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Development of volcanic gas risk evaluation method considering local winds

Research Project

Project/Area Number 16K14330
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Civil and environmental engineering
Research InstitutionOsaka Sangyo University (2017-2018)
Osaka University (2016)

Principal Investigator

Tamai Masahiro  大阪産業大学, 工学部, 教授 (70197557)

Co-Investigator(Kenkyū-buntansha) 辻本 剛三  熊本大学, 大学院先端科学研究部(工), 教授 (10155377)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords大気汚染 / リスク評価 / 火山ガス / 阿蘇山 / 二酸化硫黄 / 現地観測 / 数値計算 / 大気環境 / 気象観測 / 火山 / 気象学
Outline of Final Research Achievements

The final goal of this research is to develop a simple risk evaluation method for SO2 erupted from a Mt. Aso, Japan. As the first step for that, relationships between meteorological conditions and SO2 behaviors were examined. Data analyses for SO2 high concentration days in Kumamoto Plain indicated that there are some typical meteorological patterns which lead to the SO2 high concentration events. Meteorological observatons using a pilot balloon system were carried out in the region on the west of the Mt. Aso somma, caught such local wind strucutures as sea and land breeze, but couldn't clarify any transport mechanisms of SO2. Numerical simulations were carried out using the HOTMAC and RAPTAD to examine the transport mechanism of SO2. For the pattern that relatively strong east wind continuously blows, the simulation reproduced SO2 high concentration condition which occured in Kumamoto Plain.

Academic Significance and Societal Importance of the Research Achievements

1)大気汚染物質のリスク評価については,殆ど研究されていない.これまで研究例の少なかった火山ガスを取り上げて,そのリスク評価について積極的に取り上げた.
2)大気汚染常時監視などで観測された熊本平野におけるSO2の高濃度が,阿蘇山起源の火山ガスであることを初めて明らかにした.
3)この熊本平野におけるSO2高濃度事象が,いくつかの気象パターンによって生じることを明らかにした.このことにより,SO2のリスク評価法の開発への道筋ができたと考える.

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (5 results)

All 2018 2017 2016

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (1 results)

  • [Journal Article] SAND COLOR CHARACTERISTICS OF MAINLAND BEACHES IN KAGOSHIMA PREFECTURE AND THEIR RELATIONSHIPS WITH THE SURROUNDING GEOLOGICAL FEATURES2018

    • Author(s)
      TAMAI Masahiho、TSUJIMOTO Gozo
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)

      Volume: 74 Issue: 2 Pages: I_808-I_813

    • DOI

      10.2208/jscejoe.74.I_808

    • NAID

      130007482417

    • ISSN
      2185-4688
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] SEDIMENT DYNAMICS BEHAVIOR AND BEACH PROFILE TYPES BASED ON SEDIMENT PROPERTIES2018

    • Author(s)
      Gozo Tsujimoto, Masahiro Tamai, Yasuhide Takano and Ryuta Yamaguchi
    • Journal Title

      Coastal Engineering Proceedings

      Volume: 36

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 阿蘇山起源SO2の熊本平野における濃度変動と気象条件との関係2017

    • Author(s)
      玉井昌宏
    • Journal Title

      土木学会論文集G(環境)

      Volume: Vol.73,No.7

    • NAID

      130006602950

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] 阿蘇山起源のSO2の高濃度時の気象状況2016

    • Author(s)
      玉井昌宏,國枝桂子
    • Journal Title

      土木学会論文集G(環境)

      Volume: 72

    • NAID

      130005530550

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] 夜間の熱中症危険度指標と地上風向の日変動パータンとの関係2016

    • Author(s)
      玉井昌宏
    • Organizer
      日本ヒートアイランド学会 第11回全国大会
    • Place of Presentation
      広島工業大学
    • Year and Date
      2016-07-09
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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