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詳細
PODOLSKIY　EVGENY(ポドリスキ　エブゲニ)
北極域研究センター
准教授
researchmap個人ページ
Last Updated :2023/12/05

基本情報

通称等の別名

    Podolskiy Evgeny

所属

  • 北極域研究センター

職名

  • 准教授

学位

  • 理学博士（名古屋大学）

ホームページURL

科研費研究者番号

  • 80775536

ORCID ID

J-Global ID

研究キーワード

  • marine geophysics   icequake   soundscape   narwhal   hydro-acoustics   Patagonia   Antarctica   Himalaya   Greenland   雪氷   雪   雪崩   氷河   氷河地震   

研究分野

  • 環境・農学 / 環境動態解析 / glaciology, seismology, acoustics, geophysics

担当教育組織

職歴

  • 2021年10月 - 現在 北海道大学
  • 2019年04月 - 現在 The Cryosphere Editor
  • 2015年12月 - 2021年09月 Hokkaido University Arctic Research Center Assistant Professor
  • 2015年04月 - 2015年11月 Hokkaido University Institute of Low Temperature Science JSPS Research Fellow
  • 2012年06月 - 2014年06月 Joseph Fourier University IRSTEA Marie Curie Research Fellow
  • 2011年01月 - 2012年05月 Joseph Fourier University IRSTEA Postdoctoral Scholar
  • 2010年08月 - 2010年12月 Nagoya University Graduate School of Environmental Science Researcher

学歴

  • 2008年10月 - 2010年06月   Nagoya University   Graduate School of Environmental Studies   Ph.D.
  • 2003年09月 - 2005年06月   Moscow State University   Faculty of Geography   M.Sc.
  • 1999年09月 - 2003年06月   Moscow State University   Faculty of Geography   B.Sc.
  • 1996年09月 - 1999年06月   Lyceum of Information Technology #1533

研究活動情報

論文

  • Allison P. Lepp, Lauren E. Miller, John B. Anderson, Matt O'Regan, Monica C. M. Winsborrow, James A. Smith, Claus-Dieter Hillenbrand, Julia S. Wellner, Lindsay O. Prothro, Evgeny A. Podolskiy
    The Cryosphere Discussions 2023年06月20日 
    Abstract. Meltwater plume deposits (MPDs) from marine sediment cores have elucidated clearly connected, yet difficult to constrain, relationships between ice-marginal landform construction, grounding-zone retreat patterns, and subglacial hydrology for several glacial systems in both hemispheres. Few attempts have been made, however, to infer coveted details of subglacial hydrology, such as flow regime, drainage style, and mode(s) of sediment transport through time from grain-scale characteristics of MPDs. Using MPD, till, and ice-proximal diamicton samples collected offshore of six modern and relict glacial systems in both hemispheres, we examine whether grain-shape distributions and microtexture assemblages (collectively, grain micromorphology) of the silt fraction are the result of subglacial meltwater action, or are indistinguishable from glacial proximal and subglacial sediments from the same region. We find that of all grains imaged (n=9,400), three-quarters can be described by one-quarter of the full range of measured shape morphometrics, indicating widespread and efficient abrasive processes in subglacial environments. Microtexture analysis reveals that while grains comprising MPDs show evidence of edge rounding more often than tills, fluvial microtextures occur in modest amounts on grain surfaces. Furthermore, MPDs retain many mechanical (i.e., glacial) textures in comparable abundances to tills. Significant alteration of MPDs from till sources is observed for systems (1) for which intensive, potentially catastrophic, meltwater drainage events in the Holocene are inferred from marine geologic records, and (2) with comparatively less mature till grains and a contribution of supraglacial melt to the bed, indicating that quantifiable grain-shape alteration of MPDs may reflect a combination of young till, high-energy flow of subglacial meltwater, persistent sediment entrainment, and/or long sediment transport distances. We encourage future works to integrate grain micromorphology into site-specific marine sediment analyses, which may distinguish periods of persistent, well-connected subglacial discharge from periods of sporadic or disorganized drainage and provide context needed to estimate sediment fluxes and characterize ice response to subglacial meltwater transmission. In addition, this work demonstrates that glacial and fluvial surface textures are retained on silts in adequate abundance for microtexture analysis.
  • Evgeny Podolskiy, Takuro Imazu, Shin Sugiyama
    Geophysical Research Letters 50 e2023GL103235 2023年04月 [査読有り]
  • Podolskiy E.A
    The Circle 4 14 - 17 2023年01月 [招待有り]
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  • Evgeny A. Podolskiy, Mads Peter Heide-Jørgensen
    PLOS Computational Biology 18 9 e1010432 - e1010432 2022年09月22日 [査読有り]
     
    Detecting structures within the continuous diving behavior of marine animals is challenging, and no universal framework is available. We captured such diverse structures using chaos theory. By applying time-delay embedding to exceptionally long dive records (83 d) from the narwhal, we reconstructed the state-space portrait. Using measures of chaos, we detected a diurnal pattern and its seasonal modulation, classified data, and found how sea-ice appearance shifts time budgets. There is more near-surface rest but deeper dives at solar noon, and more intense diving during twilight and at night but to shallower depths (likely following squid); sea-ice appearance reduces rest. The introduced geometrical approach is simple to implement and potentially helpful for mapping and labeling long-term behavioral data, identifying differences between individual animals and species, and detecting perturbations.
  • E.N. Kazakova, E.A. Podolskiy, N.A. Kazakov
    Ice and Snow 62 1 99 - 112 2022年02月 [査読有り]
     
    Sakhalin Island and the Kuril Islands are among the most dangerous regions in Russia in terms of the impact of avalanches on the population and economics. The orographic conditions of Sakhalin Island and the Kuril Islands impose limitations on the selection of areas for housing settlements and economic enterprises, that is why many of them are situated in avalanche-prone zones. Sixty-three settlements of the region are located in such zones. The article provides the most complete recent information about catastrophic avalanches on Sakhalin Island and the Kuril Islands for the period from 1910 to 2020. During this time, 256 events of releases of the catastrophic avalanches were recorded; as a result of which 1203 people were injured, and 783 died. Information on the conditions when catastrophic avalanches release and their characteristics are presented. It was found that during this period cases of people being caught or deceased in avalanches took place in 72% of winters, and in 12% of them there were five or more catastrophic avalanches per season. The largest number of catastrophic avalanches released on the western coast of Southern Sakhalin, which was conditioned by significant economic development and the high avalanche activity on this area. Despite the large number of avalanche victims, engineering avalanche protection still exists on Sakhalin and the Kuril Islands only on a very limited number of sites, and avalanche prevention services are few and cannot provide an adequate level of avalanche safety on these territories.
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  • Evgeny A. Podolskiy, Yoshio Murai, Naoya Kanna, Shin Sugiyama
    The Journal of the Acoustical Society of America 151 1 6 - 16 2022年01月03日 [査読有り]
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  • Podolskiy, E. A
    EOS 102 2021年12月09日 
    The successful deployment of a seafloor seismometer near the calving front of a Greenland glacier has opened a new avenue to study hidden glacial processes and the behavior of fjord-dwelling wildlife.
  • Podolskiy, Evgeny
    EOS 102 2021年08月19日 [査読無し][招待有り]
  • Evgeny A. Podolskiy, Yoshio Murai, Naoya Kanna, Shin Sugiyama
    Nature Communications 12 1 3929 - 3929 2021年06月24日 [査読有り][通常論文]
     
    AbstractShearing along subduction zones, laboratory experiments on analogue faults, and sliding along glacier beds are all associated with aseismic and co-seismic slip. In this study, an ocean-bottom seismometer is deployed near the terminus of a Greenlandic tidewater glacier, effectively insulating the signal from the extremely noisy surface seismic wavefield. Continuous, tide-modulated tremor related to ice speed is recorded at the bed of the glacier. When noise interference (for example, due to strong winds) is low, the tremor is also confirmed via analysis of seismic waveforms from surface stations. The signal resembles the tectonic tremor commonly observed during slow-earthquake events in subduction zones. We propose that the glacier sliding velocity can be retrieved from the observed seismic noise. Our approach may open new opportunities for monitoring calving-front processes in one of the most difficult-to-access cryospheric environments.
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  • Yota Sato, Koji Fujita, Hiroshi Inoue, Sojiro Sunako, Akiko Sakai, Akane Tsushima, Evgeny A. Podolskiy, Rakesh Kayastha, Rijan B. Kayastha
    Frontiers in Earth Science 9 2021年06月04日 [査読有り]
     
