Synchronization of bowhead whales
Evgeny A. Podolskiy, Jonas Teilmann, Mads Peter Heide-Jørgensen
PHYSICAL REVIEW RESEARCH, XP10736W, 003000, American Physical Society, 2024年08月15日, ［査読有り］, ［筆頭著者, 責任著者］, ［国際誌］
英語, 研究論文（学術雑誌）, Press-release: https://www.global.hokudai.ac.jp/blog/long-distance-relationship-revealed-in-the-seemingly-random-behavior-of-bowhead-whales/

Ice speed of a Greenlandic tidewater glacier modulated by tide, melt, and rain
Shin Sugiyama, Shun Tsutaki, Daiki Sakakibara, Izumi Asaji, Ken Kondo, Yefan Wang, Evgeny Podolskiy, Guillaume Jouvet, Martin Funk
Copernicus GmbH, 2024年05月29日
Abstract. Ice discharge from the Greenland ice sheet is controlled by tidewater glacier flow speed, which shows significant variations in different timescales. Short-term speed variations are key to understanding the physical processes controlling glacial motion, but studies are sparse for Greenlandic tidewater glaciers, particularly near the calving front. Here, we present high-frequency ice speed measurements performed at 0.5–4 km from the front of Bowdoin Glacier, a tidewater glacier in northwestern Greenland. Three GPS (global positioning system) receivers were operated for several weeks in July of 2013–2017 and 2019. Horizontal ice speed varied over timescales of hours to days, including short-term speed-up events as well as diurnal and semidiurnal variations. Frequency analysis revealed that semidiurnal signals decay upglacier, whereas diurnal signals are consistently observed over the area of study. Speed-up events were associated with heavy rain, and longer-term variations were correlated with air temperature. Uplift of the glacier surface was observed during fast-flowing periods, suggesting basal separation due to elevated water pressure. These observations confirm the strong and immediate impact of melt/rainwater on subglacial water pressure and sliding speed. Tidally modulated ice speed peaks coincided with or slightly before low tide, which demonstrates the key role viscoelastic ice dynamics play in response to changing hydrostatic pressure acting on the glacier front. Our study results reveal details of short-term flow variations near the front of a Greenlandic tidewater glacier and provide insights into calving glacier dynamics. During melt season, ice speed is controlled by atmospheric conditions through meltwater production and rain events as commonly observed in alpine glaciers, but additional complexity arises from tidal influence near the calving front.

Insights into glacial processes from micromorphology of silt-sized sediment
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, Copernicus GmbH, 2024年04月10日, ［査読有り］, ［最終著者］
英語, 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.

Acoustic monitoring reveals a diel rhythm of an arctic seabird colony (little auk, Alle alle)
Evgeny A. Podolskiy, Monica Ogawa, Jean-Baptiste Thiebot, Kasper L. Johansen, Anders Mosbech
Communications Biology, 7, 307, 2024年03月15日, ［査読有り］, ［筆頭著者, 責任著者］
英語, 研究論文（学術雑誌）

Acoustic sensing of glacial discharge in Greenland
Evgeny Podolskiy, Takuro Imazu, Shin Sugiyama
Geophysical Research Letters, 50, e2023GL103235, 2023年04月, ［査読有り］, ［筆頭著者, 責任著者］
英語, 研究論文（学術雑誌）

WHAT THE SOUNDS OF ICEBERG CALVING CAN TELL US
Podolskiy E.A
The Circle, 4, 14, 17, WWF Arctic Programme, 2023年01月, ［招待有り］, ［筆頭著者］
英語

Strange attractor of a narwhal (Monodon monoceros)
Evgeny A. Podolskiy, Mads Peter Heide-Jørgensen
PLOS Computational Biology, 18, 9, e1010432, e1010432, Public Library of Science (PLoS), 2022年09月22日, ［査読有り］, ［筆頭著者, 責任著者］
英語, 研究論文（学術雑誌）, 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.

Catastrophic avalanches on Sakhalin and the Kuril Islands (1910–2020)
E.N. Kazakova, E.A. Podolskiy, N.A. Kazakov
Ice and Snow, 62, 1, 99, 112, The Russian Academy of Sciences, 2022年02月, ［査読有り］
ロシア語, 研究論文（学術雑誌）, 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.

Glacial earthquake-generating iceberg calving in a narwhal summering ground: The loudest underwater sound in the Arctic?
Evgeny A. Podolskiy, Yoshio Murai, Naoya Kanna, Shin Sugiyama
The Journal of the Acoustical Society of America, 151, 1, 6, 16, Acoustical Society of America (ASA), 2022年01月03日, ［査読有り］, ［筆頭著者, 責任著者］, ［国際誌］
英語, 研究論文（学術雑誌）

Arctic unicorns and the secret sounds of a glacial fjord
Podolskiy, E. A
EOS, 102, American Geophysical Union, 2021年12月09日, ［筆頭著者, 責任著者］
英語, 研究論文（その他学術会議資料等）, 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.

