Updated on 2024/04/25

写真a

 
KAWASHIMA Katsuhisa
 
Organization
Research Institute for Natural Hazards and Disaster Recovery Professor
Title
Professor
External link

Degree

  • 博士(理学) ( 1998.3   新潟大学 )

  • 理学修士 ( 1987.3   北海道大学 )

Research Interests

  • 雪氷防災

  • Disaster prevention for Railway

  • Cryosphere

  • Natural Hazard Science

  • Glaciology

  • 複合災害

  • 雪氷工学

  • 雪氷災害

Research Areas

  • Natural Science / Human geosciences

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Disaster prevention engineering

Research History (researchmap)

  • Niigata University   Research Institute for Natural Hazards and Disaster Recovery   Director

    2018.8 - 2022.7

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  • Niigata University   Research Institute for Natural Hazards and Disaster Recovery, Research Division of Environmental Dynamics   Professor

    2016.4

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  • The Open University of Japan

    2013.4 - 2014.3

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  • Niigata University   Research Institute for Natural Hazards and Disaster Recovery Division of Geo-Science Section of Glaciology and Meteorology   Associate Professor

    2011.4 - 2016.3

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  • Shinshu University   Faculty of Science

    2009.4 - 2010.3

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  • Niigata University   Research Center for Natural Hazards and Disaster Recovery   Associate Professor

    2006.4 - 2011.3

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  • Niigata University   Associate Professor (as old post name)

    2004.1 - 2006.3

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  • 科学技術庁防災科学技術研究所   客員研究官

    1997.4 - 2000.3

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  • Railway Technical Research Institute   Chief Researcher

    1989.4 - 2003.12

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Research History

  • Niigata University   Research Institute for Natural Hazards and Disaster Recovery Research Division of Cascading and Linked Multi-Hazards   Professor

    2016.4

  • Niigata University   Graduate School of Science and Technology Environmental Science and Technology Natural Disaster and Environmental Science   Associate Professor

    2011.4 - 2016.3

  • Niigata University   Research Institute for Natural Hazards and Disaster Recovery Division of Geo-Science Section of Glaciology and Meteorology   Associate Professor

    2011.4 - 2016.3

  • Niigata University   Graduate School of Science and Technology Environmental Science and Technology Natural Disaster and Environmental Science   Associate Professor

    2011.4 - 2016.3

  • Niigata University   Research Center for Natural Hazards and Disaster Recovery   Associate Professor

    2006.4 - 2011.3

  • Niigata University   Associate Professor (as old post name)

    2004.1 - 2006.3

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Education

  • Hokkaido University   Graduate School of Science   Doctoral Course for Geophysics

    1987.4 - 1989.3

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  • Hokkaido University   Graduate School of Science   Master's Course for Geophysics

    1985.4 - 1987.3

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    Country: Japan

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  • Hokkaido University   Faculty of Science   Department of Geophysics

    1981.4 - 1985.3

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    Country: Japan

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Professional Memberships

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Committee Memberships

  • 京都大学防災研究所   自然災害研究協議会 1号委員  

    2024.4   

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    Committee type:Other

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  • 日本雪氷学会・日本雪工学会   雪氷研究大会(2024・長岡)実行委員長  

    2023.9   

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    Committee type:Academic society

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  • 新潟県阿賀町   第38回雪シンポジウム 実行委員  

    2023.6 - 2023.12   

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    Committee type:Municipal

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  • 陸水物理学会   新潟大会実行委員長  

    2023.6 - 2023.11   

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    Committee type:Academic society

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  • 公益社団法人日本雪氷学会   理事・北信越支部長・災害対応委員長  

    2023.5   

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    Committee type:Academic society

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  • 日本雪工学会   理事・副会長  

    2022.5   

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    Committee type:Academic society

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  • 日本雪氷学会・日本雪工学会   雪氷学会・雪工学会の連携のあり方を考えるタスクフォース 委員長  

    2022.4 - 2023.5   

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  • 日本雪氷学会・日本雪工学会   雪氷研究大会(2022・札幌)実行委員  

    2021.8 - 2023.3   

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  • 東日本旅客鉄道株式会社   鉄道防災検討委員会 委員・降積雪防災分科会 主査  

    2021.5   

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    Committee type:Other

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  • 公益社団法人日本雪氷学会   理事・副会長・北信越支部長・災害対応委員長  

    2021.5 - 2023.5   

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    Committee type:Academic society

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  • 国土交通省北陸地方整備局   道路防災アドバイザー  

    2021.4   

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    Committee type:Government

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  • 国立大学附置研究所・センター会議   副会長・第1部会長  

    2021.4 - 2022.3   

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  • 国立研究開発法人防災科学技術研究所   雪氷災害発生予測研究推進委員会 委員長  

    2020.10   

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  • 東京大学地震研究所   協議会 協議員  

    2020.9 - 2022.3   

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  • 国立大学附置研究所・センター会議   常置委員  

    2020.4 - 2021.3   

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    Committee type:Other

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  • 信州大学   博士学位論文外部審査委員  

    2020.1 - 2020.2   

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  • 新潟県 地震被害想定調査検討委員会   委員  

    2019.10 - 2022.3   

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    Committee type:Municipal

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  • 日本雪氷学会・日本雪工学会   雪氷研究大会(2020・新潟)実行委員長  

    2019.9 - 2020.6   

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    Committee type:Academic society

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  • 公益社団法人地盤工学会   災害連絡会議 専門委員(雪氷・雪崩)  

    2018.8   

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    Committee type:Academic society

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  • 鳥取県   防災顧問  

    2018.2   

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    Committee type:Municipal

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  • 公益社団法人日本雪氷学会   災害対応委員・北信越支部副支部長  

    2017.6 - 2021.5   

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    Committee type:Academic society

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  • 西日本旅客鉄道株式会社   強風に関する運転規制検討委員会 委員  

    2017.4 - 2019.3   

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    Committee type:Other

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  • 京都大学防災研究所   自然災害研究協議会 1号委員・議長代理  

    2016.4 - 2020.3   

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    Committee type:Other

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  • 独立行政法人鉄道建設・運輸施設整備支援機構   北海道新幹線(新函館北斗・札幌間)冬期対策検討委員会 委員  

    2015.10 - 2024.3   

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    Committee type:Other

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  • 公益社団法人日本雪氷学会   理事・災害対応委員長  

    2015.5 - 2017.5   

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    Committee type:Academic society

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  • 西日本旅客鉄道株式会社   雪試験評価委員会 委員  

    2014.7 - 2016.3   

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    Committee type:Other

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  • 日本雪工学会   理事・総務委員長・雪害調査委員  

    2014.6 - 2022.5   

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    Committee type:Academic society

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  • 公益社団法人日本地球惑星科学連合   環境・災害対応委員会 委員  

    2014.6 - 2019.5   

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    Committee type:Academic society

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  • 公益社団法人日本雪氷学会   2014年度雪氷研究大会(八戸)実行委員会 委員  

    2014.4 - 2015.3   

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  • 公益社団法人日本雪氷学会   理事・事業委員長  

    2013.5 - 2015.5   

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    Committee type:Academic society

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  • 独立行政法人鉄道建設・運輸施設整備支援機構   北陸新幹線金沢・敦賀間雪害対策委員会 委員  

    2013.4 - 2018.3   

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    Committee type:Other

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  • University Austral of Chile,   Reviewer of Internal Research Funding Competition 2013  

    2012.12 - 2013.1   

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    Committee type:Other

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  • 東日本旅客鉄道株式会社   なだれ斜面管理指針に関する技術検討会 委員  

    2012.4 - 2014.3   

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    Committee type:Other

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  • 公益社団法人日本山岳ガイド協会   山と自然の安全と環境を考える特別委員会 委員  

    2010.4 - 2018.3   

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    Committee type:Academic society

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  • Snow Engineering 2012(雪工学国際会議)実行委員会   委員  

    2010.4 - 2013.3   

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    Committee type:Academic society

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  • 公益社団法人日本雪氷学会   2011年度雪氷研究大会(長岡)実行委員会 委員  

    2010.4 - 2012.3   

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    Committee type:Academic society

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  • 国立登山研修所   専門調査委員会 委員  

    2009.4 - 2013.3   

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    Committee type:Other

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  • 国立登山研修所の大学山岳部リーダー冬山研修会に係る安全確保対策に関する検討会議   委員  

    2009.4 - 2012.3   

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    Committee type:Other

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  • 公益社団法人日本雪氷学会   雪氷学会公益法人化対応準備委員会 委員  

    2009.4 - 2012.3   

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    Committee type:Academic society

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  • 日本雪工学会   理事  

    2008.6 - 2011.5   

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    Committee type:Academic society

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  • 国立研究開発法人防災科学技術研究所   雪氷災害発生予測研究推進委員会 委員  

    2008.4 - 2020.3   

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    Committee type:Other

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  • 文部科学省   登山研修所の大学山岳部リーダー冬山研修会に係る安全確保対策に関する検討会議 委員  

    2008.4 - 2009.3   

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    Committee type:Government

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  • 文部科学省登山研修所   専門調査委員会 委員  

    2008.4 - 2009.3   

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    Committee type:Government

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  • 国土交通省国土計画局   GIS防災情報ボランティアワーキンググループ メンバー  

    2007.4 - 2009.3   

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    Committee type:Government

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  • 独立行政法人鉄道建設・運輸施設整備支援機構   北海道新幹線冬季対策検討委員会 委員  

    2006.4 - 2010.3   

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    Committee type:Other

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  • 北海道大学低温科学研究所 共同利用委員会   委員  

    2006.4 - 2008.3   

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    Committee type:Academic society

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  • IWAIS 2007(構造物の大気着氷雪に関する国際WS)実行委員会   委員  

    2006.4 - 2008.3   

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    Committee type:Other

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  • 公益社団法人日本雪氷学会   和文誌編集委員  

    2005.5 - 2019.5   

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    Committee type:Academic society

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  • 社団法人日本雪氷学会   英文誌編集委員  

    2005.5 - 2009.4   

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    Committee type:Academic society

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  • 京都大学防災研究所 共同利用委員会   委員  

    2005.4 - 2009.3   

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    Committee type:Other

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  • 日本雪氷学会・日本雪工学会 中越地震雪氷災害調査検討委員会   委員  

    2004.10 - 2006.3   

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    Committee type:Academic society

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  • 社団法人日本雪氷学会   理事・財務委員長  

    2003.5 - 2007.4   

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    Committee type:Academic society

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  • 社団法人日本雪氷学会   3.27左俣谷雪崩災害調査委員会 委員  

    2000.4 - 2001.3   

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    Committee type:Academic society

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Qualification acquired

  • Certified Weather Forecaster

  • Certified Assistant to Surveyor

  • Usual Car License (first kind)

 

Papers

  • Forest damage and its braking effect on the extreme snow avalanche on Mt. Nodanishoji, Japan, in 2021 Reviewed

    Yukari Takeuchi, Yuta Katsuyama, Takafumi Katsushima, Hayato Arakawa, Satoru Adachi, Katsuhisa Kawashima

    Arctic, Antarctic, and Alpine Research   56 ( 1 )   2024.3

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    Publishing type:Research paper (scientific journal)   Publisher:Informa UK Limited  

    DOI: 10.1080/15230430.2024.2327652

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  • アルベドの時間変化モデル構築に向けた野外観測 Reviewed

    佐藤亮太, 高橋大介, 河島克久, 松元高峰

    寒地技術論文・報告集   39   2023.11

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

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  • Assessment of the vulnerability to strandings of vehicles on compacted-snow road surfaces Reviewed

    Akihiro FUJIMOTO, Katsuhisa KAWASHIMA, Hikaru KAWAMOTO, Shun WATABE, Haruhiko MURATA

    Journal of the Japanese Society of Snow and Ice   85 ( 4 )   223 - 240   2023.7

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    Publishing type:Research paper (scientific journal)   Publisher:Japanese Society of Snow and Ice  

    DOI: 10.5331/seppyo.85.4_223

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  • Internal structure and transformation process from firn to ice in a perennial snow patch nourished by snow avalanches on Mt. Rishiri, Hokkaido Reviewed

    Ryo INOUE, Katsuhisa KAWASHIMA, Takane MATSUMOTO, Masahiko SATO

    Journal of the Japanese Society of Snow and Ice   85 ( 1 )   3 - 18   2023.1

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Japanese Society of Snow and Ice  

    DOI: 10.5331/seppyo.85.1_3

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  • Vehicle-stranding events caused by snowfall in Japan: database construction and analysis of occurrence characteristics Reviewed

    84 ( 6 )   515 - 527   2022.11

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    Publishing type:Research paper (scientific journal)  

    File: 84-6_515.pdf

    DOI: 10.5331/seppyo.84.6_515

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  • 積雪底面におけるせん断強度の積雪性状との関係性 Reviewed

    佐藤亮太, 高橋大介, 河島克久, 松元高峰

    寒地技術論文・報告集   38   34 - 37   2022.11

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  • 大雪による大規模な車両滞留リスクに対するレジリエンス向上に向けて Invited

    河島克久

    高速道路と自動車   64 ( 12 )   3 - 6   2021.12

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    Authorship:Lead author   Language:Japanese  

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  • Crisis hazard assessment for snow-related lahars from an unforeseen new vent eruption: the 2018 eruption of Kusatsu-Shirane volcano, Japan Reviewed

    Kyoko S. Kataoka, Kae Tsunematsu, Takane Matsumoto, Atsushi Urabe, Katsuhisa Kawashima

    Earth, Planets and Space   73 ( 1 )   2021.12

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    Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    <title>Abstract</title>Two-thirds of the 111 active volcanoes in Japan are covered with snow for several months during winter and demonstrate high hazard and risk potentials associated with snow-related lahars during and after eruptions. On 23 January 2018, a sudden phreatic eruption occurred at the ski field on Kusatsu-Shirane (Mt. Motoshirane) volcano, Japan. This new vent eruption from the snow-clad pyroclastic cone required forecasting of future snow-related lahars and crisis hazards zonation of downslope areas including Kusatsu town, a popular tourist site for skiing and hot springs. In order to achieve a prompt hazard assessment for snow-related lahars, a multidisciplinary approach was carried out involving characterization of proximal tephra deposits, snow surveys, and numerical lahar flow simulations using the Titan2D model. To determine the input parameters for the flow model, the consideration of snow water equivalent (SWE) immediately after the eruption (on 29 January) and in the post-eruptive period (on 12 March), was significant. In the case of Kusatsu-Shirane volcano during the winter of 2018, linear relationships between altitude and SWE, obtained at different elevations, were used to estimate the snow volume around the new vents. Several scenarios incorporating snow and snowmelt (water), with or without the occurrence of a new eruption, were simulated for the prediction of future lahars. Three lahar scenarios were simulated, including A) rain-on-snow triggered, B) ice/snow slurry, and C) full snowmelt triggered by a new eruption, and indicated the flow paths (inundation areas) and travel distances. These were useful for lahar hazard zonation and identification of potential high-risk areas. Since the input parameters required for the Titan2D flow model can be relatively easily determined, the model was suitable for the 2018 eruption at Motoshirane where historical and geological lahar records are not available for calibration. The procedure used in the study will enable rapid lahar prediction and hazard zonation at snow-clad volcanoes. Further consideration for simulating a cohesive-type flow, which was predicted by the primary deposits containing large amounts of clay minerals and could not be expressed in the Titan2D flow model, is necessary.

    DOI: 10.1186/s40623-021-01522-0

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    Other Link: https://link.springer.com/article/10.1186/s40623-021-01522-0/fulltext.html

  • 大雪時のスタック車両発生メカニズムの解明 Reviewed

    藤本明宏, 河島克久, 渡部 俊, 村田晴彦

    雪氷   83 ( 5 )   507 - 522   2021.9

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    File: 83-5_507.pdf

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  • オオシラビソ林の林冠内における冠雪の落下と気象条件との関係 Reviewed

    桶谷洸太, 松元高峰, 河島克久

    雪氷   83 ( 5 )   523 - 532   2021.9

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  • Statistical predictions of streamflow during irrigation period with 2019/20 snow conditions: A case study in Shinano River Watershed Reviewed

    吉田武郎, 宮島真理子, 松尾洋毅, 森田孝治, 相原星哉, 皆川裕樹, 河島克久

    応用水文   ( 33 )   11 - 20   2021

  • Trial of quasi real-time reproduction system of snow water equivalent distribution in six prefectures of Tohoku in Japan applying the diagnostic snow model

    ( 35 )   42 - 45   2020.12

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

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  • 車両通過に伴う湿潤圧雪の轍掘れを想定した室内貫入試験 Reviewed

    藤本明宏, 川崎海, 河島克久

    寒地技術論文・報告集   36   1 - 6   2020.11

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  • 昭和と平成の豪雪年の比較からみた温暖多雪地域の雪氷災害の変容 Reviewed

    河島克久, 岩井祐佳, 栗原璃, 松元高峰

    寒地技術論文・報告集   36   77 - 82   2020.11

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  • 乾き雪のせん断強度の垂直応力・せん断速度・焼結時間に対する依存性 Reviewed

    上之和人, 河島克久

    寒地技術論文・報告集   36   34 - 38   2020.11

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  • Development of a Snow Load Alert System, "YukioroSignal" for Aiding Roof Snow Removal Decisions in Snowy Areas in Japan Reviewed

    Hiroyuki Hirashima, Tsutomu Iyobe, Katsuhisa Kawashima, Hiroaki Sano

    JOURNAL OF DISASTER RESEARCH   15 ( 6 )   688 - 697   2020.10

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:FUJI TECHNOLOGY PRESS LTD  

    This study developed a snow load alert system, known as the "YukioroSignal"; this system aims to provide a widespread area for assessing snow load distribution and the information necessary for aiding house roof snow removal decisions in snowy areas of Japan. The system was released in January 2018 in Niigata Prefecture, Japan, and later, it was expanded to Yamagata and Toyama prefectures in January 2019. The YukioroSignal contains two elements: the "Quasi-Real-Time Snow Depth Monitoring System," which collects snow depth data, and the numerical model known as SNOWPACK, which can calculate the snow water equivalent (SWE). The snow load per unit area is estimated to be equivalent to SWE. Based on the house damage risk level, snow load distribution was indicated by colors following the ISO 22324. The system can also calculate post-snow removal snow loads. The calculated snow load was validated by using the data collected through snow pillows. The simulated snow load had a root mean square error (RMSE) of 21.3%, which was relative to the observed snow load. With regard to residential areas during the snow accumulation period, the RMSE was 13.2%. YukioroSignal received more than 56,000 pageviews in the snowheavy 2018 period and 26,000 pageviews in the less snowheavy 2019 period.

    DOI: 10.20965/jdr.2020.p0688

    Web of Science

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  • 東北6県における2019-20年冬季の降積雪の特徴-過去40冬季で最小となった雪水総量-

    本谷研, 平島寛行, 佐野浩彬, 河島克久

    雪氷北信越   ( 40 )   17 - 19   2020.9

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  • 準リアルタイム積雪分布監視システムの開発 Reviewed

    伊豫部勉, 河島克久

    日本雪工学会論文集   36 ( 1 )   1 - 13   2020.1

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  • 準リアルタイム積雪分布監視システムを用いた集中豪雪の監視 Invited

    河島克久, 伊豫部勉

    都市計画   69 ( 1 )   24 - 25   2020.1

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  • Sophistication of information of snow load alert by providing 1km mesh snow distribution

    Hirashima Hiroyuki, Motoya Ken, Kawashima Katsuhisa, Sano Hiroaki

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research   2020   153 - 153   2020

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    DOI: 10.14851/jcsir.2020.0_153

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  • せん断速度制御装置によるほぐした乾きしまり雪のせん断強度の評価 Reviewed

    上之和人, 秋山一弥, 原田裕介, 河島克久

    寒地技術論文・報告集   35   85 - 90   2019.11

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  • 温暖多雪地域で発生する全層雪崩災害はなぜ厳冬期に多いのか?-積雪底面付近の積雪層における安定度の経時的変化- Reviewed

    河島克久, 松元高峰, 中渕遥平, 伊豫部勉

    寒地技術論文・報告集   35   91 - 95   2019.11

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  • 実車試験による大雪時のスタック発生メカニズム及びタイヤチェーン装着効果の解明 Reviewed

    藤本明宏, 河島克久

    寒地技術論文・報告集   35   36 - 41   2019.11

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  • 顕著大気追跡監視表示システムによる2016/2017年冬季の山陰大雪事例の解析

    春日 悟, 本田明治, 浮田甚郎, 伊豫部勉, 河島克久

    京都大学防災研究所平成29-30年度一般共同研究(課題番号:29G-01)研究成果報告書   11 - 16   2019.3

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  • 2016/17年冬季の山陰地方に大雪をもたらした大気循環場の特徴

    本田明治, 春日 悟, 山崎 哲, 河島克久

    京都大学防災研究所平成29-30年度一般共同研究(課題番号:29G-01)研究成果報告書   7 - 10   2019.3

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  • 山陰地方における積雪期の降雨現象(Rain-on-Snow)に伴う自然災害の分析

    伊豫部勉, 河島克久, 松元高峰

    京都大学防災研究所平成29-30年度一般共同研究(課題番号:29G-01)研究成果報告書   21 - 24   2019.3

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  • 山陰地方における雪氷災害資料

    渡部 俊, 河島克久, 松元高峰, 伊豫部勉, 栗原 璃

    京都大学防災研究所平成29-30年度一般共同研究(課題番号:29G-01)研究成果報告書   17 - 20   2019.3

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  • 2017年大雪による山陰地方の降積雪分布と雪氷災害の特徴

    河島克久, 伊豫部勉, 松元高峰, 渡部 俊, 栗原 璃

    京都大学防災研究所平成29-30年度一般共同研究(課題番号:29G-01)研究成果報告書   31 - 36   2019.3

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  • Relationship between tipping process of trees on a potential avalanche slope and snow pack conditions

    Matsumoto Takane, Kawashima Katsuhisa, Katsushima Takafumi, Miyashita Ayana, Iyobe Tsutomu, Watabe Shun

    The Japanese Forest Society Congress   130 ( 0 )   640 - 640   2019

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    DOI: 10.11519/jfsc.130.0_640

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  • Monitoring mechanical stresses of stem and branch by snow pressure

    Miyashita Ayana, Katsushima Takafumi, Matsumoto Takane, Kawashima Katsuhisa

    The Japanese Forest Society Congress   130 ( 0 )   644 - 644   2019

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    DOI: 10.11519/jfsc.130.0_644

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  • Study for improvement of accuracy in estimating snow water equivalent distribution

    Hirashima Hiroyuki, Motoya Ken, Kawashima Katsuhisa, Sano Hiroaki, Iyobe Tsutomu

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research   2019   258   2019

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    DOI: 10.14851/jcsir.2019.0_258

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  • 積雪変質モデルを用いた積雪重量分布情報「雪おろシグナル」の開発 Reviewed

    平島寛行, 伊豫部勉, 河島克久, 佐野浩彬, 奈倉登

    寒地技術論文・報告集   34   2018.12

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  • 融雪型火山泥流の流動性に与える雪の影響 Reviewed

    沖田竜馬, 河島克久, 松元高峰, 片岡香子, 渡部俊

    寒地技術論文・報告集   34   2018.12

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  • 鉄道の観測データでみる新潟県とその周辺地域における豪雪年の積雪分布とその鉄道への影響 Reviewed

    鈴木博人, 河島克久

    土木学会論文集B1(水工学)   74 ( 5 )   I_301 - I_306   2018.11

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  • Monitoring low-tree trunk strain during snow season on an avalanche slope

    Ayana Miyashita, Takane Mtsumoto, Katsuhisa Kawashima, Takafumi Katsushima

    Proceedings of International Snow Science Workshop 2018   103 - 105   2018.10

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  • Study on Friction Characteristics of Snow Using Rotary Drum Device

    Kenichi Oda, Katsuhisa Kawashima, Yoshikazu Kobayashi, Katsuya Nakamura

    Proceedings of International Snow Science Workshop 2018   89 - 93   2018.10

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  • 2014年関東甲信大雪による融雪地盤災害

    外狩麻子, 若井明彦, 井良沢道也, 上石勲, 町田敬, 河島克久

    地盤工学会誌   66 ( 9 )   24 - 27   2018.9

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  • 北陸地方を中心とした広域雪氷災害に関する調査研究

    河島克久, 松元高峰, 本田明治, 上石 勲, 小杉健二, 山口 悟, 平島寛行, 山下克也, 安達 聖, 伊豫部勉, 高橋 徹, 本谷 研, 藤本明宏, 宮島昌克, 池本敏和

    第55回自然災害科学総合シンポジウム講演論文集   55th   43 - 55   2018.9

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  • Lahar characteristics as a function of triggering mechanism at a seasonally snow‑clad volcano: contrasting lahars following the 2014 phreatic eruption of Ontake Volcano, Japan Reviewed

    Kyoko S. Kataoka, Takane Matsumoto, Takeshi Saito, Katsuhisa Kawashima, Yoshitaka Nagahashi, Tsutomu Iyobe, Akihiko Sasaki, Keisuke Suzuki

    Earth, Planets and Space   70   2018.7

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  • 那須雪崩災害の現地調査

    中村一樹,上石勲,河島克久,ほか21名

    平成29年度科学研究費補助金(特別研究促進費)研究成果報告書   1 - 20   2018.3

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  • 太平洋側地域に適用可能な雪崩発生危険度の評価方法

    吉川知里, 河島克久, 松元高峰

    平成29年度科学研究費補助金(特別研究促進費)研究成果報告書   128 - 133   2018.3

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  • 2017年3月27日に那須岳で雪崩災害をもたらした積雪の力学的特性

    河島克久, 松元高峰, 渡部俊, 西村浩一

    平成29年度科学研究費補助金(特別研究促進費)研究成果報告書   29 - 34   2018.3

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  • Application of information of snow weight distribution estimated by numerical snowpack model. Reviewed

    Hirashima Hiroyuki, Iyobe Tsutomu, Kawashima Katsuhisa, Sano Hiroaki, Nakura Noboru

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research   2018 ( 0 )   289 - 289   2018

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    DOI: 10.14851/jcsir.2018.0_289

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  • Bending Stress of Tree Species on a Steep Slope During the Snowfall Season

    Miyashita Ayana, Matsumoto Takane, Kawashima Katsuhisa, Katsushima Takafumi

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research   2018 ( 0 )   225 - 225   2018

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    DOI: 10.14851/jcsir.2018.0_225

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  • Relationship between tipping process of trees on a steep slope and changes in snowpack conditions

    Matsumoto Takane, Kawashima Katsuhisa, Katsushima Takafumi, Miyashita Ayana, Tsutomu Iyobe, Watabe Shun

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research   2018 ( 0 )   224 - 224   2018

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    DOI: 10.14851/jcsir.2018.0_224

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  • ルーチン積雪深と積雪水量モデルに基づく秋田県内の全層積雪密度の解析

    本谷 研, 河島克久, 松元高峰, 伊豫部勉

    東北の雪と生活   ( 32 )   9 - 14   2017.12

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  • 積雪荷重推定にむけた積雪変質モデルの応用(2)-精度検証と情報提供手法の検討- Reviewed

    平島寛行, 伊豫部勉, 河島克久

    寒地技術論文・報告集   33   47 - 50   2017.11

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  • アメダス観測値を用いた任意地点の積雪底面流出量の推定 Reviewed

    飯倉茂弘, 佐藤亮太, 高橋大介, 鎌田慈, 宍戸真也, 河島克久, 松元高峰, 伊豫部勉

    寒地技術論文・報告集   33   51 - 54   2017.11

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  • Rain-on-Snowイベントと積雪期の災害リスク Invited

    河島克久, 松元高峰, 伊豫部勉, 平井柔

    地盤工学会誌   65 ( 9 )   26 - 27   2017.9

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  • 蔵王火山亜高山帯のオオシラビソ林における積雪グライドの観測

    佐々木明彦, 河島克久, 松元高峰, 伊豫部勉, 倉元隆之, 鈴木啓助

    国士舘大学地理学報告   ( 25 )   17 - 24   2017.3

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  • Construction of an Information Platform for Volcanic Disaster-Prevention during Snow Season in a Snow-Clad Volcano Area Reviewed

    32   80 - 84   2016.11

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  • 積雪荷重推定にむけた積雪変質モデルの応用 Reviewed

    平島寛行, 伊豫部勉, 河島克久, 上石勲

    寒地技術論文・報告集   32   33 - 37   2016.11

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  • Temporal and spatial variabilities of snow water equivalent on snow covered volcano : case study of Ontake volcano Reviewed

    32   27 - 32   2016.11

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  • Acceleration processes of snow glide prior to full-depth avalanche release on shrub slopes in the temperate heavy-snow region of Japan

    Kawashima, K, Iyobe, T, Matsumoto, T

    Proceeding of the International Snow Science Workshop 2016   525 - 532   2016.10

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  • 小型UAVを用いた積雪分布の3次元計測 Reviewed

    小花和宏之, 河島克久, 松元高峰, 伊豫部勉, 大前宏和

    雪氷   78 ( 5 )   317 - 328   2016.9

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  • Long-term variations and trends in the annual maximum snow depth and snow cover duration in Niigata Prefecture Reviewed

    78 ( 5 )   291 - 306   2016.9

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    File: 雪氷78-5_柴田_河島_鈴木.pdf

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  • 2015ネパール・ゴルカ地震によるランタン谷の雪・土砂なだれ調査報告

    山口悟, 西村浩一, 藤田耕史, 和泉薫, 河島克久, 伊藤陽一, 上石勲

    科学研究費補助金(特別研究促進費)研究成果報告書   63 - 70   2016.3

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  • 新潟地域における融雪災害をもたらす降雨イベント(ROSイベント)の発生特性 Reviewed

    平井柔, 河島克久, 松元高峰, 伊豫部勉

    第30回北陸雪氷シンポジウム論文集   49 - 54   2015.11

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  • 2014 年2 月関東甲信大雪における詳細な積雪深分布の特徴 Reviewed

    伊豫部勉, 松元高峰, 河島克久, 和泉薫

    雪氷   77 ( 5 )   411 - 420   2015.9

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  • 2014年2月14-15日の関東甲信地方の大雪における降水形態と雪氷災害の地域性との関連 Reviewed

    河島克久, 松元高峰, 伊豫部勉, 和泉薫

    雪氷   77 ( 4 )   313 - 325   2015.7

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  • Meteorological conditions causing snow accretion damage to Cryptomeria japonica plantations in southwest of Tochigi Prefecture in February 2014 Reviewed

    77 ( 4 )   327 - 337   2015.7

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  • 小千谷市積雪期地域防災情報プラットフォームの構築

    河島克久, 伊豫部勉, 本田明治

    ゆき   25 ( 4 )   20 - 23   2015.3

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  • Distribution of Snow Water Equivalent on Mt. Ontake

    Iyobe Tsutomu, Kawashima Katsuhisa, Matsumoto Takane, Izumi Kaoru, Kataoka Kyoko, Sasaki Akihiko, Suzuki Keisuke, Saito Takeshi

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research   2015   90 - 90   2015

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    DOI: 10.14851/jcsir.2015.0_90

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  • Dependence of estimation method for slope solar radiation ontemporal and spatial resolution

    Uno Fumichika, Kawashima Katsuhisa, Iyobe Tsutomu, Matsumoto Takane, Togari Asako

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research   2015   142 - 142   2015

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    DOI: 10.14851/jcsir.2015.0_142

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  • Frequency and Interannual Variability of Rain-on-Snow Events in Niigata Area

    Hirai Yawara, Kawashima Katsuhisa, Matsumoto Takane, Iyobe Tsutomu

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research   2015   141 - 141   2015

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    DOI: 10.14851/jcsir.2015.0_141

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  • Observation of snow cover glide on Sub-Alpine Coniferous Forests in Central Japan

    Sasaki Akihiko, Kawashima Katsuhisa, Matoba Sumito, Iyobe Tsutomu, Matsumoto Takane, Kuramoto Takayuki, Suzuki Keisuke

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research   2015   232 - 232   2015

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    DOI: 10.14851/jcsir.2015.0_232

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  • Rain-triggered lahar and rain-on-snow runoff events after the 2014 eruption of Ontake volcano, central Japan

    Kataoka Kyoko S., Matsumoto Takane, Saito Takeshi, Kawashima Katsuhisa, Iyobe Tsutomu, Sasaki Akihiko, Suzuki Keisuke, Nagahashi Yoshitaka

    Annual Meeting of the Geological Society of Japan   2015   55 - 55   2015

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    DOI: 10.14863/geosocabst.2015.0_055

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  • Snow Surface Energy Balance during Rain-on-Snow Events at Oshirakawa, Niigata Prefecture

    Kawashima Katsuhisa, Kato Kazuki, Matsumoto Takane, Iyobe Tsutomu, Togari Asako, Suzuki Osamu

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research   2015   245 - 245   2015

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    DOI: 10.14851/jcsir.2015.0_245

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  • 3D mapping of snow-covered area and estimation of snow-depth using UAV remote sensing

    Obanawa Hiroyuki, Kawashima Katsuhisa, Ohmae Hirokazu

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research   2015   267 - 267   2015

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    DOI: 10.14851/jcsir.2015.0_267

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  • Measurements of Liquid-Water Outflow at the Base of the Snowpack on a Slope by a Large-Size Snowmelt Lysimeter

    Kawashima Katsuhisa, Iyobe Tsutomu, Matsumoto Takane, Iikura Shigehiro, Motoya Ken, Ishimaru Taminoe, Maruyama Toshisuke

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research   2015   244 - 244   2015

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    DOI: 10.14851/jcsir.2015.0_244

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  • The influence of meltwater on the borehole tiltmeter for volcano monitoring

    KIMIURA Kazuhiro, KAWASHIMA Katsuhisa, MATSUMOTO Takane, IYOBE Tsutomu, SASAKI Akihiko, NAKAHASHI Masaki

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research   2015   91 - 91   2015

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    DOI: 10.14851/jcsir.2015.0_91

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  • Post-eruption sediment transport at a snow-clad volcano

    Kataoka Kyoko S., Matsumoto Takane, Saito Takeshi, Kawashima Katsuhisa, Iyobe Tsutomu, Sasaki Akihiko, Suzuki Keisuke, Nagahasi Yoshitaka

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research   2015   89 - 89   2015

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    DOI: 10.14851/jcsir.2015.0_89

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  • Features of snowmelt and surface heat balance on the southeast slope of Ontake volcano

    Matsumoto Takane, Kawashima Katsuhisa, Iyobe Tsutomu, Izumi Kaoru, Kato Kazuki, Sasaki Akihiko, Suzuki Keisuke

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research   2015   88 - 88   2015

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    DOI: 10.14851/jcsir.2015.0_88

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  • Research Activitiesof OntakeVolcanofromthe Viewpoint of Snow-Volcano Interrelations

    Kawashima Katsuhisa, Iyobe Tsutomu, Matsumoto Takane, Kataoka Kyoko S., Izumi Kaoru, Sasaki Akihiko, Suzuki Keisuke, Saito Takeshi

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research   2015   87 - 87   2015

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    DOI: 10.14851/jcsir.2015.0_87

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  • On the Analysis of Avalanche Accidents in the 2014/15 Winter

    Izumi Kaoru, Iyobe Tsutomu, Kawashima Katsuhisa, Matsumoto Takane

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research   2015   41 - 41   2015

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    DOI: 10.14851/jcsir.2015.0_41

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  • Long-Term Variations and Trends of the Annual Maximum Snow Depth and Snow Cover Duration in Niigata Prefecture

    Shibata Yuki, Kawashima Katsuhisa, Suzuki Hiroto

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research   2015   204 - 204   2015

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    DOI: 10.14851/jcsir.2015.0_204

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  • 日本海沿岸から中部山岳の多雪地域における積雪水量の算出

    倉元隆之, 河島克久, 伊豫部勉, 松元高峰, 鈴木啓助, 佐々木明彦

    新潟大学災害・復興科学研究所年報   ( 3 )   146 - 148   2014.12

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  • Analysis of Regional Difference in Altitude Dependence of Snow Depth Using High Resolve Numerical Experiments Reviewed

    Fumichika Uno, Hiroaki Kawase, Noriko N. Ishizaki, Takao Yoshikane, Masayuki Hara, Fujio Kimura, Tsutomu Iyobe, Katsuhisa Kawashima

    SOLA   10   19 - 22   2014

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    This study focuses on the main factor of regional difference in Altitudinal Dependency of Snow Depth (ADSD) and discusses the applicable range of snow cover estimation method with ADSD. We use the high-density surface observational data and a regional climate model in Niigata Prefecture. The estimation method with ADSD produces significant estimation error if the method is applied to broad areas. The high-density observational data show the regional difference of ADSD between windward and leeward areas with a coastal mountain. Numerical simulation reproduces these observational results. We evaluate mountain effects on the regional difference of ADSD using sensitivity experiments. In the sensitivity experiment, the altitude is changed from a mountain to a flat plain. The sensitivity experiment shows that the regional differences of ADSD are not simulated. The results indicate that the applicable range of the estimation method with ADSD is limited to a single slope and mountain. It should be noted that this method has a high probability of increasing the estimation error in complex mountainous areas, particularly in the coastal area of the Japan Sea.

    DOI: 10.2151/sola.2014-005

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  • Relationship between snow hardness and microstructure of seasonal snow cover Reviewed

    荒川逸人, 和泉薫, 河島克久, 石井吉之

    雪氷   75 ( 6 )   449 - 460   2013.11

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  • Creation of Detailed Snow-Depth Map by Consolidating Data from Multiple Sources on the Web Reviewed

    28 ( 3 )   211 - 220   2012.7

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  • 湿潤高密度積雪の引張破壊強度の密度・含水率依存性 Reviewed

    栗原靖, 河島克久, 和泉薫

    雪氷   74 ( 1 )   23 - 31   2012.1

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  • A snow-melting system using water sprinkling on the extended section of the Tohoku Shinkansen line and its performance confirmation tests Reviewed

    Noguchi, M, Kobayashi, H, Kikuchi, T, Kawashima, K, Iikura, S, Fujii, T, Iyobe, T

    Journal of Snow Engineering of Japan   27 ( 3 )   204 - 213   2011.7

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  • 積雪層からの融雪水量推定手法の構築 Reviewed

    外狩麻子, 島村誠, 森島啓行, 河島克久, 伊豫部勉, 松元高峰, 山口英俊

    土木学会・鉄道工学シンポジウム論文集   ( 15 )   183 - 189   2011.7

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  • 寒冷地の新幹線における散水消雪方式の適用限界把握 Reviewed

    野口守, 小林等, 飯倉茂弘, 河島克久, 伊豫部勉, 藤井俊茂

    寒地技術論文・報告集   26   126 - 129   2010.12

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  • 群馬県草津町氷谷における天然氷の形成・保存過程と越年性凍土の研究 Reviewed

    山口健太郎, 和泉薫, 河島克久, 伊豫部勉

    寒地技術論文・報告集   26   101 - 105   2010.12

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  • 時間融雪量を推定するための簡易センサの開発とその精度評価 Reviewed

    河島克久, 松元高峰, 伊豫部勉, 外狩麻子, 島村誠, 廣瀬茂樹

    寒地技術論文・報告集   26   38 - 41   2010.12

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  • Relationship between intrinsic permeability and microstructure of seasonal snow cover Reviewed

    荒川逸人, 和泉薫, 河島克久, 石井吉之

    雪氷   72 ( 5 )   311 - 321   2010.9

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  • 気温・日射量を指標とする表面融雪量モデルと積雪層浸透モデルとを組み合わせた積雪底面流出量の推定 Reviewed

    松元高峰, 河島克久, 外狩麻子, 島村誠

    雪氷   72 ( 4 )   255 - 270   2010.7

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  • 客観的指標に基づく雪崩警備方法の検討 Reviewed

    栗原靖, 飯倉茂弘, 鎌田慈, 宍戸真也, 高橋大介, 河島克久

    寒地技術論文・報告集   25   77 - 82   2009.11

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  • Study on quantitative classification of seasonal snow using specific surface area and intrinsic permeability Reviewed

    Hayato Arakawa, Kaoru Izumi, Katsuhisa Kawashima, Toshiyuki Kawamura

    COLD REGIONS SCIENCE AND TECHNOLOGY   59 ( 2-3 )   163 - 168   2009.11

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    The release mechanism of snow avalanches depends on the mechanical properties of snow, which are closely related to snow microstructure. Previous observations show that snow microstructure can be described qualitatively on the basis of snow types, However, the qualitative determination of snow types may become subjective. Therefore, it is essential to quantitatively classify snow. The specific surface area (SSA) and intrinsic permeability (k(0)) are closely related to the snow microstructure. In particular, we believe that the former parameter reflects the features of the grains. and the latter parameter indicates the characteristics of the pores. Measurements of the specific surface area per unit snow volume (SSAV) and the intrinsic permeability were performed on the naturally deposited dry snow in Hokkaido prefecture. Japan, during the winter of 2007-2008. SSAV was measured using a stereological method, where the section planes of snow samples were prepared, imaged, and analyzed, and the SSA per unit mass (SSAM) was obtained by dividing SSAV by the snow density. The value of SSAV indicates only the area size, while the value of SSAM indicates the snow microstructure. k(0) was measured in situ using an air permeameter with a double cylinder, and it was calculated assuming a laminar flow in order to satisfy Darcy&apos;s law. The results showed that the correlation between SSAM and k(0) could be used to clearly distinguish the snow types. In addition. we could confirm certain changes in SSAM and k(0) accompanied by the occurrence of the two processes of temperature gradient and melt-freezing metamorphism, which occur in the snow cover. (C) 2009 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.coldregions.2009.07.004

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  • 寒冷地の新幹線におけるスプリンクラー散水消雪方式の適用性に関する基礎的研究 Reviewed

    野口守, 小林等, 河島克久, 飯倉茂弘, 藤井俊茂, 伊豫部勉, 鎌田慈

    寒地技術論文・報告集   25   68 - 72   2009.11

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  • 2004年8月に新潟県荒沢岳で発生した雪渓崩落災害の実態と過去40年間の災害分析 Reviewed

    河島克久, 栗原靖, 和泉薫

    雪氷   71 ( 6 )   455 - 469   2009.11

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  • Study of snow climate in the Japanese Alps: Comparison to snow climate in North America Reviewed

    Shinji Ikeda, Ryuzo Wakabayashi, Kaoru Izumi, Katsuhisa Kawashima

    COLD REGIONS SCIENCE AND TECHNOLOGY   59 ( 2-3 )   119 - 125   2009.11

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    In the case of the Japanese Alps, it is experientially known that there is a notable snow climate difference between the Japan Sea side mountains and the Pacific Ocean side mountains. For the purpose of improving avalanche safety, we studied the snow climate characteristics using meteorological and snow pit data collected from two study plots in the mountain regions. Ten years of meteorological data and 4-10 years of snow pit data were employed in the study. A snow climate classification scheme proposed in North America was used to determine the snow climate of these study plots. The general snowpack characteristics for each snow climate presented in previous studies were used in the present study to determine the snowpack characteristics of the study plots. Both meteorological and snow pit data suggested that the Japan Sea side mountains have the same characteristics as the maritime snow climate in North America. On the other hand, the Pacific Ocean side mountains have unique characteristics caused by a combination of continental and maritime climate influences. The Pacific Ocean side mountains have similar characteristics to the continental snow climate of North America, however, that climate is different in that it is characterized by a large amount of rainfall and a high predominance of faceted crystals and wet grains. We identified a new snow climate for the Pacific Ocean side mountains of the Japanese Alps, a "rainy continental snow climate." (C) 2009 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.coldregions.2009.09.004

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  • 妙高幕ノ沢で2008年2月に発生した大規模な乾雪表層雪崩 Reviewed

    竹内由香里, 平島寛行, 和泉薫, 上石勲, 河島克久, 山口悟, 宮崎伸夫, 西村浩一, Evgenity Podolskiy, 鈴木貴, 村上茂樹, 遠藤八十一

    雪氷   71 ( 3 )   167 - 176   2009.5

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  • Relationship between specific surface area per unit volume and microstructure of seasonal snow cover Reviewed

    荒川逸人, 荒川逸人, 和泉薫, 河島克久, 河村俊行

    雪氷   71 ( 1 )   3 - 12   2009.1

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  • 2007年新潟県中越沖地震による建物被害と地盤災害

    卜部厚志, 高濱信行, 河島克久, 鈴木幸治, 和泉薫, 福留邦洋, 梶壮志, 本田孝子

    新潟大学災害復興科学センター年報   ( 2 )   135 - 163   2008.7

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  • Validation of the accuracy of daily amount of snowmelt estimated by using advanced degree-day method

    Kawashima Katsuhisa, Izumi Kaoru

    Annual report   ( 2 )   119 - 124   2008.7

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  • 九州北部における雪室・氷室の分布と歴史的変遷 Reviewed

    和泉薫, 伊豫部勉, 河島克久

    寒地技術論文・報告集   23   7 - 12   2007.12

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  • Mechanical characteristics of high-density snow blocks during collision Reviewed

    SHOJI Atsushi, IZUMI Kaoru, KAWASHIMA Katsuhisa, IYOBE Tsutomu

    Journal of the Japanese Association of Snow and Ice   69 ( 4 )   471 - 480   2007.7

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    This study deals with the mechanical characteristics of high-density snow blocks during collision. Estimating the impact force and impact pressure of high-density snow blocks is necessary for protection against avalanches. We measured the impact force and impact pressure of many snow blocks with densities of 630∼790 kgm<SUP>-3</SUP>. Additionally, we observed the failure process by using a high-speed video camera. The results revealed that the maximum impact force increased with the snow density if the snow blocks were under the same conditions of 4.0kg in mass and 3.5×10<SUP>-2</SUP> m<SUP>2</SUP> in cross section. The velocity of each part of a low-density snow block gradually decreased from the collision side. In contrast, the velocity of each part of a high-density snow block concurrently decreased overall. The failure process of high-density snow blocks was similar to that of a brittle material. Therefore, the momentum changes in entire snow blocks were concentrated over a short time period. When a high-density snow block collided at its corner, the maximum impact force was lower than that in facet collision. However, the maximum impact pressure in corner collision was 2-3 times as higher than that in facet collision. During collision, the major mechanical characteristics of high-density snow blocks were believed to be similar to those of a rigid body, a feature that was not observed in low-density snow blocks.

    DOI: 10.5331/seppyo.69.471

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  • 記録的少雪と記録的豪雪の積雪深分布の比較

    河島克久

    雪氷北信越   27   15 - 17   2007.5

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  • Characteristics of snow-depth distribution in Japan during heavy snowfall of 2005-2006 winter Reviewed

    IYOBE Tsutomu, KAWASHIMA Katsuhisa, IZUMI Kaoru

    Journal of the Japanese Association of Snow and Ice   69 ( 1 )   45 - 52   2007.1

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    In this paper, we perform a detailed evaluation of the snow-depth distribution in Japan caused by heavy snowfall of 2005-2006 winter. The snow-depth data were investigated according to the values measured all over Japan on February 6, 2006; consequently, 1917 points were collected. Heavy snow areas (depth of over 3 m) were found mainly in the inland mountainous regions bordering the Sea of Japan. The highest snow-depth value was 5 m around Echigo-Sanzan. The snow depth uniformly increased with an increase in the altitude in all the regions bordering the Sea of Japan; however, the ratios of the increases in the snow depth to the altitude were different. The snow depths in Yamagata and Niigata prefectures remained unchanged at over 300 m a.s.l. These results can be attributed to the consolidation of the snowpack as a result of both the high snowfall loading and long duration of snow covering. In the Niigata prefecture, a pattern of peak values was observed at higher altitudes during other heavy snowfall occurrences as well, which implies that such altitudinal distribution of the snow depth was not limited only during the 2005-2006 winter. In the heavy snowfall area located in inland mountainous region, the snow-depth distribution at 315 points (measured by the Japan Meteorological Agency) was estimated to be smaller than the values in our data for a depth of above 1 m; therefore, it might be impossible to exactly understand the snow-depth distribution including the maldistribution of the snowpacks in inland mountainous regions.

    DOI: 10.5331/seppyo.69.45

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  • Regional characteristics of snow cover by multipoint snow pit observations conducted during the heavy snowfall of 2005/2006 winter in Japan Reviewed

    河島克久, 和泉薫, 伊豫部勉, 阿部修, 小杉健二, 山口悟, 竹内由香里, 川田邦夫, 竹井巌

    雪氷   69 ( 1 )   9 - 20   2007.1

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    DOI: 10.5331/seppyo.69.9

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  • 台車側面の着氷雪量計測システムの開発

    飯倉茂弘, 河島克久, 遠藤徹, 鎌田慈, 宍戸真也, 藤井俊茂

    鉄道総研報告   21 ( 1 )   19 - 24   2007.1

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  • 雪泥流の発生メカニズムの解明に向けて Invited

    河島克久

    WEATHAC   10   3 - 6   2006.12

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  • 平成18年豪雪における広域積雪特性と雪氷災害

    河島克久

    新潟応用地質研究会誌   67   11 - 14   2006.12

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  • 鉄道における車両着雪現象およびバラスト飛散現象に関する研究開発

    河島克久

    着氷雪研究会講演録   53 - 66   2006.11

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  • 固有透過度と比表面積による雪質の定量的分類 Reviewed

    荒川逸人, 尾関俊浩, 川田邦夫, 和泉薫, 河島克久, 河村俊行

    寒地技術論文・報告集   22   6 - 11   2006.11

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  • 江戸時代における雪氷献上の雪氷・気候学的研究

    和泉薫, 河島克久, 石坂雅昭, 納口恭明

    寒地技術論文・報告集   22   526 - 530   2006.11

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  • 列車走行時の濡れ雪の舞い上がり発生に影響する雪質の変化(その1) Reviewed

    飯倉茂弘, 鎌田慈, 宍戸真也, 遠藤徹, 藤井俊茂, 河島克久

    寒地技術論文・報告集   22   171 - 174   2006.11

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  • 積雪水量差を用いた日融雪量算出の問題点 Reviewed

    河島克久, 外狩麻子, 岸滋, 石丸民之永, 松田益義, 栗原靖

    寒地技術論文・報告集   22   76 - 80   2006.11

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  • 日本における過去40年間の雪渓崩落災害─新潟・富山・長野・群馬県の災害の特徴─ Reviewed

    栗原靖, 河島克久, 和泉薫, 伊豫部勉

    寒地技術論文・報告集   22   55 - 60   2006.11

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  • 積雪の広域特性からみた平成18年豪雪

    河島克久

    雪氷   68 ( 4 )   321 - 323   2006.7

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  • 水無川における積雪期の河川水位変動と低気圧通過時の出水 Reviewed

    河島克久, 和泉薫, 伊豫部勉, 野崎元嗣

    寒地技術論文・報告集   21   229 - 235   2005.12

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  • 2004年-05年冬季に新潟県中越地域を襲った豪雪と積雪深分布の変化

    伊豫部勉, 和泉薫, 河島克久

    新潟大学積雪地域災害研究センター研究年報   27   75 - 78   2005.12

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  • 塩沢において観測された降雪の化学的性状と黄砂の関係について

    伊豫部勉, 和泉薫, 河島克久, 飯倉茂弘, 遠藤徹

    新潟大学積雪地域災害研究センター研究年報   27   65 - 69   2005.12

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  • 北陸地域における融雪期の積雪中化学成分および固体微粒子濃度の分布 Reviewed

    伊豫部勉, 河島克久, 和泉薫, 阿部修, 飯倉茂弘, 遠藤徹

    寒地技術論文・報告集   21   318 - 323   2005.12

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  • 車両着氷雪量計測システムの開発 Reviewed

    飯倉茂弘, 宍戸真也, 遠藤徹, 藤井俊茂, 河島克久, 秋庭賢二

    寒地技術論文・報告集   21   19 - 25   2005.12

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  • 誘電方式と熱量方式による積雪含水率計の比較測定 Reviewed

    竹内由香里, 遠藤八十一, 山口悟, 河島克久, 村上茂樹, 平島寛行, 伊豫部勉, 宮崎伸夫, 納口恭明, 佐藤和秀

    寒地技術論文・報告集   21   220 - 224   2005.12

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  • 台車周辺の車体形状が濡れ雪の舞い上がりに及ぼす影響の評価

    飯倉茂弘, 井門敦志, 河島克久, 遠藤徹, 日比野有, 宍戸真也, 藤井俊茂

    鉄道総研報告   19 ( 11 )   51 - 56   2005.10

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  • Adaptability of icicle prevention work by adiabatic treatment in thin-earth-covering tunnel: Part. 1 (Tunnel cross section model and cyclic changes in temperature)

    K. Okada, T. Fujii, T. Sugiyama, K. Kawashima, S. Iikura

    Bulletin of Science and Engineering Research Institute, Kokushikan Univ.   17 ( 17 )   1 - 8   2005.3

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  • 列車からの落氷雪によるバラスト飛散現象の解明

    飯倉茂弘, 河島克久, 遠藤徹, 藤井俊茂

    Railway Research Review   62 ( 2 )   26 - 29   2005.2

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  • Do you know YUKIGATA?

    NOHGUCHI Yasuaki, IZUMI Kaoru, ENDO Yasoichi, KAWASHIMA Kastuhisa, KOBAYASHI Toshiichi

    Transactions of Visualization Society of Japan   25 ( 2 )   121 - 122   2005

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    Remaining snow surrounded by a ground surface and a ground surface surrounded by remaining snow are called yukigata in Japan. Some of famous yukigatas have a name and oral literature. There are more than 300 famous yukigatas. The yukigatas have been used mainly as a kind of calendar for agriculture in most of the snowy regions in Japan since long ago. Recently, however, the yukigatas are being forgotten because the primitive ways for agriculture are disappearing with the progress of agricultural technology. On the other hand, the formation of yukigata is governed by the topography of the mountains and snow accumulation and snowmelt. Therefore, yukigatas have information on topographical features, distribution of mountain snow and climate change. Moreover, it is possible to use yukigata as sightseeing resources or material for nature education.

    DOI: 10.3154/jvs.25.Supplement2_121

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  • Snow melting function in snow melting system using sprinkled water for new Shinkansen line in cold region Reviewed

    K. Okada, T. Fujii, K. Kawashima, S. Iikura

    Pacific Science Review   6   170 - 176   2004.12

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  • 濡れ雪の舞い上がり抑制方法の開発

    飯倉茂弘, 遠藤徹, 藤井俊茂, 日比野有, 井門敦志, 河島克久

    Railway Research Review   61 ( 12 )   28 - 31   2004.12

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  • 薬剤散布による氷板及び圧雪の表面状態と力学的性質の変化

    山家淳史, 伊豫部勉, 和泉薫, 河島克久, 小杉健二, 根本征樹, 望月重人, 庄司淳

    新潟大学積雪地域災害研究センター研究年報   26   115 - 119   2004.12

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  • 盆地における融雪初期の積雪水量の高度分布 Reviewed

    河島克久, 飯倉茂弘, 遠藤徹, 藤井俊茂, 渡辺美保, 和泉薫

    寒地技術論文・報告集   20   241 - 246   2004.10

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  • 雪泥流の発生予測の研究 Reviewed

    小林俊一, 佐藤篤司, 河島克久, 石丸民之永, 丸山敏介

    寒地技術論文・報告集   20   297 - 299   2004.10

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  • 鉄道車両通過時の濡れ雪の舞い上がりに及ぼす台車周辺形状の評価 Reviewed

    飯倉茂弘, 遠藤徹, 藤井俊茂, 井門敦志, 河島克久

    寒地技術論文・報告集   20   227 - 234   2004.10

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  • 融雪期における盆地内の気温減率 Reviewed

    河島克久, 飯倉茂弘, 遠藤徹, 藤井俊茂, 藤江佑馬, 和泉薫

    寒地技術論文・報告集   20   252 - 256   2004.10

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  • 気象・積雪の連続観測による谷川岳の雪崩発生特性の研究 Reviewed

    永井拓三, 和泉薫, 河島克久, 伊豫部勉

    寒地技術論文・報告集   20   292 - 296   2004.10

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  • 北海道十勝地方における道路雪崩の特徴

    大槻政哉, 和泉薫, 河島克久, 竹内政夫

    寒地技術論文・報告集   20   680 - 683   2004.10

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  • 高密度雪塊の衝撃力特性に関する研究 Reviewed

    庄司淳, 和泉薫, 河島克久, 伊豫部勉

    寒地技術論文・報告集   20   268 - 273   2004.10

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  • Snow melting tests using sprinkled water for the extended section of Tohoku Shinkansen line

    T. Fujii, K. Kawashima, S. Iikura, J. Nagoshi, H. Kobayashi, K. Tokura, K. Okada

    Proceedings of 7th International Symposium on Cold Region Development   413 - 419   2004.9

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  • 雪崩監視システムの開発

    飯倉茂弘, 河島克久, 遠藤徹, 藤井俊茂

    鉄道と電気技術   15 ( 9 )   38 - 42   2004.9

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  • 雪形の出現日と生物季節現象の経年変化の比較

    河島克久

    雪氷北信越   24   17 - 22   2004.5

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  • Effects of temperature changes in the tunnel on the frost penetration depth in a railway tunnel

    K. Okada, T. Fujii, T. Sugiyama, K. Kawashima, S. Iikura

    Bulletin of Science and Engineering Research Institute, Kokushikan Univ.   16 ( 16 )   1 - 22   2004.3

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  • Development of Snow Avalanche Alarming System Applicable to Traffic Administration Reviewed

    IIKURA Shigehiro, KAWASHIMA Katsuhisa, ENDO Toru, FUJII Toshishige, WATANABE Hiroyuki, IKEDA Masatoshi

    Journal of Japan Association for Snow Engineering   20 ( 1 )   35 - 47   2004.1

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    Serious accidents have frequently occurred due to avalanches on roads and railways until now. Accordingly, various anti-avalanche structures are installed at the slopes subjected to avalanches. However, it is impossible to completely protect roads and railways from the damage of avalanche only by anti-avalanche structures. When an avalanche has occurred, it is necessary to implement road traffic regulation, suspension of train operation and restoration work without delay. For this purpose, it is important to detect the occurrence of avalanche correctly and immediately transmitted the information to the administrators of roads and railways. The Authors had already developed a snow avalanche detecting device and verified its performance. Alarm transmitting and failure diagnostic functions were added to this device to develop a new snow avalanche alarming system. In order to confirm its availability, we carried out long-term field tests at a slope prone to avalanche, at Mitsumata in Niigata Prefecture, for two winter seasons, from January 2002 to April 2003. Consequently, this system correctly detected three avalanches, and the information on the occurrence of avalanches and their scales was successfully transmitted to remote places without delay. During the test period, no system failures due to snowfall or low temperature occurred to demonstrate that the system had excellent practicality.

    DOI: 10.4106/jsse.20.35

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  • New technique for detecting snow avalanches using a vibration sensor

    Shigehiro Iikura, Katsuhisa Kawashima, Toru Endo, Toshishige Fujii

    Japanese Railway Engineering   150   22 - 25   2003.12

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  • 光切断法を用いた鉄道車両の着雪量測定装置の開発 Reviewed

    河島克久, 飯倉茂弘, 遠藤徹, 藤井俊茂

    寒地技術論文・報告集   19   226 - 231   2003.11

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  • 鉄道における雪崩災害と雪崩警報装置の歴史

    飯倉茂弘, 河島克久, 和泉薫

    寒地技術論文・報告集   19   226 - 231   2003.11

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  • 列車からの落氷雪によるバラスト飛散現象に関する実験的研究

    河島克久, 飯倉茂弘, 遠藤徹, 藤井俊茂

    鉄道総研報告   17 ( 8 )   31 - 36   2003.8

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  • 融雪量を気温から簡易に推定する

    河島克久, 飯倉茂弘, 布川修

    Railway Research Review   60 ( 8 )   26 - 29   2003.8

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  • 落氷雪によるバラスト飛散が起こりやすい日の気象条件

    飯倉茂弘, 河島克久, 遠藤徹, 藤井俊茂

    Railway Research Review   60 ( 8 )   22 - 25   2003.8

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  • Observation of heterogeneous structure of snow cover in melt season Reviewed

    K. Kawashima, S. Iikura, T. Endo, T. Fujii, S. Kobayashi

    Data of Glaciological Studies   94   110 - 114   2003.5

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  • 斜面崩壊に及ぼす融雪量の簡易推定方法

    布川修, 杉山友康, 太田直之, 河島克久, 飯倉茂弘, 藤井俊茂, 岡田勝也, 草野國重

    豪雨時の斜面崩壊のメカニズムおよび危険度予測に関するシンポジウム発表論文集   91 - 96   2003.4

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  • Engineering Evaluation for Avalanche Risk Along the Tohoku Shinkansen Between Morioka and Hachinohe Reviewed

    NIIYAMA Junichi, MATSUDA Hiroshi, IIKURA Shigehiro, KAWASHIMA Katsuhisa, FUJII Toshishige

    Journal of snow engineering   19 ( 2 )   91 - 101   2003.4

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    DOI: 10.4106/jsse.19.91

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  • トンネル内における列車からの落氷雪及び吹き込み雪の実態調査 Reviewed

    河島克久, 飯倉茂弘, 遠藤徹, 藤井俊茂

    寒地技術論文・報告集   18   312 - 317   2002.11

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  • Development of a simple method for estimating daily amount of snowmelt with the object of application to railway disaster prevention Reviewed

    KAWASHIMA Katsuhisa, IIKURA Shigehiro, SUGIYAMA Tomoyasu, ENDO Toru, FUJII Toshishige

    Journal of the Japanese Association of Snow and Ice   64 ( 6 )   605 - 615   2002.11

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    Slope failures of embankments and cut slopes sometimes occur along railway lines during the snowmelt season. To ensure the safety of train operation, it is important to take adequate measures, such as suspension of train operation and circuit inspection of slope conditions, according to the amount of snowmelt. In this study, the applicability of the degree-day method to estimation of the daily amount of snowmelt was discussed on the basis of data obtained from snowmelt observations at Ginzan in Hokkaido, Kurosawa in Akita Prefecture and Shiozawa in Niigata Prefecture. Consequently, the mean value between the mean air temperature of a given day and that of the previous day was found to be more suitable than that of the given day alone as a temperature used to estimate the daily snowmelt amount of the given day. It was indicated that the degree-day factor tended to become larger with the course of time. Therefore, a method was proposed to determine the appropriate degree-day factor by giving the first date when continuous snowmelt occurs. Because this date can also be roughly determined by using air temperature data alone, input of air temperature data into the alarm system of railway disaster prevention may contribute to the safe train operation.

    DOI: 10.5331/seppyo.64.605

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  • Snow avalanche detecting system using a vibration sensor Reviewed

    S. Iikura, K. Kawashima, T. endo, T. Fujii

    Data of Glaciological Studies   93   106 - 109   2002.10

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  • 気温を用いた融雪量の簡易推定方法

    河島克久, 飯倉茂弘, 杉山友康, 藤井俊茂

    JREA   45 ( 9 )   28624 - 28627   2002.9

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  • 画像を用いた車両床下の着氷雪量の評価

    飯倉茂弘, 河島克久, 遠藤徹, 藤井俊茂

    鉄道総研報告   16 ( 8 )   47 - 52   2002.8

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  • 凍結地盤の融解過程における水分と強度の変化

    杉山友康, 河島克久, 飯倉茂弘, 布川修, 斎藤善樹

    鉄道総研報告   16 ( 8 )   41 - 46   2002.8

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  • 気温を用いた融雪量の簡易推定方法の開発

    河島克久, 飯倉茂弘, 杉山友康, 遠藤徹, 藤井俊茂

    鉄道総研報告   16 ( 8 )   35 - 40   2002.8

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  • Preventive measures against snow for high-speed train operation in Japan Reviewed

    Toshishige Fujii, Katsuhisa Kawashima, Shigehiro Iikura, Toru Endo, Ryoji Izunami

    Cold Regions Engineering: Cold Regions Impacts on Transportation and Infrastructure   448 - 459   2002.5

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  • Investigations into the avalanche disaster of snow blocks in Mt. Asakusa, June 2000. Reviewed

    IZUMI Kaoru, KOBAYASHI Shun'ichi, NAGASAKI Tomoharu, ENDO Yasoichi, YAMANOI Katsumi, ABE Osamu, KOSUGI Kenji, YAMADA Yutaka, KAWASHIMA Katsuhisa, ENDO Toru

    Journal of the Japanese Association of Snow and Ice   64 ( 1 )   39 - 47   2002.1

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    DOI: 10.5331/seppyo.64.39

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  • 2001年2月9日の新潟県南魚沼郡塩沢町鎌倉沢における河川内積雪水当量および積雪層構造

    堀江宏伸, 小林俊一, 和泉薫, 河島克久, 遠藤徹, 小倉康子

    新潟大学積雪地域災害研究センター研究年報   23   17 - 26   2001.12

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  • ポールの振動を用いた雪崩規模の評価方法の検証 Reviewed

    飯倉茂弘, 河島克久, 遠藤徹, 藤井俊茂

    寒地技術論文・報告集   17   90 - 94   2001.11

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  • 鉄道車両の床下に成長する着氷雪の物理的性状について Reviewed

    河島克久, 飯倉茂弘, 遠藤徹, 冨永哲男, 藤井俊茂

    寒地技術論文・報告集   17   110 - 114   2001.11

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  • デジタル式荷重測定器を利用した積雪の硬度測定 Reviewed

    竹内由香里, 納口恭明, 河島克久, 和泉薫

    雪氷   63 ( 5 )   441 - 449   2001.9

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    DOI: 10.5331/seppyo.63.441

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  • Snow avalanche detecting system using a vibration sensor

    Shigehiro Iikura, Katsuhisa Kawashima, Toru Endo, Toshishige Fujii

    Quarterly Report of Railway Technical Research Institute   42 ( 2 )   63 - 64   2001.5

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  • 光学式積雪深計を使用した積雪深データの報告

    加藤務, 石丸民之永, 小林俊一, 河島克久, 星義広

    寒地技術論文・報告集   116   531 - 536   2000.11

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  • 積雪循環曲線の精密化とその融雪災害予測 Reviewed

    小林俊一, 和泉薫, 河島克久, 藤井俊茂, 佐藤篤司, 阿部修, 石丸民之永, 加藤務, 丸山敏介

    寒地技術論文・報告集   16   112 - 119   2000.11

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  • 高速度域における氷-モルタルおよび氷-氷の動摩擦係数の測定 Reviewed

    藤井俊茂, 河島克久, 遠藤徹, 今井俊昭, 飯倉茂弘

    寒地技術論文・報告集   16   167 - 174   2000.11

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  • 雪泥流発生時の流出量の事例解析 Reviewed

    堀江宏伸, 小林俊一, 和泉薫, 河島克久

    寒地技術論文・報告集   16   66 - 73   2000.11

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  • 鉄道用排雪式高架橋の開発 Reviewed

    藤井俊茂, 泉並良二, 飯倉茂弘, 河島克久, 遠藤徹

    寒地技術論文・報告集   16   291 - 297   2000.11

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  • 軌道用少水量散水消雪方式の開発 Reviewed

    藤井俊茂, 泉並良二, 飯倉茂弘, 河島克久, 遠藤徹

    寒地技術論文・報告集   16   466 - 470   2000.11

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  • 新幹線の雪の舞い上がり現象に関する実験的研究 Reviewed

    藤井俊茂, 河島克久, 遠藤徹

    寒地技術論文・報告集   16   414 - 420   2000.11

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  • Snow avalanche detection and alarm system using a vibration sensor Reviewed

    IIKURA Shigehiro, KAWASHIMA Katsuhisa, ENDO Toru, FUJII Toshishige

    Journal of the Japanese Association of Snow and Ice   62 ( 4 )   367 - 374   2000.7

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    To improve the safety of railways in snowy regions, a new system for detecting avalanches has been designed and developed. This system consists of a detecting unit, a signal conversion device and a display device. The detecting unit installed on a slope subject to avalanches detects vibrations due to the avalanche impact with a built-in vibration sensor. Operating tests of the new system were carried out using an artificial avalanche chute 20 m in length. The tests revealed that the system can not only detect the occurrences of avalanche but also judge the scale of the avalanche. In addition, field tests in Shiaidani valley in Kurobe Gorge showed that the system is of much practical use, because it could accurately detect the occurrence of natural powder snow avalanches throughout the winter season of 1998/99.

    DOI: 10.5331/seppyo.62.367

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  • 表層コア掘削による利尻山の多年性雪渓の雪氷学的調査

    河島克久, 納口恭明, 小林俊市, 佐藤雅彦

    利尻研究   19   79 - 87   2000.3

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  • Impact load of ejected snow onto side wall of viaduct by a track motorcar rotary

    Ryoji Izunami, Toshishige Fujii, Shigehiro Iikura, Katsuhisa Kawashima, Toru Endo, Mitsugi Okuda, Katsuya Okada

    Proceedings of the 7th International Symposium on Cold Region Development   358 - 361   2000.1

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  • Snow melting method with a small quantity of water sprinkled on railway slab tracks

    Ryoji Izunami, Toshishige Fujii, Shigehiro Iikura, Katsuhisa Kawashima, Toru Endo, Mitsugi Okuda, Katsuya Okada

    Proceedings of the 6th International Symposium on Cold Region Development   354 - 357   2000.1

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  • 雪崩発生検知システムの開発

    河島克久, 飯倉茂弘, 遠藤徹, 藤井俊茂

    JREA   42 ( 12 )   26567 - 26570   1999.12

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  • 雪泥流(slushflow)の特性に関する研究 Reviewed

    小林俊一, 和泉薫, 石丸民之永, 加藤務, 木村忠志, 河島克久, 藤井俊茂, 佐藤篤司

    寒地技術論文・報告集   15   366 - 369   1999.11

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  • 寒冷地の鉄道高架橋における効率的な雪処理方法の検討

    藤井俊茂, 河島克久, 飯倉茂弘, 泉並良二, 遠藤徹

    新線路   53 ( 11 )   11 - 14   1999.11

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  • 流量計方式型「融雪・降水量計」.寒地技術論文・報告集

    石丸民之永, 加藤務, 木村忠志, 丸山敏介, 小林俊一, 横山宏太郎, 河島克久, 藤井俊茂, 佐藤篤司

    寒地技術論文・報告集   15   800 - 803   1999.11

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  • Transformational processes from firn to ice in perennial snow patches of Japan and in the wet-snow zone of temperate glaciers

    Katsuhisa Kawashima

    博士学位論文(新潟大学)   1998.3

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  • Large-scale trench on the Shirouma-daisekkei snow patch, the Northern Japanese Alps, formed by debris flow Reviewed

    MATSUMOTO Takane, KAWASHIMA Katsuhisa, IZUMI Kaoru, NOHGUCHI Yasuaki

    Journal of the Japanese Association of Snow and Ice   60 ( 1 )   37 - 46   1998.1

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    Owing to severe rainfall on 11 and 12 July, 1995, a debris flow occurred and flowed down on the Shirouma-daisekkei snow patch, the Northern Japanese Alps. As a result, the snow patch was widely covered with debris flow deposits, the debris flow incised the snow patch, and a large-scale trench (1.3 km in length, 6-8 m in width, 10-20 m in depth) was formed. The trench was formed at the center of debris covered area, from the uppermost part to near the terminus of the snow patch. The width of the trench became more than 15 m on 18 October as a result of continuous snowmelt in summer and the area of the trench reached 20% of the entire snow patch area. Internal structures of the snow patch, such as firn aquifer and dirt layers which were composed of sand and gravel, were recognized on the side walls of this trench. However, no ice body was found on the side walls.<BR>Formation processes of this trench are discussed on the bases of distribution and shape of the trench and debris covered area which were obtained from aerial photographs and field observations. It is concluded that the trench was formed since the debris flow eroded firn layers. On this snow patch, the similar kind trench was also formed in 1952. In order to understand formation and maintenance processes of perennial snow patches, it must be important to evaluate such influences of debris flow on snow patches.