    Ice cliffs can act as “hot spots” for melt on debris-covered glaciers and promote local glacier mass loss. Repeat high-resolution remote-sensing data are therefore required to monitor the role of ice cliff dynamics in glacier mass loss. Here we analyze high-resolution aerial photogrammetry data acquired during the 2007, 2018, and 2019 post-monsoon seasons to delineate and monitor the morphology, distribution, and temporal changes of the ice cliffs across the debris-covered Trakarding Glacier in the eastern Nepal Himalaya. We generate an ice cliff inventory from the 2018 and 2019 precise terrain data, with ice cliffs accounting for 4.7 and 6.1% of the debris-covered area, respectively. We observe large surface lowering (>2.0 m a−1) where there is a denser distribution of ice cliffs. We also track the survival, formation, and disappearance of ice cliffs from 2018 to 2019, and find that ∼15% of the total ice cliff area is replaced by new ice cliffs. Furthermore, we observe the overall predominance of northwest-facing ice cliffs, although we do observe spatial heterogeneities in the aspect variance of the ice cliffs (ice cliffs face in similar/various directions). Many new ice cliffs formed across the stagnant middle sections of the glacier, coincident with surface water drainage and englacial conduit intake observations. This spatial relationship between ice cliffs and the glacier hydrological system suggests that these englacial and supraglacial hydrological systems play a significant role in ice cliff formation.
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  • Evgeny A. Podolskiy, Yoshio Murai, Naoya Kanna, Shin Sugiyama
    Seismological Research Letters 92 5 1 - 16 2021年05月05日 [査読有り]
     
    Abstract About 70% of Earth’s surface is covered by ocean, for which seismic observations are challenging. Seafloor seismology overcame this fundamental difficulty and radically transformed the earth sciences, as it expanded the coverage of seismic networks and revealed otherwise inaccessible features. At the same time, there has been a recent increase in the number of studies on cryoseismology. These have yielded multiple discoveries but are limited primarily to land and ice-surface receivers. Near ice calving fronts, such surface stations are noisy, primarily due to crevassing and wind, are hazardous to maintain, and can be lost due to iceberg calving. To circumvent these issues, we have applied ocean-bottom seismology to the calving front of a tidewater glacier in northwest Greenland. We present details of this experiment, and describe the technical challenges, noise analysis, and examples of recorded data. This includes tide-modulated seismicity with thousands of icequakes per day and the first near-source (∼200–640  m) underwater record of a major kilometer-scale calving event in Greenland, which generated a glacial earthquake that was detectable ∼420  km away. We also identified a decrease in bottom-water temperature, presumably due to modified water stratification driven by extreme Greenland glacial melting, at the end of July 2019. Importantly, we identify glacial sediments as the key reason for the anomalously long (∼9.7  hr) delay in the sensor release from the fjord seafloor. Our study demonstrates a methodology to undertake innovative, interdisciplinary, near-source studies on glacier basal sliding, calving, and marine-mammal vocalizations.
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  • Evgeny A. Podolskiy, Naoya Kanna, Shin Sugiyama
    Communications Earth & Environment 2 66 1 - 16 2021年03月 [査読有り]
     
    AbstractIn the Arctic, subglacial discharge plumes have been recently recognised as a key driver of fjord-scale circulation. However, owing to the danger that accompanies prolonged observations at plumes, no time-series data are available. Here, we present results showing the chaotic and irregular dynamics of a plume revealed by continuous subsurface monitoring directly on the calving front of a Greenlandic glacier. We found intense fluctuations in the current and scalars (temperature and salinity), recognised shallow and deep tidal modulation and anomalies due to co-seismic drainage of an ice-dammed lake via the plume, and observed rapid and marked changes in stratification. Our analysis uncovers energy cascade intermittency with coherent structures, corresponding to upwelling pulses of warm water. Prior to our research, in situ evidence of time-variable plume dynamics was absent and limited to snapshots, therefore, our study and approach will enable researchers to transition from an episodic view of a plume to a continuously updated image.
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  • Shin Sugiyama, Naoya Kanna, Daiki Sakakibara, Takuto Ando, Izumi Asaji, Ken Kondo, Yefan Wang, Yoshiki Fujishi, Shungo Fukumoto, Evgeniy Podolskiy, Yasushi Fukamachi, Minori Takahashi, Sumito Matoba, Yoshinori Iizuka, Ralf Greve, Masato Furuya, Kazutaka Tateyama, Tatsuya Watanabe, Shintaro Yamasaki, Atsushi Yamaguchi, Bungo Nishizawa, Kohei Matsuno, Daiki Nomura, Yuta Sakuragi, Yoshimasa Matsumura, Yoshihiko Ohashi, Teruo Aoki, Masashi Niwano, Naotaka Hayashi, Masahiro Minowa, Guillaume Jouvet, Eef van Dongen, Andreas Bauder, Martin Funk, Anders Anker Bjørk, Toku Oshima
    Polar Science 27 100632 - 100632 2021年03月 [査読有り]
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  • Eef C. H. van Dongen, Guillaume Jouvet, Shin Sugiyama, Evgeny A. Podolskiy, Martin Funk, Douglas I. Benn, Fabian Lindner, Andreas Bauder, Julien Seguinot, Silvan Leinss, Fabian Walter
    The Cryosphere 15 2 485 - 500 2021年02月02日 [査読有り]
     
    Abstract. Ice mass loss from the Greenland ice sheet is the largest single contributor to sea level rise in the 21st century. The mass loss rate has accelerated in recent decades mainly due to thinning and retreat of its outlet glaciers. The diverse calving mechanisms responsible for tidewater glacier retreat are not fully understood yet. Since a tidewater glacier’s sensitivity to external forcings depends on its calving style, detailed insight into calving processes is necessary to improve projections of ice sheet mass loss by calving. As tidewater glaciers are mostly thinning, their calving styles are expected to change. Here, we study calving behaviour changes under a thinning regime at Bowdoin Glacier, north-western Greenland, by combining field and remote-sensing data from 2015 to 2019. Previous studies showed that major calving events in 2015 and 2017 were driven by hydro-fracturing and melt-undercutting. New observations from uncrewed aerial vehicle (UAV) imagery and a GPS network installed at the calving front in 2019 suggest ungrounding and buoyant calving have recently occurred as they show (1) increasing tidal modulation of vertical motion compared to previous years, (2) absence of a surface crevasse prior to calving, and (3) uplift and horizontal surface compression prior to calving. Furthermore, an inventory of calving events from 2015 to 2019 based on satellite imagery provides additional support for a change towards buoyant calving since it shows an increasing occurrence of calving events outside of the melt season. The observed change in calving style could lead to a possible retreat of the terminus, which has been stable since 2013. We therefore highlight the need for high-resolution monitoring to detect changing calving styles and numerical models that cover the full spectrum of calving mechanisms to improve projections of ice sheet mass loss by calving.
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  • Podolskiy E.A., Sugiyama S.
    Journal of Geophysical Research: Oceans 2020年04月 [査読有り][通常論文]
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  • Podolskiy E.A.
    Geophysical Research Letters 47 e2020GL086951 n/a - n/a 2020年03月 [査読有り][通常論文]
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  • 佐藤 洋太, 藤田 耕史, 井上 公, 砂子 宗次朗, 坂井 亜規子, 對馬 あかね, Podolskiy Evgeny, Berthier Etienne, Kayastha Rakesh, Kayastha Rijan
    雪氷研究大会講演要旨集 2020 129 - 129 公益社団法人 日本雪氷学会／日本雪工学会 2020年
  • Minowa M, Podolskiy E, Sugiyama S
    Annals of Glaciology 60 79 n/a - n/a 2019年05月 [査読有り][通常論文]
     
