Abrupt climate changes and their impacts on terrestrial and marine environments reconstructed from Greenland ice cores

• Project/Area Number: 18H04140
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Medium-sized Section 63:Environmental analyses and evaluation and related fields
• Research Institution: National Institute of Polar Research
• Principal Investigator: Goto-Azuma Kumiko 国立極地研究所, 先端研究推進系, 教授 (80202620)
• Co-Investigator(Kenkyū-buntansha): 近藤 豊 国立極地研究所, 国際北極環境研究センター, 特任教授 (20110752) ; 平林 幹啓 国立極地研究所, 研究教育系, 特任助手 (20399356) ; 永塚 尚子 国立極地研究所, 研究教育系, 特任研究員 (30733208) ; 中澤 文男 国立極地研究所, 研究教育系, 助教 (80432178)
• Project Period (FY): 2018-04-01 – 2022-03-31
• Project Status: Completed (Fiscal Year 2023)
• Budget Amount: ¥44,070,000 (Direct Cost: ¥33,900,000、Indirect Cost: ¥10,170,000); Fiscal Year 2021: ¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000); Fiscal Year 2020: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000); Fiscal Year 2019: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000); Fiscal Year 2018: ¥12,870,000 (Direct Cost: ¥9,900,000、Indirect Cost: ¥2,970,000)
• Keywords: グリーンランド / 氷床コア / 急激な温暖化 / 急激な気候変動 / 陸海域環境

Outline of Final Research Achievements

During the last glacial period, more than 25 abrupt climate changes, known as Dansgaard-Oeschger events, were recorded in Greenland ice cores. These DO events were thought to have occurred when the Earth's system passed a tipping point. We have studied Dansgaard-Oeschger (DO) events 9 through 12, and part of 13, through analysis of a deep ice core drilled at the EGRIP site using a Continuous Flow Analysis (CFA) system. Based on the continuous and high temporal resolution record of stable water isotopes, calcium, and black carbon, we investigated the rates of warming prior to each interstadial and the associated terrestrial and marine environmental changes. The transition from each interstadial to stadial was also studied. For some DO events, environmental changes associated with cooling occurred much faster than the cooling events themselves.

Academic Significance and Societal Importance of the Research Achievements

人間活動による地球温暖化により、地球の気候システムがティッピング・ポイントを超えつつあるのではないかと懸念されているが、ティッピング・ポイントを超える際に生じる気候・環境の変化と、変化の速度が不明であった。本研究では過去にティッピング・ポイントを越えた際の温暖化の速度や、温暖化に伴う陸域や海域の変化を明かにした。また、寒冷化の速度は温暖化の速度よりも遅かったが、寒冷化の際にも急激な環境変化が生じることが明らかになった。これらの情報はティッピング・ポイントのメカニズムを解明するための数値モデルの検証データとしても重要であり、ティッピング・ポイントの将来予測にも貢献すると期待される

Research Products

• [Int'l Joint Research] コペンハーゲン大学(デンマーク)
• [Int'l Joint Research] マニトバ大学(カナダ)
• [Int'l Joint Research] ベルン大学(スイス)
• [Int'l Joint Research] アルフレッドウェゲナー極地海洋研究所(ドイツ)
• [Int'l Joint Research] ベルン大学(スイス)
• [Int'l Joint Research] コペンハーゲン大学(デンマーク)
• [Int'l Joint Research] アルフレッドウェゲナー極地海洋研究所(ドイツ)
• [Int'l Joint Research] ベニス大学(イタリア)
• [Int'l Joint Research] ベルン大学(スイス)
• [Int'l Joint Research] コペンハーゲン大学/デンマーク工科大学(デンマーク)
• [Int'l Joint Research] アルフレッドウェゲナー極地海洋研究所(ドイツ)
• [Int'l Joint Research] コロラド大学/砂漠研究所(米国)
• [Int'l Joint Research] コペンハーゲン大学/デンマーク工科大学(デンマーク)
• [Int'l Joint Research] アルフレッド・ウェゲナー極地海洋研究所/チュービンゲン大学(ドイツ)
• [Int'l Joint Research] ユトレヒト大学(オランダ)
• [Int'l Joint Research] ベルン大学(スイス)
• [Int'l Joint Research] ストックホルム大学(スウェーデン)
• [Int'l Joint Research]
• [Journal Article] High-resolution aerosol data from the top 3.8 kyr of the East Greenland Ice coring Project (EGRIP) ice core (2023)
  • Author(s): T. Erhardt, C. M. Jensen, F. Adolphi, H. A. Kjaer, R. Dallmayr, B. Twarloh, M. Behrens, M. Hirabayashi, K. Fukuda, J. Ogata et al
  • Journal Title: Earth System Science Data Volume: 15 Issue: 11 Pages: 5079-5091
  • DOI: 10.5194/essd-15-5079-2023
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] High-resolution aerosol concentration data from the Greenland NorthGRIP and NEEM deep ice cores (2022)
  • Author(s): Erhardt, T., Bigler, M., Federer, U., Gfeller , G., Leuenberger, D., Stowasser, O., Rothlisberger, R., Schupbach1, S., Ruth, U., Twarloh, B., Wegner, A., Goto-Azuma, K., etal.
