Tsunami resonance and spatial pattern of natural oscillation modes with multiple resonators

Resonancia del tsunami y patrón espacial de modos de oscilación natural con múltiples resonadores

dc.creatorAránguiz Muñoz, Rafael Enrique
dc.creatorCatalán, P. A.
dc.creatorCecioni, C.
dc.creatorBellotti, G.
dc.creatorHenríquez, P.
dc.creatorGonzález, J.
dc.date2020-05-21T13:00:06Z
dc.date2020-05-21T13:00:06Z
dc.date2019-11
dc.date.accessioned2022-10-18T12:06:47Z
dc.date.available2022-10-18T12:06:47Z
dc.identifierJournal of Geophysical Research. Oceans. Nov2019, Vol. 124 Issue 11, p7797-7816
dc.identifier2169-9275
dc.identifierhttp://repositoriodigital.ucsc.cl/handle/25022009/1589
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4441228
dc.descriptionTsunami resonance and coupled oscillation of shelf and bays modes has been reported to beimportant in tsunami wave amplification. The main objective of this work is to study the spatial pattern ofnatural oscillation modes and to analyze the influence of several resonators on the coast of the centralChile, which has a complex morphology with several bays, submarine canyons, and a wide continentalshelf. First, natural oscillation modes were computed by means of modal analysis of local and regionaldomains. Second, a dense network of tide gauges and pressure sensors was analyzed to obtain backgroundspectra inside bays. Third, tsunami spectra were computed from both tsunami records and numericalsimulations. The results show that the use of modal analysis and background and tsunami spectra iseffective for identifying natural oscillation modes. In addition, a dense network of tide gauges is useful tovalidate the spatial pattern of these natural modes. It was observed that larger resonators and the shelf areimportant in coupling oscillation with local bays, such that large amplification can be observed. Finally,this analysis allowed the diverse effects of 2010 and 2011 tsunamis in the bays of central Chile to beexplained, making it possible to better address tsunami mitigation measures and the preparedness ofcoastal communities.
dc.languageen
dc.publisherJournal of Geophysical Research. Oceans
dc.sourcehttps://doi-org.dti.sibucsc.cl/10.1029/2019JC015206
dc.subjectTsunamis
dc.subjectContinental shelf
dc.subjectNatural disasters
dc.subjectResonators
dc.subjectModal analysis
dc.titleTsunami resonance and spatial pattern of natural oscillation modes with multiple resonators
dc.titleResonancia del tsunami y patrón espacial de modos de oscilación natural con múltiples resonadores
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución