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Nocturnal drainages which flow into the Osaka Plain and their usage as a countermeasure for nocturnal heat-island phenomena

Research Project

Project/Area Number 24560664
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Civil and environmental engineering
Research InstitutionOsaka University

Principal Investigator

TAMAI Masahiro  大阪大学, 工学(系)研究科(研究院), 准教授 (70197557)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Keywords都市ヒートアイランド / 冷気流 / 山風 / 都市大気環境 / ヒートアイランド現象 / 密度流 / 現地実測 / 数値計算 / 大気環境 / ヒートアイランド
Outline of Final Research Achievements

The Osaka Plain faces with the Hokusetsu and the Rokko Mounts on the north, with the Ikoma Mounts on the east and with the Izumi Mounts on the south. Mountain winds are supposed to occur on slopes of the mounts and flow into the plain in nighttime. The purpose of the study is to examine whether the mountain winds can be used for a countermeasure for nocturnal heat-island phenomena in the Osaka Plain.
The results indicate that the mountain winds decrease nocturnal air temperature in the foots of the mounts by a few degree and that the winds have velocity profiles quite similar to those of gravity density currents which flow on inclined planes and have vertical thicknesses of several hundred meters and horizontal velocities of several meter per second.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (9 results)

All 2014 2013 2012

All Journal Article (3 results) (of which Peer Reviewed: 2 results) Presentation (6 results)

  • [Journal Article] 地上風向の日変動パターンを用いた夜間の熱中症危険度指標の考察2014

    • Author(s)
      玉井昌宏,澤井健志
    • Journal Title

      土木学会論文集G(環境)

      Volume: Vo.70, No.7 Pages: 381-388

    • NAID

      130004962626

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] パイロットバルーンを用いた大阪平野北部冷気流の観測2013

    • Author(s)
      玉井昌宏,鳥山仁
    • Journal Title

      土木学会論文集G(環境)

      Volume: Vol.69,No.7 Pages: 205-213

    • NAID

      130004962539

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] 大阪平野東部冷気流の発生条件と北部冷気流との関連性2012

    • Author(s)
      玉井昌宏,太田晋一
    • Journal Title

      土木学会論文集G(環境)

      Volume: Vol.68

    • NAID

      130004962444

    • Related Report
      2012 Research-status Report
  • [Presentation] 大阪平野北部冷気流の風速分布の観測2014

    • Author(s)
      玉井昌宏
    • Organizer
      日本ヒートアイランド学会
    • Place of Presentation
      佐賀大学
    • Year and Date
      2014-07-26 – 2014-07-27
    • Related Report
      2014 Annual Research Report
  • [Presentation] 大阪平野北部地域に流入する冷気流の発生条件と夜間ヒートアイランドとの関係2013

    • Author(s)
      玉井昌宏
    • Organizer
      日本ヒートアイランド学会第8回全国大会
    • Place of Presentation
      信州大学
    • Related Report
      2013 Research-status Report
  • [Presentation] ターゲットシナリオとしての気象シナリオ日の利用法2012

    • Author(s)
      日比俊輔,玉井昌宏
    • Organizer
      平成24年度土木学会関西支部年次学術講演会
    • Place of Presentation
      神戸市立工業高等専門学校
    • Related Report
      2012 Research-status Report
  • [Presentation] 瞬間的に排出された汚染物質の気象シナリオ日を用いた長期曝露評価2012

    • Author(s)
      澤井健志,日比俊輔,玉井昌宏
    • Organizer
      平成24年度木学会関西支部年次学術講演会
    • Place of Presentation
      神戸市立工業高等専門学校
    • Related Report
      2012 Research-status Report
  • [Presentation] 瞬間的に排出された汚染物質の気象シナリオ日を用いた長期曝露評価2012

    • Author(s)
      澤井健志,玉井昌宏,日比俊輔
    • Organizer
      土木学会第67回年次学術講演会
    • Place of Presentation
      名古屋大学
    • Related Report
      2012 Research-status Report
  • [Presentation] ヒートアイランド対策におけるターゲットシナリオ2012

    • Author(s)
      日比俊輔,玉井昌宏
    • Organizer
      土木学会第67回年次学術講演会
    • Place of Presentation
      名古屋大学
    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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