Undertaking adventure to make sense of subglacial plumes
Podolskiy, Evgeny
EOS, 102, American Geophysical Union, 2021年08月19日, ［招待有り］, ［筆頭著者］, ［国際誌］
英語, 研究論文（その他学術会議資料等）

Ocean-bottom and surface seismometers reveal continuous glacial tremor and slip
Evgeny A. Podolskiy, Yoshio Murai, Naoya Kanna, Shin Sugiyama
Nature Communications, 12, 1, 3929, 3929, Springer Science and Business Media LLC, 2021年06月24日, ［査読有り］, ［筆頭著者］, ［国際誌］
英語, 研究論文（学術雑誌）, Shearing 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.

Ice Cliff Dynamics of Debris-Covered Trakarding Glacier in the Rolwaling Region, Nepal Himalaya
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, Frontiers Media SA, 2021年06月04日, ［査読有り］, ［国際共著］, ［国際誌］
英語, 研究論文（学術雑誌）, 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.

Ocean-Bottom Seismology of Glacial Earthquakes: The Concept, Lessons Learned, and Mind the Sediments
Evgeny A. Podolskiy, Yoshio Murai, Naoya Kanna, Shin Sugiyama
Seismological Research Letters, 92, 5, 1, 16, Seismological Society of America (SSA), 2021年05月05日, ［査読有り］, ［筆頭著者, 責任著者］, ［国際誌］
英語, 研究論文（学術雑誌）,
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.

Co-seismic eruption and intermittent turbulence of a subglacial discharge plume revealed by continuous subsurface observations in Greenland
Evgeny A. Podolskiy, Naoya Kanna, Shin Sugiyama
Communications Earth & Environment, 2, 66, 1, 16, Springer Science and Business Media LLC, 2021年03月, ［査読有り］, ［筆頭著者］
英語, 研究論文（学術雑誌）, In 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.

Rapidly changing glaciers, ocean and coastal environments, and their impact on human society in the Qaanaaq region, northwestern Greenland
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, Elsevier BV, 2021年03月, ［査読有り］
英語, 研究論文（学術雑誌）

Thinning leads to calving-style changes at Bowdoin Glacier, Greenland
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, Copernicus GmbH, 2021年02月02日, ［査読有り］
英語, 研究論文（学術雑誌）, 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.

Soundscape of a narwhal summering ground in a glacier fjord (Inglefield Bredning, Greenland)
Podolskiy E.A., Sugiyama S.
Journal of Geophysical Research: Oceans, 2020年04月, ［査読有り］, ［筆頭著者］, ［国際誌］
英語, 研究論文（学術雑誌）

Toward the acoustic detection of two-phase flow patterns and Helmholtz resonators in englacial drainage systems
Podolskiy E.A.
Geophysical Research Letters, 47, e2020GL086951, n/a, n/a, Wiley, 2020年03月, ［査読有り］, ［筆頭著者, 責任著者］, ［国際誌］
英語, 研究論文（学術雑誌）, 12432619

ネパール・ヒマラヤ トラカルディン氷河における氷壁ダイナミクスの解明
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
日本語

Tide-modulated ice motion and seismicity of a floating glacier tongue in East Antarctica
Minowa M, Podolskiy E, Sugiyama S
Annals of Glaciology, 60, 79, n/a, n/a, CAMBRIDGE UNIV PRESS, 2019年05月, ［査読有り］
英語, 研究論文（学術雑誌）, 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.

Viscoelastic modeling of nocturnal thermal fracturing in a Himalayan debris-covered glacier
Podolskiy Evgeny
Journal of Geophysical Research, 124, 6, n/a, n/a, American Geophysical Union (AGU), 2019年05月, ［査読有り］
英語, 研究論文（学術雑誌）

Calving flux estimation from tsunami waves
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, ELSEVIER, 2019年04月, ［査読有り］
英語, 研究論文（学術雑誌）, 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/).

ネパール・ヒマラヤ トラカルディン氷河における氷壁の分布特性と氷河衰退への影響
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
日本語

Failure mechanics of snow layers through image analysis
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］
英語, 研究論文（学術雑誌）

Nocturnal thermal fracturing of a Himalayan debris‐covered glacier revealed by ambient seismic noise
Podolskiy, E. A, Fujita, K, Sunako, S, Tsushima, A, Kayastha, R
Geophysical Research Letters, 45, 18, 9699, 9709, American Geophysical Union ({AGU}), 2018年08月, ［査読有り］, ［国際誌］
英語, 研究論文（学術雑誌）

Glacier calving observed with time-lapse imagery and tsunami waves at Glaciar Perito Moreno, Patagonia
Masahiro Minowa, Evgeny A. Podolskiy, Shin Sugiyama, Daiki Sakakibara, Pedro Skvarca
Journal of Glaciology, 64, 245, 362, 376, Cambridge University Press, 2018年06月01日, ［査読有り］
英語, 研究論文（学術雑誌）, 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.