    We recorded the ice motion and icequakes on the floating part of Langhovde Glacier in East Antarctica to better understand the dynamic behavior of ice shelves and floating tongues. Diurnal and semi-diurnal variations in ice motion and seismicity were simultaneously observed at all four global navigation satellite system and three seismic stations over 2 weeks. The short-term along-flow ice motion is explained by the elastic response of the glacier to ocean tide-induced hydrostatic stress variations, which decayed at a rate of 0.8 km(-1) toward the grounding line. We observed a large number of icequakes during mid-rising and high tides that covered a broad frequency range and formed two major groups of events centered at 10 and 120 Hz, respectively. The hourly occurrence rates were similar to 500 events h(-1), with the observed seismicity consistent with fracture due to floating tongue bending. We also observed minor secondary peaks at high ice speeds, which could reflect surface cracking due to stretching or basal friction. Our observation demonstrates that tidal-modulation was the main factor to fracture the floating tongue of Langhovde Glacier.
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  • Podolskiy Evgeny
    Journal of Geophysical Research 124 6 n/a - n/a 2019年05月 [査読有り][通常論文]
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  • Minowa, M, E.A. Podolskiy, G. Jouvet, Y. Weidmann, D. Sakakibara, S. Tsutaki, R. Genco, S. Sugiyama
    Earth and Planetary Science Letters 515 283 - 290 2019年04月 [査読有り][通常論文]
     
    Measuring glacier calving magnitude, frequency and location in high temporal resolution is necessary to understand mass loss mechanisms of ocean-terminating glaciers. We utilized calving-generated tsunami signals recorded with a pressure sensor for estimating the calving flux of Bowdoin Glacier in northwestern Greenland. We find a relationship between calving ice volume and wave amplitude. This relationship was used to compute calving flux variation. The calving flux showed large spatial and temporal fluctuations in July 2015 and in July 2016, with a mean flux of 2.3 +/- 0.15 x 10(5) m(3) d(-1). Calving flux was greater during periods of fast ice flow, high air temperature, and at low/falling tide, indicating the importance of increased longitudinal strain due to glacier acceleration and/or submarine melting at the calving front. Long-term measurements with the method introduced here are promising for understanding the complex interplay of ice dynamics, melting and calving at glacier fronts. (C) 2019 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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  • 佐藤 洋太, 藤田 耕史, 井上 公, 砂子 宗次朗, 坂井 亜規子, 對馬 あかね, Evgeny Podolskiy, Etienne Berthier, Kayastha Rijan B.
    雪氷研究大会講演要旨集 2019 16  公益社団法人 日本雪氷学会／日本雪工学会 2019年
  • De Biagi, V, Barbero, M, Barpi, M, Borri-Brunetto, M, E. Podolskiy
    European Journal of Mechanics / A Solids 74 26 - 33 2018年10月 [査読有り][通常論文]
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  • Podolskiy, E. A, Fujita, K, Sunako, S, Tsushima, A, Kayastha, R
    Geophysical Research Letters 45 9699 - 9709 2018年08月 [査読有り][通常論文]
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  • Masahiro Minowa, Evgeny A. Podolskiy, Shin Sugiyama, Daiki Sakakibara, Pedro Skvarca
    Journal of Glaciology 64 245 362 - 376 2018年06月01日 [査読有り][通常論文]
     
    Calving plays a key role in the recent rapid retreat of glaciers around the world. However, many processes related to calving are poorly understood since direct observations are scarce and challenging to obtain. When calving occurs at a glacier front, surface-water waves arise over the ocean or a lake in front of glaciers. To study calving processes from these surface waves, we performed field observations at Glaciar Perito Moreno, Patagonia. We synchronized time-lapse photography and surface waves record to confirm that glacier calving produces distinct waves compared with local noise. A total of 1074 calving events were observed over the course of 39 d. During austral summer, calving occurred twice more frequently than in spring. The cumulative distribution of calving-interevent time interval followed exponential model, implying random occurrence of events in time. We further investigated wave properties and found that source-to-sensor distance can be estimated from wave dispersion within ∼20% error. We also found that waves produced by different calving types showed similar spectra in the same frequency range between 0.05-0.2 Hz, and that the amplitude of surface waves increased with the size of calving. This study demonstrates the potential of surface-wave monitoring for understanding calving processes.
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  • Sugiyama, S, Tsutaki, S, Sakakibara, D, Saito, J, Ohashi, Y, Katayama, N, Podolskiy, E, Matoba, S, Funk, M, Genco, R
    Low Temperature Science 75 1 - 13 低温科学第75巻編集委員会 2017年03月 [査読無し][通常論文]
     
    The Greenland ice sheet and peripheral ice caps are rapidly losing mass. This mass change hasbeen captured by satellite remote sensing, but more detailed investigations are necessary tounderstand the spatiotemporal variations and mechanism of the ice loss. It has increased particularlyin northwestern Greenland, but in-situ data for northern Greenland are generally sparse. To betterunderstand the ice mass loss in northwestern Greenland, we studied the ice sheet, ice caps and calvingglaciers in the Qaanaaq region, as a part of the Green Network of Excellence (GRENE) Arctic ClimateChange Research Project. Field and satellite observations were performed to measure the mass lossof the ice caps and calving glaciers in the region. Detailed processes were investigated based on fieldmeasurements to understand mechanisms driving the ice loss. The field activities include massbalance monitoring on Qaanaaq Ice Cap since 2012, integrated field observations near the front ofBowdoin Glacier since 2013 and ocean measurements near the calving glaciers. In this contribution,we summarize the results of the GRENE Greenland project, and introduce an overview of the nextproject to be carried out under the framework of the Arctic Challenge for Sustainability Project(ArCS).
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  • Podolskiy Evgeny
    Low Temperature Science 75 15 - 36 低温科学第75巻編集委員会 2017年03月 [査読無し][招待有り]
     
    Outlet glaciers in Greenland have retreated and lost mass over the past decade. Understandingthe dynamics of tidewater glaciers is crucial for forecasting sea-level rise and for understanding thefuture of the Greenland Ice Sheet, given the buttressing support that tidewater glaciers provide toinland ice. However, the mechanisms controlling glacier-front location and the role played byexternal forcings (e.g., meltwater input and tidal oscillation) in basal motion and fracture formationleading to iceberg calving are poorly understood. Today it is known that glaciers generate seismicand infrasound signals that are detectable at local and teleseismic distances and can be used to monitorglacier dynamics. Here, we present examples of data recorded by a temporary network of seismicand infrasound instruments deployed at a tidewater glacier (Bowdoin Glacier, Greenland) in July 2015.Some stations were installed on ice at distances as close as ～ 250 m from the calving front,representing the closest deployments to the calving front that have been made to date. Multipleseismic and infrasound events were recorded by five seismic and six infrasound sensors, and linked tosurface crevassing, calving, and ice-cliff collapses, and presumably also hydrofracturing, icebergrotations, teleseismic earthquakes, and helicopter-induced tremors. Using classic seismological andarray analysis approaches (e.g., "short-term averaging/long-term averaging" and "f-k" analysis), as wellas image processing techniques, we explore this unique dataset to understand the glacial response toexternal forcings. Our observations, supported by GPS measurements of ice velocity, local weatherstationrecords, and time-lapse photography, provide a valuable resource for studying seismogenicglacial processes and their dependence on ocean tides and other environmental factors.
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  • Evgeny A. Podolskiy, Fabian Walter
    REVIEWS OF GEOPHYSICS 54 4 708 - 758 2016年12月 [査読有り][招待有り]
     
