00000nam 2200000zi 4500 9.930233 CaOODSP 20231128095308 m o d f cr mn||||||||| 231110t20232023bccab ob f000 0 eng d 9780660687858 CaOODSP eng rda CaOODSP eng eng fre n-cn-bc n-us-wa n-us-ak pn----- Fs97-18/367E-PDF Fine, Isaac, author. Numerical simulation of an Alaska 1964-type tsunami with application to Boundary Bay in the southern Strait of Georgia / Isaac Fine, Richard Thomson, and Nicky Hastings. Sidney, BC : Fisheries and Oceans Canada, Institute of Ocean Sciences, 2023. ©2023 1 online resource (v, 32 pages) : colour illustrations, colour maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian technical report of hydrography and ocean sciences, 1488-5417 ; 367 Includes bibliographical references (pages 30-32). "A high-resolution, nested-grid tsunami model has been used to simulate the distribution of tsunami waves and wave-induced currents that will be generated in Boundary Bay in the event of a magnitude Mw 9.0, 1964-type Alaska earthquake. The model uses an advanced tsunami source distribution and high-resolution bathymetric and topographic data in Boundary Bay. We validated the model by comparing the simulated tsunami waves with those observed during the 1964 event at the Point Atkinson tide gauge. The modelled record closely fits the observed wave forms and amplitudes. According to the model, the tsunami in Boundary Bay will reach 0.45 m above the tidal level at the time the waves arrive, with the first wave being the highest. Tsunami waves along the Semiahmoo coast will be up to 0.35 m. The distribution of tsunami wave amplitudes within Boundary Bay will be non-uniform, with highest waves occurring toward the head of the bay. Moderate strength currents will be induced at the entrance to Drayton Harbor (up to 1.5 m/s) and at the mouth of Campbell River (up to 0.5 m/s). At other locations, wave-induced current will not exceed 0.3 m/s. Even allowing for a 50% safety factor, the risk of flooding in Boundary Bay by an Alaska 1964-type tsunami, is considered to be low"--Abstract, page iv. Includes abstracts in English and French. Tsunamis Boundary Bay (B.C. and Wash.) Mathematical models. Tsunamis Risk assessment Boundary Bay (B.C. and Wash.) Earthquakes Alaska. Tsunamis Boundary, Baie (C.-B. et Wash.) Modèles mathématiques. Tsunamis Évaluation du risque Boundary, Baie (C.-B. et Wash.) Tremblements de terre Alaska. Canada. Department of Fisheries and Oceans, issuing body. Institute of Ocean Sciences, Patricia Bay, issuing body. Numerical simulation of an Alaska 1964-type tsunami with application to Boundary Bay in the southern Strait of Georgia. (CaOODSP)9.930234 Canadian technical report of hydrography and ocean sciences ; 367. (CaOODSP)9.504781 PDF 2.10 MB https://publications.gc.ca/collections/collection_2023/mpo-dfo/Fs97-18-367-eng.pdf