Recent ice mass loss in northwestern Greenland: Results of the GRENE Greenland project and overview of the ArCS project
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
英語, 研究論文（大学，研究機関等紀要）, 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).

Seismic and infrasound monitoring of Bowdoin Glacier, Greenland
Podolskiy Evgeny
Low Temperature Science, 75, 15, 36, 低温科学第75巻編集委員会, 2017年03月, ［招待有り］
英語, 研究論文（大学，研究機関等紀要）, 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.

Cryoseismology
Evgeny A. Podolskiy, Fabian Walter
REVIEWS OF GEOPHYSICS, 54, 4, 708, 758, AMER GEOPHYSICAL UNION, 2016年12月, ［査読有り］, ［招待有り］
英語, 研究論文（学術雑誌）, 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.

Tide-modulated ice flow variations drive seismicity near the calving front of Bowdoin Glacier, Greenland
Evgeny A. Podolskiy, Shin Sugiyama, Martin Funk, Fabian Walter, Riccardo Genco, Shun Tsutaki, Masahiro Minowa, Maurizio Ripepe
GEOPHYSICAL RESEARCH LETTERS, 43, 5, 2036, 2044, AMER GEOPHYSICAL UNION, 2016年03月, ［査読有り］
英語, 研究論文（学術雑誌）, 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.

Evaluating ablation and environmental impact of giant anthropogenic snow patches (Yuzhno-Sakhalinsk, Russia)
Evgeny A. Podolskiy, Valentina A. Lobkina, Yuri V. Gensiorovsky, Emmanuel Thibert
COLD REGIONS SCIENCE AND TECHNOLOGY, 114, 44, 60, ELSEVIER SCIENCE BV, 2015年06月, ［査読有り］, ［筆頭著者, 責任著者］
英語, 研究論文（学術雑誌）, 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.

Evaluating snow weak-layer failure parameters through inverse finite element modelling of shaking-platform experiments
E. A. Podolskiy, G. Chambon, M. Naaim, J. Gaume
NATURAL HAZARDS AND EARTH SYSTEM SCIENCES, 15, 1, 119, 134, COPERNICUS GESELLSCHAFT MBH, 2015年, ［査読有り］, ［筆頭著者, 責任著者］
英語, 研究論文（学術雑誌）, 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.

Physical and societal statistics for a century of snow-avalanche hazards on Sakhalin and the Kuril Islands (1910-2010)
Evgeny A. Podolskiy, Kaoru Izumi, Vladimir E. Suchkov, Nicolas Eckert
JOURNAL OF GLACIOLOGY, 60, 221, 409, 430, INT GLACIOL SOC, 2014年, ［査読有り］, ［筆頭著者, 責任著者］, ［国際共著］, ［国際誌］
英語, 研究論文（学術雑誌）, 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.

Healing of snow surface-to-surface contacts by isothermal sintering
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, COPERNICUS GESELLSCHAFT MBH, 2014年, ［査読有り］, ［筆頭著者, 責任著者］, ［国際共著］, ［国際誌］
英語, 研究論文（学術雑誌）, 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.

Testing a new shear loading apparatus for in-situ studies of weak snow layers
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, ［筆頭著者, 責任著者］, ［国際共著］, ［国際誌］
研究論文（国際会議プロシーディングス）

Wave of avalanche disasters in response to colonization: a century of statistics from the world’s deadliest avalanche-prone islands
Podolskiy, E. A, K. Izumi, V. E. Suchkov, N. Eckert
Proceedings of the International Snow Science Workshop, A7045EP, 1135, 1137, 2013年10月, ［筆頭著者, 責任著者］, ［国際共著］, ［国際誌］
英語, 研究論文（国際会議プロシーディングス）

Correspondence
Podolskiy, E.A., Chambon, G., Naaim, M., Gaume, J.
Journal of Glaciology, 59, 218, 2013年
研究論文（学術雑誌）

A review of finite-element modelling in snow mechanics
E. A. Podolskiy, G. Chambon, M. Naaim, J. Gaume
JOURNAL OF GLACIOLOGY, 59, 218, 1189, 1201, INT GLACIOL SOC, 2013年, ［査読有り］, ［筆頭著者, 責任著者］, ［国際共著］, ［国際誌］
英語, 研究論文（学術雑誌）

Mechanics of weak layer snow under cyclic loading studied by FEM
Podolskiy, E. A, Chambon, G, Naaim, M, Gaume, J
Proceedings of the International Snow Science Workshop, 617, 621, 2012年09月, ［筆頭著者, 責任著者］, ［国際共著］, ［国際誌］
英語, 研究論文（国際会議プロシーディングス）

Study of unusual atmospheric icing at Mount Zao, Japan, using the Weather Research and Forecasting model
Evgeny Andreevich Podolskiy, Bjorn Egil Kringlebotn Nygaard, Kouichi Nishimura, Lasse Makkonen, Edward Peter Lozowski
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 117, 1, AMER GEOPHYSICAL UNION, 2012年06月, ［査読有り］, ［筆頭著者, 責任著者］, ［国際共著］, ［国際誌］
英語, 研究論文（学術雑誌）, 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.

