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2020 年度 実績報告書

氷河学における新たなプロキシとしての地震波解析

研究課題

研究課題/領域番号 18K18175
研究機関北海道大学

研究代表者

Podolskiy Evgeny  北海道大学, 北極域研究センター, 助教 (80775536)

研究期間 (年度) 2018-04-01 – 2021-03-31
キーワードglacier / earthquake / seismicity / acoustics / Greenland
研究実績の概要

In the Fiscal Year 2020, for advancing our understanding of seismo-acoustic noise and glaciers in Greenland, the following research results were delivered: five peer-reviewed publications and four presentations. Out of these, three papers were first-authored [Podolskiy et al. 2021a, 2021b; Podolskiy and Sugiyama, 2020], and two presentations made at meetings run by international societies [EGU, JpGU/AGU]. Four papers were published as open-access articles.

The papers about a co-seismic eruption of a subglacial discharge plume [Podolskiy et al. 2021a] and soundscape of a glacier fjord [Podolskiy and Sugiyama, 2020] have received the highest attention online. For example, Altmetric scores were 111 and 366, respectively, and multiple international news outlets covered our work. The papers were accompanied with press-releases in Japanese and English languages (e.g., jointly with the American Geophysical Union or the University of Tokyo).

The signal-processing routines and methodology developed within these studies, as well as knowledge gained will be helpful for advancing our understanding of the rapidly changing polar environments through future projects.

備考

The above webpages were created for dissemination of some of our research results.

  • 研究成果

    (12件)

すべて 2021 2020 その他

すべて 雑誌論文 (5件) (うち国際共著 2件、 査読あり 5件、 オープンアクセス 5件) 学会発表 (4件) (うち国際学会 2件) 備考 (3件)

  • [雑誌論文] Co-seismic eruption and intermittent turbulence of a subglacial discharge plume revealed by continuous subsurface observations in Greenland2021

    • 著者名/発表者名
      Podolskiy Evgeny A.、Kanna Naoya、Sugiyama Shin
    • 雑誌名

      Communications Earth & Environment

      巻: 2 ページ: 1~16

    • DOI

      10.1038/s43247-021-00132-8

    • 査読あり / オープンアクセス
  • [雑誌論文] Thinning leads to calving-style changes at Bowdoin Glacier, Greenland2021

    • 著者名/発表者名
      van Dongen Eef C. H.、Jouvet Guillaume、Sugiyama Shin、Podolskiy Evgeny A.、Funk Martin、Benn Douglas I.、Lindner Fabian、Bauder Andreas、Seguinot Julien、Leinss Silvan、Walter Fabian
    • 雑誌名

      The Cryosphere

      巻: 15 ページ: 485~500

    • DOI

      10.5194/tc-15-485-2021

    • 査読あり / オープンアクセス / 国際共著
  • [雑誌論文] Rapidly changing glaciers, ocean and coastal environments, and their impact on human society in the Qaanaaq region, northwestern Greenland2021

    • 著者名/発表者名
      Sugiyama Shin、Kanna Naoya、Sakakibara Daiki、Ando Takuto、Asaji Izumi、Kondo Ken、Wang Yefan、Fujishi Yoshiki、Fukumoto Shungo、Podolskiy Evgeniy、and 26 others
    • 雑誌名

      Polar Science

      巻: 27 ページ: 100632~100632

    • DOI

      10.1016/j.polar.2020.100632

    • 査読あり / オープンアクセス / 国際共著
  • [雑誌論文] Ocean-Bottom Seismology of Glacial Earthquakes: The Concept, Lessons Learned, and Mind the Sediments2021

    • 著者名/発表者名
      Podolskiy Evgeny A.、Murai Yoshio、Kanna Naoya、Sugiyama Shin
    • 雑誌名

      Seismological Research Letters

      巻: XX ページ: 1~16

    • DOI

      10.1785/0220200465

    • 査読あり / オープンアクセス
  • [雑誌論文] Soundscape of a Narwhal Summering Ground in a Glacier Fjord (Inglefield Bredning, Greenland)2020

    • 著者名/発表者名
      Podolskiy Evgeny A.、Sugiyama Shin
    • 雑誌名

      Journal of Geophysical Research: Oceans

      巻: 125 ページ: e2020JC016116

    • DOI

      10.1029/2020JC016116

    • 査読あり / オープンアクセス
  • [学会発表] Dynamics of a subglacial meltwater plume revealed by continuous subsurface monitoring directly on the calving front2020

    • 著者名/発表者名
      Evgeny A. Podolskiy, Naoya Kanna, Shin Sugiyama
    • 学会等名
      EGU General Assembly 2020
    • 国際学会
  • [学会発表] Glacier tremors revealed by Ocean Bottom Seismometer in Greenland2020

    • 著者名/発表者名
      Evgeny A. Podolskiy, Yoshio Murai, Naoya Kanna, Shin Sugiyama
    • 学会等名
      JpGU-AGU Joint Meeting 2020
    • 国際学会
  • [学会発表] Multi-purpose ocean acoustic observations in a glacier fjord2020

    • 著者名/発表者名
      Evgeny A. Podolskiy
    • 学会等名
      ArCS-II Meeting
  • [学会発表] Listening to the language of Arctic unicorns and ice-quakes2020

    • 著者名/発表者名
      Evgeny A. Podolskiy
    • 学会等名
      Global ecosystem and environmental changes in the Arctic
  • [備考] グリーンランドで氷河ポンプの直接観測に成功~氷河前に湧き上がる融解水の実態を解明~

    • URL

      https://www.hokudai.ac.jp/news/2021/03/post-810.html

  • [備考] Revealing complex behavior of a turbulent plume

    • URL

      https://www.global.hokudai.ac.jp/blog/revealing-complex-behavior-of-a-turbulent-plume-at-the-calving-front-of-a-greenlandic-glacier/

  • [備考] RES. CAPTURE RARELY HEARD NARWHAL VOCALIZATIONS

    • URL

      https://news.agu.org/press-release/researchers-capture-rarely-heard-narwhal-vocalizations-video/

URL: 

公開日: 2021-12-27  

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