    DOI: 10.5331/seppyo.60.37

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  • A portable calorimeter for measuring liquid-water content of wet snow Reviewed

    K Kawashima, T Endo, Y Takeuchi

    ANNALS OF GLACIOLOGY, VOL 26, 1998   26   103 - 106   1998

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    In order to facilitate the measurement of liquid-water content of snow in high mountains, a portable calorimeter named "Endo-type snow-water content meter" tvas developed. It is composed of a metal-coated container made of insulating materials and a lid of the container with a small-thermistor thermometer. Its strong points are its light weight, small size and easy fabrication with cheap materials. The total weight of the device is as light as 250 g, which is less than 10% of the snow-water content meter widely used in Japan (Akitaya-type snow-water content meter). The results of experiments have revealed that the device is capable of measuring the liquid-water content within 2 minutes with an accuracy of 2% by weight.

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  • Measurement of snow-hardness distribution Reviewed

    Y Takeuchi, Y Nohguchi, K Kawashima, K Izumi

    ANNALS OF GLACIOLOGY, VOL 26, 1998   26   27 - 30   1998

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    Distributions of snow hardness minutely measured with a handy-type digital load-gauge (push-pull gauge) are demonstrated. This push-pull gauge is of compact design and is useful for precise measurement of tension and compression loads. It can measure the maximum strength of a snowpack when it is destroyed by the attachment pushed horizontally into the side of the pit. Because it takes only a few seconds for one measurement, snow-hardness distribution can be measured at very small space intervals more quickly and with less effort than by using any previous hardness meter, such as a rammsonde, Canadian gauge, Kinosita-type hardness meter, and so on.
    Snow-pit observations were made at Saiho, Sapporo and Minakami, Japan, in the winter seasons of 1996 and 1997. The snow hardness was measured with the push-pull gauge at regular intervals of 5 cm vertically and 10 cm horizontally. Some weak layers between harder layers could be detected with the push-pull gauge whereas they could nor be using the rammsonde. The hardness of snow was observed to be almost uniform horizontally before snowmelt. Once meltwater infiltrated into the snowpack, its distribution became heterogeneous. It was revealed that the hardness of the fine-grained compacted snow layer with grain-sizes less than 0.5 mm showed a high correlation with the fourth power of the snow density.

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  • Wind-induced accidents of train/vehicles in Japan and the countermeasures on Kansai airport line

    Toshishige Fujii, Katsuji Tanemoto, Tatsuo Maeda, Toshiaki Imai, Junkichi Ishihama, Katsuhisa Kawashima

    Proceedings of the 3rd World Congress on Railway Research ’97   E   523 - 529   1997.12

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  • Anti-snow-accumulation effect of artificial air flow blown over U-shaped structure

    Toshishige Fujii, Toshiaki Imai, Toru Endo, Katsuhisa Kawashima

    Proceedings of the 5th International Symposium on Cold Region Development   541 - 544   1997.12

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  • 祝瓶山桑住平の大規模雪崩

    矢野勝俊, 阿部修, 小杉健二, 佐藤篤司, 納口恭明, 小林俊市, 山田穣, 河島克久, 和泉薫, 遠藤八十一, 小南裕志, 伊藤陽一, Stefan Keller

    東北地域災害科学研究   33   227 - 230   1997.12

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  • 融雪氷剤の散布による雪氷表面の硬化 Reviewed

    小林俊市, 水野悠紀子, 鎌田慈, 河島克久, 納口恭明

    寒地技術論文・報告集   13   41 - 45   1997.11

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  • Patterns of snow area and no snow area ”yukigata”

    Yasuaki Nohguchi, Katsuhisa Kawashima, Yukari Takeuchi, Toshiichi Kobayashi, Yutaka Yamada, Yasoichi Endo, Kaoru Izumi

    Proceedings of International Conference “Avalanches and Related Subjects   23 - 28   1997.9

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  • Formation processes of ice body revealed by the internal structure of perennial snow patches in Japan Reviewed

    Katsuhisa Kawashima

    Bulletin of Glacier Research   15   1 - 10   1997.7

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  • A measuring system for snow depth profiles in Maglev guideway using to light cross section method Reviewed

    K Kawashima, S Iikura, T Endo, T Fujii, T Imai, T Nakane

    SNOW ENGINEERING: RECENT ADVANCES   105 - 108   1997

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    Aiming at controlling the running of Maglev (magnetically levitated) vehicles under snowfall, a measuring system for profiling snow depths in a U-shaped Maglev guideway by image processing was developed using the light cross section method. This system, composed of control and data analysis devices, a CCD-camera unit and a semiconductor laser scanning unit, measures the snow depth at 80 points in 2 minutes for every snow cover profile 4.6 min width. The field tests revealed that the system was capable of measuring the profiles with an accuracy of +/-10 mm except when the snow cover was saturated with water, irrespective of the measuring conditions such as the weather and the type of snow.

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  • Experimental studies on the transformation from firn to ice in the wet-snow zone of temperate glaciers Reviewed

    K Kawashima, T Yamada

    ANNALS OF GLACIOLOGY, VOL 24, 1997   24   181 - 185   1997

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    The densification of water-saturated firn, which had formed just above the firn-ice transition in the wet-snow zone of temperate glaciers, was investigated by compression tests under pressures ranging from 0.036 to 0.173 MPa, with special reference to the relationship between densification rate, time and pressure. At each test, the logarithm of the densification rate was proportional to the logarithm of the time, and its proportionality constant increased exponentially with increasing pressure. The time necessary for ice formation in the firn aquifer was calculated using the empirical formula obtained from the tests. Consequently, the necessary time decreased exponentially as the pressure increased, which shows that the transformation from firn to ice can be completed within the period when the firn aquifer exists, if the overburden pressure acting on the water-saturated firn is above 0.12-0.14 MPa. This critical value of pressure was in good agreement with the overburden pressure obtained from depth-density curves of temperate glaciers. It was concluded that the depth of firn-ice transition was self-balanced by the overburden pressure to result in the concentration between 20 and 30 m.

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  • Slip tests between the surfaces of snow/ice and some kinds of shoes Reviewed

    T Kobayashi, Y Nohguchi, K Kawashima, T Ikarashi, T Nakamura, K Horiguchi, Y Mizuno

    SNOW ENGINEERING: RECENT ADVANCES   77 - 80   1997

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    This paper describes slipperiness for pedestrians on a snowy or icy surface of a road. In order to investigate the coefficients of static friction between the soles of some kinds of shoes and snowy or icy surfaces, slip tests were made in a coldroom with the examinee wearing various shoes. As a result, the coefficients of static friction for four kinds of shoes, i.e., low shoes with flat soles, low shoes with notched soft soles, winter high shoes and rubber boots were calculated. In addition, it was found that sprinkling sand on an icy surface was effective in increasing the coefficient of static friction mu s below 0 degrees C.

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  • Remaining snow patterns in mountains, Yukigata, as a scene in spring Reviewed

    Y Nohguchi, K Kawashima, T Kobayashi, Y Yamada, Y Endo, K Izumi

    SNOW ENGINEERING: RECENT ADVANCES   549 - 552   1997

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    Remaining snow surrounded by a ground surface and a ground surface surrounded by remaining snow are called yukigata in Japan. Some of famous yukigatas have a name and oral literature. There are more than 300 famous yukigatas. The yukigatas have been used mainly as a kind of calendar for agriculture in most of the snowy regions in Japan since long ago. Recently, however, the yukigatas are being forgotten because the primitive ways for agriculture are disappearing with the progress of agricultural technology. On the other hand, the formation of yukigata is governed by the topography of the mountains and snow accumulation and snowmelt. Therefore, yukigatas have information on topographical features, distribution of mountain snow and climate change. Moreover, it is possible to use yukigata as sightseeing resources or material for nature education.

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  • 熱量式による簡易積雪含水率計の試作

    河島克久, 遠藤徹, 竹内由香里

    防災科学技術研究所研究報告   57 ( 57 )   71 - 75   1996.12

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  • Similarity of avalanche experiments by light particles

    Yasuaki Nohguchi, koichi Nishimura, Toshiichi Kobayashi, Koyuru Iwanami, Katsuhisa Kawashima, Yutaka Yamada, Hideomi Nakamura, Kenji Kosugi, Osamu Abe, Atsushi Sato, Yasoichi Endo, Yuji Kominami, Kaoru Izumi

    Proceedings of the International Symposium INTERPRAEVENT 1996   2   147 - 156   1996.12

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  • 秋田県泥湯温泉の雪崩災害調査報告

    阿部修, 小杉健二, 納口恭明, 河島克久

    東北の雪と生活   11   33 - 36   1996.12

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  • 混合機を用いた雪の造粒 Reviewed

    小林俊市, 納口恭明, 河島克久, 西村浩一, 石井吉之, 伊藤陽一

    寒地技術論文・報告集   12   208 - 211   1996.11

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  • 鋸山の雪形「猫雪」の発生条件

    小林俊市, 河島克久, 竹内由香里, 納口恭明, 加藤正明

    寒地技術論文・報告集   12   658 - 662   1996.11

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  • 雪形のスケールについて

    納口恭明, 遠藤八十一, 和泉薫, 河島克久, 小林俊市, 竹内由香里, 岩波越, 鈴木嘉明

    寒地技術論文・報告集   12   654 - 657   1996.11

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  • 雪形「川の字」の諸特性と農事暦としての有用性について Reviewed

    河島克久, 小林俊市, 納口恭明

    寒地技術論文・報告集   12   36 - 41   1996.11

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  • 長岡にみられる雪形「川の字」の出現期間の経年変化について Reviewed

    河島克久, 小林俊市, 納口恭明

    寒地技術論文・報告集   11   264 - 268   1995.11

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  • 歩行者の雪氷路面上での転倒に関する基礎研究 Reviewed

    小林俊市, 納口恭明, 河島克久

    寒地技術論文・報告集   11   476 - 479   1995.11

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  • Speed limit control of high-speed trains in snowy regions

    Katsuhisa Kawashima, Toru Endo, Toshishige Fujii

    Japanese Railway Engineering   134 ( 134 )   23 - 26   1995.9

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  • 新幹線の雪の舞い上がり防止に関する基礎的研究

    河島克久, 遠藤徹, 藤井俊茂

    鉄道総研報告   8 ( 7 )   7 - 12   1994.7

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  • REGIONAL DIVISION OF SNOW-DEPOSITIONAL ENVIRONMENTS AND METAMORPHISM OF SNOW COVER IN PLAIN AREAS ALONG THE JAPAN SEA COAST Reviewed

    K KAWASHIMA, T YAMADA, G WAKAHAMA

    SNOW AND ICE COVERS: INTERACTIONS WITH THE ATMOSPHERE AND ECOSYSTEMS   223 ( 223 )   187 - 196   1994

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  • INVESTIGATIONS OF INTERNAL STRUCTURE AND TRANSFORMATIONAL PROCESSES FROM FIRN TO ICE IN A PERENNIAL SNOW PATCH Reviewed

    K KAWASHIMA, T YAMADA, G WAKAHAMA

    ANNALS OF GLACIOLOGY, VOL 18, 1993   18   117 - 122   1993

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  • 新幹線軌道の軌間内における列車風の測定

    藤井俊茂, 遠藤徹, 今井俊昭, 河島克久

    鉄道総研報告   5 ( 10 )   19 - 24   1991.10

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  • 鉄道雨量計からみたレーダー・アメダス雨量合成値の特性

    佐溝昌彦, 河島克久, 村石尚

    鉄道総研報告   5 ( 2 )   27 - 34   1991.2

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  • 積雪特性からみた日本海沿岸平野部の堆積環境区分

    河島克久, 山田知充

    低温科学物理篇   47   15 - 24   1988.12

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  • 日本海沿岸平野部の広域積雪調査II

    河島克久, 山田知充, 秋田谷英次, 和泉薫, 川田邦夫, 井上治郎

    低温科学物理篇,資料集   47   11 - 25   1988.12

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  • 日本海沿岸積雪地域の堆積環境区分とその積雪特性

    河島克久, 山田知充, 若浜五郎

    低温科学物理篇   46   1 - 13   1987.12

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  • 日本海沿岸平野部の広域積雪調査

    河島克久, 山田知充, 若浜五郎

    低温科学物理篇,資料集   46   19 - 24   1987.12

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  • 大雪山ヒサゴ沼のスノージャム調査

    河島克久, 山田知充, 若浜五郎

    低温科学物理篇,資料集   46   39 - 43   1987.12

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  • The hydrological data of Langtang Valley, Nepal Himalayas

    Yoshihiro Fukushima, Katsuhisa Kawashima, Masakazu Suzuki, Takeshi Ohta, Hideaki Motoyama, Hiroshi Kubota, Tomomi Yamada, Om Ratna Bajracharya

    Bulletin of Glacier Research   5   115 - 120   1987.3

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  • Stream water temperature observations in Langtang Khola, Nepal Himalayas Reviewed

    Masakazu Suzuki, Yoshihiro Fukushima, Katsuhisa Kawashima, Takeshi Ohta, Hideaki Motoyama, Hiroshi Kubota

    Bulletin of Glacier Research   5   25 - 28   1987.3

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  • Runoff characteristics in three glacier-covered watersheds of Langtang Valley, Nepal Himalayas Reviewed

    Yoshihiro Fukushima, Katsuhisa Kawashima, Masakazu Suzuki, Takeshi Ohta, Hideaki Motoyama, Hiroshi Kubota, Tomomi Yamada, Om Ratna Bajracharya

    Bulletin of Glacier Research   5   11 - 18   1987.3

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  • Meteorological features in Langtang Valley, Nepal Himalayas, 1985-1986 Reviewed

    Shuhei Takahashi, Hideaki Motoyama, Katsuhisa Kawashima, Yuki Morinaga, Katsumoto Seko, Hajime Iida, Hiroshi Kubota, Naveen Ratna Turadahr

    Bulletin of Glacier Research   5   35 - 40   1987.3

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  • Suspended sediment yield in a glaciated watershed of Langtang Valley, Nepal Himalayas Reviewed

    Takeshi Ohta, Yoshihiro Fukushima, Masakazu Suzuki, Hideaki Motoyama, Katsuhisa Kawashima, Hiroshi Kubota

    Bulletin of Glacier Research   5   19 - 24   1987.3

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  • Summary of meteorological data at Kyangchen in Langtang Valley, Nepal Himalayas, 1985-1986

    Shuhei Takahashi, Hideaki Motoyama, Katsuhisa Kawashima, Yuki Morinaga, Katsumoto Seko, Hajime Iida, Hiroshi Kubota, Naveen Ratna Turadahr

    Bulletin of Glacier Research   5   121 - 128   1987.3

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Books

  • 村上市災害記録誌「令和4年8月3日からの大雨による災害」

    片岡香子, 河島克久, 西井稜子, 松元高峰( Role: Joint author ,  「令和4年8月3日からの大雨」による災害の特徴と教訓)

    新潟県村上市  2024.3 

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  • 自然災害科学・防災の百科事典

    河島克久( Role: Contributor ,  鉄道・交通の雪氷災害)

    丸善出版  2022.1 

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  • 南岸低気圧による大雪 III:雪氷災害と予測可能性(気象研究ノート241号)

    河島克久( Role: Contributor ,  南岸低気圧による関東甲信地方の多雪地域の積雪水量と積雪特性(河島克久・和泉薫・伊豫部勉・松元高峰),南岸低気圧通過時に発生する森林の冠雪害(松元高峰・伊豫部勉・河島克久))

    日本気象学会  2019.12 

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  • 新版雪氷辞典

    青木輝夫, 秋田谷英次, 秋山一弥, 上田豊, 河島克久( Role: Joint author)

    古今書院  2014.3  ( ISBN:9784772241731

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  • 日本歴史災害事典

    荒牧重雄, 池谷浩, 石川正純, 石橋克彦, 河島克久( Role: Contributor ,  593~597頁「三八豪雪」,646~650頁「五六豪雪」,736~737頁「平成18年豪雪」)

    吉川弘文館  2012.6  ( ISBN:9784642014687

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  • 地震災害への備えを考える-中越地震・中越沖地震で学んだこと-

    伊藤忠雄, 宮下純夫, 五十嵐由利子, 河島克久( Role: Joint author)

    新潟日報事業社  2009.10  ( ISBN:9784861323638

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  • 雪崩対策の基礎技術2007

    遠藤八十一, 和泉薫, 山口悟, 河島克久, 町田誠, 上石勲, 中山建生( Role: Joint editor ,  第4章 雪崩検知技術)

    日本雪氷学会  2007.12 

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    Responsible for pages:39-43   Language:Japanese Book type:Scholarly book

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  • 山岳雪渓の崩壊現象の解明と雪渓崩落事故防止対策の提言

    河島克久( Role: Sole author)

    財団法人日本積雪連合  2007.8 

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  • 新潟県中越地震 新潟の大地 災害と生活

    高濱信行, 風岡修, 卜部厚志, 河島克久, 和泉薫, 安井賢( Role: Joint author ,  十九年ぶりの豪雪が被災地を襲う/河島克久,和泉薫/131-159頁)