Perspective: Learning from Others' Mistakes
Podolskiy E
Science., 2012年06月, ［筆頭著者, 責任著者］, ［国際誌］
英語, 研究論文（学術雑誌）, Podolskiy, E, 2012, 'Perspective: Learning from Others' Mistakes', <i>Science</i>.

WRF atmospheric icing validation for Mount Zao, Japan, during 19-29 April 2009
Podolskiy, E. A, B. E. K. Nygaard
Proceedings of the 14th International Workshop on Atmospheric Icing of Structures, 55, 2011年05月, ［筆頭著者, 責任著者］, ［国際誌］
英語, 研究論文（国際会議プロシーディングス）

Earthquake-induced snow avalanches: I. Historical case studies
Evgeny A. Podolskiy, Kouichi Nishimura, Osamu Abe, Pavel A. Chernous
JOURNAL OF GLACIOLOGY, 56, 197, 431, 446, INT GLACIOL SOC, 2010年, ［査読有り］, ［筆頭著者, 責任著者］, ［国際共著］, ［国際誌］
英語, 研究論文（学術雑誌）, 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.

Earthquake-induced snow avalanches: II. Experimental study
Evgeny A. Podolskiy, Kouichi Nishimura, Osamu Abe, Pavel A. Chernous
JOURNAL OF GLACIOLOGY, 56, 197, 447, 458, INT GLACIOL SOC, 2010年, ［査読有り］, ［筆頭著者, 責任著者］, ［国際共著］, ［国際誌］
英語, 研究論文（学術雑誌）, 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.

Experimental study on earthquake-induced avalanches
Podolskiy, E.A., Abe, O., Nishimura, K., Chernous, P.A., Shinbori, K.
Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research, 2009, 212, 212, 2009年
研究論文（学術雑誌）

Avalanches in Turkey
Podolskiy, E.A., Nishimura, K., Izumi, K., Murat Yava?, {\"O}.
Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research, 2009, 102, 102, 2009年
研究論文（学術雑誌）

Shear strength tests and their interpretation methods for assessment of snow stability on a mountain slope
Barashev, N, Podolskiy, E, Chernous, P, Abe, O, K. Nishimura
Data of Glaciological Studies, 107, 115, 119, Russian Academy of Sciences, 2009年01月, ［査読有り］, ［国際共著］, ［国内誌］
ロシア語, 研究論文（学術雑誌）

妙高山域の幕ノ沢で2008年2月に発生した大規模な乾雪表層雪崩
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, Japanese Society of Snow and Ice, 2009年, ［査読有り］, ［国内誌］
日本語, 研究論文（学術雑誌）

Effects of Recent Environmental Changes on Global Seismicity and Volcanism
Evgeny A. Podolskiy
EARTH INTERACTIONS, 13, 4, 1, 14, AMER GEOPHYSICAL UNION, 2009年, ［査読有り］, ［国際誌］
英語, 研究論文（学術雑誌）, 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.

Jean Louis Rodolphe Agassiz
Podolskiy E
Data of Glaciological Studies, 103, 213, 221, 2007年, ［査読有り］, ［筆頭著者, 責任著者］, ［国内誌］
ロシア語, 研究論文（学術雑誌）, 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.

Approbation of Snowpack model in Russia
Vikulina, М, Mokrov, E.G, Podolskiy, E. A, Seliverstov, Yu.G, M. Lehning
Data of Glaciological Studies, 99, 105, 107, Russian Academy of Sciences, 2005年01月, ［査読有り］, ［国際共著］, ［国内誌］
ロシア語, 研究論文（学術雑誌）

高周波水位測定によるカービングの統計解析と周波数解析
箕輪昌紘, 杉山慎, 榊原大貴, ポドリスキ エヴゲニ, 大橋良彦, 澤柿教伸, 内藤望, スクヴァルカ ペドロ, 北海道の雪氷, 34, 47, 50, 2015年09月
日本語

中央アジア・パミール高原フェドチェンコ氷河のアイスコア中の花粉分析
宮入 匡矢, 竹内 望, 藤田 耕史, 的場 澄人, 岡本 祥子, Dylan Bodinton, Evgeny Podolskiy, Vladimir Aizen, 雪氷研究大会, 2012, 0, 217, 217, 2012年
公益社団法人 日本雪氷学会／日本雪工学会, 日本語

パミール高原・フェドチェンコ氷河アイスコア中の同位体および化学成分
雨宮 俊, 竹内 望, 藤田 耕史, 的場 澄人, 岡本 祥子, Podolskiy Evgeny, Bodington Dylan, Vladimir Aizen, 雪氷研究大会講演要旨集, 2011, 0, 198, 198, 2011年
公益社団法人 日本雪氷学会／日本雪工学会, 英語

ロシア樺太の雪崩による脱線事故 (平成21年12月31日)
スチコフ ウラディミール, ポドリスキ エヴゲニ, 雪氷 : 日本雪氷協會雜誌, 72, 3, v, vi, 2010年05月15日
英語

