Tsunami resonance in the bay of Concepcion, Chile

Rafael Aránguiz, Mauricio Villagrán, Miguel Esteban, Tomoya Shibayama

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    Natural oscillation modes of the Bay of Concepcion are determined by means of Empirical Orthogonal Functions. Simulations of the 2010 and 1960 tsunamis were performed using 4 nested grids of 120, 30, 6 and 1″ arc resolution with the NEOWAVE model. In addition, a spectral analysis of tsunami waveforms at both the continental shelf and inside the Bay of Concepcion was performed, and the results were contrasted with natural oscillation periods. The results showed that the natural oscillation period of the first, second and third modes of the Bay were found to be 95, 37 and 32 min. It was found that large tsunami amplifications at the southern shore of the Bay of Concepcion were due to tsunami resonance and coupling between the shelf resonance and bay oscillations. Large inundations heights during 2010 tsunami were caused by the tsunami exciting the fundamental oscillation mode of the Bay. The relative low inundation during the 1960 tsunami was due to the tsunami exciting the higher frequency.

    Original languageEnglish
    Title of host publicationProceedings of the Coastal Engineering Conference
    PublisherAmerican Society of Civil Engineers (ASCE)
    Volume2014-January
    ISBN (Print)9780989661126
    Publication statusPublished - 2014
    Event34th International Conference on Coastal Engineering, ICCE 2014 - Seoul, Korea, Republic of
    Duration: 2014 Jun 152014 Jun 20

    Other

    Other34th International Conference on Coastal Engineering, ICCE 2014
    CountryKorea, Republic of
    CitySeoul
    Period14/6/1514/6/20

    Fingerprint

    Tsunamis
    tsunami
    oscillation
    Orthogonal functions
    Spectrum analysis
    spectral analysis
    Amplification
    continental shelf
    amplification

    Keywords

    • 1960 tsunami
    • 2010 tsunami
    • Bay of Concepción
    • Fundamental mode
    • Shelf resonance
    • Tsunami resonance

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Ocean Engineering
    • Oceanography

    Cite this

    Aránguiz, R., Villagrán, M., Esteban, M., & Shibayama, T. (2014). Tsunami resonance in the bay of Concepcion, Chile. In Proceedings of the Coastal Engineering Conference (Vol. 2014-January). American Society of Civil Engineers (ASCE).

    Tsunami resonance in the bay of Concepcion, Chile. / Aránguiz, Rafael; Villagrán, Mauricio; Esteban, Miguel; Shibayama, Tomoya.

    Proceedings of the Coastal Engineering Conference. Vol. 2014-January American Society of Civil Engineers (ASCE), 2014.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Aránguiz, R, Villagrán, M, Esteban, M & Shibayama, T 2014, Tsunami resonance in the bay of Concepcion, Chile. in Proceedings of the Coastal Engineering Conference. vol. 2014-January, American Society of Civil Engineers (ASCE), 34th International Conference on Coastal Engineering, ICCE 2014, Seoul, Korea, Republic of, 14/6/15.
    Aránguiz R, Villagrán M, Esteban M, Shibayama T. Tsunami resonance in the bay of Concepcion, Chile. In Proceedings of the Coastal Engineering Conference. Vol. 2014-January. American Society of Civil Engineers (ASCE). 2014
    Aránguiz, Rafael ; Villagrán, Mauricio ; Esteban, Miguel ; Shibayama, Tomoya. / Tsunami resonance in the bay of Concepcion, Chile. Proceedings of the Coastal Engineering Conference. Vol. 2014-January American Society of Civil Engineers (ASCE), 2014.
    @inproceedings{163da56720ad48848c4031230555ad2c,
    title = "Tsunami resonance in the bay of Concepcion, Chile",
    abstract = "Natural oscillation modes of the Bay of Concepcion are determined by means of Empirical Orthogonal Functions. Simulations of the 2010 and 1960 tsunamis were performed using 4 nested grids of 120, 30, 6 and 1″ arc resolution with the NEOWAVE model. In addition, a spectral analysis of tsunami waveforms at both the continental shelf and inside the Bay of Concepcion was performed, and the results were contrasted with natural oscillation periods. The results showed that the natural oscillation period of the first, second and third modes of the Bay were found to be 95, 37 and 32 min. It was found that large tsunami amplifications at the southern shore of the Bay of Concepcion were due to tsunami resonance and coupling between the shelf resonance and bay oscillations. Large inundations heights during 2010 tsunami were caused by the tsunami exciting the fundamental oscillation mode of the Bay. The relative low inundation during the 1960 tsunami was due to the tsunami exciting the higher frequency.",
    keywords = "1960 tsunami, 2010 tsunami, Bay of Concepci{\'o}n, Fundamental mode, Shelf resonance, Tsunami resonance",
    author = "Rafael Ar{\'a}nguiz and Mauricio Villagr{\'a}n and Miguel Esteban and Tomoya Shibayama",
    year = "2014",
    language = "English",
    isbn = "9780989661126",
    volume = "2014-January",
    booktitle = "Proceedings of the Coastal Engineering Conference",
    publisher = "American Society of Civil Engineers (ASCE)",