    The last decade witnessed an explosion in yearly number of publications on passive glacier seismology. The seismic signals from a wide range of glacier-related processes fill a broad band of frequencies (from 10(-3) to 10(2) Hz) and moment magnitudes (from M-3 to M7) providing a fresh and unprecedented view on fundamental processes in the cryosphere. New insights into basal motion, iceberg calving, glacier, iceberg, and sea ice dynamics, and precursory signs of unstable glaciers and ice structural changes are being discovered with seismological techniques. These observations offer an invaluable foundation for understanding ongoing environmental changes and for future monitoring of ice bodies worldwide. In this review we discuss seismic sources in the cryosphere as well as research challenges for the near future. The field of glacier seismology is evolving so rapidly that some parts of this review will likely soon be outdated. Nevertheless, given an overwhelming number of recent publications and rapidly growing seismic data volumes provided by modern seismic installations in polar and mountain regions, this introduction to cryosphere seismicity aims to serve as a timely and comprehensive reference for glaciologists and seismologists.
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  • Evgeny A. Podolskiy, Shin Sugiyama, Martin Funk, Fabian Walter, Riccardo Genco, Shun Tsutaki, Masahiro Minowa, Maurizio Ripepe
    GEOPHYSICAL RESEARCH LETTERS 43 5 2036 - 2044 2016年03月 [査読有り][通常論文]
     
    Glacier microseismicity is a promising tool to study glacier dynamics. However, physical processes connecting seismic signals and ice dynamics are not clearly understood at present. Particularly, the relationship between tide-modulated seismicity and dynamics of calving glaciers remains elusive. Here we analyze records from an on-ice seismometer placed 250m from the calving front of Bowdoin Glacier, Greenland. Using high-frequency glacier flow speed measurements, we show that the microseismic activity is related to strain rate variations. The seismic activity correlates with longitudinal stretching measured at the glacier surface. Both higher melt rates and falling tides accelerate glacier motion and increase longitudinal stretching. Long-term microseismic monitoring could therefore provide insights on how a calving glacier's force balance and flow regime react to changes at the ice-ocean interface.
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  • Evgeny A. Podolskiy, Valentina A. Lobkina, Yuri V. Gensiorovsky, Emmanuel Thibert
    COLD REGIONS SCIENCE AND TECHNOLOGY 114 44 - 60 2015年06月 [査読有り][通常論文]
     
    Systematic snow disposal from street cleaning operations may create large anthropogenic snow/ice bodies. Such man-made cryospheric objects may be considered as complex geophysical interfaces between the atmosphere, landscape, soils and hydrosphere. Urban snow patches not only produce large amounts of meltwater (and therefore a risk of flooding), but also serve as multiphase chemical reactors due to highly polluted mixture of snow/ice with various materials and water inclusions. However, the exact roles of snow patches in the environment and the factors driving their temporal evolution remain unclear. They are nevertheless of major importance for informed decision making and sustainable disposal operations. Here we present the results of a 4-year monitoring program concerning two artificial snow patches near the town of Yuzhno-Sakhalinsk (Russia) and the results of numerical modeling inferring the main corresponding processes, i.e. melting and water discharges. The temperature-based index method proved adequate to assess the evolution of the two snow patches. Constant ablation factors of about 0.45-0.58 and 0.27-0.31 cm w.e. d(-1) degrees C-1, respectively, were found to be appropriate for a first order approximation of snow patch melt dynamics. However, twice lower melt rates were found for one of the two closely located snow patches. This suggests that other factors, such as debris content, likely play a role. This difference in melting can be accounted for by modulating the ablation factor according to debris properties. In terms of peak daily water discharge, snow patch melting produces about 5-15 cm w.e. per day, comparable to rain rates during regional typhoons. This study represents a starting point that should be followed by a more detailed monitoring program and the application of a more complex numerical model of snow disposal sites, to allow optimization of their maintenance. For example, marginal melting or the combined influence of debris and soils on surface runoff should be further investigated. Moreover, better constrained and formulated chemical processes will allow a more reliable estimate of the local environmental impact of regular snow disposal. (C) 2015 The Authors. Published by Elsevier B.V.
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  • E. A. Podolskiy, G. Chambon, M. Naaim, J. Gaume
    NATURAL HAZARDS AND EARTH SYSTEM SCIENCES 15 1 119 - 134 2015年 [査読有り][通常論文]
     
    Snowpack weak layers may fail due to excess stresses of various natures, caused by snowfall, skiers, explosions or strong ground motion due to earthquakes, and lead to snow avalanches. This research presents a numerical model describing the failure of "sandwich" snow samples subjected to shaking. The finite element model treats weak layers as interfaces with variable mechanical parameters. This approach is validated by reproducing cyclic loading snow fracture experiments. The model evaluation revealed that the Mohr-Coulomb failure criterion, governed by cohesion and friction angle, was adequate to describe the experiments. The model showed the complex, non-homogeneous stress evolution within the snow samples and especially the importance of tension on fracture initiation at the edges of the weak layer, caused by dynamic stresses due to shaking. Accordingly, a simplified analytical solution, ignoring the inhomogeneity of tangential and normal stresses along the failure plane, may incorrectly estimate the shear strength of the weak layers. The values for "best fit" cohesion and friction angle were approximate to 1.6 kPa and 22.5-60 degrees. These may constitute valuable first approximations in mechanical models used for avalanche forecasting.
    ダウンロード
  • Evgeny A. Podolskiy, Kaoru Izumi, Vladimir E. Suchkov, Nicolas Eckert
    JOURNAL OF GLACIOLOGY 60 221 409 - 430 2014年 [査読有り][通常論文]
     
    The analysis of historical avalanche data is important when developing accurate hazard maps. The record of snow-avalanche disasters on Sakhalin and the Kuril Islands is incomplete, due to the historical division into periods of Japanese and Russian rule. Here we combine and analyze data from Japanese and Russian sources to reconstruct a continuous record of avalanche catastrophes in the region from 1910 to 2010. Despite the relatively small scale of the majority of catastrophic avalanches, with a total vertical drop <200 m, we document evidence that places the region among the most avalanche-affected areas in the world. In total, 756 fatalities and >238 injuries have occurred in 275 incidents over a 100 year period (two-thirds of those killed were Japanese). This death toll is higher than that in Canada, New Zealand or Iceland, or non-recreational fatalities in France. A wave of avalanche disasters (1930s-60s) following intense colonization of Sakhalin and the Kuril Islands is evident. Although this 'wave' could be considered a local issue of the past, many presently developing countries may face similar situations. The fatality rate has decreased over time, due to social factors, and differs from that of any other region, in its absence of deaths through recreational activities. Although in recent years the fatality rate is lower than that of Iceland or the USA, the per capita avalanche casualty rate on Sakhalin and the Kuril Islands remains among the highest in the world.
    ダウンロード
  • E. A. Podolskiy, M. Barbero, F. Barpi, G. Chambon, M. Borri-Brunetto, O. Pallara, B. Frigo, B. Chiaia, M. Naaim
    CRYOSPHERE 8 5 1651 - 1659 2014年 [査読有り][通常論文]
     
    Natural sintering in ice is a fundamental process determining mechanical properties of various ice forms. According to the literature, limited data are available about the complex subjects of snow sintering and bond formation. Here, through cold laboratory mechanical tests with a new shear apparatus we demonstrate time-dependent effects of isothermal sintering on interface strengthening at various normal pressures. Measurements showed that interfacial strength evolved rapidly, conforming to a power law ( mean exponent approximate to 0.21); higher pressure corresponded to higher initial strength and sintering rates. Our findings are consistent with observations on homogeneous snow, provide unique records essential for slope stability models and indicate the significant importance of normal load on data interpretation.
    ダウンロード
  • Podolskiy, E. A, M. Barbero, F. Barpi, M. Borri-Brunetto, O. Pallara, B. Chiaia, G. Chambon, M. Naaim
    Proceedings of the International Snow Science Workshop A7270EP 1049 - 1051 2013年10月 [査読無し]
    ダウンロード
  • Podolskiy, E. A, K. Izumi, V. E. Suchkov, N. Eckert
    Proceedings of the International Snow Science Workshop A7045EP 1135 - 1137 2013年10月 [査読無し]
    ダウンロード
  • E. A. Podolskiy, G. Chambon, M. Naaim, J. Gaume
    JOURNAL OF GLACIOLOGY 59 218 1189 - 1201 2013年 [査読有り][通常論文]
    ダウンロード
  • Podolskiy, E. A, Chambon, G, Naaim, M, Gaume, J
    Proceedings of the International Snow Science Workshop 617 - 621 2012年09月 [査読無し]
    ダウンロード
  • Evgeny Andreevich Podolskiy, Bjorn Egil Kringlebotn Nygaard, Kouichi Nishimura, Lasse Makkonen, Edward Peter Lozowski
    JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 117 1 2012年06月 [査読有り][通常論文]
     
