Ata, S. Le Roy, G. Arnaud, A. Poupardin, L. Clous, P. Heinrich, J. Harris, R. Pedreros, Y. Krien |
| المصدر: | Natural Hazards and Earth System Sciences, Vol 20, Pp 3019-3038 (2020) |
| بيانات النشر: | Copernicus Publications, 2020. |
| سنة النشر: | 2020 |
| المجموعة: | LCC:Environmental technology. Sanitary engineering LCC:Geography. Anthropology. Recreation LCC:Environmental sciences LCC:Geology |
| مصطلحات موضوعية: | Environmental technology. Sanitary engineering, TD1-1066, Geography. Anthropology. Recreation, Environmental sciences, GE1-350, Geology, QE1-996.5 |
| الوصف: | In this paper, we present new results on the potential La Palma collapse event, previously described and studied in Abadie et al. (2012). Three scenarios (i.e., slide volumes of 20, 40 and 80 km3) are considered, modeling the initiation of the slide to the water generation using THETIS, a 3D Navier–Stokes model. The slide is a Newtonian fluid whose viscosity is adjusted to approximate a granular behavior. After 5 min of propagation with THETIS, the generated water wave is transferred into FUNWAVE-TVD (Total Variation Diminishing version of FUNWAVE) to build a wave source suitable for propagation models. The results obtained for all the volumes after 15 min of Boussinesq model simulation are made available through a public repository. The signal is then propagated with two different Boussinesq models: FUNWAVE-TVD and Calypso. An overall good agreement is found between the two models, which secures the validity of the results. Finally, a detailed impact study is carried out on La Guadeloupe using a refined shallow water model, SCHISM, initiated with the FUNWAVE-TVD solution in the nearshore area. Although the slide modeling approach applied in this study seemingly leads to smaller waves compared to former works, the wave impact is still very significant for the maximum slide volume considered on surrounding islands and coasts, as well as on the most exposed remote coasts such as Guadeloupe. In Europe, the wave impact is significant (for specific areas in Spain and Portugal) to moderate (Atlantic French coast). |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1561-8633 1684-9981 27857859 |
| Relation: | https://nhess.copernicus.org/articles/20/3019/2020/nhess-20-3019-2020.pdf; https://doaj.org/toc/1561-8633; https://doaj.org/toc/1684-9981 |
| DOI: | 10.5194/nhess-20-3019-2020 |
| URL الوصول: | https://doaj.org/article/f453c677e0a94420a98a278578592d90 |
| رقم الأكسشن: | edsdoj.f453c677e0a94420a98a278578592d90 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 15618633 16849981 27857859 |
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| DOI: | 10.5194/nhess-20-3019-2020 |