    新潟日報事業者  2006.11  ( ISBN:4861321905

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  • 雪と氷の事典

    日本雪氷学会( Role: Joint author ,  山地積雪/山田知充,河島克久/122-129頁)

    朝倉書店  2005.2  ( ISBN:9784254161175

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  • 2005除雪・防雪ハンドブック(防雪編)

    日本建設機械化協会, 雪センター( Role: Joint author ,  冬の気象/河島克久/24-31頁)

    日本建設機械化協会・雪センター  2004.12 

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  • 2005除雪・防雪ハンドブック(除雪編)

    日本建設機械化協会( Role: Joint author ,  冬の気象/河島克久/32-39頁)

    日本建設機械化協会  2004.12 

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  • 塩澤町史 通史編 上巻

    塩沢町( Role: Joint author ,  雪と災害/河島克久,笛木孝雄/65-71頁)

    塩沢町  2002.12 

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  • 防災事典

    日本自然災害学会( Role: Joint author ,  積雪調査など5項目執筆/河島克久/214,215,218,245,372頁)

    築地書館  2002.8  ( ISBN:9784806712336

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  • 中谷宇吉郎ゆかりの地

    東隆眞, 表英治, 河島克久, 神田健三( Role: Joint author ,  鉄道と雪)

    中谷宇吉郎雪の科学館友の会  2000.7 

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MISC

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Presentations

  • Characteristics of SAR backscatter amplitudes corresponding to the seasonal snow-depth variation at snow-buried cubic corner reflectors installed in Nagaoka, Japan

    Hiroto Nagai, Satoru Yamaguchi, Sojiro Sunako, Katsuya Yamashita, Katsuhisa Kawashima, Ryuta Hasatani

    AGU Fall Meeting 2021 

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    Event date: 2021.12

    Language:English   Presentation type:Poster presentation  

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  • Sensitivity analysis of backscatter amplitude at snow-buried corner reflectors using C-/L-band SARs

    Hiroto Nagai, Katsuhisa Kawashima, Katsuya Yamashita, Satoru Yamaguchi, Sojiro Sunako, Ryuta Hasatani, Yuuki Sekiya, Shunsuke Nakayama, Shotaro Ohkawa, Takamasa Uehara

    AGU Fall Meeting 2020  2020.12 

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    Event date: 2020.12

    Presentation type:Poster presentation  

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  • Volcano-snow interaction and lahar hazard assessment following the 2018 eruption at Kusatsu-shirane volcano

    Kataoka Kyoko S, Tsunematsu Kae, Matsumoto Takane, Urabe Astushi, Kawashima Katsuhisa, Nagahashi Yoshitaka

    PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN  2018  The Volcanological Society of Japan

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    Event date: 2018

    Language:Japanese  

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  • 温帯雪氷圏における降積雪変動と雪氷災害の変容の解明に向けて

    河島克久, 松浦純生, 松元高峰, 伊豫部勉, 平松和彦, 本田明治, 立花義裕

    雪氷研究大会(2017・十日町)、B2-1  2017 

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    Event date: 2017

    Language:Japanese  

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  • Relationship between Snow Depth and Extent of Damage by Snow Avalanche in Langtang induced by the 2015 Gorkha Earthquake

    伊藤陽一, 西村浩一, 藤田耕史, 山口悟, 和泉薫, 河島克久, 上石勲

    雪氷研究大会講演要旨集(Web)  2016 

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    Event date: 2016

    Language:Japanese  

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  • Estimation of the distribution for snow water equivalent using numerical snowpack model

    Hirashima Hiroyuki, Iyobe Tsutomu, Kawashima Katsuhisa, Kamiishi Isao

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research  2016  The Japanese Society of Snow and Ice / Japan Society for Snow Engineering

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    Event date: 2016

    Language:Japanese  

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  • Estimation of the distribution for snow water equivalent using numerical snowpack model

    平島寛行, 伊豫部勉, 伊豫部勉, 河島克久, 上石勲

    雪氷研究大会講演要旨集(Web)  2016 

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    Event date: 2016

    Language:Japanese  

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  • 最近の雪氷災害と日本雪氷学会の取り組み

    上石勲, 河島克久

    日本地球惑星科学連合大会予稿集(Web)  2015 

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    Event date: 2015

    Language:Japanese  

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  • ネパール地震で誘発された雪崩―序報―

    上石勲, 和泉薫, 河島克久, 山口悟

    日本地球惑星科学連合大会予稿集(Web)  2015 

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    Event date: 2015

    Language:Japanese  

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  • 2014年2月の関東甲信地方を中心とした広域雪氷災害に対する調査研究活動の概要

    河島克久, 和泉薫, 上石勲, 福原輝幸

    雪氷研究大会講演要旨集  2014.9 

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    Event date: 2014.9

    Language:Japanese  

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  • 2014年2月の関東甲信地方を中心とした広域雪氷災害に対する調査研究活動の概要

    河島克久, 和泉薫, 上石勲, 福原輝幸

    日本自然災害学会学術講演会講演概要集  2014 

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    Event date: 2014

    Language:Japanese  

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  • 気温・日射量を指標とした融雪強度モデルの山岳地への適用化に関する研究(1)―地点によるモデル係数の相違―

    河島克久, 伊豫部勉, 松元高峰, 佐藤亮太, 鈴木啓助, 上石勲, 飯田肇, 外狩麻子, 栗原靖

    雪氷研究大会講演要旨集  2013.9 

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    Event date: 2013.9

    Language:Japanese  

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  • 富士山北斜面で2013年4月に発生したスラッシュ雪崩災害について

    伊豫部勉, 和泉薫, 河島克久, 上石勲, 安間荘

    日本自然災害学会学術講演会講演概要集  2013 

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    Event date: 2013

    Language:Japanese  

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  • 大佐渡山地のスギ原生林における雲霧の発生頻度とその成因

    坂井浩紀, 河島克久, 伊豫部勉, 本間航介

    日本水文科学会学術大会発表要旨集  2011.9 

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    Event date: 2011.9

    Language:Japanese  

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  • Void Characteristics of Snow Using a Capillary Tube Model with Uniform Diameter “ Relationship between Tortuosity and Stagnation Zone ”

    Hayato Arakawa, Kaoru Izumi, Katsuhisa Kawashima, Yoshiyuki Ishii

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research  2010  公益社団法人 日本雪氷学会/日本雪工学会

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    Event date: 2010

    Language:English  

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  • Quantitative classification of snow type using intrinsic permeability and specific surface area III - Classification reflecting snow microstructure -

    Hayato Arakawa, Hayato Arakawa, Kaoru Izumi, Katsuhisa Kawashima, Toshiyuki Kawamura

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research  2009  公益社団法人 日本雪氷学会/日本雪工学会

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    Event date: 2009

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  • Estimation of specific surface area and permeability using a portable load gauge

    Hayato Arakawa, Kaoru Izumi, Katsuhisa Kawashima, Toshiyuki Kawamura

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research  2009  公益社団法人 日本雪氷学会/日本雪工学会

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    Event date: 2009

    Language:English  

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  • 2008年2月に妙高・幕の沢で発生した大規模な乾雪表層雪崩の到達範囲と堆積量

    竹内由香里, 上石勲, 和泉薫, 河島克久, 山口悟, 宮崎伸夫, 平島寛行, 西村浩一, PODOLSKIY Evgeniy, 鈴木貴

    雪氷研究大会講演要旨集  2008.9 

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    Event date: 2008.9

    Language:Japanese  

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  • Study on grain-size and pore-size by run-length method

    Arakawa Hayato, Izumi Kaoru, Kawashima Katsuhisa, Kawamura Toshiyuki, Ozeki Toshihiro

    Preprints of the Annual Conference, Japanese Society of Snow and Ice  2007  公益社団法人 日本雪氷学会

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    Event date: 2007

    Language:Japanese  

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  • 広域積雪分布の把握による雪崩発生予測

    西村浩一, 平島寛行, 山口悟, 小杉健二, 佐藤篤司, 和泉薫, 河島克久, 鈴木啓助, 花岡正明, LEHNING Michael

    日本雪氷学会全国大会講演予稿集  2006.10 

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    Event date: 2006.10

    Language:Japanese  

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  • 航空写真による雪崩発生調査

    佐藤篤司, 平島寛行, 山口悟, 小杉健二, 西村浩一, 和泉薫, 河島克久, 鈴木啓助, 花岡正明, LEHNING Michael

    日本雪氷学会全国大会講演予稿集  2006.10 

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    Event date: 2006.10

    Language:Japanese  

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  • Snow type classification (II) by intrinsic permeability and specific surface area

    ARAKAWA HAYATO, OZEKI TOSHIHIRO, IZUMI KAORU, KAWASHIMA KATSUHISA, KAWADA KUNIO, KAWAMURA TOSHIYUKI

    Preprints of the Annual Conference, Japanese Society of Snow and Ice  2006  公益社団法人 日本雪氷学会

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    Event date: 2006

    Language:Japanese  

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  • 2004‐05年冬期新潟県中越地域で発生した雪崩災害

    和泉薫, 河島克久, 伊予部勉, 西村浩一, 山口悟, 町田敬, 上石勲, 新開龍三郎

    日本雪氷学会全国大会講演予稿集  2005.9 

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    Event date: 2005.9

    Language:Japanese  

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  • Database on avalanche accidents in Japan

    Izumi Kaoru, Kawashima Katsuhisa, Kamiishi Isao, Aida Kentaro

    Preprints of the Annual Conference, Japanese Society of Snow and Ice  2004  THE JAPANESE SOCIETY OF SNOW AND ICE

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    Event date: 2004

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  • なぜ大雪で大規模な車両の立ち往生が発生するのか?-実態と対策に向けた取り組み- Invited

    河島 克久

    第17回日本安全学教育研究会  2023.10 

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  • Slushflows induced by an extreme rain-on-snow event on 9 March 2018, Hokkaido, Japan Invited International conference

    Katsuhisa Kawashima, Tsutomu Iyobe, Takane Matsumoto, Ryuma Okita, Misaki Yoshizawa

    2018.12 

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  • Monitoring low-tree trunk strain during a snow season on an avalanche slope International conference

    Miyashita, A, Matsumoto, T, Kawashima, K, Katsushima, T

    International Snow Science Workshop 2018  2018.10 

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  • Study on friction characteristics of snow using rotary drum device

    Oda, K., Kawashima, K., Kobayashi,Y., Nakamura, K.

    International Snow Science Workshop 2018  2018.10 

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  • Transition of falling snow characteristics causing weak layer formation simulated by a numerical weather model, in avalanche disaster events on March 27, 2017 in Japan International conference

    Hashimoto, A, H. Motoyoshi, K. Nakamura, S. Yamaguchi, K. Kawashima, M. Niwano, and S

    European Geosciences Union General Assembly 2018  2018.4 

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  • Influence of a deciduous broad-leaved forest on snow-surface energy balance in Chilean Patagonia International conference

    Takane Matsumoto, Katsuhisa Kawashima, Tsutomu Iyobe

    International Symposium on Cryosphere and Biosphere  2018.3 

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  • Field observations on tipping of deciduous shrubs in snowpack on a steep slope in Niigata, central Japan: the mechanical interactions between shrubs and snowpack preventing snow gliding throughout the 2016/17 winter

    Takane Matsumoto, Katsuhisa Kawashima, Shun Watabe, Takafumi Katsushima, Ayana Miyashita, Fumichika Uno, Akihiko Sasaki, Motoshi Nishimura, Kyoko Kataoka

    International Symposium on Cryosphere and Biosphere  2018.3 

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  • Acceleration Processes of Snow Glide Prior to Full-Depth Avalanche Release on Shrub Slopes in the Temperate Heavy-Snow Region of Japan International conference

    Katsuhisa Kawashima, Tsutomu Iyobe, Takane Matsumoto

    International Snow Science Workshop  2016.10 

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  • Overview of in situ snow depth observations and data sources in Japan Invited International conference

    Kawashima, K, Iyobe, T

    Global Cryosphere Watch (GCW), CryoNet Asia Workshop  2016.2 

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  • Variations in snow glide rates prior to full-depth avalanche release on shrub slopes in the temperate heavy-snow region of Japan Invited International conference

    Kawashima, K, Iyobe, T, Matsumoto T

    International Symposium on Snow and avalanche  2015.12 

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  • Variation of slope solar radiation on ideal and real topography during snowmelt season International conference

    Fumichika Uno, Katsuhisa Kawashima, Tsutomu Iyobe, Hiroaki Kawase, Chieko Suzuki, Takao Yoshikane, Asako Togari, Fujio Kimura

    Asia Oceania Geosciences Society (AOGS) 11th Annual Meeting,  2014.7 

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  • 斜面における融雪と積雪底面流出量 Invited

    河島克久, 伊豫部勉, 外狩麻子

    第4回積雪モデルに関するワークショップ  2013.3  防災科学技術研究所雪氷防災研究センター

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:長岡市  

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  • Large-scale collapse events of perennial snow patches in Japan related to torrential rainfall International conference

    Katsuhisa Kawashima, Takane Matsumoto, Kaoru Izumi, Yasushi Kurihara

    8th Alexander von Humboldt International Conference, Natural Disasters, Global Change, and the Preservation of World Heritage Sites  2012.11  EGU

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    Language:English   Presentation type:Poster presentation  

    Venue:Cusco, Peru  

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  • Features of snow accretion damages caused by heavy snowfalls to Japanese cedar plantations in December 2009 and 2010 in the Niigata area, central Japan International conference

    Tsutomu Iyobe, Katsuhisa Kawashima, Kaoru Izumi

    8th Alexander von Humboldt International Conference, Natural Disasters, Global Change, and the Preservation of World Heritage Sites  2012.11  EGU

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    Venue:Cusco, Peru  

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  • Estimation of outflow from the bottom of a snowpack with a simple combined snowmelt-percolation model for prevention of snowmelt-induced hazards International conference

    Takane Matsumoto, Tsutomu Iyobe, Katsuhisa Kawashima, Asako Togari, Makoto Shimamura

    8th Alexander von Humboldt International Conference, Natural Disasters, Global Change, and the Preservation of World Heritage Sites  2012.11  EGU

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    Language:English   Presentation type:Poster presentation  

    Venue:Cusco, Peru  

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  • 日本の多年性雪渓における氷体形成機構-温暖氷河との共通点・相違点- Invited

    河島克久

    公開シンポジウム「日本の多年性雪渓と氷河-これまでの研究と今後の展望-」  2012.6  日本雪氷学会氷河情報センター

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:富山市  

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  • Dependence of tensile fracture strength of high-density wet snow on density and water content International conference

    Kawashima, K, Kurihara, Y, Izumi, K

    International Symposium on Snow, Ice and Humanity in a Changing Climate  2010.6 

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  • Study on the formation and preservation processes of basal ice at Kohri-dani, Kusatsu town, Gunma Prefecture, Japan International conference

    Yamaguchi, K, Izumi, K, Kawashima, K

    International Symposium on Snow, Ice and Humanity in a Changing Climate  2010.6 

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  • Density metamorphosis of surface snow due to water sprinkling International conference

    Shishido, M, Kurihara, Y, Kamata, Y, Endo, T, Iikura, S, Kawashima, K, Fujii, T

    9th International Symposium on Cold Region Development  2010.6 

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  • Performance confirmation tests for a snow melting system using water sprinkling on the extended section of the Tohoku Shinkansen line International conference

    Noguchi, M, Kobayashi, H, Kikuchi, T, Kawashima, K, Iikura, S, Fujii, T, Iyobe, T

    9th International Symposium on Cold Region Development  2010.6 

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  • Estimation of outflow from the bottom of snowpack in a mountainous region in central Japan with a simple combined snowmelt-percolation model International conference

    Matsumoto, T, Kawashima, K, Togari, A, Shimamura, M

    Joint Meteorological, Oceanic and Cryospheric Assembly for 2009 (MOCA-09)  2009.7 

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  • Study on snow type quantification by using specific surface area and intrinsic permeability International conference

    Arakawa, H, Izumi, K, Kawashima, K, Kawamura, T

    International Snow Science Workshop  2008.9 

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  • Estimation of outflow from the bottom of snowpack in a mountainous region in central Japan with a simple combined snowmelt-percolation model International conference

    Shoji, A, Izumi, K, Kawashima, K, Nishida, Y

    6th International Conference on Snow Engineering.  2008 

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  • Hydrological backgrounds that cause slushflow events in the temperate heavy-snow region of Japan International conference

    Kawashima, K, Izumi, K, Iyobe, T, Nozaki, M

    International Symposium on Snow Science  2007.9 

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  • Development of a system for measuring the volume of snow-accretion to running train car bodies International conference

    Shishido, M, Iikura, S, Fujii, T, Endo, T, Kamata, Y, Kawashima, K

    12th International Workshop on Atmospheric Icing on Structure  2007 

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  • Actual state of snow avalanche disaster in the railway field in Japan and development of avalanche detecting system International conference

    Iikura, S, Kawashima, K, Endo, T, Fujii, T, Okada, K

    European Geosciences Union, General Assembly  2005.4 

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  • Snow melting tests using sprinkled water for the extended section of Tohoku Shinkansen line International conference

    Fujii, T, Kawashima, K, Iikura, S, Nagoshi, J, Kobayashi, H, Tokura, K, Okada, K

    7th International Symposium on Cold Region Development  2004.9 

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Industrial property rights

  • 斜面給水量モニタリング装置

    河島克久, 伊豫部勉, 太田麻子, 島村誠, 森島啓行, 浅井隣一, 佐藤幸男

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    Application no:2013-59225  Date applied:2013.3

    Announcement no:特開2014-185871  Date announced:2014.10

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Works

  • 雪による車両滞留イベントデータベース

    村田晴彦, 河島克久

    2022.3

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    Work type:Database science  

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  • 電子解説書「霧の森 大佐渡山地のスギ原生林」(DVD)

    河島克久, 伊豫部勉

    2011.2

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    Work type:Educational material  

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  • 雪渓崩落災害データベース(CD-R)

