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Seismic noise as a proxy for glacier dynamics

Research Project

Project/Area Number 18K18175
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 63010:Environmental dynamic analysis-related
Research InstitutionHokkaido University

Principal Investigator

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

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywordsglacier / seismicity / noise / Greenland / Himalayas / Antarctica / Arctic / icequake / earthquake / acoustics / seismic noise / debris mantle / climate change / Himalaya / 氷河 / 雑微動 / スロー地震 / クレバス / 氷河のカービング
Outline of Final Research Achievements

Analysis of seismic records, accompanied by other observations near glaciers, offers a unique window into cryospheric processes. The project relied on and benefited from several previous and newly collected geophysical records collected by the PI and external colleagues on glaciers in Greenland, Antarctica, and Himalayas, known as the key glaciated areas of the world. Using such data, signal and image processing were performed, together with statistical, spectral and nonlinear time-series analysis and numerical modeling.

Thermal fracturing of ice was revealed by seismic noise. A co-seismic eruption of a subglacial discharge plume was discovered. A concept of using glacier-hydraulic acoustics for recognizing different englacial flow types was developed. Other cryoseismic signals and glacier-related processes were also studied during the project, such as due to a tide-modulated deformation and motion of ice. Results were published, presented, and highlighted by international news media.

Academic Significance and Societal Importance of the Research Achievements

As today climate change and sea-level rise are the key challenges for the society, it is crucial to have a better understanding of processes taking place in rapidly retreating glaciers around the world. Deeper understanding of seismicity at glaciers provides an opportunity to improve our knowledge.

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (36 results)

All 2021 2020 2019 2018 Other

All Int'l Joint Research (6 results) Journal Article (9 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 9 results,  Open Access: 9 results) Presentation (18 results) (of which Int'l Joint Research: 9 results,  Invited: 2 results) Remarks (3 results)

  • [Int'l Joint Research] Kathmandu University(ネパール)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] VAW, ETH-Zurich(スイス)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] Institut de Physique du Globe de Paris(フランス)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] Universidad Austral de Chile(チリ)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] GFZ German Res. Centre for Geosciences(ドイツ)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research]

    • Related Report
      2018 Research-status Report
  • [Journal Article] Co-seismic eruption and intermittent turbulence of a subglacial discharge plume revealed by continuous subsurface observations in Greenland2021

    • Author(s)
      Podolskiy Evgeny A.、Kanna Naoya、Sugiyama Shin
    • Journal Title

      Communications Earth & Environment

      Volume: 2 Issue: 1 Pages: 66-66

    • DOI

      10.1038/s43247-021-00132-8

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Thinning leads to calving-style changes at Bowdoin Glacier, Greenland2021

    • Author(s)
      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
    • Journal Title

      The Cryosphere

      Volume: 15 Issue: 2 Pages: 485-500

    • DOI

      10.5194/tc-15-485-2021

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Rapidly changing glaciers, ocean and coastal environments, and their impact on human society in the Qaanaaq region, northwestern Greenland2021

    • Author(s)
      Sugiyama Shin、Kanna Naoya、Sakakibara Daiki、Ando Takuto、Asaji Izumi、Kondo Ken、Wang Yefan、Fujishi Yoshiki、Fukumoto Shungo、Fukamachi Yasushi、Takahashi Minori、Matoba Sumito、Iizuka Yoshinori、Greve Ralf、Furuya Masato、Tateyama Kazutaka、Watanabe Tatsuya、Yamasaki Shintaro、Yamaguchi Atsushi、Nishizawa Bungo他
    • Journal Title

      Polar Science

      Volume: 27 Pages: 100632-100632

    • DOI

      10.1016/j.polar.2020.100632

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ocean-Bottom Seismology of Glacial Earthquakes: The Concept, Lessons Learned, and Mind the Sediments2021

    • Author(s)
      Podolskiy Evgeny A.、Murai Yoshio、Kanna Naoya、Sugiyama Shin
    • Journal Title

      Seismological Research Letters

      Volume: XX Issue: 5 Pages: 1-16

    • DOI

      10.1785/0220200465

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Soundscape of a Narwhal Summering Ground in a Glacier Fjord (Inglefield Bredning, Greenland)2020

    • Author(s)
      Podolskiy Evgeny A.、Sugiyama Shin
    • Journal Title

      Journal of Geophysical Research: Oceans

      Volume: 125 Issue: 5

    • DOI

      10.1029/2020jc016116

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Toward the Acoustic Detection of Two‐Phase Flow Patterns and Helmholtz Resonators in Englacial Drainage Systems2020

    • Author(s)
      Podolskiy Evgeny A.
    • Journal Title

      Geophysical Research Letters

      Volume: 47 Issue: 6 Pages: 1-10

    • DOI

      10.1029/2020gl086951

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Viscoelastic Modeling of Nocturnal Thermal Fracturing in a Himalayan Debris‐Covered Glacier2019

    • Author(s)
      Podolskiy Evgeny A.、Fujita Koji、Sunako Sojiro、Sato Yota
    • Journal Title

      Journal of Geophysical Research: Earth Surface

      Volume: 124 Issue: 6 Pages: 1485-1515

    • DOI

      10.1029/2018jf004848

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Tide-modulated ice motion and seismicity of a floating glacier tongue in East Antarctica2019

    • Author(s)
      Minowa Masahiro、Podolskiy Evgeny A.、Sugiyama Shin
    • Journal Title

