Field observation and numerical simulation of past and future storm surges in the Bay of Bengal

case study of cyclone Nargis

Khandker Masuma Tasnim, Tomoya Shibayama, Miguel Esteban, Hiroshi Takagi, Koichiro Ohira, Ryota Nakamura

    Research output: Contribution to journalArticle

    23 Citations (Scopus)

    Abstract

    Storm surges are one of the most important risks to coastal communities around the Bay of Bengal, and it is feared that the threat they pose will increase with climate change in the future. To understand the threats that these events pose, a summary of the field surveys performed in Yangon River Basin after cyclone Nargis in Myanmar in 2008 is presented. Though due to government restrictions survey activities were limited to the area near Yangon city, it was found out that the tide due to the storm surge was probably between 3 and 4 m high and travelled around 50 km upstream of the river mouth of Yangon River. Cyclone Nargis could be accurately reproduced using a numerical model that integrated weather, wave, coastal ocean models, and tide prediction system. The application of such an integrated model is relatively new for storm surge simulation and has never been used for the Bay of Bengal storms. The model was then used to also simulate future cyclones over the Bay of Bengal considering a future climate change scenario.

    Original languageEnglish
    Pages (from-to)1619-1647
    Number of pages29
    JournalNatural Hazards
    Volume75
    Issue number2
    DOIs
    Publication statusPublished - 2015 Dec 16

    Fingerprint

    storm surge
    cyclone
    tide
    simulation
    climate change
    river
    field survey
    river basin
    weather
    ocean
    prediction

    Keywords

    • Numerical model
    • Prediction
    • Storm surge
    • Tropical cyclone

    ASJC Scopus subject areas

    • Water Science and Technology
    • Atmospheric Science
    • Earth and Planetary Sciences (miscellaneous)

    Cite this

    Field observation and numerical simulation of past and future storm surges in the Bay of Bengal : case study of cyclone Nargis. / Tasnim, Khandker Masuma; Shibayama, Tomoya; Esteban, Miguel; Takagi, Hiroshi; Ohira, Koichiro; Nakamura, Ryota.

    In: Natural Hazards, Vol. 75, No. 2, 16.12.2015, p. 1619-1647.

    Research output: Contribution to journalArticle

    Tasnim, Khandker Masuma ; Shibayama, Tomoya ; Esteban, Miguel ; Takagi, Hiroshi ; Ohira, Koichiro ; Nakamura, Ryota. / Field observation and numerical simulation of past and future storm surges in the Bay of Bengal : case study of cyclone Nargis. In: Natural Hazards. 2015 ; Vol. 75, No. 2. pp. 1619-1647.
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