  • Journal Title: Earth System Science Data Volume: 14 Issue: 3 Pages: 1215-1231
  • DOI: 10.5194/essd-14-1215-2022
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Contrasting source contributions of Arctic black carbon to atmospheric concentrations, deposition flux, and atmospheric and snow radiative effects (2022)
  • Author(s): Matsui Hitoshi、Mori Tatsuhiro、Ohata Sho、Moteki Nobuhiro、Oshima Naga、Goto-Azuma Kumiko、Koike Makoto、Kondo Yutaka
  • Journal Title: Atmospheric Chemistry and Physics Volume: 22 Issue: 13 Pages: 8989-9009
  • DOI: 10.5194/acp-22-8989-2022
  • Peer Reviewed / Open Access
• [Journal Article] Measurement of number and mass size distributions of light-absorbing iron oxide aerosols in liquid water with a modified single-particle soot photometer (2022)
  • Author(s): Mori Tatsuhiro、Kondo Yutaka、Goto-Azuma Kumiko、Moteki Nobuhiro、Yoshida Atsushi、Fukuda Kaori、Ogawa-Tsukagawa Yoshimi、Ohata Sho、Koike Makoto
  • Journal Title: Aerosol Science and Technology Volume: 57 Issue: 1 Pages: 35-49
  • DOI: 10.1080/02786826.2022.2144113
  • Peer Reviewed / Open Access
• [Journal Article] Discovery of argon in air-hydrate crystals in a deep ice core using scanning electron microscopy and energy-dispersive X-ray spectroscopy (2021)
  • Author(s): Uchida Tsutomu、Shigeyama Wataru、Oyabu Ikumi、Goto-Azuma Kumiko、Nakazawa Fumio、Homma Tomoyuki、Kawamura Kenji、Dahl-Jensen Dorthe
  • Journal Title: Journal of Glaciology Volume: ー Issue: 269 Pages: 1-10
  • DOI: 10.1017/jog.2021.115
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Variations in mineralogy of dust in an ice core obtained from northwestern Greenland over the past 100 years (2021)
  • Author(s): Nagatsuka, N., K. Goto-Azuma, A. Tsushima, K. Fujita, S. Matoba, Y. Onuma, M. Kadota, M. Minowa, Y. Komuro, H. Motoyama, and T. Aoki
  • Journal Title: Clim. Past Volume: 17 Issue: 3 Pages: 1341-1362
  • DOI: 10.5194/cp-17-1341-2021
  • NAID: 130007509097
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Microparticles in a deep ice core drilled at NEEM, Greenland: cryogenic scanning electron microscopic observations of location, size, shape, and constituent elements (2021)
  • Author(s): Shigeyama, W., Nakazawa, F., Goto-Azuma, K., Homma, T., Nagatsuka, N., Mateiu, R. V., Takata, M., Azuma, N., Dahl-Jensen, D.
  • Journal Title: Polar Data Journal Volume: 5 Pages: 99-124
  • DOI: 10.20575/00000031
  • NAID: 120007151403
  • ISSN: 2432-6771
  • URL: http://id.nii.ac.jp/1434/00000031/
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Seasonal Variation of Wet Deposition of Black Carbon at Ny‐?lesund, Svalbard (2021)
  • Author(s): Mori Tatsuhiro、Kondo Yutaka、Ohata Sho、Goto‐Azuma Kumiko、Fukuda Kaori、Ogawa‐Tsukagawa Yoshimi、Moteki Nobuhiro、Yoshida Atsushi、Koike Makoto、Sinha P. R.、Oshima Naga、Matsui Hitoshi、Tobo Yutaka、Yabuki Masanori、Aas Wenche
  • Journal Title: Journal of Geophysical Research: Atmospheres Volume: 126 Issue: 12
  • DOI: 10.1029/2020jd034110
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Ultraviolet germicidal irradiation of melted snow and ice samples: inactivation of microorganisms and effects on insoluble microparticles (2021)
  • Author(s): Nakazawa Fumio、Goto-Azuma Kumiko
  • Journal Title: Journal of Glaciology Volume: 68 Issue: 267 Pages: 166-173
  • DOI: 10.1017/jog.2021.78
  • Peer Reviewed / Open Access
• [Journal Article] Variation in recent annual snow deposition and seasonality of snow chemistry at the east Greenland ice core project (EGRIP) camp, Greenland (2021)
  • Author(s): Fumio Nakazawa, Naoko Nagatsuka, Motohiro Hirabayashi, Kumiko Goto-Azuma, Jørgen Peder Steffensen, Dorthe Dahl-Jensen
  • Journal Title: Polar Science Volume: 27 Pages: 100597-100597
  • DOI: 10.1016/j.polar.2020.100597
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Studies on the variability of the Greenland Ice Sheet and climate (2021)
  • Author(s): Kumiko Goto-Azuma, Tomoyuki Homma, Tomotaka Saruya, Fumio Nakazawa, Yuki Komuro, Naoko Nagatsuka, Motohiro Hirabayashi, Yutaka Kondo, Makoto Koike, Teruo Aoki, Ralf Greve, Jun'ichi Okuno
  • Journal Title: Polar Science Volume: 27 Pages: 100557-100557
  • DOI: 10.1016/j.polar.2020.100557
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Temporal and spatial variabilities in surface mass balance at the EGRIP site, Greenland from 2009 to 2017 (2021)
  • Author(s): Yuki Komuro, Fumio Nakazawa, Motohiro Hirabayashi, Kumiko Goto-Azuma, Naoko Nagatsuka, Wataru Shigeyama, Sumito Matoba, Tomoyuki Homma, Jørgen Peder Steffensen, Dorthe Dahl-Jensen
  • Journal Title: Polar Science Volume: 27 Pages: 100568-100568
  • DOI: 10.1016/j.polar.2020.100568
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] New technique for high-precision, simultaneous measurements of CH<sub>4</sub>, N<sub>2</sub>O and CO<sub>2</sub> concentrations; isotopic and elemental ratios of N<sub>2</sub>, O<sub>2</sub> and Ar; and total air content in ice cores by wet extraction (2020)
  • Author(s): Oyabu Ikumi、Kawamura Kenji、Kitamura Kyotaro、Dallmayr Remi、Kitamura Akihiro、Sawada Chikako、Severinghaus Jeffrey P.、Beaudette Ross、Orsi Ana?s、Sugawara Satoshi、Ishidoya Shigeyuki、Dahl-Jensen Dorthe、Goto-Azuma Kumiko、Aoki Shuji、Nakazawa Takakiyo
  • Journal Title: Atmospheric Measurement Techniques Volume: 13 Issue: 12 Pages: 6703-6731
  • DOI: 10.5194/amt-13-6703-2020