    A mesoscale atmospheric model, the Weather Research and Forecasting model (WRF), was used for a case study that reconstructs mid-spring episodes of rime formation at Mt. Zao, Japan. One particularly interesting and rare form of rime was observed. The formations were feathery, opaque aggregates of granular ice 15-30 cm long, called "shrimp tails" in Japanese. Based on an analysis of model-generated results, we find good quantitative agreement of modeled and observed wind and temperature time series at Jizosancho ropeway station. We identified two icing events (lasting for 36 and 41 h respectively, with surface air temperatures between -6.3 degrees and -0.1 degrees C, relatively constant westerly winds up to 26 m s(-1), and maximum cloud liquid water contents (LWC) between 0.72 and 1.05 g m(-3)). We confirmed that high-resolution modeling (1.1 km grid spacing) was much more accurate than simulations with coarser grids (10 and 3.3 km). The LWC during the formation period of this rare type of icing was estimated for the first time using the WRF model at Mt. Zao, and it was found to be up to several times higher than values previously used in experimental studies. We found that the joint wind speed-air temperature distribution for this type of "tail" rime was more similar to that of a hard rime or glaze, than to a soft rime. We explain the formation of "shrimp tails" by wind impact angle and report previously made laboratory results on its effect on the droplet collision efficiency and the density of rime ice.
    ダウンロード
  • Podolskiy E
    Science. 2012年06月 [査読無し][通常論文]
     
    Podolskiy, E, 2012, 'Perspective: Learning from Others' Mistakes', <i>Science</i>.
  • Podolskiy, E. A, B. E. K. Nygaard
    Proceedings of the 14th International Workshop on Atmospheric Icing of Structures 55 2011年05月 [査読無し]
    ダウンロード
  • Evgeny A. Podolskiy, Kouichi Nishimura, Osamu Abe, Pavel A. Chernous
    JOURNAL OF GLACIOLOGY 56 197 431 - 446 2010年 [査読有り][通常論文]
     
    Strong ground motions caused by earthquakes can induce catastrophic avalanches. Massive snow avalanching has also been observed on slopes near quarries and underground mines where ground motions are produced by explosives. To address a lack of information regarding seismogenic snow avalanches, we have compiled an inventory to document case histories. For the period 1899-2010, 22 cases are identified worldwide, related to natural or artificial seismicity with magnitudes of 1.9 <= M(w) <= 9.2 and source-to-site distances of similar to 0.2-640 km. In the extreme case, many thousands of simultaneously released large-scale avalanches have been reported. The obtained distribution and variety of parameters are discussed and compared with earthquake-induced landslides and ice avalanches; the results are similar among these three types of failure events, although all data derived from statistical analyses (i.e. non-witnessed cases) represent outliers, suggesting a significant reduction in the threshold magnitudes proposed for landslides. This proposal could be verified by the collection of additional data.
    ダウンロード
  • Evgeny A. Podolskiy, Kouichi Nishimura, Osamu Abe, Pavel A. Chernous
    JOURNAL OF GLACIOLOGY 56 197 447 - 458 2010年 [査読有り][通常論文]
     
    We conducted experiments on the stability of snow, subjecting snow to vibrations, with the aim of improving our understanding of poorly studied mechanisms behind the triggering of avalanches during earthquakes. Most experiments were carried out on a specially constructed shaking table using artificial snowpacks containing a weak layer. Accelerations in the snow samples were measured using high-frequency sensors, enabling calculation of vibration-induced stresses within the snow at the moment of fracture. We used a high-speed camera to film different types of fracturing. In all cases, the vibrations caused failure of the snow by fracturing along the weak layer or at the base of the snow sample. An additional inertial stress induced by accelerations normal to the shear plane was quantified. We find that this stress can be related to smaller values of the shear strength in snow.
    ダウンロード
  • Barashev, N, Podolskiy, E, Chernous, P, Abe, O, K. Nishimura
    Data of Glaciological Studies 107 115 - 119 2009年01月 [査読有り]
  • 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, Evgeniy PODOLSKIY, 鈴木 貴, 村上 茂樹, 遠藤 八十一
    雪氷 71 3 167 - 176 2009年 [査読有り]
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  • Evgeny A. Podolskiy
    EARTH INTERACTIONS 13 4 1 - 14 2009年 [査読有り][通常論文]
     
    A covariation of recent global environmental changes and seismicity on Earth is demonstrated. Presently, rising concern about anthropogenic activities and their consequences on the cryosphere and environment have always overlooked changes related to future tectonic activity. Possible factors affecting an increase in the number of earthquakes and volcanic eruptions are reviewed and discussed.
    ダウンロード
  • Podolskiy E
    Data of Glaciological Studies 103 213 - 221 2007年 [査読有り][通常論文]
     
    This paper is dedicated to the 200th anniversary of Professor Jean Louis Rodolphe Agassiz (May, 28, 1807 – December, 14, 1873) and briefly outlines his biography and scientific heritage. This noble Swiss-born naturalist left a distinct imprint on glaciology, ichthyology, zoology and paleontology, founded the Museum of Comparative Zoology of Harvard University (1859) and contributed to the organization of the National Academy of Sciences of the USA (1863). His pioneer work was a milestone for the beginning of a new branch of science — experimental glaciology.
    ダウンロード
  • Vikulina, М, Mokrov, E.G, Podolskiy, E. A, Seliverstov, Yu.G, M. Lehning
    Data of Glaciological Studies 99 105 - 107 2005年01月 [査読有り]