      Annals of Glaciology

      Volume: 60 Issue: 79 Pages: 57-67

    • DOI

      10.1017/aog.2019.25

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Nocturnal thermal fracturing of a Himalayan debris‐covered glacier revealed by ambient seismic noise2018

    • Author(s)
      Podolskiy, E. A., K. Fujita, S. Sunako, A. Tsushima, and R.B. Kayastha
    • Journal Title

      Geophysical Research Letters

      Volume: 45 Issue: 18 Pages: 9699-9709

    • DOI

      10.1029/2018gl079653

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Dynamics of a subglacial meltwater plume revealed by continuous subsurface monitoring directly on the calving front2020

    • Author(s)
      Evgeny A. Podolskiy, Naoya Kanna, Shin Sugiyama
    • Organizer
      EGU General Assembly 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Glacier tremors revealed by Ocean Bottom Seismometer in Greenland2020

    • Author(s)
      Evgeny A. Podolskiy, Yoshio Murai, Naoya Kanna, Shin Sugiyama
    • Organizer
      JpGU-AGU Joint Meeting 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multi-purpose ocean acoustic observations in a glacier fjord2020

    • Author(s)
      Evgeny A. Podolskiy
    • Organizer
      ArCS-II Meeting
    • Related Report
      2020 Annual Research Report
  • [Presentation] Listening to the language of Arctic unicorns and ice-quakes2020

    • Author(s)
      Evgeny A. Podolskiy
    • Organizer
      Global ecosystem and environmental changes in the Arctic
    • Related Report
      2020 Annual Research Report
  • [Presentation] Sounds of narwhals in a glacier fjord2020

    • Author(s)
      Podolskiy E.
    • Organizer
      2020年ArCSテーマ2課題間連携会合, 北海道大学、函館市
    • Related Report
      2019 Research-status Report
  • [Presentation] Thermal fracturing on a Himalayan debris-covered glacier2019

    • Author(s)
      Podolskiy E.
    • Organizer
      EGU General Assembly 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Volcanic‐like long-period seismic events at a tidewater glacier in Greenland2019

    • Author(s)
      Podolskiy E.
    • Organizer
      EGU General Assembly 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Continuous and discrete ice-quakes due to fracture, slow slip and fluids2019

    • Author(s)
      Podolskiy E.
    • Organizer
      The International Statistical Seismology (StatSei) workshop
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] グリーンランドにおけるOBS(海底地震計)を用いた氷河地震とクジラの研究2019

    • Author(s)
      Podolskiy E.
    • Organizer
      第3回地震火山センター談話会, 北海道大学、札幌市
    • Related Report
      2019 Research-status Report
  • [Presentation] Listening to the language of unicorns and ice-quakes in Greenland2019

    • Author(s)
      Podolskiy E.
    • Organizer
      Seminar for Young Leaders from Alaska (Kakehashi project, MoFA), 北海道大学、札幌市
    • Related Report
      2019 Research-status Report
  • [Presentation] Ambient seismic noise に記録されたネパールヒマラヤのデブリ氷河における夜間の熱的破砕現象2019

    • Author(s)
      Podolskiy E.
    • Organizer
      北海道大学低温科学研究所共同利用研究集会 「気候変化に伴う質量収支と氷河変動に関する研究」
    • Related Report
      2018 Research-status Report
  • [Presentation] Ambient seismic noise at a Himalayan debris-covered glacier2018

    • Author(s)
      Podolskiy E.
    • Organizer
      JpGU Meeting 2018, Tokyo
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Nocturnal Thermal Fracturing of a Himalayan Debris-covered Glacier: Evidence from Ambient Seismic Noise and Numerical Modeling2018

    • Author(s)
      Podolskiy E.
    • Organizer
      AGU Fall Meeting 2018, Washington D.C.
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Nocturnal thermal fracturing of a Himalayan debris-covered glacier: Evidence from ambient seismic noise and numerical modelling2018

    • Author(s)
      Podolskiy E.
    • Organizer
      VAW/ETH-Zurich Seminar, Switzerland
    • Related Report
      2018 Research-status Report
  • [Presentation] Long-period seismic events and tremor at a tidewater glacier in Greenland2018

    • Author(s)
      Podolskiy E.
    • Organizer
      European Seismological Commission General Assembly 2018, Valetta
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Ambient seismic noise に記録されたネパールヒマラヤのデブリ氷河における夜間の熱的破砕現象2018

    • Author(s)
      Podolskiy E.
    • Organizer
      地震火山研究観測センター, 2018年度 第2 回談話会
    • Related Report
      2018 Research-status Report
  • [Presentation] Hydraulic Link between Glacier-dammed Lake and Meltwater Plume Revealed by Seismic Tremor, Time-lapse Imagery, Radar and Mooring2018

    • Author(s)
      Podolskiy E.
    • Organizer
      AGU Fall Meeting 2018, Washington D.C.
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Seismic symphony of a tidewater glacier: tide-modulated cracks, subglacial GLOFs, calving and sliding tremors2018

    • Author(s)
      Podolskiy E.
    • Organizer
      VAW/ETH-Zurich Seminar, Switzerland
    • Related Report
      2018 Research-status Report
  • [Remarks] 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

    • Related Report
      2020 Annual Research Report
  • [Remarks] 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/

    • Related Report
      2020 Annual Research Report
  • [Remarks] RES. CAPTURE RARELY HEARD NARWHAL VOCALIZATIONS

    • URL

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

    • Related Report
      2020 Annual Research Report

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Published: 2018-04-23   Modified: 2022-01-27  

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