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Studies on the past environment using Arctic ice cores: History and future prospects (2019)
  • Author(s): 東 久美子
  • Journal Title: Chikyukagaku Volume: 53 Issue: 4 Pages: 133-148
  • DOI: 10.14934/chikyukagaku.53.133
  • NAID: 130007773192
  • ISSN: 0386-4073, 2188-5923
  • Year and Date: 2019-12-25
  • Peer Reviewed
• [Journal Article] Microstructural analysis of Greenland ice using a cryogenic scanning electron microscope equipped with an electron backscatter diffraction detector (2019)
  • Author(s): Shigeyama, W., Nagatsuka, N., Homma, T., Takata, M, Goto-Azuma, K., Weikusat, I., Drury, M. R., Kuiper, E.-J. N., Mateiu, R. V., Azuma, N., Dahl-Jensen, D., Kipfstuhl, S
  • Journal Title: Bulletin of Glaciological Research Volume: 37 Issue: 0 Pages: 31-45
  • DOI: 10.5331/bgr.19R01
  • NAID: 130007762669
  • ISSN: 1345-3807, 1884-8044
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Effects of microparticles on deformation and microstructural evolution of fine-grained ice (2019)
  • Author(s): SARUYA TOMOTAKA、NAKAJIMA KOKI、TAKATA MORIMASA、HOMMA TOMOYUKI、AZUMA NOBUHIKO、GOTO-AZUMA KUMIKO
  • Journal Title: Journal of Glaciology Volume: 65 Issue: 252 Pages: 531-541
  • DOI: 10.1017/jog.2019.29
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Glacially sourced dust as a potentially significant source of ice nucleating particles (2019)
  • Author(s): Tobo Yutaka、Adachi Kouji、DeMott Paul J.、Hill Thomas C. J.、Hamilton Douglas S.、Mahowald Natalie M.、Nagatsuka Naoko、Ohata Sho、Uetake Jun、Kondo Yutaka、Koike Makoto
  • Journal Title: Nature Geoscience Volume: 12 Issue: 4 Pages: 253-258
  • DOI: 10.1038/s41561-019-0314-x
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Black Carbon and Inorganic Aerosols in Arctic Snowpack (2019)
  • Author(s): Mori, T., Goto-Azuma, K., Kondo, Y., Ogawa-Tsukagawa, Y., Miura, K., Hirabayashi, M., Oshima, N., Koike, M., Kupiainen, K., Moteki, N., Ohata, S., Sinha, P. R., Sugiura, K., Aoki, T., Schneebeli, M., Steffen, K., Sato, A., Tsushima, A., Makarov, V., Omiya, S., Sugimoto, A., Takano, S., Nagatsuka
  • Journal Title: Journal of Geophysical Research: Atmospheres Volume: 124 Issue: 23 Pages: 13325-13356
  • DOI: 10.1029/2019jd030623
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Abrupt ice-age shifts in southern westerly winds and Antarctic climate forced from the north (2018)
  • Author(s): Buizert Christo、Sigl Michael、Severi Mirko、Markle Bradley R.、Wettstein Justin J.、McConnell Joseph R.、Pedro Joel B.、Sodemann Harald、Goto-Azuma Kumiko、Kawamura Kenji、Fujita Shuji、Motoyama Hideaki、Hirabayashi Motohiro、Uemura Ryu、Stenni Barbara、Parrenin Frederic、He Feng、Fudge T. J.、Steig Eric J.
  • Journal Title: Nature Volume: 563 Issue: 7733 Pages: 681-685
  • DOI: 10.1038/s41586-018-0727-5
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Observations and modelling of algal growth on a snowpack in north-western Greenland (2018)
  • Author(s): Onuma Yukihiko、Takeuchi Nozomu、Tanaka Sota、Nagatsuka Naoko、Niwano Masashi、Aoki Teruo
  • Journal Title: The Cryosphere Volume: 12 Issue: 6 Pages: 2147-2158
  • DOI: 10.5194/tc-12-2147-2018
  • Peer Reviewed / Open Access
• [Journal Article] Greenland records of aerosol source and atmospheric lifetime changes from the Eemian to the Holocene (2018)
  • Author(s): Schupbach S. et al. (Oyabu, I., 51人中46番目, 所属機関順)
  • Journal Title: Nature Communications Volume: 9 Issue: 1 Pages: 1-10
  • DOI: 10.1038/s41467-018-03924-3
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] Variations in mineralogy of dust in ice cores obtained from Greenland over the past 100 years (2023)
  • Author(s): Nagatsuka, N., Goto-Azuma, K., Tsushima, A., Fujita, K., Matoba, S., Onuma, Y., Komuro, Y., Hirabayashi, M., Ogata, J., Ogawa-Tsukagawa, Y., Kitamura, K., Aoki, T., Popp, T. J., Dahl-Jensen, D.
  • Organizer: Seventh International Symposium on Arctic Research
  • Int'l Joint Research
• [Presentation] Atmospheric CH4 concentration during the Holocene reconstructed from the NEEM (Greenland) and Dome Fuji (East Antarctica) ice cores (2023)
  • Author(s): Oyabu, I., Kawamura, K., Kitamura, K., Morimoto, S., Aoki, S., Goto-Azuma, K., Blunier, T.
  • Organizer: Seventh International Symposium on Arctic Research
  • Int'l Joint Research
• [Presentation] Abrupt shifts in terrestrial aerosol deposition in Greenland during Dansgaard-Oeschger events 9-13 (2023)
  • Author(s): Goto-Azuma, K., Moteki, N., Ogata, J., Fukuda, K., Hirabayashi, M., Komuro, Y., Oyabu, I., Kitamura, K., Fujita, S., Ogawa-Tsukagawa, Y., Mori, T., Ohata, S., Kondo, Y., Koike, M., Kawamura, K., Rasmussen, S. O., Dahl-Jensen, D.
  • Organizer: Seventh International Symposium on Arctic Research
  • Int'l Joint Research
• [Presentation] Dating and insoluble particle analysis of a shallow ice core drilled at EGRIP, Greenland (2023)
  • Author(s): Komuro, Y., Nakazawa, F., Goto-Azuma, K., Nagatsuka, N., Hirabayashi, M., Ogata, J., Fukuda, K., Kurita, N., Kitamura, K., Sinnl, G., Rasmussen, S. O., Popp, T. J., Dahl-Jensen, D.
  • Organizer: Seventh International Symposium on Arctic Research
  • Int'l Joint Research
• [Presentation] グリーンランド北東部における産業革命以後のブラックカーボン と硫酸塩エアロゾルの経年変動 －アイスコア連続融解分析装置（CFA）によるEGRIP浅層アイスコアの 高時間分解能分析－ (2023)
  • Author(s): 東久美子, 福田かおり, 平林幹啓, 尾形純, 小室悠紀, 中澤文男, 大藪幾美, 北村享太郎, 藤田秀二, 茂木信宏, 森樹大, 大畑祥, 近藤豊, 小池真, 栗田直幸, 塚川佳美, 川村賢二, Rasmussen, S. O., Sinnl, G., Popp, T. J., Dahl-Jensen, D.
