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2017 Fiscal Year Annual Research Report

Investigation of state and fluctuation mechanisms of glaciers in high mountain Asia

Research Project

Project/Area Number 26257202
Research InstitutionNagoya University

Principal Investigator

藤田 耕史  名古屋大学, 環境学研究科, 准教授 (80303593)

Co-Investigator(Kenkyū-buntansha) 福井 幸太郎  公益財団法人立山カルデラ砂防博物館, 学芸課, 学芸員 (10450165)
杉山 慎  北海道大学, 低温科学研究所, 教授 (20421951)
Project Period (FY) 2014-04-01 – 2018-03-31
Keywords氷河 / ヒマラヤ / 水資源 / 現地観測 / リモートセンシング
Outline of Annual Research Achievements

2017年10~11月にかけて、ネパール・ロールワリン山域のトランバウ氷河に設置した観測網の再測定をおこない、気象、質量収支、氷河流動、デブリ内の温度分布のデータを回収した。地中探査レーダ(GPR)による氷河の氷厚観測に関しては、前年度実施した際に岩盤からの反射シグナルが弱かったため、アンテナを変更して実施したところ、良質なデータを取得することができた。この結果、二年分の質量収支に関するデータを取得することができた。
データ解析の結果、5800mという高標高においても融解しており、質量収支がほぼゼロであった。観測で得られた質量収支について、数値計算モデルでの再現を試みたところ、これまで考えられていた降水の高度分布は質量収支を過大評価する可能性があることが明らかになり、モデル改良のための方針が明確となった。
並行して、2015年に発生したゴルカ大地震の被害調査を論文としてまとめるとともに(Fujita et al., 2017)、衛星データ解析による氷河変動(Lamsal et al., 2017; Nuimura et al., 2017)、デブリ氷河の形成と変動に関する統計解析(Ojha et al., 2017; Salerno et al., 2017)を出版した。更に、アジア高山域をカバーする広域において、気候変化に対する氷河の応答の地域的な違いとその要因を明らかにした論文を出版した(Sakai and Fujita, 2017)。近年急激に増加したヒマラヤの氷河研究についての総説論文を海外の共同研究者と共に出版した(Azam et al., 2018)。

Research Progress Status

29年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

29年度が最終年度であるため、記入しない。

  • Research Products

    (23 results)

All 2018 2017 Other

All Int'l Joint Research (1 results) Journal Article (9 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 8 results,  Open Access: 6 results) Presentation (12 results) (of which Int'l Joint Research: 8 results,  Invited: 2 results) Remarks (1 results)

  • [Int'l Joint Research] Kathmandu University(Nepal)

    • Country Name
      Nepal
    • Counterpart Institution
      Kathmandu University
  • [Journal Article] Review of the status and mass changes of Himalayan-Karakoram glaciers2018

    • Author(s)
      Azam FM, Wagnon P, Berthier E, Vincent C, Fujita K, Kargel JS
    • Journal Title

      Journal of Glaciology

      Volume: 64 Pages: 61-74

    • DOI

      10.1017/jog.2017.86

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Anomalous winter-snow-amplified earthquake-induced disaster of the 2015 Langtang avalanche in Nepal2017

    • Author(s)
      Fujita K, Inoue H, Izumi T, Yamaguchi S, Sadakane A, Sunako S, Nishimura K, Immerzeel WW, Shea JM, Kayastha RB, Sawagaki T, Breashears DF, Yagi H, Sakai A
    • Journal Title

      Natural Hazards and Earth System Sciences

      Volume: 17 Pages: 749-764

    • DOI

      10.5194/nhess-17-749-2017

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Surface lowering of the debris-covered area of Kanchenjunga Glacier in the eastern Nepal Himalaya since 1975, as revealed by?Hexagon KH-9 and ALOS satellite observations2017

    • Author(s)
      Lamsal D, Fujita K, Sakai A
    • Journal Title

      The Cryosphere

      Volume: 11 Pages: 2815-2827

    • DOI

      10.5194/tc-11-2815-2017

    • Peer Reviewed / Open Access
  • [Journal Article] Evaluating the Scale and Potential of GLOF in the Bhutan Himalayas Using a Satellite-Based Integral Glacier?Glacial Lake Inventory2017

    • Author(s)
      Nagai H, Ukita J, Narama C, Fujita K, Sakai A, Tadono T, Yamanokuchi T, Tomiyama N
    • Journal Title

      Geosciences

      Volume: 7 Pages: 77

    • DOI

      10.3390/geosciences7030077

    • Peer Reviewed / Open Access
  • [Journal Article] Downwasting of the debris-covered area of Lirung Glacier in Langtang Valley, Nepal Himalaya, from 1974 to 20102017

    • Author(s)
      Nuimura T, Fujita K, Sakai A
    • Journal Title

      Quaternary International

      Volume: 455 Pages: 93-101

    • DOI

      10.1016/j.quaint.2017.06.066

    • Peer Reviewed
  • [Journal Article] Topographic controls on the debris-cover extent of glaciers in the Eastern Himalayas: Regional analysis using a novel high-resolution glacier inventory2017

    • Author(s)
      Ojha S, Fujita K, Sakai A, Nagai H, Lamsal D
    • Journal Title