講演・口頭発表等

  • Hydroacoustics in Greenland  [招待講演]
    Evgeny Podolskiy
    Glacier acoustics and glacier-ocean interactions 2023年09月 口頭発表（招待・特別） International Partnership for Acoustical mOnitoring of Glaciers (IPA OMG)
  • Environmental acoustics
    Evgeny Podolskiy
    Ice-sheet research from different angles: mathematical, physical, environmental and societal aspects 2023年07月 口頭発表（一般）
  • Glacial tremor and slip  [招待講演]
    Evgeny Podolskiy
    「地震活動の物理」２０２２年度 研究集会 2023年03月 口頭発表（招待・特別） University of Tokyo
  • Bird-colony dynamics revealed by sound monitoring (Siorapaluk, Greenland)
    E.A. Podolskiy, M. Ogawa, J.-B. Thiebot
    The Seventh International Symposium on Arctic Research (ISAR-7) 2023年03月 口頭発表（一般）
  • Evgeny Podolskiy
    第37回 北方圏国際シンポジウム「オホーツク海と流氷」2023 2023年02月 口頭発表（基調）
  • Evgeny Podolskiy, Yoshio Murai, Naoya Kanna, Shin Sugiyama
    AGU Fall Meeting 2022 2022年12月 口頭発表（招待・特別） McCormick Place Convention Center AGU
  • Detecting patterns in animal behavior
    Evgeny Podolskiy
    About active matter symposium 2022年11月 口頭発表（一般）
  • 海洋生物：フィヨルドでイッカククジラを追う
    ポドリスキ・エヴゲニ
    中央大学附属高等学校特別講義 2022年10月 口頭発表（一般）
  • 水中の氷河地震学  [通常講演]
    ポドリスキ エヴゲニ, 村井芳夫, 漢那直也, 杉山真
    雪氷研究大会(2022・札幌) 2022年10月 口頭発表（一般）
  • Summer with narwhals, the unicorns of the sea  [通常講演]
    Evgeny Podolskiy
    Arctic Research Center Monthly Seminar 2022年09月 口頭発表（一般）
  • Listening to glaciers and whales with seafloor seismology  [通常講演]
    Evgeny Podolskiy, Yoshio Murai, Naoya Kanna, Shin Sugiyama
    British Seismology Meeting (BSM22: New advances in multi-disciplinary seismology) 2022年09月 口頭発表（一般）
  • Eavesdropping on glaciers and whales with seafloor seismology  [通常講演]
    Evgeny Podolskiy, Yoshio Murai, Naoya Kanna, Shin Sugiyama
    The Third European Conference on Earthquake Engineering and Seismology (3ECEES) 2022年09月 口頭発表（一般）
    ダウンロード
  • Chaos theory reveals the diving behaviors of a whale  [通常講演]
    Evgeny Podolskiy, M.P. Heide-Jørgensen
    Fundamentals of Active Matter across Scales for Novel Materials 2022年05月 口頭発表（一般）
  • Rigopiano snow-avalanche controversy（Italy,18 Jan 2017）  [通常講演]
    ポドリスキ エヴゲニ
    2022雪氷学会北海道支部研究発表会 2022年05月 口頭発表（一般）
  • Continuous glacial tremor and slip revealed by ocean-bottom and surface seismometers
    Podolskiy, E, Murai, Y, Kanna, N, Sugiyama, S
    International Joint Workshop on Slow Earthquakes 2021 2021年09月 口頭発表（一般）
  • Sounds of ice, whales, and humans in Greenland  [招待講演]
    Podolskiy, E
    ArCS II the 2nd plenary meeting 2021年06月 口頭発表（招待・特別）
  • Podolskiy. E. A
    IARC-ARC Joint Seminar 2021年06月 口頭発表（一般） online IARC (UAF) - ARC (HU)
     
    With climate change ongoing, the Arctic has exhibited some of the most dramatic changes in land, atmosphere, and ocean systems. This seminar series aims to promote international collaboration between the International Arctic Research Center at the University of Alaska Fairbanks (IARC/UAF) and the Arctic Research Center at Hokkaido University (ARC/HU) primarily focused on ocean sciences. Speakers and participants from other research institutions are also welcome.
  • Glacier and whale monitoring with an Ocean-Bottom Seismometer at the calving front  [通常講演]
    Podolskiy, E, Murai, Y, Kanna, N, Sugiyama, S
    Japan Geoscience Union Meeting 2021 2021年06月 口頭発表（一般）
  • Ocean‐Bottom Seismology of Glacial Earthquakes  [通常講演]
    Podolskiy, E, Murai, Y, Kanna, N, Sugiyama, S
    第1回地震火山センター談話会 2021年04月 口頭発表（一般）
  • Listening to the language of Arctic unicorns and ice-quakes  [招待講演]
    Global ecosystem and environmental changes in the Arctic 2020年12月 口頭発表（一般）
  • Multi-purpose ocean acoustic observations in a glacier fjord
    Evgeny Podolskiy
    ArCS-II Meeting 2020年08月 口頭発表（一般）
  • Glacier tremors revealed by Ocean Bottom Seismometer in Greenland
    Evgeny Podolskiy, Yoshio Murai, Naoya Kanna, Shin Sugiyama
    JpGU-AGU Joint Meeting 2020 2020年07月 口頭発表（一般）
  • Dynamics of a subglacial meltwater plume revealed by continuous subsurface monitoring directly on the calving front
    Evgeny Podolskiy, Naoya Kanna, Shin Sugiyama
    EGU General Assembly 2020 2020年05月 口頭発表（一般）
  • Sounds of narwhals in a glacier fjord
    Podolskiy E.A.
    2020年ArCSテーマ2課題間連携会合 2020年02月 口頭発表（一般）
  • Listening to the language of unicorns and ice-quakes in Greenland  [通常講演]
    Podolskiy Evgeny
    Seminar for Young Leaders from Alaska (Kakehashi project, MoFA) 2019年12月 公開講演，セミナー，チュートリアル，講習，講義等
  • 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  [通常講演]
    Podolskiy Evgeny
    第３回地震火山センター談話会 2019年10月 口頭発表（一般）
  • Continuous and discrete ice-quakes due to fracture, slow slip and fluids  [招待講演]
    Podolskiy Evgeny
    The International Statistical Seismology (StatSei) workshop 2019年08月 口頭発表（招待・特別）
  • Volcanic‐like long-period seismic events at a tidewater glacier in Greenland  [通常講演]
    Podolskiy Evgeny
    EGU General Assembly 2019 2019年04月 口頭発表（一般）
  • Thermal fracturing on a Himalayan debris-covered glacier  [招待講演]
    Podolskiy Evgeny
    EGU General Assembly 2019 2019年04月 口頭発表（招待・特別）
  • Hydro-acoustic monitoring of mammals and ice dynamics in Greenland  [通常講演]
    Podolskiy Evgeny
    ArCS合同セミナー (テーマ２とテーマ６)、北海道大学水産学部、函館 2019年03月 口頭発表（一般）
  • Podolskiy Evgeny
    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」 2019年01月 口頭発表（一般）
  • Nocturnal Thermal Fracturing of a Himalayan Debris-covered Glacier: Evidence from Ambient Seismic Noise and Numerical Modeling  [通常講演]
    Podolskiy Evgeny
    AGU Fall Meeting 2018 2018年12月 口頭発表（一般）
  • Hydraulic Link between Glacier-dammed Lake and Meltwater Plume Revealed by Seismic Tremor, Time-lapse Imagery, Radar and Mooring  [通常講演]
    Podolskiy Evgeny
    AGU Fall Meeting 2018 2018年12月 口頭発表（一般）
  • 氷河末端の係留観測で明らかになった氷河融解水プルームによる乱流中のエネ ルギーカスケード  [通常講演]
    Podolskiy Evgeny
    ArCS氷河氷床・海洋相互作用課題 第2回会合 2018年11月 口頭発表（一般）
  • Nocturnal thermal fracturing of a Himalayan debris-covered glacier: Evidence from ambient seismic noise and numerical modelling  [通常講演]
    Podolskiy Evgeny
    Glaciological Seminar, VAW/ETH-Zurich 2018年10月
  • Seismic symphony of a tidewater glacier: tide-modulated cracks, subglacial GLOFs, calving and sliding tremors  [通常講演]
    Podolskiy Evgeny
    Glaciological Seminar, VAW/ETH-Zurich 2018年09月
  • Long-period seismic events and tremor at a tidewater glacier in Greenland  [通常講演]
    Podolskiy Evgeny
    European Seismological Commission General Assembly 2018 2018年09月 口頭発表（一般）
  • 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  [通常講演]
    Podolskiy Evgeny
    地震火山研究観測センター, 2018年度 第2 回談話会 2018年07月
  • Ambient seismic noise at a Himalayan debris-covered glacier  [通常講演]
    Podolskiy Evgeny
    Japan Geoscience Union Meeting 2018年05月
  • Seismic noise as a treasure mountain for a glaciologist  [通常講演]
    Podolskiy Evgeny
    地震火山研究観測センター, 2017年度 第４ 回談話会 2018年01月
  • Seismic noise as a proxy for glacier dynamics  [通常講演]
    Podolskiy Evgeny
    5th International Symposium on Arctic Research (ISAR-5) 2018年01月 口頭発表（一般）
  • 雑微動: 地震学者の頭痛の種氷河学者にとっては宝の山  [通常講演]
    Podolskiy Evgeny
    グリンランド氷床における近年の質量損失の実態解明 2017年11月