2009年8月, 世界-長い山岳氷河, パミール高原フェドチェンコ氷河への遠征
ポドリスキ エヴゲニ, AIZEN V. B., 雪氷 : 日本雪氷協會雜誌, 72, 1, i, ii, 2010年01月15日
英語

パミール・フェドチェンコ氷河，2009年アイスコア掘削調査
竹内 望, 藤田 耕史, 的場 澄人, 岡本 祥子, Podolskiy Evgeny, Bodington Dylan, Aizen Vladimir, 雪氷研究大会講演要旨集, 2010, 0, 200, 200, 2010年
公益社団法人 日本雪氷学会／日本雪工学会, 英語

Long-term hydroacoustic monitoring of ice dynamics and animals in glacial fjords, NW Greenland　　　　　　　　　　　　　　　
Evgeny A. Podolskiy, Mayuko Otsuki, Kohei Hasegawa, Shin Sugiyama
Japan Geoscience Union Meeting, 2024年05月31日, 日本語, 口頭発表（一般）

Diel cycle and long-distance synchronization in bowhead whales　　　　　　　　　　　　　　　
Podolskiy, E, Teilmann, J, Heide-Jorgensen, M. P
The 8th International Bio-Logging Science Symposium, 2024年03月05日, 英語

Sounds of ice & animals in Greenland: listen to learn　　　　　　　　　　　　　　　
Evgeny Podolskiy
Greenland Science Conference, 2023年11月08日, 英語

Hydroacoustics in Greenland　　　　　　　　　　　　　　　
Evgeny Podolskiy
Glacier acoustics and glacier-ocean interactions, 2023年09月19日, International Partnership for Acoustical mOnitoring of Glaciers (IPA OMG), 英語, 口頭発表（招待・特別）
シンガポール共和国, ［招待講演］, ［国際会議］

Environmental acoustics　　　　　　　　　　　　　　　
Evgeny Podolskiy
Ice-sheet research from different angles: mathematical, physical, environmental and societal aspects, 2023年07月05日, 英語, 口頭発表（一般）

Glacial tremor and slip　　　　　　　　　　　　　　　
Evgeny Podolskiy
「地震活動の物理」２０２２年度 研究集会, 2023年03月22日, 英語, 口頭発表（招待・特別）
University of Tokyo, 日本国, ［招待講演］

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09日, 英語, 口頭発表（一般）

Arctic sounds: Listen to learn
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20日, 英語, 口頭発表（基調）
日本国, ［招待講演］, ［国際会議］

Why not eavesdrop on glaciers and whales with seafloor seismology?
Evgeny Podolskiy, Yoshio Murai, Naoya Kanna, Shin Sugiyama
AGU Fall Meeting 2022, 2022年12月12日, AGU, 英語, 口頭発表（招待・特別）
McCormick Place Convention Center, アメリカ合衆国, ［招待講演］

Detecting patterns in animal behavior　　　　　　　　　　　　　　　
Evgeny Podolskiy
About active matter symposium, 2022年11月22日, 日本語, 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25日, 日本語, 口頭発表（一般）

水中の氷河地震学　　　　　　　　　　　　　　　
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03日, 日本語, 口頭発表（一般）

Summer with narwhals, the unicorns of the sea　　　　　　　　　　　　　　　
Evgeny Podolskiy
Arctic Research Center Monthly Seminar, 2022年09月20日, 英語, 口頭発表（一般）

Listening to glaciers and whales with seafloor seismology　　　　　　　　　　　　　　　
Evgeny Podolskiy, Yoshio Murai, Naoya Kanna, Shin Sugiyama
British Seismology Meeting (BSM22: New advances in multi-disciplinary seismology), 2022年09月13日, 英語, 口頭発表（一般）

Eavesdropping on glaciers and whales with seafloor seismology　　　　　　　　　　　　　　　
Evgeny Podolskiy, Yoshio Murai, Naoya Kanna, Shin Sugiyama
The Third European Conference on Earthquake Engineering and Seismology (3ECEES), 2022年09月09日, 英語, 口頭発表（一般）

Chaos theory reveals the diving behaviors of a whale　　　　　　　　　　　　　　　
Evgeny Podolskiy, M.P. Heide-Jørgensen
Fundamentals of Active Matter across Scales for Novel Materials, 2022年05月26日, 英語, 口頭発表（一般）
日本国, ［国内会議］, ［国際共著］

Rigopiano snow-avalanche controversy（Italy,18 Jan 2017）　　　　　　　　　　　　　　　
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13日, 日本語, 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13日, 英語, 口頭発表（一般）

Sounds of ice, whales, and humans in Greenland　　　　　　　　　　　　　　　
Podolskiy, E
ArCS II the 2nd plenary meeting, 2021年06月30日, 英語, 口頭発表（招待・特別）
［招待講演］