  • Organizer: 雪氷研究大会2023
• [Presentation] Black carbon deposition in Northeast Greenland over the past 350 years (2023)
  • Author(s): Goto-Azuma, K., Fukuda, K., Ogata, J., Komuro, Y., Hirabayashi, M., Nakazawa, F., Oyabu, I., Kitamura, K. Moteki, N., Mori, T., Ohata, S., Kondo, Y., Koike, M., Oshima, N., Yonekura, A., Ogawa-Tsukagawa, Y., Kawamyura, K., Aoki, T., Kurita, N., Rasmussen, S. O., Sinnl, G., Popp, T. J., Dahl-Jensen, D.
  • Organizer: The 14th Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] グリーンランド氷床北東部および北西部における過去 100 年間の鉱物組成変動の比較 (2023)
  • Author(s): 永塚尚子, 東久美子, 藤田耕史, 小室悠紀, 平林幹啓, 尾形純, 福田かおり, 北村享太郎, 中澤文男, 大沼友貴彦, 栗田直幸, Sune Olander Rasmussen, Giulia Sinnl, Trevor James Popp, Dorthe Dahl-Jensen
  • Organizer: 雪氷研究大会2023
• [Presentation] グリーンランドアイスコアから復元する過去100年の鉱物ダスト起源変動と空間分布 (2023)
  • Author(s): 永塚尚子, 東久美子, 藤田耕史, 小室悠紀, 平林幹啓, 尾形純, 福田かおり, 北村享太郎, 中澤文男, 大沼友貴彦, 栗田直幸, Sune Olander Rasmussen, Giulia Sinnl, Trevor James Popp, Dorthe Dahl-Jensen
  • Organizer: 日本地球惑星科学連合2023年大会
• [Presentation] Regional variations in mineralogy of dust in ice cores obtained from northeastern and northwestern Greenland over the past 100 years (2023)
  • Author(s): 永塚尚子, 東久美子, 藤田耕史, 小室悠紀, 平林幹啓, 尾形純, 福田かおり, 北村享太郎, 中澤文男, 大沼友貴彦, 栗田直幸, Sune Olander Rasmussen, Giulia Sinnl, Trevor James Popp, Dorthe Dahl-Jensen
  • Organizer: The 14th Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Transport and deposition of Arctic black carbon (2023)
  • Author(s): Y. Kondo, H. Matsui, T. Mori, S. Ohata, N. Moteki, N. Oshima, K. Goto-Azuma, and M. Koike,
  • Organizer: PACES Open Science Meeting
  • Int'l Joint Research
• [Presentation] Where has Greenland ice core mineral dust come from over the past 100 years? (2023)
  • Author(s): Nagatsuka Naoko
  • Organizer: IGS Global Seminar
  • Int'l Joint Research / Invited
• [Presentation] Improved estimation of black carbon emissions from East Asia in the context of long-range transport to the Arctic (2023)
  • Author(s): Yugo Kanaya, K. Yamaji, T. Kinase, T. Miyakawa, F. Taketani, C. Zhu, Y. Choi, T. Sekiya, K. Ikeda, H. Tanimoto, D. Yamada, D. Narira, Y. Kondo, Z. Klimont, Y.-W. Kim, M. Takigawa
  • Organizer: PACES Open Science Meeting
  • Int'l Joint Research
• [Presentation] グリーンランド北西部および北東部で掘削されたアイスコア中の過去100年間の鉱物組成変動の比較 (2022)
  • Author(s): 永塚 尚子，東 久美子，對馬 あかね，藤田 耕史，的場 澄人，大沼 友貴彦，小室 悠紀，平林 幹啓，尾形 純，塚川 佳美，北村 享太郎，青木 輝夫，Trevor James Popp，Dorthe Dahl-Jensen
  • Organizer: 日本地球惑星科学連合2022年大会
• [Presentation] 水中に含まれた黒色酸化鉄粒子濃度の測定法の確立 (2022)
  • Author(s): 森 樹大, 近藤 豊, 東 久美子, 茂木 信宏,吉田 敦,福田 かおり,塚川 佳美,大畑 祥,小池 真
  • Organizer: 日本エアロゾル学会
• [Presentation] グリーンランドアイスコアから復元する過去100年の鉱物ダスト起源とその変動要因の解明 (2022)
  • Author(s): 永塚 尚子，東 久美子，對馬 あかね，藤田 耕史，的場 澄人，大沼 友貴彦，青木 輝夫
  • Organizer: 日本地球化学会第69回年会
  • Invited
• [Presentation] Measurement of Light-absorbing Iron Oxide Aerosols in Liquid Water with a Modified Single-Particle Soot Photometer (2022)
  • Author(s): Mori, T., Kondo, Y., Goto-Azuma, K., Moteki, N., Yoshida, A., Fukuda, K., Ogawa-Tsukagawa, Y., Ohata, S., Koike, M.
  • Organizer: American Association for Aerosol Research (AAAR)
  • Int'l Joint Research
• [Presentation] Abrupt shifts in terrestrial aerosol deposition in Greenland during Dansgaard-Oeschger events (2022)
  • Author(s): Goto-Azuma, K., Moteki, N., Ogata, J., Fukuda, K., Hirabayashi, M., Komuro, Y., Oyabu, I., Kitamura, K., Fujita, S., Ogawa-Tsukagawa, Y., Mori, T., Ohata, S., Kondo, Y., Koike. M., Kawamura, K., Rasmussen, S. O., Dahl-Jensen, D.
  • Organizer: Willy Dansgaard Centenary Symposium
  • Int'l Joint Research
• [Presentation] アイスコアを用いたグリーンランド氷床北部における過去100年間の鉱物組成変動の空間分布. (2022)
  • Author(s): 永塚 尚子, 東 久美子, 對馬 あかね, 藤田 耕史, 的場 澄人, 大沼 友貴彦, 小室 悠紀, 平林 幹啓,尾形 純, 塚川 佳美, 北村 享太郎, 青木 輝夫, Trevor James Popp，Dorthe Dahl-Jensen
  • Organizer: 雪氷研究大会2022
• [Presentation] Variations in mineralogy of dust in ice cores obtained from northwestern and northeastern Greenland over the past 100 years (2022)
  • Author(s): Nagatsuka, N., Goto-Azuma, K., Tsushima, A., Fujita, K., Matoba, S., Onuma, Y., Komuro, Y., Hirabayashi, M., Ogata, J., Ogawa-Tsukagawa, Y., Kitamura, K., Aoki, T., Popp, T. J., Dahl-Jensen，D.
