OYABU Ikumi

Field of Studies Physical Science
Program Polar Science
Parent Institute National Institute of Polar Research
Position Assistant Professor
Link https://researchmap.jp/i_oyabu
https://nrid.nii.ac.jp/ja/nrid/1000020758396/

Keyword

ice core,firn,Dome Fuji,glacial-interglacial cycle,Environmental change,Paleoclimate,Antarctica,Greenland,Noble gas,CO2,CH4,Aerosol,ice sheet

Papers (Latest 5)

Research Projects (Latest 5)

    • Atmospheric methane variability during the Holocene reconstructed from the Greenland and Antarctic ice cores
    • 2020-2023
    • keywords: メタン, 氷床コア, 南極, グリーンランド, 完新世, 温室効果ガス, 気候変動, 南北差, ボックスモデル
    • URL: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20H04327/
    • Mechanism for glacial inception from gas measurements of the Dome Fuji ice core, Antarctica
    • 2017-2019
    • keywords: 寒冷化, 気候変動, 氷床コア, 年代決定, 二酸化炭素, 退氷期, 南極, ドームふじ, 古気候・古環境, 環境変動, 古気候, 氷期・間氷期
    • URL: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17K12816/
    • 南極ドームふじ氷床コアを用いた気候変遷期の二酸化炭素濃度と全球平均海水温の復元
    • 2017-2019
    • keywords: 希ガス, 二酸化炭素, 全球海水温, 気候変動, 氷床コア, フィルン空気, 全球平均海水温, 南極, グリーンランド, 海水温, 古気候
    • URL: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17J00769/
    • N2, O2, and Ar in ice cores: Elemental and isotopic compositions
    • Author: Ikumi Oyabu, Kenji Kawamura
    • Publish date: 2025
    • Publisher: Elsevier
    • Journal: Encyclopedia of Quaternary Science
    • URL: https://cir.nii.ac.jp/crid/1360302865532890752
    • Latitudinal difference in sulfate formation from methanesulfonate oxidation in Antarctic snow imprinted on 17O-excess signature
    • Author: Shohei Hattori, Sakiko Ishino, Nozomi Suzuki, Fumio Nakazawa, Ikumi Oyabu, Shun Tsutaki, Motohiro Hirabayashi, Kazushi Noro, Norimichi Takenaka, Kenji Kawamura, Naohiro Yoshida, Hideaki Motoyama
    • Publish date: 2024-02
    • Publisher: Elsevier BV
    • Journal: Applied Geochemistry
    • URL: https://cir.nii.ac.jp/crid/1360021389798562048
    • Spatial distribution of vertical density and microstructure profiles in near-surface firn around Dome Fuji, Antarctica
    • Author: Ryo Inoue, Shuji Fujita, Kenji Kawamura, Ikumi Oyabu, Fumio Nakazawa, Hideaki Motoyama, Teruo Aoki
    • Publish date: 2024-01-30
    • Publisher: Copernicus GmbH
    • Journal: The Cryosphere
    • Keywords: Environmental sciences, QE1-996.5, GE1-350, Geology
    • URL: https://cir.nii.ac.jp/crid/1360865815493473024
    • The new Kr-86 excess ice core proxy for synoptic activity: West Antarctic storminess possibly linked to Intertropical Convergence Zone (ITCZ) movement through the last deglaciation
    • Author: Christo Buizert, Sarah Shackleton, Jeffrey P. Severinghaus, William H. G. Roberts, Alan Seltzer, Bernhard Bereiter, Kenji Kawamura, Daniel Baggenstos, Anaïs J. Orsi, Ikumi Oyabu, Benjamin Birner, Jacob D. Morgan, Edward J. Brook, David M. Etheridge, David Thornton, Nancy Bertler, Rebecca L. Pyne, Robert Mulvaney, Ellen Mosley-Thompson, Peter D. Neff, Vasilii V. Petrenko
    • Publish date: 2023-03-15
    • Publisher: Copernicus GmbH
    • Journal: Climate of the Past
    • Keywords: [SDU] Sciences of the Universe [physics], Environmental sciences, 550, TD172-193.5, [SDU]Sciences of the Universe [physics], TD169-171.8, GE1-350, Environmental protection, Environmental pollution
    • URL: https://cir.nii.ac.jp/crid/1360861707146523648
    • Temporal variations of surface mass balance over the last 5000 years around Dome Fuji, Dronning Maud Land, East Antarctica
    • Author: Ikumi Oyabu, Kenji Kawamura, Shuji Fujita, Ryo Inoue, Hideaki Motoyama, Kotaro Fukui, Motohiro Hirabayashi, Yu Hoshina, Naoyuki Kurita, Fumio Nakazawa, Hiroshi Ohno, Konosuke Sugiura, Toshitaka Suzuki, Shun Tsutaki, Ayako Abe-Ouchi, Masashi Niwano, Frédéric Parrenin, Fuyuki Saito, Masakazu Yoshimori
    • Publish date: 2023-02-02
    • Publisher: Copernicus GmbH
    • Journal: Climate of the Past
    • Keywords: [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, 550, Atmosphere, [SDU.OCEAN] Sciences of the Universe [physics]/Ocean, Atmosphere, Environmental protection, Environmental pollution, Environmental sciences, TD172-193.5, TD169-171.8, GE1-350
    • URL: https://cir.nii.ac.jp/crid/1360298757409721344

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