    河島克久, 栗原靖, 和泉薫

    2009.12

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    Work type:Educational material  

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  • 新潟県の自然災害を知ろう(DVD)

    卜部厚志, 河島克久

    2007.5

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    Work type:Educational material  

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Awards

  • 論文賞

    2023.9   公益社団法人日本雪氷学会   利尻山における雪崩涵養型雪渓の内部構造と氷化過程

    井上崚,河島克久,松元高峰,佐藤雅彦

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  • 技術賞

    2021.6   日本雪工学会   屋根雪おろし判断のための「雪おろシグナル」の開発と運用

    平島寛行,伊豫部勉,河島克久,佐野浩彬,本谷研

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  • 寒地技術賞(産業部門)

    2020.11   一般社団法人北海道開発技術センター   実車試験による大雪時のスタック発生メカニズム及びタイヤチェーン装着効果の解明

    藤本明宏, 河島克久

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  • 寒地技術賞(学術部門)

    2018.12   一般社団法人北海道開発技術センター   アメダス観測値を用いた任意地点の積雪底面流出量の推定

    飯倉茂弘, 佐藤亮太, 高橋大介, 鎌田慈, 宍戸真也, 河島克久, 松元高峰, 伊豫部勉

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  • 論文賞

    2017.9   公益社団法人日本雪氷学会   新潟県における年最大積雪深および積雪期間の長期変動解析

    柴田有貴, 河島克久, 鈴木博人

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  • 寒地技術賞(産業部門)

    2011.11   社団法人北海道開発技術センター   寒冷地の新幹線における散水消雪方式の適用限界把握

    野口守, 小林等, 飯倉茂弘, 河島克久, 伊豫部勉, 藤井俊茂

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

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  • 論文賞

    2009.10   社団法人日本雪氷学会   季節積雪における体積比表面積と微細構造との関係

    荒川逸人, 和泉薫, 河島克久, 河村俊行

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

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  • 寒地技術賞(計画部門)

    2001.11   社団法人北海道開発技術センター   新幹線の雪の舞い上がり現象に関する実験的研究

    藤井俊茂, 河島克久, 遠藤徹

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

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  • 平田賞

    1999.10   社団法人日本雪氷学会   多年性雪渓及び温暖氷河におけるフィルンの氷化過程の解明

    河島克久

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

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  • 技術賞

    1998.10   社団法人日本雪氷学   高速鉄道の雪対策に関する一連の技術開発

    財団法人鉄道総合技術研究所雪氷研究グループ

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

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  • 大沼賞

    1998.5   社団法人日本雪氷学会北信越支部   日本の多年性雪渓におけるフィルンの氷化過程の解明

    河島克久

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

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Research Projects

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    Grant number:22H01737

    2022.4 - 2025.3

    System name:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Research category:Grant-in-Aid for Scientific Research (B)

    Awarding organization:Japan Society for the Promotion of Science

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    Grant amount:\14040000 ( Direct Cost: \10800000 、 Indirect Cost:\3240000 )

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  • UAVを用いた積雪グライド現象の面的監視手法の構築

    2021.7 - 2022.3

    System name:試験研究費助成

    Awarding organization:内田エネルギー科学振興財団

    河島克久

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  • 大雪時におけるスタック車両発生条件の定量的評価と予測技術開発

    Grant number:20K05043

    2020.4 - 2023.3

    System name:科学研究費助成事業 基盤研究(C)

    Research category:基盤研究(C)

    Awarding organization:日本学術振興会

    藤本 明宏, 河島 克久

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    Authorship:Coinvestigator(s) 

    Grant amount:\4160000 ( Direct Cost: \3200000 、 Indirect Cost:\960000 )

    2021年度は、大型車のスタック発生メカニズムの解明、スタックの危険性の定量的評価およびスタック発生予測モデルの開発を実施した。また、過去に発生した雪による車両滞留の事例を整理し、データベースを作成した。
    2022年2月に北海道千歳市において、実車試験を実施した。この実車試験はスタックのし易さ(スタック脆弱性)を定量的に評価することを目的とした定量化試験と、大型車のスタックメカニズムを検証することを目的としたメカニズム試験に分けられる。定量化試験では、載荷の有無や輪荷重を考慮して、大型車を含め各車種のスタック脆弱性を定量的に評価できた。メカニズム試験では、トラクターとトレーラーの連結車において、圧雪路面に凹凸が発生する状況下では著しくスタックし易くなる可能性があることを明らかにした。
    スタック発生予測モデルに関しては、路面雪氷状態予測モデルをスタックリスクモデルへと発展させた。この関係性については特許を出願した。また、スタックリスクモデルをWeb上に公開するシステムを構築し、新潟県、福井県および鳥取県を対象として昨冬にスタックリスクの予測を試行した。
    2020/21年冬期までに日本において発生した雪による車両滞留イベントについて、発生日時、場所、路線名、発生原因、車種、滞留規模、発生状況等をとりまとめ、「雪による車両滞留イベントデータベース」として公開した。
    以上、大雪による立ち往生が多発し、その対策が急務となっている中、スタック発生メカニズムの解明やスタックの危険性(ここではスタック脆弱性)の定量的評価は効果的なスタック対策やドライバーへのより適切な啓発に繋がる知見である。また、スタック発生予測モデルは広域迂回や予防的除雪の適切な実施を支援する技術となる。さらに、雪による車両滞留イベントデータベースは、気象的見地から車両滞留の発生リスクを推定するデータとしての活用が期待される。

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  • 大雪による車両滞留・立ち往生の潜在的リスク評価に関する事業

    2020.4 - 2021.3

    System name:一般財団法人新潟県建設技術センター令和2年度研究助成事業

    河島克久

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  • SAR データ等を用いた豪雪地域の積雪深分布プロダクトの開発

    2019.4 - 2022.3

    System name:第2回地球観測研究公募

    Awarding organization:国立研究開発法人宇宙航空研究開発機構

    永井裕人

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    Grant type:Competitive

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  • 大雪による大規模交通障害発生時の気象特性解析

    2018.9 - 2019.3

    System name:一般財団法人研友社 平成30年度調査研究助成

    Awarding organization:民間財団等

    河島克久

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    Authorship:Principal investigator  Grant type:Competitive

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  • Development of new indicators and their measurement techniques which enable a prediction of glide avalanche release

    Grant number:18K18918

    2018.6 - 2021.3

    System name:Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Research (Exploratory)

    Research category:Grant-in-Aid for Challenging Research (Exploratory)

    Awarding organization:Japan Society for the Promotion of Science

    Matsumoto Takane

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    Authorship:Coinvestigator(s) 

    Grant amount:\5980000 ( Direct Cost: \4600000 、 Indirect Cost:\1380000 )

    In order to clarify the relationship between release of a glide avalanche and changes in physical properties of a snowpack in the starting zone, various observations were carried out on a steep slope in Oshirakawa, Uonuma City, Niigata. During the period between the onset of snow glide and the avalanche release in the winter of 2020/21, values measured with dielectric soil moisture probes which were installed into the lowest layer of the snowpack showed a sudden decrease followed by a large increase. In addition, specific electric conductivity of water in a small stream from the starting zone showed remarkable increase several hours before the avalanche release. These changes can be regarded as precursors of avalanche release. On the other hand, results of observations on tipping process of deciduous shrubs on the slope indicate that weather conditions in early winter also have a significant influence on snow glide and avalanche release.

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  • 南極域沿岸定着氷の物理的・生物地球化学的特性の解析

    2018.4 - 2020.3

    System name:一般共同研究

    Awarding organization:北海道大学低温科学研究所

    牛尾収輝

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    Grant type:Competitive

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  • 中越地震の崩壊斜面を対象とした植生回復速度に関する事業

    2018.4 - 2019.3

    System name:第5回研究助成事業

    Awarding organization:一般財団法人新潟県建設技術センター

    西井稜子

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    Grant type:Competitive

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  • 山陰地方の降積雪変動の解明と2017年大雪に伴う大規模交通障害の実態分析

    2017.9 - 2018.3

    System name:一般財団法人研友社 平成29年度調査研究助成

    Awarding organization:民間財団等

    河島克久

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    Authorship:Principal investigator  Grant type:Competitive

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  • 温帯雪氷圏における降積雪特性と雪氷災害の変容の解明:山陰地方を対象として

    2017.4 - 2019.3

    System name:一般共同研究

    Awarding organization:京都大学防災研究所

    河島克久

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    Authorship:Principal investigator  Grant type:Competitive

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  • Rain-on-Snow Event が雪氷圏の自然災害に与える影響の評価

    2017.4 - 2018.3

    System name:一般共同研究

    Awarding organization:北海道大学低温科学研究所

    河島克久

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    Authorship:Principal investigator  Grant type:Competitive

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  • Investigation of the surface avlanche at Mt. Nasu on 27 March, 2017

    Grant number:17K18453

    2017.4 - 2018.3

    System name:Grants-in-Aid for Scientific Research Grant-in-Aid for Special Purposes

    Research category:Grant-in-Aid for Special Purposes

    Awarding organization:Japan Society for the Promotion of Science

    Kamiishi Isao, MATSUURA Sumio, KATSUSHIMA Takafumi, HASHIMOTO Akihiro, ARAKI Kentaro, IWANAMI Koyuru, SUZUKI Shin-ichi, KOSUGI Kenji, YAMAGUCHI Satoru, MOTOYOSHI Hiroki, HIRASHIMA Hiroyuki, ITO Yoichi, ABE Osamu, ADACHI Satoru, SUZUKI Hinako, ABE Naoki, ABE Mikio, IYOBE Tsutomu, KIEDA Kaori, SAKAMIBARA Kenichi, SATO Kengo, SHIMIZU Shingo, SETANI Oziro, MAESAKA Tsuyoshi, YOSHIKAWA Chisato, WATABE Syun

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    Authorship:Coinvestigator(s) 

    Grant amount:\24570000 ( Direct Cost: \18900000 、 Indirect Cost:\5670000 )

    We investigated the surface avalanche at Mt. Nasu on 27 March, 2017, which killed 8 people including 7 high school students. We found that the weak layer causing the avalanche consisted of no-rimed fallen crystal associated with the cyclone system and heavy snowfall amount on the weak layer triggered the avalanche. Our statistical analyses indicated that the similar heavy snowfall events occur about one every 19 years in March. Using the avalanche dynamics model, we infered the starting point of the avalanche which could not be determined by the field observation. We also make the database of avalanche history in the area and developed the forecasting system of avalanche caused by the cyclone system.

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  • 積雪期の降雨(ROSイベント)に起因する災害の事例分析と気象特性解析

    2016.9 - 2017.3

    System name:一般財団法人研友社 平成28年度調査研究助成

    Awarding organization:民間財団等

    河島克久

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    Authorship:Principal investigator  Grant type:Competitive

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  • Sediment transport by volcano-snow-water interaction at snow-clad volcanoes during a pre-eruptive period: a study for the next eruption

    Grant number:16K12846

    2016.4 - 2019.3

    System name:Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research

    Research category:Grant-in-Aid for Challenging Exploratory Research

    Awarding organization:Japan Society for the Promotion of Science

    Kataoka Kyoko S., NAGAHASHI Yoshitaka, TSUNEMATSU Kae

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    Authorship:Coinvestigator(s) 

    Grant amount:\3510000 ( Direct Cost: \2700000 、 Indirect Cost:\810000 )

    Snow-clad volcanoes have high hazard risks of snow-melt lahars caused by direct eruptions and rain-on-snow-triggered lahars during the snow-melt season after the eruptions. The research project deals with two active volcanoes (Mts. Azuma and Adatara) having thick snowpack during winter, and aims to reveal 1) snowpack characteristics such as altitudinal distribution of snow water equivalent and energy balance at the snow surface and 2) background characteristics of hydrology (discharge, water stage, and water quality) and sediment transport (suspended sediment concentration and turbidity) in rivers downstream of the volcanoes during a pre-eruptive (i.e. inter-eruptive) period.

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  • Comprehensive Survey of 2015 Nepal Earthquake and Resulted Disasters

    Grant number:15H05793

    2015.5 - 2016.3

    System name:Grants-in-Aid for Scientific Research Grant-in-Aid for Special Purposes

    Research category:Grant-in-Aid for Special Purposes

    Awarding organization:Japan Society for the Promotion of Science

    YATABE RYUICHI, FUKUOKA Hiroshi, HIGAKI Daisume, Bhandary N. P., HASEGAWA Shuichi, KAMIISHI Isao, IZUMI Kaoru, SATO Hiroshi, TAKAI Nobuo, KUMAHARA Yasuo, MIO Minoru, TAKADA Yosuke, TAKEUCHI Yasushi, OKUBO Takeyuki, MINAMI Makito, ATSUMI Tomohide, MURAKAMI Hitomi, YAGI Hiroshi, MOMOMURA Atsuko, YAMAGUCHI Satoru, KAWASHIMA Katsuhisa, HIRATA Nao, SAKAI Shinichi, KURASHIMO Eiji, KOKETSU Kazuki, SHIGEFUJI Michiko, ISHIYAMA Tatsuya, MATSUTA Nobuhisa, HIROUCHI Daisuke

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    Authorship:Collaborating Investigator(s) (not designated on Grant-in-Aid) 

    Grant amount:\20600000 ( Direct Cost: \20600000 )

    In this study, we conducted a comprehensive investigation of the damage made by Nepal Gorkha Earthquake occurred on 25 April 2015. The main items of understandings of the investigation and analysis are: 1) earthquake occurrence mechanism , 2) mechanism of slope failures in the mountainous areas due to the earthquake and fault activities, 3) situation of damage and destruction of buildings and civil infrastructures, 4) situation analysis of earthquake-induced ice avalanche disaster, and 5) overall disaster risk assessment. Through these items of understanding, we contributed to second-stage disaster reduction and restoration plan preparation in Nepal.

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  • Full-scale avalanche experiments and development of hazard map with PCQ

    Grant number:15H02992

    2015.4 - 2019.3

    System name:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Research category:Grant-in-Aid for Scientific Research (B)

    Awarding organization:Japan Society for the Promotion of Science

    NISHIMURA KOUICHI

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    Authorship:Coinvestigator(s) 

    Grant amount:\17810000 ( Direct Cost: \13700000 、 Indirect Cost:\4110000 )

    Systematic full-scale avalanche experiments have been carried out in Niseko, Hokkaido. Several video cameras were used to investigate the flow behavior. Further, drones were applied not only to record the avalanche motion but to create the digital elevation models for the pre- and post-avalanche events. In order to record the internal motion of avalanches, inertial measurements units (IMU) were also set. Seismometers and infrasound microphones were also set close to the avalanche path. Furthermore, a Doppler radar and an infrared camera were introduced. Obtained results revealed that the combination of different data is effective measures to characterize their structures.
    Further, we draw the snow avalanche hazard map in the study area with taking into account the uncertainty of the model input parameters: volume, bed friction angle and the position of the release. We introduced the Polynomial Chaos Quadrature method (PCQ) and probability of the avalanche arrival was evaluated.

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  • Spatio-temporal fluctuations of snow depth distribution caused by the cyclone passage the south coast of Japan and development of snowmap by using the meso-scale model

    Grant number:15K01161

    2015.4 - 2018.3

    System name:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)

    Research category:Grant-in-Aid for Scientific Research (C)

    Awarding organization:Japan Society for the Promotion of Science

    IYOBE TSUTOMU, MATSUMOTO Takane

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    Authorship:Coinvestigator(s) 

    Grant amount:\4290000 ( Direct Cost: \3300000 、 Indirect Cost:\990000 )

    Due to change the horizontal place of generation and intensity of snowfalls by passing route of cyclones, it is difficult to understand the actual status of extreme snowfall phenomenon in the areas of the Pacific Ocean. In this study, spatio-temporal fluctuations of snow depth distribution were analyzed in a climatological context to assess the regional characteristics of snowfall amount and intensity after the cyclone passage the south coast of Japan. The result demonstrate the annual frequency of heavy snowfall varies depending on the areas, and the gradient of snow depth distribution of on the mountain tends to be smaller than those of the area facing the Sea of Japan.

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  • Observations of outflow from the bottom of a snowpack on slope with a large-size snow lysimeter for the purpose of developing a prediction method for the glide avalanche release

    Grant number:26560189

    2014.4 - 2017.3

    System name:Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research

    Research category:Grant-in-Aid for Challenging Exploratory Research

    Awarding organization:Japan Society for the Promotion of Science

    Kawashima Katsuhisa, NOHGUCHI Yasuaki, MATSUMOTO Takane

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    Authorship:Principal investigator 

    Grant amount:\3770000 ( Direct Cost: \2900000 、 Indirect Cost:\870000 )

    This study primarily intended to optimize an unknown parameter used in a model for estimating outflow from the bottom of a snowpack in case it is applied to snowpack on slopes. Consequently, the fluctuation range of the parameter value was found to be considerably large, indicating that the improvement of model versatility requires the incorporation of effects of snowpack structure into the model. Although the relationship between outflows from the bottom of a snowpack and snow glide rates was not able to be clarified, the possible presence of the short-time forecast of glide avalanches was indicated by using the mathematical model for instability in snow gliding motion, proposed by Nohguchi (1989).