  • Organizer: The 13th Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Snow pit study EastGRIP－Analysis of metals and solid particles－ (2021)
  • Author(s): Yuki Komuro, Fumio Nakazawa, Kumiko Goto-Azuma, Motohiro Hirabayashi
  • Organizer: EastGRIP International Spring/Summer Seminar Series
  • Int'l Joint Research
• [Presentation] グリーンランドで掘削されたアイスコア中の過去100年間の鉱物組成変動 (2021)
  • Author(s): 永塚尚子，東久美子，對馬あかね，藤田耕史，的場澄人，大沼友貴彦，Remi Dallmayr，門田萌，平林幹啓，尾形純，塚川佳美，北村享太郎，箕輪昌紘，小室悠紀，本山秀明， 青木輝夫，中澤文男, Trevor James Popp, Dorthe Dahl-Jensen
  • Organizer: 雪氷研究大会2021
• [Presentation] グリーンランドEGRIP浅層コアの年代決定及び固体粒子解析 (2021)
  • Author(s): 小室悠紀, 中澤文男, 東久美子, 平林幹啓, 尾形純, 福田かおり, 栗田直幸, 北村享太郎, 米倉綾香, Popp, Trevor J., Dorthe Dahl-Jensen
  • Organizer: 雪氷研究大会2021
• [Presentation] Concentrations and sizes of black carbon originated from anthropogenic and biomass burning emissions in Northwest Greenland over the past 350 years (2021)
  • Author(s): Kumiko Goto-Azuma, Yoshimi Ogawa-Tsukagawa, Yutaka Kondo, Remi Dallmayr, Jun Ogata, Nobuhiro Moteki, Sho Ohata, Tatsuhiro Mori, Makoto Koike, Kaori Fukuda, Motohiro Hirabayashi, Sumito Matoba, Yuki Komuro, Akane Tsushima, Naoko Nagatsuka, Koji Fujita, Naga Oshima, Kyotaro Kitamura, Kenji Kawamura, Teruo Aoki
  • Organizer: The 12th Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Recent seasonal changes of metal composition and size distribution of mineral particles in snow at EGRIP, Greenland (2021)
  • Author(s): Yuki Komuro, Fumio Nakazawa, Kumiko Goto-Azuma, Motohiro Hirabayashi, Wataru Shigeyama, Naoko Nagatsuka
  • Organizer: EGU General Assembly 2021
  • Int'l Joint Research
• [Presentation] Examination of ultraviolet germicidal radiation for inactivating microorganisms in melted snow and ice samples (2021)
  • Author(s): Fumio Nakazawa, Kumiko Goto-Azuma
  • Organizer: EGU General Assembly 2021
  • Int'l Joint Research
• [Presentation] Seasonal changes in concentration, metal composition and size distribution of mineral particles in recent snow at EGRIP, Greenland (2021)
  • Author(s): Yuki Komuro, Fumio Nakazawa, Kumiko Goto-Azuma, Motohiro Hirabayashi, Wataru Shigeyama, Naoko Nagatsuka
  • Organizer: 日本地球惑星科学連合2021年大会
• [Presentation] A biomass burning record over the past 350 years in an ice core from Northwest Greenland (2021)
  • Author(s): Kumiko Goto-Azuma, Yoshimi Ogawa-Tsukagawa, Yutaka Kondo, Remi Dallmayr, Jun Ogata, Nobuhiro Moteki, Sho Ohata, Tatsuhiro Mori, Makoto Koike, Kaori Fukuda, Motohiro Hirabayashi, Sumito Matoba, Yuki Komuro, Akane Tsushima, Naoko Nagatsuka et al.
  • Organizer: 日本地球惑星科学連合2021年大会
• [Presentation] Possible albedo reduction of snow surface due to black carbon over the past 350 years on the Greenland Ice Sheet estimated from the SIGMA-D ice core (2021)
  • Author(s): Teruo Aoki, Kumiko Goto-Azuma, Sumito Matoba, Rigen Shimada, Yutaka Kondo, Nobuhiro Moteki, Makoto Koike, Koji Fujita, Hideaki Motoyama, and Masahiro Hori
  • Organizer: 日本地球惑星科学連合2021年大会
• [Presentation] ニーオルスンにおける黒色炭素粒子の湿性沈着に関する研究 (2021)
  • Author(s): 森樹大, 近藤豊, 大畑祥, 東久美子, 福田かおり, 小川佳美, 茂木信宏, 吉田淳, 小池真, Sinha Puna, 大島長, 松井仁志, 當房豊, 矢吹正教, Aas Wenche
  • Organizer: 日本地球惑星科学連合2021年大会
• [Presentation] Inactivating microorganisms in melted snow and ice samples using ultraviolet germicidal radiation (2021)
  • Author(s): Fumio Nakazawa, Kumiko Goto-Azuma
  • Organizer: 日本地球惑星科学連合2021年大会
• [Presentation] Variations in mineralogy of dust in ice cores obtained from Greenland over the past 100 years (2021)
  • Author(s): Naoko Nagatsuka, Kumiko Goto-Azuma, Akane Tsushima, Koji Fujita, Sumito Matoba, Yukihiko Onuma, Remi Dallmayr, Motohiro Hirabayashi, Jun Ogata, Yoshimi Ogawa-Tsukagawa, Kyotaro Kitamura, Masahiro Minowa, Yuki Komuro, Hideaki Motoyama, Teruo Aoki, Fumio Nakazawa, Trevor James Popp, Dorthe Dahl-Jensen
  • Organizer: The 12th Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Dating and solid particle analysis of a shallow ice core obtained from EGRIP, Greenland (2021)
  • Author(s): Yuki Komuro, Fumio Nakazawa, Kumiko Goto-Azuma, Naoko Nagatsuka, Motohiro Hirabayashi, Jun Ogata, Kaori Fukuda, Naoyuki Kurita, Kyotaro Kitamura, Ayaka Yonekura, Trevor J. Popp, Dorthe Dahl-Jensen
  • Organizer: The 12th Symposium on Polar Science
• [Presentation] The effect of ultraviolet germicidal radiation on melted snow and ice samples for the inactivation of microorganisms (2020)
  • Author(s): Nakazawa, F., Goto-Azuma, K.