Underwater sounds of unicorns and glaciers in Greenland
Podolskiy. E. A
IARC-ARC Joint Seminar, 2021年06月22日, IARC (UAF) - ARC (HU), 英語, 口頭発表（一般）
online, 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., ［国際会議］

Glacier and whale monitoring with an Ocean-Bottom Seismometer at the calving front　　　　　　　　　　　　　　　
Podolskiy, E, Murai, Y, Kanna, N, Sugiyama, S
Japan Geoscience Union Meeting 2021, 2021年06月04日, 英語, 口頭発表（一般）

Ocean‐Bottom Seismology of Glacial Earthquakes　　　　　　　　　　　　　　　
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26日, 日本語, 口頭発表（一般）

Listening to the language of Arctic unicorns and ice-quakes　　　　　　　　　　　　　　　
Global ecosystem and environmental changes in the Arctic, 2020年12月11日, 英語, 口頭発表（一般）
［招待講演］

Multi-purpose ocean acoustic observations in a glacier fjord　　　　　　　　　　　　　　　
Evgeny Podolskiy
ArCS-II Meeting, 2020年08月05日, 日本語, 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12日, 英語, 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08日, 英語, 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17日, 日本語, 口頭発表（一般）

Listening to the language of unicorns and ice-quakes in Greenland　　　　　　　　　　　　　　　
Podolskiy Evgeny
Seminar for Young Leaders from Alaska (Kakehashi project, MoFA), 2019年12月05日, 英語, 公開講演，セミナー，チュートリアル，講習，講義等
［国内会議］

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　　　　　　　　　　　　　　　
Podolskiy Evgeny
第３回地震火山センター談話会, 2019年10月28日, 日本語, 口頭発表（一般）
［国内会議］

Continuous and discrete ice-quakes due to fracture, slow slip and fluids　　　　　　　　　　　　　　　
Podolskiy Evgeny
The International Statistical Seismology (StatSei) workshop, 2019年08月21日, 英語, 口頭発表（招待・特別）
［招待講演］, ［国際会議］

Volcanic‐like long-period seismic events at a tidewater glacier in Greenland　　　　　　　　　　　　　　　
Podolskiy Evgeny
EGU General Assembly 2019, 2019年04月08日, 英語, 口頭発表（一般）
［国際会議］

Thermal fracturing on a Himalayan debris-covered glacier　　　　　　　　　　　　　　　
Podolskiy Evgeny
EGU General Assembly 2019, 2019年04月08日, 英語, 口頭発表（招待・特別）
［招待講演］, ［国際会議］

Hydro-acoustic monitoring of mammals and ice dynamics in Greenland　　　　　　　　　　　　　　　
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06日, 日本語, 口頭発表（一般）
［国内会議］

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
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07日, 日本語, 口頭発表（一般）
［国内会議］

Nocturnal Thermal Fracturing of a Himalayan Debris-covered Glacier: Evidence from Ambient Seismic Noise and Numerical Modeling　　　　　　　　　　　　　　　
Podolskiy Evgeny
AGU Fall Meeting 2018, 2018年12月13日, 英語, 口頭発表（一般）
［国際会議］

Hydraulic Link between Glacier-dammed Lake and Meltwater Plume Revealed by Seismic Tremor, Time-lapse Imagery, Radar and Mooring　　　　　　　　　　　　　　　
Podolskiy Evgeny
AGU Fall Meeting 2018, 2018年12月10日, 英語, 口頭発表（一般）
［国際会議］

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　　　　　　　　　　　　　　　
Podolskiy Evgeny
ArCS氷河氷床・海洋相互作用課題 第2回会合, 2018年11月30日, 日本語, 口頭発表（一般）
［国内会議］

Nocturnal thermal fracturing of a Himalayan debris-covered glacier: Evidence from ambient seismic noise and numerical modelling　　　　　　　　　　　　　　　
Podolskiy Evgeny
Glaciological Seminar, VAW/ETH-Zurich, 2018年10月03日, 英語
［国内会議］

Seismic symphony of a tidewater glacier: tide-modulated cracks, subglacial GLOFs, calving and sliding tremors　　　　　　　　　　　　　　　
Podolskiy Evgeny
Glaciological Seminar, VAW/ETH-Zurich, 2018年09月20日, 英語
［国内会議］

Long-period seismic events and tremor at a tidewater glacier in Greenland　　　　　　　　　　　　　　　
Podolskiy Evgeny
European Seismological Commission General Assembly 2018, 2018年09月03日, 英語, 口頭発表（一般）
［国際会議］

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　　　　　　　　　　　　　　　
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30日, 日本語
［国内会議］

Ambient seismic noise at a Himalayan debris-covered glacier　　　　　　　　　　　　　　　
Podolskiy Evgeny
Japan Geoscience Union Meeting, 2018年05月24日, 英語
［国際会議］

Seismic noise as a treasure mountain for a glaciologist　　　　　　　　　　　　　　　
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29日, 日本語
［国内会議］