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  • Investigations of heavy snowfall disaster in the Kanto-Koshin district on Feburuary 14-16, 2014

    Grant number:25900003

    2014.4 - 2015.3

    System name:Grants-in-Aid for Scientific Research Grant-in-Aid for Special Purposes

    Research category:Grant-in-Aid for Special Purposes

    Awarding organization:Japan Society for the Promotion of Science

    IZUMI Kaoru, NAKAI Sento, UENO Kenichi, KAWASHIMA Katsuhisa, IYOBE Tsutomu, KAMIISHI Isao, KOSUGI Kenji, AKIYAMA Kazuya, IRASAWA Naoya, GOTO Satoshi, WAKAI Akihiko, NUMANO Natsuo, KAMIMURA Seiji, TAKAHASHI Toru, UEMATSU Yasushi, INOUE Satoshi, MORIYAMA Hideki, FUKUHARA Teruyuki, YAMAGUCHI Satoru, NISHIMURA Kouichi, ODA Kenichi, HONDA Meiji, YAMAZAKI Akira

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    Authorship:Coinvestigator(s) 

    Grant amount:\8100000 ( Direct Cost: \8100000 )

    We have investigated the heavy snowfall event and disaster that occurred in the Kanto-Koshin district on Feburuary 14-16, with special attention to meteorological and snowfall characteristics, atmospheric circulation fields, snow cover distribution, snowpack properties, snow avalanche and snowmelt disasters, snow damages of buildings and greenhouses, traffic disturbances, and avalanche hazard map. Consequently, the meteorological and snow hazards that brought this disaster was clarified as well as the actual situation of the disaster. Finally, we proposed future disaster mitigation measures against heavy snowfall in the Pacific Ocean side of Japan.

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  • Understandings of mechanisms of recent extreme heavy snowfall events in Japan and construction of a real-time analysis system

    Grant number:24540470

    2012.4 - 2015.3

    System name:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)

    Research category:Grant-in-Aid for Scientific Research (C)

    Awarding organization:Japan Society for the Promotion of Science

    HONDA Akiharu, KAWASHIMA Katsuhisa, NAKAI Sento

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    Authorship:Coinvestigator(s) 

    Grant amount:\5070000 ( Direct Cost: \3900000 、 Indirect Cost:\1170000 )

    Extreme weather events often bring natural hazards in Japan. In particular, heavy snowfall brings great damages for inhabitants life with various disasters. Associated with recent Arctic climate changes, cold waves often attack the Far East region during winter in recent 10 years, which caused many extreme heavy snowfall events in Japan. Towards understandings of such extreme snowfall events in Japan, we developed an online auto-collecting system using weather observational network. Further, we constructed “Real-time analysis system”based on integrated data auto-collecting and analyzing system through installation of regional weather forecast models.

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  • 積雪期地域防災情報プラットフォームの構築-小千谷市における社会実装試験-

    2012.4 - 2014.3

    System name:新潟県中越大震災復興基金 地域復興支援事業(地域貢献型中越復興研究支援)

    Awarding organization:地方自治体

    河島克久

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\4022000 ( Direct Cost: \4022000 )

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  • Establishment a general-purpose snowmelt model and its application to prevention of snowmelt-induced disasters in mountain regions

    Grant number:23310124

    2011.4 - 2015.3

    System name:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Research category:Grant-in-Aid for Scientific Research (B)

    Awarding organization:Japan Society for the Promotion of Science

    KAWASHIMA Katsuhisa, SUZUKI Keisuke, KAMIISHI Isao, IIDA Hajime, IYOBE Tsutomu, IZUMI Kaoru, MATSUMOTO Takane

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    Authorship:Principal investigator 

    Grant amount:\15730000 ( Direct Cost: \12100000 、 Indirect Cost:\3630000 )

    A large quantity of meltwater which infiltrate into the ground during melt season causes a decrease in stability of slope and snowpack, and thus may lead to slope failures and snow avalanches. Aiming at establishing a general-purpose snowmelt model (temperature-radiation index melt model), we investigated the variability characteristics of the model coefficients based on the heat balance observations at melting snow surface in many mountain regions. In addition, we studied a risk evaluation method of wet snow avalanches by focusing on the outflow from the bottom of a snowpack during melt season. Consequently, although a general-purpose snowmelt model was not completed in this study, a new percolation model with high estimate accuracy was proposed, which will contribute to the prevention of snowmelt-induced disasters in mountain regions where available meteorological data is limited.

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  • 大佐渡山地スギ原生林の熱収支特性に及ぼす霧の影響の解明

    2011.4 - 2012.3

    System name:財団法人佐々木環境技術振興財団 試験研究費助成

    Awarding organization:民間財団等

    河島克久

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\600000 ( Direct Cost: \600000 )

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  • Study on the contribution of super-cooled fog to the formation of greatly grown surface hoar as a cause of avalanche release

    Grant number:23651179

    2011 - 2012

    System name:Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research

    Research category:Grant-in-Aid for Challenging Exploratory Research

    Awarding organization:Japan Society for the Promotion of Science

    IZUMI Kaoru, KAWASHIMA Katsuhisa, MATSUMOTO Takane

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    Authorship:Coinvestigator(s) 

    Grant amount:\2600000 ( Direct Cost: \2000000 、 Indirect Cost:\600000 )

    Surface snow is one of snow types on sliding layer of surface snow avalanches. It has been considered that surface hoar developed by supply of excess atmospheric vapor to radiation-cooled snow surface.
    This study revealed that greatly grown surface hoar, which could become sliding layer snow of surface snow avalanche, was formed by attaching of super-cooled droplets in super-cooled fog/cloud covering snow surface of newly fallen snow or lightly grown surface hoar, and that heavy snowfall just after developing surface hoar directly led to the release of surface snow avalanche. However, the successive combination of above two meteorological conditions was revealed to hardly occur under normal change of weather in actuality.

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  • 大佐渡山地の霧の実態に迫る-金山・朱鷺に続く佐渡第3の観光資源を育む霧-

    2010.4 - 2011.3

    System name:社団法人北陸建設弘済会 第15回北陸地域の活性化に関する研究助成事業

    Awarding organization:民間財団等

    河島克久

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    Authorship:Principal investigator  Grant type:Competitive

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  • 雪渓崩落災害のデータベース化と雪渓崩壊の危険度評価に関する研究

    2009.4 - 2011.3

    System name:富山県元気な雪国づくり事業 調査研究・技術開発事業

    Awarding organization:地方自治体

    河島克久

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\1400000 ( Direct Cost: \1400000 )

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  • 大佐渡山地の標高別気象特性と雲霧帯の実態解明

    2009.4 - 2010.3

    System name:財団法人佐々木環境技術振興財団 試験研究費助成

    Awarding organization:民間財団等

    河島克久

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\980000 ( Direct Cost: \980000 )

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  • 2005-06冬期豪雪による雪害対策に関する緊急調査研究

    2006.1 - 2006.3

    System name:科学技術振興調整費

    Awarding organization:文部科学省

    西村浩一

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    Grant type:Competitive

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  • 山岳雪渓の崩壊現象の解明と雪渓崩落事故防止対策の提案

    2005.4 - 2007.3

    System name:財団法人日本積雪連合 調査研究委託事業

    Awarding organization:民間財団等

    河島克久

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    Authorship:Principal investigator  Grant type:Competitive

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  • Generation processes and releasing mechanism of slushflow

    Grant number:17510147

    2005 - 2007

    System name:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)

    Research category:Grant-in-Aid for Scientific Research (C)

    Awarding organization:Japan Society for the Promotion of Science

    KAWASHIMA Katsuhisa, IZUMI Kaoru, URABE Atsushi

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    Authorship:Principal investigator 

    Grant amount:\3220000 ( Direct Cost: \3100000 、 Indirect Cost:\120000 )

    The Mizunashi river, located in the southern part of Niigata prefecture, is one of the rivers where slushflows often occur. The middle and lower reaches of the river flows in the alluvial fan and joins the Uono river In order to make clear hydrogeological and hydrometeorological backgrounds lurking behind the repeated occurrence of slushflow, hydrological observations, including water levels of the stream and groundwater levels, glaciological observations and subsurface structure investigations were carried out in this river The following are main results obtained.
    1. Disappearance of surface water and snow accumulation on river bed
    At the lower edge of the fan, the surface water often disappears entirely from the river channel. The position where surface water disappears depends on the discharge at the apex of fan. Since the apex discharge decreases to 2 m^3/s or less during the snow season, the snow accumulation on the river bed is possible between the confluence point and 5 km point to the upstream side. This fills one of the necessary conditions of slushflow occurrence.
    2. Subsurface structure and groundwater level
    Electric prospecting surveys and existing boring data permitted the estimation of subsurface structure along the river. The water table becomes the deepest at the 45 km point in concert with the drastic drop of basement It appears certain that this structure contributes to the disappearance of surface water mentioned above.
    3. Fluctuations of river water level during the snow season and slushflow releases
    Measurements of river water level showed that water flowed continuously throughout the winter at the apex of fan. Meanwhile, surface water completely disappeared from the beginning of snow season to midwinter When large quantity of water was supplied to the river basin by the passage of low-pressure systems in winter, sudden emergence of surface water and rapid rise of water level were observed several times at the middle and lower reaches of the river where its bed was covered with snow. At those cases, after the entire snowpack had been saturated with water in several minutes, water was flowing over the snow surface over 5-10 m in width and the slushflow released in some cases.
    4. Conclusions and future issues
    Slushflows in the Mizunashi river are characterized by hydrological environments peculiar to alluvial fans, a extremely-low slope angle and a lack of impermeable bed surface, such as permafrost, ice and rock. Aiming at the development of the forecast method of slushflows in the Mizunashi river, it is necessary to develop the behavior model of surface water in which interaction relationships between groundwater and river water must be considered It is likely that the frequency of rainfall in midwinter is increasing in Japan due to effects of global warming; the clarification of slushflow may become important more and more.

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  • 2005-06年冬期豪雪による広域雪氷災害に関する調査研究

    Grant number:17800006

    2005

    System name:科学研究費助成事業 特別研究促進費

    Research category:特別研究促進費

    Awarding organization:日本学術振興会

    佐藤 篤司, 和泉 薫, 力石 國男, 高橋 徹, 林 春男, 沼野 夏生, 河島 克久

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    Authorship:Coinvestigator(s) 

    日本各地に甚大な被害をもたらした平成18年豪雪について、本研究では、大気大循環場と降雪特性、積雪特性の広域分布と雪崩災害、生活及び建築関連雪害、予測技術と軽減方策の四つの研究課題を設定し調査研究を実施した。大気大循環の調査からは、寒気の南下は38豪雪に次ぐ規模であり、特に12月は冬季モンスーン指標が過去50年で最大となったこと、それには熱帯域の影響も示唆されることなどの特徴が明らかになった。その結果、1月初旬に既に最深積雪に近い積雪を各地で記録した。この時点の広域での積雪分布を調査したところ、新潟県上中越から長野、群馬両県境にかけての山間部を始め、東北、中部、中国地方でも特に山間地域に多量の積雪が集中していたことがわかった。山間地での降積雪は必然的に雪崩を誘発し、数多くの乾雪表層雪崩の発生をみた。本研究では死者の出た秋田県乳頭温泉での雪崩を始め、多くの現地調査を行いその発生要因を調査した。また、広域の一斉断面観測により、早い時期からの積雪増加が高密度で硬い雪質をもたらしたことが観測され、それが生活関連雪害にも反映したことが推測された。生活関連雪害では、死者(交通事故を除く)の圧倒的多数(3/4)は雪処理中の事故によるものであった。その比率は56豪雪時(1/2)と比べて増加していること、多くは高齢者で全体の2/3をしめ、70歳代が群を抜き、高齢者が雪処理に従事せざるを得ない状況などが読み取れた。また、56豪雪と比べて家屋の倒壊による死者が多く、老朽家屋に高齢者が住んでいて被害に遭遇するという構造がうかがえた。さらに本研究では、積雪変質モデルを使った雪崩危険度予測を行い、実際の雪崩発生と比較検討するとともに雪崩の危険性によって長期間閉鎖された国道405号線に適用する試みや冬季のリスクマネジメントに関する調査等を実施し、雪氷災害の被害軽減に有効な手法についての研究も行った。

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  • 平成16年7月新潟・福島、福井豪雨災害に関する調査研究

    Grant number:16800001

    2004

    System name:科学研究費助成事業 特別研究促進費

    Research category:特別研究促進費

    Awarding organization:日本学術振興会

    高濱 信行, 卜部 厚志, 和泉 薫, 大熊 孝, 服部 勇, 林 春男, 河島 克久

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    Authorship:Coinvestigator(s) 

    1 洪水と破堤に関する気象学・河川工学・地盤工学からの検討
    (1)記録的な豪雨に対して,アメダス気象観測点の他に多数の雨量観測を収集した.雨量の解析から日雨量400mmを越える降雨は新潟県の栃尾地域のみではなく西部の出雲崎地域にも分布していたことが明らかとなった.
    (2)流域の3つのダムは,降雨初期には貯水効果を発揮したが,記録的な降雨量のため機能を超過したため,中流域では堤防を各地で越流する超過洪水となっていたことが明らかとなった.
    (3)2つの大規模な破堤地点での要因は,最終的には越流が引き金になっている.しかし,三条地域では旧河川流路にあたる砂礫地盤の直上部が破堤しており,堤外の水圧の増加に伴って砂礫地盤への浸透がおこり堤防が不安定になり一気に決壊したものと考えられる.
    (4)破堤部付近で住家の破壊・流出を含めた建物被害の分布と広域的な浸水深度と流向の測定を行ない,浸水の深度分布と拡散過程を明らかにした.
    2「災害弱者」の防災対策の検討
    高齢者など災害弱者を中心とした被災状況を詳しく調査・分析した.この結果,高齢者の中でも独居や要介護者が被災したことが明らかとなった.また,在宅避難のあり方についても提言を行なった.
    3 地すべりなどの土砂災害に関する地質・地盤工学からの検討
    栃尾地域と出雲崎地域の斜面災害について,分布と要因を解析した.表層崩壊,岩盤崩壊,崩壊性地すべりなどいくつかのパターンに区分できた.
    4 洪水が農作物に与えた被害の実態調査と今後の評価
    冠水地での水稲の生育被害を調査した.結果は冠水日数によって分げつ数の違いがあり枝穂の増加によって収量の低下が認められた.また,被災直後の衛星画像解析から,被害(収量減少)の予測が可能であることが明らかとなった.

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Teaching Experience (researchmap)

  • 自然環境科学総論

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  • 総合力アクティブ・ラーニング

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  • フィールド安全論

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  • 基礎雪氷学

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  • 気象災害特論

    Institution name:新潟大学大学院

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  • 気象学

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  • 環境科学総合演習Ⅰ

    Institution name:新潟大学大学院

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  • 環境科学特定演習Ⅰ

    Institution name:新潟大学大学院

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  • 環境科学特定研究Ⅰ

    Institution name:新潟大学大学院

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  • 雪氷災害特論Ⅱ

    Institution name:新潟大学大学院

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  • 自然科学総論Ⅴ

    Institution name:新潟大学大学院

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  • 課題研究

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  • 災害・復興科学演習及び実習

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  • フィールドワーカーのためのリスクマネジメント実習

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  • 雪氷防災学

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  • 自然環境科学概論A

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  • 災害復興科学

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  • 積雪災害看護論

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  • 雪氷学入門

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  • 水圏・地圏循環論Ⅰ

    Institution name:信州大学理学部

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Teaching Experience

  • 自然環境科学研究演習

    2023
    Institution name:新潟大学

  • 理学基礎演習

    2022
    Institution name:新潟大学

  • 自然環境科学総論

    2021
    Institution name:新潟大学

  • 基礎雪氷学

    2021
    Institution name:新潟大学

  • 突発災害特論

    2021
    Institution name:新潟大学

  • 卒業論文Ⅱ

    2020
    Institution name:新潟大学

  • 卒業論文

    2020
    Institution name:新潟大学

  • 卒業論文Ⅰ

    2020
    Institution name:新潟大学

  • 自然災害環境論

    2020
    Institution name:新潟大学

  • フィールドワーカーのためのリスクマネジメント実習

    2019
    Institution name:新潟大学

  • 災害・復興科学演習及び実習

    2019
    -
    2022
    Institution name:新潟大学

  • フィールド安全論

    2018
    Institution name:新潟大学

  • 雪氷防災学

    2017
    Institution name:新潟大学

  • 雪氷災害特論

    2017
    Institution name:新潟大学

  • 総合力アクティブ・ラーニング

    2017
    -
    2021
    Institution name:新潟大学

  • 自然科学総論Ⅴ

    2015
    -
    2019
    Institution name:新潟大学

  • 自然環境科学概論A

    2015
    -
    2016
    Institution name:新潟大学

  • 環境科学特定演習Ⅰ

    2012
    Institution name:新潟大学

  • 環境科学特定研究Ⅰ

    2012
    Institution name:新潟大学

  • 環境科学総合演習Ⅰ

    2012
    Institution name:新潟大学

  • 基礎雪氷学

    2008
    -
    2019
    Institution name:新潟大学

  • 雪氷災害特論Ⅱ

    2008
    -
    2016
    Institution name:新潟大学

  • 気象災害特論

    2007
    Institution name:新潟大学

  • 雪氷災害学特論II

    2007
    Institution name:新潟大学

  • 気象学

    2007
    Institution name:新潟大学

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Social Activities

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Media Coverage

  • ナビゲーター(解説)出演 TV or radio program

    NHK 明日をまもるナビ  (105)この冬も大雪に警戒!雪国以外も備えを!  2023.12

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  • ナビゲーター(解説)出演 TV or radio program

    NHK  明日をまもるナビ  (65)今年も警戒!大雪対策 大丈夫?  2022.11

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  • ナビゲーター(解説)出演 TV or radio program

    NHK  明日をまもるナビ  (27)温暖化でリスク増大! 大雪にどう備える?  2021.12

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  • ゲスト出演 TV or radio program

    NHK新潟放送局  新潟ニュース610  トーク610「雪道におけるスタックの発生と対策」  2021.11

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  • 関越自動車道の大雪による立ち往生に関する取材協力 TV or radio program

    BSN新潟放送  ゆうなび  2020.12

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  • ゲスト出演(大雪、その時どうする?) TV or radio program

    NHK新潟放送局  にいがたゆうどきラジオ 防災コーナー「おしえて!防災せんせい」  2018.12

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  • ゲスト出演 TV or radio program

    NHK鳥取放送局  とっとりスペシャル「大雪に備える」  2018.1

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  • ゲスト出演(柵口雪崩災害から学ぼう) TV or radio program

    NHK新潟放送局  にいがたゆうどきラジオ 防災コーナー「おしえて!防災せんせい」  2017.12

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