  • Organizer: The 11th Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Continuous flow analysis of iron oxide in a Greenland ice core using a modified single-particle soot photometer (2020)
  • Author(s): Goto-Azuma, K., Moteki, N. Ogawa-Tsukagawa, Y., Fukuda, K., Ohata, S., Yoshida, A., Mori, T., Kondo, Y., Koike, M., Hirabayashi, M., Dallmayr, M., Ogata, J., Kitamura, K., Matoba, S., Aoki, T.,
  • Organizer: The 11th Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Analysis of solid microparticles and metal components contained in snow at EGRIP, Greenland (2020)
  • Author(s): Komuro, Y., Nakazawa, F., Nagatsuka, N., Hirabayashi, M., Shigeyama, W., Matoba, S., Homma, T., Goto-Azuma, K.
  • Organizer: The 11th Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Temporal and spatial variabilities in recent surface mass balance at EGRIP, Greenland (2020)
  • Author(s): Komuro, Y., Nakazawa, F., Nagatsuka, N., Hirabayashi, M., Shigeyama, W., Matoba, S., Homma, T., Goto-Azuma, K.
  • Organizer: The 11th Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] 雪氷融解試料中の微生物固定を目的とした紫外線照射処理の検討（２） (2020)
  • Author(s): 中澤 文男, 東 久美子
  • Organizer: 雪氷研究大会
• [Presentation] グリーンランドEGRIPのピット試料に含まれる固体微粒子および金属成分の解析 (2020)
  • Author(s): (12)小室悠紀，中澤文男，永塚尚子, 平林幹啓, 繁山航, 的場澄人, 本間智之, 東久美子
  • Organizer: 雪氷研究大会
• [Presentation] Effects of impurity drag in NEEM (North Greenland Eemian ice Drilling) ice core being applied phase transition (2020)
  • Author(s): Homma, T., Saruya, T., Takata, M., Azuma, N., Goto-Azuma, K.
  • Organizer: International Sixth Symposium on Arctic Research (ISAR-6)
  • Int'l Joint Research
• [Presentation] Recent variations of surface mass balance and dust deposition at EGRIP, Greenland (2020)
  • Author(s): Komuro, Y., Nakazawa, F., Nagatsuka, N., Hirabayashi, M., Shigeyama, W., Homma, T., Goto-Azuma, K.
  • Organizer: International Sixth Symposium on Arctic Research (ISAR-6)
  • Int'l Joint Research
• [Presentation] Seasonality of snow chemistry at the East Greenland Ice Core Project (EGRIP) camp, Greenland (2020)
  • Author(s): Nakazawa, F., Natagsuka, N., Hirabayashi, M., Goto-Azuma, K.
  • Organizer: International Sixth Symposium on Arctic Research (ISAR-6)
  • Int'l Joint Research
• [Presentation] Spatial variation of surface mass balance and seasonal variation of dust deposition at EGRIP, Greenland (2019)
  • Author(s): Komuro, Y., Nakazawa, F., Nagatsuka, N., Hirabayashi, M., Shigeyama, W., Homma, T., Goto-Azuma, K.
  • Organizer: The Tenth Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Variations in mineralogical composition of dust present in the Greenland SIGMA-D ice core and EGRIP snow over the past 100 years (2019)
  • Author(s): Nagatsuka, N., Goto-Azuma, K., Tsushima, A., Motoyama, H., Matoba, S., Fujita, K., Yamasaki, T., Onuma, Y., Komuro, Y., Minowa, M., Aoki, T., Hirabayashi, M., Nakazawa, F., Dahl-Jensen, D.
  • Organizer: The Tenth Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Seasonal variations of snow chemistry at EGRIP, Greenland (2019)
  • Author(s): Nakazawa, F., Nagatsuka, N., Hirabayashi M., Goto-Azuma
  • Organizer: The Tenth Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Location, morphology and size distribution of solid particles in an ice core retrieved from NEEM, Greenland (2019)
  • Author(s): Shigeyama, W., Homma, T., Takata, M., Goto-Azuma, K., Azuma N., Dahl-Jensen, D.
  • Organizer: The Tenth Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Variations of concentrations and sizes of black carbon particles in Northwest Greenland over the past 350 years (2019)
  • Author(s): Goto-Azuma, K., Ogawa-Tsukagawa, Y., Kondo, Y., Dallmayer, R., Hirabayashi, M., Ogata, J., Kitamura, K., Kawamura, K., Motoyama, H., Matoba, S., Kadota, M., Aoki, T., Moteki, N., Ohata, S., Mori, T., Koike, M., Komuro, Y., Tsushima, A., Nagatsuka, N., Shigeyama, W., Fujita, K.,
  • Organizer: AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] Variations in mineralogy of dust in snow and ice core obtained from Greenland Ice Sheet over the past 100 years (2019)
  • Author(s): Nagatsuka, N., Goto-Azuma, K., Tsushima, A., Motoyama, H., Matoba, S., Fujita, K., Yamasaki, T., Onuma, Y., Komuro, Y., Minowa, M., Aoki, T., Hirabayashi, M.
  • Organizer: NEGIS Symposium
  • Int'l Joint Research
• [Presentation] グリーンランド氷床アイスコアおよび積雪ピットサンプル中の過去100 年間の鉱物組成変動の解明 (2019)
  • Author(s): 永塚尚子，東久美子，對馬あかね，本山秀明，的場澄人，藤田耕史，山崎哲秀，大沼友貴彦，箕輪昌紘，青木輝夫，平林幹啓，中澤文男，Dorthe Dahl-Jensen
  • Organizer: 雪氷研究大会2019
• [Presentation] 雪氷融解試料中の微生物固定を目的とした紫外線照射処理の検討 (2019)
  • Author(s): 中澤文男, 東久美子
  • Organizer: 雪氷研究大会2019
• [Presentation] グリーンランド北西部における過去350年間のブラックカーボン及びダストの季節変化及び経年変化, (2019)
  • Author(s): 東久美子, 塚川佳美, 近藤豊, ダルマイヤー・レミ, 平林幹啓, 尾形純, 北村亨太郎, 川村賢二,本山秀明, 的場澄人, 門田萌, 青木輝夫, 茂木信宏, 大畑祥, 森樹大, 小池真, 小室悠紀, 對馬あかね, 永塚尚子, 繁山 航, 藤田耕史
  • Organizer: 雪氷研究大会2019
• [Presentation] グリーンランドEGRIP における近年の表面質量収支とダスト変動 (2019)
  • Author(s): 小室悠紀, 中澤文男, 永塚尚子, 平林幹啓, 繁山航, 本間智之, 東久美子
  • Organizer: 雪氷研究大会2019
• [Presentation] グリーンランド氷床コアに含まれる微粒子の元素分析 (2019)
  • Author(s): 繁山航, 東久美子, 中澤文男, 高田守昌, 本間智之, 東信彦, Dahl-Jensen, D.
