Model depiction of the atmospheric flows of radioactive cesium emitted from the Fukushima Daiichi nuclear power station accident

Teruyuki Nakajima, Shota Misawa, Yu Morino, Haruo Tsuruta, Daisuke Goto, Junya Uchida, Toshihiko Takemura, Toshimasa Ohara, Yasuji Oura, Mitsuru Ebihara, Masaki Satoh

    Research output: Contribution to journalArticle

    18 Citations (Scopus)

    Abstract

    In this study, a new method is proposed for the depiction of the atmospheric transportation of the137Cs emitted from the Fukushima Daiichi Nuclear Power Station accident. This method employs a combination of the results of two aerosol model ensembles and the hourly observed atmospheric137Cs concentration at surface level during 14– 23 March 2011 at 90 sites in the suspended particulate matter monitoring network. The new method elucidates accurate transport routes and the distribution of the surface-level atmospheric137Cs relevant to eight plume events that were previously identified. The model ensemble simulates the main features of the observed distribution of surface-level atmospheric137Cs. However, significant differences were found in some cases, and this suggests the need to improve the modeling of the emission scenario, plume height, wet deposition process, and plume propagation in the Abukuma Mountain region. The contributions of these error sources differ in the early and dissipating phases of each event, depending on the meteorological conditions.

    Original languageEnglish
    Article number2
    JournalProgress in Earth and Planetary Science
    Volume4
    Issue number1
    DOIs
    Publication statusPublished - Jan 1 2017

    Fingerprint

    cesium
    nuclear power plant
    accident
    plume
    mountain region
    wet deposition
    suspended particulate matter
    aerosol
    modeling
    method
    distribution

    All Science Journal Classification (ASJC) codes

    • Earth and Planetary Sciences(all)

    Cite this

    Model depiction of the atmospheric flows of radioactive cesium emitted from the Fukushima Daiichi nuclear power station accident. / Nakajima, Teruyuki; Misawa, Shota; Morino, Yu; Tsuruta, Haruo; Goto, Daisuke; Uchida, Junya; Takemura, Toshihiko; Ohara, Toshimasa; Oura, Yasuji; Ebihara, Mitsuru; Satoh, Masaki.

    In: Progress in Earth and Planetary Science, Vol. 4, No. 1, 2, 01.01.2017.

    Research output: Contribution to journalArticle

    Nakajima, Teruyuki ; Misawa, Shota ; Morino, Yu ; Tsuruta, Haruo ; Goto, Daisuke ; Uchida, Junya ; Takemura, Toshihiko ; Ohara, Toshimasa ; Oura, Yasuji ; Ebihara, Mitsuru ; Satoh, Masaki. / Model depiction of the atmospheric flows of radioactive cesium emitted from the Fukushima Daiichi nuclear power station accident. In: Progress in Earth and Planetary Science. 2017 ; Vol. 4, No. 1.
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    AU - Morino, Yu

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    AU - Goto, Daisuke

    AU - Uchida, Junya

    AU - Takemura, Toshihiko

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