    }

    TY - GEN

    T1 - Tsunami resonance in the bay of Concepcion, Chile

    AU - Aránguiz, Rafael

    AU - Villagrán, Mauricio

    AU - Esteban, Miguel

    AU - Shibayama, Tomoya

    PY - 2014

    Y1 - 2014

    N2 - Natural oscillation modes of the Bay of Concepcion are determined by means of Empirical Orthogonal Functions. Simulations of the 2010 and 1960 tsunamis were performed using 4 nested grids of 120, 30, 6 and 1″ arc resolution with the NEOWAVE model. In addition, a spectral analysis of tsunami waveforms at both the continental shelf and inside the Bay of Concepcion was performed, and the results were contrasted with natural oscillation periods. The results showed that the natural oscillation period of the first, second and third modes of the Bay were found to be 95, 37 and 32 min. It was found that large tsunami amplifications at the southern shore of the Bay of Concepcion were due to tsunami resonance and coupling between the shelf resonance and bay oscillations. Large inundations heights during 2010 tsunami were caused by the tsunami exciting the fundamental oscillation mode of the Bay. The relative low inundation during the 1960 tsunami was due to the tsunami exciting the higher frequency.

    AB - Natural oscillation modes of the Bay of Concepcion are determined by means of Empirical Orthogonal Functions. Simulations of the 2010 and 1960 tsunamis were performed using 4 nested grids of 120, 30, 6 and 1″ arc resolution with the NEOWAVE model. In addition, a spectral analysis of tsunami waveforms at both the continental shelf and inside the Bay of Concepcion was performed, and the results were contrasted with natural oscillation periods. The results showed that the natural oscillation period of the first, second and third modes of the Bay were found to be 95, 37 and 32 min. It was found that large tsunami amplifications at the southern shore of the Bay of Concepcion were due to tsunami resonance and coupling between the shelf resonance and bay oscillations. Large inundations heights during 2010 tsunami were caused by the tsunami exciting the fundamental oscillation mode of the Bay. The relative low inundation during the 1960 tsunami was due to the tsunami exciting the higher frequency.

    KW - 1960 tsunami

    KW - 2010 tsunami

    KW - Bay of Concepción

    KW - Fundamental mode

    KW - Shelf resonance

    KW - Tsunami resonance

    UR - http://www.scopus.com/inward/record.url?scp=84957654883&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84957654883&partnerID=8YFLogxK

    M3 - Conference contribution

    AN - SCOPUS:84957654883

    SN - 9780989661126

    VL - 2014-January

    BT - Proceedings of the Coastal Engineering Conference

    PB - American Society of Civil Engineers (ASCE)

    ER -