  • Organizer: 雪氷研究大会2019
• [Presentation] 高分解能に特化した氷床コア融解分析装置の開発 －融解制御の検討と精度評価－ (2019)
  • Author(s): 高田守昌, 東久美子
  • Organizer: 雪氷研究大会2019
• [Presentation] グリーンランドにおける人為起源及び自然起源のブラックカーボンの濃度, 粒径分布, 季節変動の経年変化 (2019)
  • Author(s): 東久美子, 塚川佳美, 近藤豊, ダルマイヤー・レミ, 平林幹啓, 尾形純, 北村亨太郎, 川村賢二, 本山秀明, 的場澄人, 門田萌, 青木輝夫, 茂木信宏, 大畑祥, 森樹大, 小池真, 小室悠紀, 對馬あかね, 永塚尚子, 繁山航, 藤田耕史
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] 南極とグリーンランドにおける深層アイスコア掘削 (2019)
  • Author(s): 川村賢二, 東久美子, 藤田秀二, 中澤文男, 大藪幾美, 本山秀明, 阿部彩子
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Black carbon and inorganic aerosols in snowpack over the Arctic (2019)
  • Author(s): Mori, T., Goto-Azuma, K., Kondo, Y., Ogawa-Tsukagawa, Y., Miura, K., Hirabayashi, M., Oshima, N., Koike, M., Kupiainen, K., Moteki, N., Ohata, S., Sinha, P. R., Sugiura, K., Aoki, T., Schneebeli, M., Steffen, K., Sato, A., Tsushima, A., Makarov, V., Omiya, S., Sugimoto, A. and Takano, S.
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Variations in mineralogy of dust in the Greenland SIGMA-D ice core over the past 100 years using SEM (2019)
  • Author(s): Nagatsuka, N., Goto-Azuma, K., Tsushima, A., Motoyama, H., Matoba, S., Fujita, K., Yamasaki, T., Onuma, Y., Komuro, Y., Minowa, M., Aoki, T., Hirabayashi, M., Nakazawa, F., Dahl-Jensen, D.
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] 極域アイスコアに眠る古代菌類の研究とその将来展望 (2019)
  • Author(s): 中澤文男, 辻雅晴, 伊村智
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] グリーンランド氷床コアにおける固体微粒子の粒径と形状 (2019)
  • Author(s): 繁山航, 東久美子, 福田かおり, 中澤文男, 高田守昌, 本間智之, 東信彦, Dorthe Dahl-Jensen
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Microstructure in EastGRIP (2018)
  • Author(s): Weikusat, I., Kerch, J., Jansen, D., Eichler, J., Homma, T., Kleitz, I., Shigeyama, W., Stoll, N., Azuma, N., Goto-Azuma, K., Faria, S., H., Kipfstuhl, S. and Dahl-Jensen, D.
  • Organizer: EGU General Assembly 2018
  • Int'l Joint Research
• [Presentation] グリーンランドEGRIP計画における2016～2018年の日本の観測活動及び氷床コア解析 (2018)
  • Author(s): 東久美子, 川村賢二, 中澤文男, 平林幹啓, 永塚尚子, 繁山航, 尾形純, 福田かおり, 本間智之
  • Organizer: 日本地球惑星科学連合2018年大会
• [Presentation] 南北両極におけるアイスコア掘削プロジェクト (2018)
  • Author(s): 東久美子, 川村賢二, 藤田秀二, 中澤文男, 本山秀明
  • Organizer: 日本地球惑星科学連合2018年大会
• [Presentation] 走査型電子顕微鏡を使ったグリーンランド氷床北西部SIGMA-Dアイスコア中の鉱物組成変動の解明 (2018)
  • Author(s): 永塚尚子, 東久美子, 本山秀明, 的場澄人, 藤田耕史, 山崎哲秀, 大沼友貴彦, 箕輪昌紘, 青木輝夫, 平林幹啓, Dallmayr Remi
  • Organizer: 日本地球惑星科学連合2018年大会
• [Presentation] グリーンランド・EGRIPにおけるピット観測から明らかになった近年の年間堆積量と積雪中の化学成分とダスト濃度の季節変動 (2018)
  • Author(s): 中澤文男, 永塚尚子, 平林幹啓, 東久美子
  • Organizer: 日本地球惑星科学連合2018年大会
• [Presentation] グリーンランド深層アイスコアに含まれる固体微粒子のその場観察 (2018)
  • Author(s): 繁山航, 永塚尚子, 本間智之, 高田守昌, 東久美子, Weikusat, I., Drury, M., Kuiper, E., Pennock, G., Mateiu, R., 東信彦，Dahl-Jensen, D.