      Quaternary International

      Volume: 455 Pages: 82-92

    • DOI

      10.1016/j.quaint.2017.08.007

    • Peer Reviewed
  • [Journal Article] Contrasting glacier responses to recent climate change in high-mountain Asia2017

    • Author(s)
      Sakai A, Fujita K
    • Journal Title

      Scientific Reports

      Volume: 7 Pages: 13717

    • DOI

      10.1038/s41598-017-14256-5

    • Peer Reviewed / Open Access
  • [Journal Article] Debris-covered glacier anomaly? Morphological factors controlling changes in the mass balance, surface area, terminus position, and snow line altitude of Himalayan glaciers2017

    • Author(s)
      Salerno F, Thakuri S, Tartari G, Nuimura T, Sunako S, Sakai A, Fujita K
    • Journal Title

      Earth and Planetary Science Letters

      Volume: 471 Pages: 19-31

    • DOI

      10.1016/j.epsl.2017.04.039

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 2015 年ランタン大なだれ-冬季の大雪によって増幅された被害-2017

    • Author(s)
      藤田耕史
    • Journal Title

      Japan Geoscience Letters

      Volume: 13 Pages: 1-3

    • Open Access
  • [Presentation] Downwasting of Lirung Glacier in Langtang Valley, Nepal Himalayas since 1974.2017

    • Author(s)
      Nuimura T, Fujita K, Sakai A
    • Organizer
      European Geosciences Union General Assembly 2017
    • Int'l Joint Research
  • [Presentation] Surface elevation change of glaciers revealed by digital elevation models using aerial photographs with SfM technique in Khumbu region, Nepal Himalaya, from the 1970s to 20162017

    • Author(s)
      Ota K, Fujita K, Sakai A, Sunako S, Ohmori K
    • Organizer
      International Symposium on Remote Sensing 2017
    • Int'l Joint Research
  • [Presentation] Quality assessment of UAV based DEMs derived from different platforms using the structure-from-motion technique2017

    • Author(s)
      Sunako S, Fujita K, Inoue H, Immerzeel WW, Izumi T
    • Organizer
      International Symposium on Remote Sensing 2017
    • Int'l Joint Research
  • [Presentation] Measurement of mass balance with high altitude, and thermal property of debris-covered area at the Trambau Glacier, Nepal2017

    • Author(s)
      砂子宗次朗, 藤田耕史, 坂井亜規子
    • Organizer
      日本地球惑星科学連合大会
  • [Presentation] Rock glaciers in the Bhutan Himalayas2017

    • Author(s)
      Fukui K, Fujita K, Tshering P, Furuya M
    • Organizer
      The 2nd Asian Conference on Permafrost (ACOP2017)
    • Int'l Joint Research
  • [Presentation] Contrasting glacier responses to recent climate change in high-mountain Asia2017

    • Author(s)
      Sakai A, Fujita K
    • Organizer
      Third Pole Science Summit - TPE-CSTP-HKT Joint Conference
    • Int'l Joint Research / Invited
  • [Presentation] Anomalous winter-snow-amplified earthquake-induced disaster of the 2015 Langtang avalanche in Nepal2017

    • Author(s)
      Fujita K, Inoue H, Izumi T, Yamaguchi S, Sadakane A, Sunako S, Nishimura K, Immerzeel WW, Shea JM, Kayastha RB, Sawagaki T, Breashears DF, Yagi H, Sakai A
    • Organizer
      Third Pole Science Summit - TPE-CSTP-HKT Joint Conference
    • Int'l Joint Research / Invited
  • [Presentation] ネパール・ヒマラヤ,トランバウ氷河におけるデブリ域の熱特性について2017

    • Author(s)
      砂子宗次朗, 藤田耕史, 坂井亜規子
    • Organizer
      雪氷研究大会
  • [Presentation] SfM技術を用いたネパールヒマラヤ・クンブ地域における1970年代~2016年の氷河表面標高変化2017

    • Author(s)
      大田晃三郎, 砂子宗次朗, 坂井亜規子, 大森弘一郎, 藤田耕史
    • Organizer
      雪氷研究大会
  • [Presentation] ブータン・ヒマラヤの岩石氷河2017

    • Author(s)
      福井幸太郎, 藤田耕史, Tshering P, 古屋正人
    • Organizer
      雪氷研究大会
  • [Presentation] In-situ measurement of mass balance on a debris-covered Trambau Glacier, Nepal Himalaya2017

    • Author(s)
      Fujita K, Sunako S, Sakai A, Fukui K, Sugiyama S, Kayastha RB
    • Organizer
      American Geophysical Union Fall Meeting 2017
    • Int'l Joint Research
  • [Presentation] Aridity of Central Asia through the Holocene2017

    • Author(s)
      Aizen VB, Aizen EM, Mayewski PA, Zhou H, Rodda C, Joswiak D, Takeuchi N, Fujita K, Kurbatov A, Grigholm BO
    • Organizer
      American Geophysical Union Fall Meeting 2017
    • Int'l Joint Research
  • [Remarks] 名古屋大学大学院環境学研究科雪氷圏変動研究室

    • URL

      http://www.cryoscience.net/

URL: 

Published: 2018-12-17  

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