Seismic noise as a proxy for glacier dynamics　　　　　　　　　　　　　　　
Podolskiy Evgeny
5th International Symposium on Arctic Research (ISAR-5), 2018年01月18日, 英語, 口頭発表（一般）
［国際会議］

雑微動: 地震学者の頭痛の種氷河学者にとっては宝の山　　　　　　　　　　　　　　　
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20日, 日本語
［国内会議］

Acoustic monitoring of Arctic top predators under abrupt climate change　　　　　　　　　　　　　　　
2024年04月 - 2028年03月
科学研究費 日本学術振興会（JSPS）, 基盤研究(B)（一般）, 研究代表者

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　　　　　　　　　　　　　　　
創成特定研究事業
2022年04月 - 2024年03月
角五, 住野, 西上, Evgeny Podolskiy, 景山
北海道大学, 北海道大学, 研究分担者

Underwater seismology and acoustics for environmental studies in cold regions　　　　　　　　　　　　　　　
SOUSEI Support Program for Young Researchers
2021年08月 - 2022年03月
創成若手研究加速支援事業 北海道大学, 創成若手研究加速支援事業, 研究代表者

Hydro-acoustic monitoring in Greenland　　　　　　　　　　　　　　　
北大近未来戦略150に向けた研究支援制度研究費
2020年06月 - 2021年03月
Hokkaido University, 研究代表者

氷河学における新た なプロキシとしての 地震波解析
Grants-in-Aid for Scientific Research
2018年04月 - 2021年03月
Podolskiy Evgeny
JSPS, 研究代表者, 競争的資金

Triggering Mechanisms of Dry Snow Slab Avalanches (TRIME)　　　　　　　　　　　　　　　
Marie Curie International Incoming Fellowship
2012年06月 - 2014年06月
Research Executive Agency / European Union, 研究代表者

白夜地帯の海鳥 概日リズム失わぬ　　　　　　　　　　　　　　　
2024年04月12日
本人以外
科学新聞 第3966号
［新聞・雑誌］

北極の海鳥、白夜でも同じ生活リズム 深夜の動き活発に
2024年03月24日
日本経済新聞社
日本経済新聞
［新聞・雑誌］

深夜の時間帯にフィーバーする北極域の海鳥繁殖地～録音データが明かす、白夜における海鳥の生活リズム～
2024年03月18日
北海道大学
プレスリリース（研究発表）
［その他］

Arctic nightlife: seabird colony bursts with sound at night
2024年03月15日
Hokkaido University
Press release
［その他］

Interview (nocturnal fracturing of ice near Mt. Everest)
2023年05月04日
BBC World Service Radio
Newsroom
London, Listen to a segment from 20 min 35 sec.

Read (the original paper):
https://doi.org/10.1029/2018GL079653, ［テレビ・ラジオ番組］

15 questions for climate change researcher Dr. Podolskiy
2023年01月
Hokkaido University
Climate Change
［インターネットメディア］

Understanding the significance of Greenland’s ice
2023年01月
Hokkaido University
Climate Change
［インターネットメディア］

「海のユニコーン」イッカクの行動の謎に迫る
2022年09月
本人
北海道大学
プレスリリース（研究発表）
［インターネットメディア］

Clarifying the chaos of narwhal behavior
2022年09月
Hokkaido University
Press release
［インターネットメディア］

Nature Podcast highlights of 2021
2021年12月29日
本人以外
Springer Nature America, Inc.
Nature Podcast
London, The Nature Podcast team select some of their favourite stories from the past 12 months., ［テレビ・ラジオ番組］

Press release with author’s message
2021年12月27日
本人
National Institute of Polar Research
ArCS II News Letter vol.3
Tokyo, ［会誌・広報誌］

Interview with Dr. Podolskiy about narwhals　　　　　　　　　　　　　　　
2021年09月21日
本人以外
GAZPROM
https://narwhal.ru
Saint-Peterburg, Russia, ［インターネットメディア］

Eavesdropping on a glacier’s base
2021年07月29日
本人以外
Nature
Podcast
London, 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, ［テレビ・ラジオ番組］

氷河の流動を海底地震計で検出
2021年07月19日
本人以外
日刊工業新聞社
日本工業新聞
東京, ［新聞・雑誌］

Underwater seismometer can hear how fast a glacier moves
2021年07月15日
Underwater World Publications, Ltd.
International Ocean Systems
Folcroft, PA 19032 USA, p. 10-11, ［新聞・雑誌］

世界初！海底地震計を使い，氷河流動の検出に成功
2021年07月08日
本人以外
北海道大学
プレスリリース
日本, 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～, ［インターネットメディア］

Underwater seismometer can hear how fast a glacier moves
2021年07月01日
本人以外
Hokkaido University,
Press Release
JP, 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., ［インターネットメディア］

The chaos beneath a glacier’s calving front
2021年05月20日
本人以外
American Geophysical Union,
EOS
Beurteaux, D. (2021), The chaos beneath a glacier’s calving front, AGU's Eos, 102., ［新聞・雑誌］