その他活動・業績

共同研究・競争的資金等の研究課題

  • スケール横断的なアクティブマターの動作原理解明とそれに基づく新物質の創出
    北海道大学：創成特定研究事業
    研究期間 : 2022年04月 -2024年03月 
    代表者 : 角五, 住野, 西上, Evgeny Podolskiy, 景山
  • Underwater seismology and acoustics for environmental studies in cold regions
    創成若手研究加速支援事業 北海道大学：SOUSEI Support Program for Young Researchers
    研究期間 : 2021年08月 -2022年03月
  • Hydro-acoustic monitoring in Greenland
    Hokkaido University：北大近未来戦略150に向けた研究支援制度研究費
    研究期間 : 2020年06月 -2021年03月
  • JSPS：Grants-in-Aid for Scientific Research
    研究期間 : 2018年04月 -2021年03月 
    代表者 : Podolskiy Evgeny
  • Triggering Mechanisms of Dry Snow Slab Avalanches (TRIME)
    Research Executive Agency / European Union：Marie Curie International Incoming Fellowship
    研究期間 : 2012年06月 -2014年06月

教育活動情報

主要な担当授業

  • 大学院共通授業科目（教育プログラム）：南極学
    開講年度 : 2021年
    課程区分 : 修士課程
    開講学部 : 大学院共通科目
    キーワード : 氷河、雪、氷、凍土、気象、アルプス、山岳、環境科学
  • 大学院共通授業科目（教育プログラム）：南極学
    開講年度 : 2021年
    課程区分 : 修士課程
    開講学部 : 大学院共通科目
    キーワード : 野外観測、降雪、積雪、気象、水文
  • 大学院共通授業科目（一般科目）：複合領域
    開講年度 : 2021年
    課程区分 : 修士課程
    開講学部 : 大学院共通科目
    キーワード : 北極域、地球環境、温暖化、気候変動、炭素循環、水循環、人間活動、永久凍土、北極域航路、国際政治、持続的開発 Arctic, Global environment, Global warming, Climate change, Ecosystems, Human activity, Permafrost, Northern Sea Route, Global politics, Sustainable development
  • 北極域総論
    開講年度 : 2021年
    課程区分 : 修士課程
    開講学部 : 環境科学院
    キーワード : 北極域、地球環境、温暖化、気候変動、炭素循環、水循環、人間活動、永久凍土、北極域航路、国際政治、持続的開発 Arctic, Global environment, Global warming, Climate change, Ecosystems, Human activity, Permafrost, Northern Sea Route, Global politics, Sustainable development
  • 地球雪氷学基礎論
    開講年度 : 2021年
    課程区分 : 修士課程
    開講学部 : 環境科学院
    キーワード : 雪氷・寒冷圏、雪、氷、極地 cryosphere, snow, ice, polar regions
  • 専門横断科目（一般科目）：複合領域
    開講年度 : 2021年
    課程区分 : 学士課程
    開講学部 : 専門横断科目
    キーワード : 北極における海洋および陸域の環境、気候変動、国際関係、北極海航路、海底ケーブル
  • 一般教育演習(ﾌﾚｯｼｭﾏﾝｾﾐﾅｰ)
    開講年度 : 2021年
    課程区分 : 学士課程
    開講学部 : 全学教育
    キーワード : 北極域、地球環境、温暖化、気候変動、炭素循環、水循環、人間活動、永久凍土、北極域航路、国際政治