  • Organizer: 日本地球惑星科学連合2018年大会
• [Presentation] 微細結晶粒氷のクリープ変形における結晶粒径と含有不純物の影響 (2018)
  • Author(s): 猿谷友孝, 中島甲葵, 高田守昌, 本間智之, 東信彦, 東久美子
  • Organizer: 日本地球惑星科学連合2018年大会
• [Presentation] High-resolution analyses of black carbon and dust in a Greenland ice core (2018)
  • Author(s): Goto-Azuma, K., Y. Ogawa-Tsukagawa, Y. Kondo, R. Dallmay, M. Hirabayashi, J. Ogata, K. Kitamura, H. Motoyama, S. Matoba, M. Kadota, T. Aoki, N. Moteki, S. Ohata, T. Mori, M. Koike, Y. Komuro, A. Tsushima, N. Nagatsuka and K. Fujita
  • Organizer: Polar 2018
  • Int'l Joint Research
• [Presentation] ICP質量分析計を接続した連続融解分析装置による雪氷コアの分析 (2018)
  • Author(s): 平林幹啓, 尾形純, 東久美子, 鹿籠 康行
  • Organizer: 日本分析化学会第67年会
• [Presentation] Microstructure in the EastGRIP ice core, Greenland (2018)
  • Author(s): Weikusat, I., J. Kerch, D. Jansen, J. Eichler, T. Homma, I. Kleitz, W. Shigeyama, N. Stoll, N. Azuma, K. Goto-Azuma, S. H. Faria, S. Kipfstuhl and D. Dahl-Jensen
  • Organizer: JAGFOS 2018 Science Symposium
  • Int'l Joint Research
• [Presentation] グリーンランド北西部のアイスコアを用いたブラックカーボンの高時間分解能解析 (2018)
  • Author(s): 東久美子，塚川佳美，近藤豊，ダルマイヤー・レミ，平林幹啓，尾形純，北村亨太郎，川村賢二，本山秀明，的場澄人，門田萌，青木輝夫，茂木信宏，大畑祥，森樹大，小池真，小室悠紀，對馬あかね，永塚尚子，藤田耕史
  • Organizer: 雪氷研究大会2018
• [Presentation] ICP 質量分析計を接続した連続融解分析装置による多元素同時定量 (2018)
  • Author(s): 平林幹啓，尾形純，東久美子，鹿籠康行
  • Organizer: 雪氷研究大会2018
• [Presentation] グリーンランド氷床北西部SIGMA-D アイスコア中の過去100 年間の鉱物組成変動の解明 (2018)
  • Author(s): 永塚尚子，東久美子，對馬あかね，本山秀明，的場澄人，藤田耕史，山崎哲秀，大沼友貴彦，箕輪昌紘，青木輝夫，平林幹啓
  • Organizer: 雪氷研究大会2018
• [Presentation] 多結晶氷の力学特性・組織変化における結晶粒径の影響 (2018)
  • Author(s): 猿谷友孝, 高田守昌, 本間智之, 東信彦, 東久美子
  • Organizer: 雪氷研究大会2018
• [Presentation] グリーンランド南東ドームコア中の金属成分解析によるエアロゾル循環推定 (2018)
  • Author(s): 佐々木千晶, 鈴木利孝, 平林幹啓, 的場澄人, 飯塚芳徳
  • Organizer: 雪氷研究大会2018
• [Presentation] 期のグリーンランド氷床コアにおける固体微粒子のその場観察 (2018)
  • Author(s): 繁山航，永塚尚子，本間智之，高田守昌，東久美子，Mateiu, R. V.，東信彦，Dahl-Jensen, D
  • Organizer: 雪氷研究大会2018
• [Presentation] Physical properties of NEGIS ice - The upper 1650m in EGRIP (2018)
  • Author(s): Weikusat, I., N. Stoll, J. Kerch, I. Kleitz, J. Eichler, W. Shigeyama, T. Homma, D. Jansen, M. Bayer-Giraldi, E. Kuiper, J. Westhoff, S. Saruya, K. Goto-Azuma, N. Azuma, S. H. Faria, S. Kipfstuhl and D. Dahl-Jensen
  • Organizer: NEGIS Symposium
  • Int'l Joint Research
• [Presentation] Concentrations and size distribution of black carbon in Northwest Greenland during the past 350 years reconstructed from an ice core (2018)
  • Author(s): Goto-Azuma, K., Y. Ogawa-Tsukagawa, Y. Kondo, R. Dallmayr, M. Hirabayashi, J. Ogata, K. Kitamura, K. Kawamura, H. Motoyama, S. Matoba, T. Aoki, N. Moteki, S. Ohata, T. Mori, M. Koike, Y. Komuro, A. Tsushima, N. Nagatsuka, W. Shigeyama and K. Fujita
  • Organizer: The Ninth Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Culture of ancient fungi resting in the polar ice cores and future prospects of this research (2018)
  • Author(s): Nakazawa, F., M. Tsuji and S. Imura
  • Organizer: The Ninth Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Particle alignments observed in a Greenland ice core, retrieved by North Eemian Ice Drilling (NEEM) (2018)
  • Author(s): Shigeyama, W., T. Homma, M. Takata, K. Goto-Azuma, N. Azuma, and D. Dahl-Jensen
  • Organizer: The Ninth Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Physical properties of NEGIS ice - The upper 1650m in EGRIP (2018)
  • Author(s): Weikusat, I., N. Stoll, J. Kerch, I. Kleitz, J. Eichler, W. Shigeyama, T. Homma, D. Jansen, M. Bayer-Giraldi, E. Kuiper, J. Westhoff, T. Saruya, K. Goto-Azuma, N. Azuma, S. H. Faria, S. Kipfstuhl and D. Dahl-Jensen
  • Organizer: The Ninth Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Identification of origins and biogeochemical process of cryoconite on glaciers using Sr and Nd stable isotope ratios (2018)
  • Author(s): Nagatsuka, N., N. Takeuchi, K. ?C. Shin, and T. Nakano
  • Organizer: The Ninth Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Variations in mineralogy of dust in an ice core obtained from Northwestern Greenland during the past 100 years (2018)
  • Author(s): Nagatsuka, N., K. Goto-Azuma, A. Tsusima, H. Motoyama, S. Matoba, K. Fujita, T. Yamasaki, Y. Onuma, M. Minowa and T. Aoki
  • Organizer: The Ninth Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] In-situ observations of solid particulate impurities in glacial ice retrieved at NEEM, Greenland (2018)
  • Author(s): Shigeyama, W., N. Nagatsuka, T. Homma, M. Takata, K. Goto-Azuma, R. V. Mateiu, N. Azuma and D. Dahl-Jensen
  • Organizer: AGU Fall Meeting 2018
  • Int'l Joint Research
• [Book] 雲の物理とエアロゾル (2024)
  • Author(s): 近藤 豊、小池 真
  • Total Pages: 288
  • Publisher: 東京大学出版会
  • ISBN: 9784130627313
• [Remarks] 国立極地研究所アイスコア研究センター
  • URL: http://polaris.nipr.ac.jp/~icrc/NC/htdocs/