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Liquid water movement in a snowpack under the heavy rainfall event

Research Project

Project/Area Number 26350482
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Natural disaster / Disaster prevention science
Research InstitutionHokkaido University

Principal Investigator

ISHII Yoshiyuki  北海道大学, 低温科学研究所, 助教 (40222955)

Co-Investigator(Kenkyū-buntansha) 平島 寛行  国立研究開発法人防災科学技術研究所, 雪氷防災研究センター, 主任研究員 (00425513)
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords春の大雨 / 融雪洪水 / 積雪内浸透水 / 積雪水分移動モデル / 積雪内浸透
Outline of Final Research Achievements

To replicate rain-on-snow events, artificial rain sprinkling experiments were performed on natural snowpack in Moshiri, northern Hokkaido, Japan. The results showed that a remarkable outflow from the snowpack bottom was observed in some cases of the experiments, and that there were no outflow in other cases. These differences could be caused by the existence of snow layer boundary with large contrast in grain size. To make sure of this hypothesis, a multi-dimensional water transport model developed by Snow and Ice Research Center was used for the reproduction simulations of the experiment results. Simulation results showed that the existence of snow layer was important to delay the liquid water percolation at the boundary. However, it was more important that whether the outflow from the snowpack bottom occurred or not was strongly dependent on the development of preferential pathways in the deeper snow layers.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report

Research Products

(17 results)

All 2017 2016 2015 2014 Other

All Journal Article (4 results) (of which Acknowledgement Compliant: 1 results) Presentation (11 results) (of which Invited: 2 results) Remarks (2 results)

  • [Journal Article] Application of multi-dimensional water transport model to natural snow: reproduction simulation of water sprinkle experiment2016

    • Author(s)
      Hirashima, H., Ishii, Y. and Yamaguchi, S.
    • Journal Title

      Proceeding of the International Snow Science Workshop, Colorado

      Volume: - Pages: 690-694

    • Related Report
      2016 Annual Research Report
    • Acknowledgement Compliant
  • [Journal Article] 母子里における融雪期の模擬降雨散水実験2016

    • Author(s)
      石井吉之,中坪俊一,ほか6名
    • Journal Title

      北海道大学低温科学研究所技術部技術報告

      Volume: 22 Pages: 25-29

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Application of a multi-dimensional water transport model to reproduce the temporal change of runoff amount2014

    • Author(s)
      Hirashima, H., Yamaguchi, S., and Ishii, Y.
    • Journal Title

      Proceedings of the 2014 International Snow Science Workshop, Banff, Canada

      Volume: - Pages: 541-546

    • Related Report
      2014 Research-status Report
  • [Journal Article] Simulation of liquid water infiltration into layered snowpacks using multidimensional water transport model2014

    • Author(s)
      Hirashima, H., Yamaguchi, S., and Ishii, Y.
    • Journal Title

      Proceedings of the 2014 International Snow Science Workshop, Banff, Canada

      Volume: - Pages: 48-54

    • Related Report
      2014 Research-status Report
  • [Presentation] 模擬降雨散水実験 -失敗例と今後の見通し-2017

    • Author(s)
      石井吉之
    • Organizer
      ぬれ雪に関するワークショップ
    • Place of Presentation
      防災科研雪氷防災センター(新潟県長岡市)
    • Related Report
      2016 Annual Research Report
  • [Presentation] Rain-on-snow に伴う融雪災害2016

    • Author(s)
      石井吉之
    • Organizer
      日本水文科学会学術大会
    • Place of Presentation
      法政大学市ヶ谷キャンパス(東京都千代田区)
    • Year and Date
      2016-10-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] ROSイベントに関する雪氷水文学的研究の概観と見通し2016

    • Author(s)
      石井吉之
    • Organizer
      雪氷研究大会(2016・名古屋)
    • Place of Presentation
      名古屋大学豊田講堂(愛知県名古屋市)
    • Year and Date
      2016-09-29
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] 多区画ライシメーターを用いた積雪内部の不均一浸透に関する研究2016

    • Author(s)
      山口悟,平島寛行,石井吉之
    • Organizer
      雪氷研究大会(2016・名古屋)
    • Place of Presentation
      名古屋大学豊田講堂(愛知県名古屋市)
    • Year and Date
      2016-09-29
    • Related Report
      2016 Annual Research Report
  • [Presentation] SfM手法を用いた氷雪塊の野外での体積・密度計測システム2016

    • Author(s)
      イセンコ・エフゲーニー,成田泰士,石井吉之
    • Organizer
      雪氷研究大会(2016・名古屋)
    • Place of Presentation
      名古屋大学豊田講堂(愛知県名古屋市)
    • Year and Date
      2016-09-29
    • Related Report
      2016 Annual Research Report
  • [Presentation] 災害としての雪,資源としての雪2016

    • Author(s)
      石井吉之
    • Organizer
      日本分析化学会北海道支部第51回氷雪セミナー
    • Place of Presentation
      札幌北広島クラッセホテル(北海道北広島市)
    • Year and Date
      2016-01-10
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] 2次元水分移動モデルによる野外散水実験の再現計算2016

    • Author(s)
      平島寛行,石井吉之,山口悟
    • Organizer
      (公社)日本雪氷学会北信越支部研究発表会
    • Place of Presentation
      妙高市勤労者研修センター(新潟県妙高市)
    • Related Report
      2016 Annual Research Report
  • [Presentation] 多次元水分移動モデルによる模擬降雨散水実験の検証2015

    • Author(s)
      石井吉之,平島寛行,山口悟
    • Organizer
      陸水物理研究会2015年度(第37回)秋田大会
    • Place of Presentation
      秋田大学理工学部(秋田県秋田市)
    • Year and Date
      2015-11-14
    • Related Report
      2015 Research-status Report
  • [Presentation] 多次元水分移動モデルによる模擬降雨散水実験の検証2015

    • Author(s)
      石井吉之,平島寛行,山口悟
    • Organizer
      雪氷研究大会(2015・松本)
    • Place of Presentation
      信州大学理学部(長野県松本市)
    • Year and Date
      2015-09-14
    • Related Report
      2015 Research-status Report
  • [Presentation] 融雪期における雪面上への模擬降雨散水実験―積雪底面流出水の水同位体比とイオン濃度の時間変化―2014

    • Author(s)
      石井吉之,中坪俊一,森章一,的場澄人,平島寛行,山口悟
    • Organizer
      陸水物理研究会2014年度(第36回)能登大会
    • Place of Presentation
      金沢大学環日本海域環境研究センター臨海実験施設(石川県鳳珠郡能登町)
    • Year and Date
      2014-12-06 – 2014-12-07
    • Related Report
      2014 Research-status Report
  • [Presentation] 融雪期における雪面上への模擬降雨散水実験―積雪底面流出水の水同位体比とイオン濃度の時間変化―2014

    • Author(s)
      石井吉之,中坪俊一,森章一,的場澄人
    • Organizer
      雪氷研究大会(2014・八戸)
    • Place of Presentation
      八戸工業大学(青森県八戸市)
    • Year and Date
      2014-09-20 – 2014-09-23
    • Related Report
      2014 Research-status Report
  • [Remarks] 水文気象グループのウェブページ - 北海道大学低温科学研究所

    • URL

      http://www.lowtem.hokudai.ac.jp/moshiri/

    • Related Report
      2016 Annual Research Report
  • [Remarks] 北海道大学低温科学研究所水文気象グループホームページ

    • URL

      http://www.lowtem.hokudai.ac.jp/moshiri/

    • Related Report
      2015 Research-status Report

URL: 

Published: 2014-04-04   Modified: 2018-03-22  

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