大学運営

メディア報道

  • 報道 : 2023年05月04日
    発行元・放送局 : BBC World Service Radio
    番組・新聞雑誌 : Newsroom
    London　テレビ・ラジオ番組　Listen to a segment from 20 min 35 sec. Read (the original paper): https://doi.org/10.1029/2018GL079653
  • 報道 : 2023年01月
    発行元・放送局 : Hokkaido University
    番組・新聞雑誌 : Climate Change
    　インターネットメディア
  • 報道 : 2023年01月
    発行元・放送局 : Hokkaido University
    番組・新聞雑誌 : Climate Change
    　インターネットメディア
  • 報道 : 2022年09月
    執筆者 : 本人
    発行元・放送局 : 北海道大学
    番組・新聞雑誌 : プレスリリース（研究発表）
    　インターネットメディア
  • 報道 : 2022年09月
    発行元・放送局 : Hokkaido University
    番組・新聞雑誌 : Press release
    　インターネットメディア
  • 報道 : 2021年12月29日
    執筆者 : 本人以外
    発行元・放送局 : Springer Nature America, Inc.
    番組・新聞雑誌 : Nature Podcast
    London　テレビ・ラジオ番組　The Nature Podcast team select some of their favourite stories from the past 12 months.
  • 報道 : 2021年12月27日
    執筆者 : 本人
    発行元・放送局 : National Institute of Polar Research
    番組・新聞雑誌 : ArCS II News Letter vol.3
    Tokyo　会誌・広報誌
  • Interview with Dr. Podolskiy about narwhals
    報道 : 2021年09月21日
    執筆者 : 本人以外
    発行元・放送局 : GAZPROM
    番組・新聞雑誌 : https://narwhal.ru
    Saint-Peterburg, Russia　インターネットメディア
  • 報道 : 2021年07月29日
    執筆者 : 本人以外
    発行元・放送局 : Nature
    番組・新聞雑誌 : Podcast
    London　テレビ・ラジオ番組　12:34 Eavesdropping on a glacier’s base "We hear about one researcher’s unorthodox attempt to listen in to the seismic-whisper at the foot of a Greenland glacier – a method that might reveal more about conditions under these enormous blocks of ice." Research Article: Podolskiy, E.A., Murai, Y., Kanna, N. et al. Ocean-bottom and surface seismometers reveal continuous glacial tremor and slip. Nat Commun 12, 3929 (2021). https://doi.org/10.1038/s41467-021-24142-4
  • 報道 : 2021年07月19日
    執筆者 : 本人以外
    発行元・放送局 : 日刊工業新聞社
    番組・新聞雑誌 : 日本工業新聞
    東京　新聞・雑誌
  • 報道 : 2021年07月15日
    発行元・放送局 : Underwater World Publications, Ltd.
    番組・新聞雑誌 : International Ocean Systems
    Folcroft, PA 19032 USA　新聞・雑誌　p. 10-11
  • 報道 : 2021年07月08日
    執筆者 : 本人以外
    発行元・放送局 : 北海道大学
    番組・新聞雑誌 : プレスリリース
    日本　インターネットメディア　世界初！海底地震計を使い，氷河流動の検出に成功～微動を使った新しい氷河観測手法を提案～
  • 報道 : 2021年07月01日
    執筆者 : 本人以外
    発行元・放送局 : Hokkaido University,
    番組・新聞雑誌 : Press Release
    JP　インターネットメディア　Scientists show that an ocean-bottom seismometer deployed close to the calving front of a glacier in Greenland can detect continuous seismic radiation from a glacier sliding, reminiscent of a slow earthquake.
  • 報道 : 2021年05月20日
    執筆者 : 本人以外
    発行元・放送局 : American Geophysical Union,
    番組・新聞雑誌 : EOS
    　新聞・雑誌　Beurteaux, D. (2021), The chaos beneath a glacier’s calving front, AGU's Eos, 102.
  • 報道 : 2021年03月25日
    執筆者 : 本人以外
    発行元・放送局 : Hokkaido University,
    番組・新聞雑誌 : Press Release
    JP　インターネットメディア
  • 報道 : 2021年03月25日
    執筆者 : 本人以外
    発行元・放送局 : Hokkaido University,
    番組・新聞雑誌 : Press Release
    JP　インターネットメディア
  • 報道 : 2020年11月20日
    執筆者 : 本人以外
    発行元・放送局 : 国立大学附置研究所・センター会議
    日本　インターネットメディア　取材・文：近藤雄生 撮影：島田拓身 氷河の震動から、地球の動きが見えてくる新たな知を生み出す、「雪氷圏地震学」の取り組み
  • 報道 : 2020年06月18日
    執筆者 : 本人以外
    発行元・放送局 : Springer Nature America, Inc.
    番組・新聞雑誌 : Scientific American Podcast
    US　テレビ・ラジオ番組　Unicorns of the Sea Reveal Sound Activities, Scientific American, By Julia Rosen on June 18, 2020: Narwhals, recognizable by their large single tusk, make distinct sounds that are now being analyzed in depth by researchers.
  • 報道 : 2020年06月17日
    発行元・放送局 : Laboratory News
    番組・新聞雑誌 : the Podcast
    UK　テレビ・ラジオ番組　How do you record one of the most notoriously shy animals on the planet? Accidentally... Geophysicist Evgeny Podolskiy was busying himself recording the sounds of glaciers in Greenland when he suddenly realised that he had stumbled on the summering grounds of a population of narwhals. So began an odyssey in sound featuring social calls, echolocation and hunting clicks - and, amazingly, a local Inuit hunting expedition.
  • 報道 : 2020年06月11日
    発行元・放送局 : Gimlet Media
    番組・新聞雑誌 : Science VS
    NY, US　テレビ・ラジオ番組　The coronavirus seems to cause symptoms all over our body, from nose to toes. So how can one virus do so many strange things? To find out, we talk to gastroenterologist Dr. Anthony DeBenedet, virologist and immunologist Professor Ann Sheehy, otorhinolaryngologist Professor Thomas Hummel, and dermatologist Professor Amy Paller. Here’s a link to our transcript: https://bit.ly/2zqehBZ This episode was produced by Rose Rimler and Meryl Horn with help from Wendy Zukerman, Sinduja Srinivasan, Michelle Dang and Mathilde Urfalino. We’re edited by Blythe Terrell with help from Caitlin Kenney. Fact checking by Lexi Krupp. Mix and sound design by Peter Leonard. Music written by Peter Leonard, Marcus Bagala, Emma Munger, and Bobby Lord. A huge thanks to all the researchers we got in touch with for this episode, including Dr. Ahmad Sedaghat, Professor Richard Doty, Dr. Elnara Negri, Dr. Evgeniy Podolskiy, Prof. Yvonne Maldonado, Prof. Steven Mentzer, Dr. John Paget, Dr. Connor Bamford, and Dr Gaetano Santulli. And special thanks to Kendra Pierre-Louis, the Zukerman family, and Joseph Lavelle Wilson.
  • 報道 : 2020年06月04日
    執筆者 : 本人以外
    発行元・放送局 : The Guardian,
    番組・新聞雑誌 : Podcast
    UK　テレビ・ラジオ番組　Narwhals may be shy and elusive, but they are certainly not quiet. Nicola Davis speaks to geophysicist Dr Evgeny Podolskiy about capturing the vocalisations of narwhals in an arctic fjord, and what this sonic world could tell us about the lives of these mysterious creatures.
  • 報道 : 2020年05月29日
    執筆者 : 本人以外
    発行元・放送局 : Hokkaido University,
    番組・新聞雑誌 : Press Release
    JP　インターネットメディア　Joint press release by American Geophysical Union (AGU) and Hokkaido University
  • 報道 : 2020年05月20日
    執筆者 : 本人以外
    発行元・放送局 : American Geophysical Union,
    番組・新聞雑誌 : Press Release
    Washington DC　インターネットメディア　By Lauren Lipuma
  • 報道 : 2020年04月17日
    執筆者 : 本人以外
    発行元・放送局 : American Geophysical Union,
    番組・新聞雑誌 : EOS
    US　新聞・雑誌　Evans Ogden, L. (2020), Tuning in to a glacial symphony, AGU's Eos, 101.
  • 報道 : 2020年04月16日
    執筆者 : 本人以外
    発行元・放送局 : GlacierHub
    US　インターネットメディア　by Audrey Ramming
  • 報道 : 2019年09月19日
    執筆者 : 本人以外
    発行元・放送局 : Apple Podcasts,
    番組・新聞雑誌 : Of volcanoes and men.
    Sweden　テレビ・ラジオ番組　By Oles Savchuk In the 10th episode of my interview series I am delighted to speak with my friend from the good old Japanese days, Evgeny Podolskiy, assistant professor at the Arctic Research Center, Hokkaido University in Sapporo, Japan. He graduated from the Department of Cryolithology and Glaciology, Faculty of Geography, Lomonosov Moscow State University, though later on his research career took an interesting turn — for the last several years Evgeny has been working in the field that did not exist when he was a student — cryoseismology (study of ice-quakes). We speak about that and how his interest in seismic waves has evolved into smth unexpected
  • 報道 : 2019年04月19日
    執筆者 : 本人以外
    発行元・放送局 : Hokkaido University
    番組・新聞雑誌 : Press Release
    日本　インターネットメディア
  • 報道 : 2019年01月
    執筆者 : 本人以外
    発行元・放送局 : Springer Nature America, Inc.
    番組・新聞雑誌 : Scientific American
    US　新聞・雑誌　Qui, J. (2019), Icy nocturnes, Scientific American, 320(1), 12-13
  • 報道 : 2018年10月
    発行元・放送局 : American Geophysical Union,
    番組・新聞雑誌 : GeoSpace
    US　インターネットメディア　Learn, J. P. (2018), Tracking exploding ice cracks on Himalayan glaciers, AGU's GeoSpace.
  • 報道 : 2018年06月20日
    執筆者 : 本人以外
    発行元・放送局 : GlacierHub
    　インターネットメディア　By Sabrina Ho Yen Yin
  • 報道 : 2017年04月25日
    執筆者 : 本人以外
    発行元・放送局 : Hokkaido University,
    番組・新聞雑誌 : Spotlight on Research
    JP　インターネットメディア　By Katrina-Kay Alaimo
  • 報道 : 2017年02月
    執筆者 : 本人以外
    発行元・放送局 : 北海道大学
    番組・新聞雑誌 : 理の社会実装を目指して
    日本　会誌・広報誌　海外の研究機関や本学低温科学研究所等を経て2015年12月に北極域研究センターに着任した ポドリスキ助教。氷河が急に亀裂を生じる際に発生する「氷河地震」について研究している。地震学の 観測手法を生かして氷河の内部を探る「Cryoseismology(氷河地震学)」という新しい分野を 開拓中。現在は、低温科学研究所や海外の研究チームと協力し、グリーンランド北西部にあるボード イン氷河の末端に計測器を設置して観測を行っている。地球温暖化等に影響を及ぼすといわれて いる氷河変動のメカニズム解明を目指す。
  • 報道 : 2016年06月
    執筆者 : 本人以外
    発行元・放送局 : 北海道大学
    番組・新聞雑誌 : 低温研ニュース
    日本　新聞・雑誌　2016年 6月 No.41 [pdf:29MB]
  • 報道 : 2016年03月28日
    執筆者 : 本人以外
    発行元・放送局 : Hokkaido University
    番組・新聞雑誌 : Press Release
    JP　インターネットメディア
  • 氷河地震 潮汐と運動
    報道 : 2016年03月27日
    執筆者 : 本人以外
    番組・新聞雑誌 : 読売新聞
    　新聞・雑誌　27/3/2016, p. 32
  • 報道 : 2016年03月17日
    執筆者 : 本人以外
    発行元・放送局 : 国立極地研究所
    番組・新聞雑誌 : プレスリリース
    日本　インターネットメディア
  • 報道 : 2014年05月08日
    執筆者 : 本人以外
    発行元・放送局 : Springer
    番組・新聞雑誌 : Nature
    UK　テレビ・ラジオ番組　>23m:25s
  • 報道 : 2014年05月07日
    執筆者 : 本人以外
    発行元・放送局 : Springer
    番組・新聞雑誌 : Nature
    　新聞・雑誌　Qiu, J. Avalanche hotspot revealed. Nature 509, 142–143 (2014). https://doi.org/10.1038/509142a
  • 報道 : 2014年04月
    執筆者 : 本人以外
    発行元・放送局 : Irstea
    番組・新聞雑誌 : Les échos d'Irstea
    Grenoble, France　会誌・広報誌　Bomboy, A. "Evgeny Podolskiy enrichit son parcours international à Irstea", N°10, avril-mai 2014, p.7
  • 報道 : 2012年07月30日
    執筆者 : 本人以外
    発行元・放送局 : AAAS
    番組・新聞雑誌 : Science
    Washington DC　新聞・雑誌

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