Revealing complex behavior of a turbulent plume at the calving front of a Greenlandic glacier
2021年03月25日
本人以外
Hokkaido University,
Press Release
JP, ［インターネットメディア］

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
2021年03月25日
本人以外
Hokkaido University,
Press Release
JP, ［インターネットメディア］

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
2020年11月20日
本人以外
国立大学附置研究所・センター会議
日本, 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, ［インターネットメディア］

Unicorns of the Sea Reveal Sound Activities
2020年06月18日
本人以外
Springer Nature America, Inc.
Scientific American Podcast
US, 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., ［テレビ・ラジオ番組］

Narwhal song with Evgeny Podolskiy
2020年06月17日
Laboratory News
the Podcast
UK, 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., ［テレビ・ラジオ番組］

Coronavirus: Weirdest Virus Ever?
2020年06月11日
Gimlet Media
Science VS
NY, US, 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., ［テレビ・ラジオ番組］

The secret, sonic lives of narwhals
2020年06月04日
本人以外
The Guardian,
Podcast
UK, 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., ［テレビ・ラジオ番組］

Researchers capture rarely heard narwhal vocalizations
2020年05月29日
本人以外
Hokkaido University,
Press Release
JP, Joint press release by American Geophysical Union (AGU) and Hokkaido University, ［インターネットメディア］

RESEARCHERS CAPTURE RARELY HEARD NARWHAL VOCALIZATIONS (VIDEO)
2020年05月20日
本人以外
American Geophysical Union,
Press Release
Washington DC, By Lauren Lipuma, ［インターネットメディア］

Tuning in to a glacial symphony
2020年04月17日
本人以外
American Geophysical Union,
EOS
US, Evans Ogden, L. (2020), Tuning in to a glacial symphony, AGU's Eos, 101., ［新聞・雑誌］

Acoustics of Meltwater Drainage in Greenland Glacial Soundscapes
2020年04月16日
本人以外
GlacierHub
US, by Audrey Ramming, ［インターネットメディア］

w/ Evgeny Podolskiy on ice-quakes and whales
2019年09月19日
本人以外
Apple Podcasts,
Of volcanoes and men.
Sweden, 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, ［テレビ・ラジオ番組］

津波を使って氷河から流出する氷山の量を測定～グリーンランドで新しい観測手法を開発
2019年04月19日
本人以外
Hokkaido University
Press Release
日本, ［インターネットメディア］

Icy nocturnes
2019年01月
本人以外
Springer Nature America, Inc.
Scientific American
US, Qui, J. (2019), Icy nocturnes, Scientific American, 320(1), 12-13, ［新聞・雑誌］

Tracking exploding ice cracks on Himalayan glaciers
2018年10月
American Geophysical Union,
GeoSpace
US, Learn, J. P. (2018), Tracking exploding ice cracks on Himalayan glaciers, AGU's GeoSpace., ［インターネットメディア］

Observing Glacier Calving through Time-Lapse Imagery and Surface Water Waves
2018年06月20日
本人以外
GlacierHub
By Sabrina Ho Yen Yin, ［インターネットメディア］

Glaciers are sensitive and complicated creatures
2017年04月25日
本人以外
Hokkaido University,
Spotlight on Research
JP, By Katrina-Kay Alaimo, ［インターネットメディア］

地震学の手法を活用して氷河変動のメカニズムを解き明かす
2017年02月
本人以外
北海道大学
理の社会実装を目指して
日本, 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。, ［会誌・広報誌］

グリーンランドで海洋の潮汐によって発生する氷河地震を発見
2016年06月
本人以外
北海道大学
低温研ニュース
日本, 2016年 6月 No.41
[pdf:29MB], ［新聞・雑誌］

Icequakes in Greenland
2016年03月28日
本人以外
Hokkaido University
Press Release
JP, ［インターネットメディア］

氷河地震 潮汐と運動　　　　　　　　　　　　　　　
2016年03月27日
本人以外
読売新聞
27/3/2016, p. 32, ［新聞・雑誌］

グリーンランドで海洋の潮汐によって発生する氷河地震を発見
2016年03月17日
本人以外
国立極地研究所
プレスリリース
日本, ［インターネットメディア］

Nature Podcast
2014年05月08日
本人以外
Springer
Nature
UK, >23m:25s, ［テレビ・ラジオ番組］

Avalanche hotspot revealed
2014年05月07日
本人以外
Springer
Nature
Qiu, J. Avalanche hotspot revealed. Nature 509, 142–143 (2014). https://doi.org/10.1038/509142a, ［新聞・雑誌］

Evgeny Podolskiy enrichit son parcours international à Irstea
2014年04月
本人以外
Irstea
Les échos d'Irstea
Grenoble, France, Bomboy, A. "Evgeny Podolskiy enrichit son parcours international à Irstea", N°10, avril-mai 2014, p.7, ［会誌・広報誌］

Of Ice and Men
2012年07月30日
本人以外
AAAS
Science
Washington DC, ［新聞・雑誌］