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Reconstruction of the East Antarctic Ice Sheet thickness for the last 3 million years and mechanisms of their changes

Research Project

Project/Area Number 16H05739
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section海外学術
Research Field Geology
Research InstitutionNational Institute of Polar Research

Principal Investigator

Suganuma Yusuke  国立極地研究所, 研究教育系, 准教授 (70431898)

Co-Investigator(Kenkyū-buntansha) 奥野 淳一  国立極地研究所, 研究教育系, 助教 (00376542)
Project Period (FY) 2016-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2019: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2017: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2016: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords東南極氷床 / 表面露出年代測定 / GIA / 周極深層水 / 海水準 / 氷河地形 / 海水準変動 / 氷床融解 / 気候システム / 湖沼堆積物 / 南極 / 氷床変動 / 地形地質 / 南極氷床 / 無人ヘリ / 第四紀地質学 / 東南極氷床変動 / 氷河地形解析 / 古気候・古海洋 / GIAモデリング
Outline of Final Research Achievements

The recent observations of the Antarctic ice sheet melt and its contribution to the sea-level rise are of great importance to human society. However, the mechanism of the Antarctic ice sheet melting is still largely unknown, which hampers future projections with higher precision. Here, we reconstruct long-term changes in the East Antarctic ice sheet based on field surveys and sample analysis aided by the Solid Earth model simulations, which allow a quantitative estimate of the ice sheet changes. Based on these analyses, the intensified warm current incision is thought to be a trigger of the significant Antarctic ice sheet melt in the past.

Academic Significance and Societal Importance of the Research Achievements

現在観測されている南極氷床の融解傾向が,長期的に継続,もしくは加速し,大規模な氷床融解へと繋がるかについては,不明な点も残されており,現状の海水準上昇の将来予測には不確実性が大きい.本研究では,地形・地質記録から過去の長期的南極氷床の変動の復元に成功し,氷床融解メカニズムの一部を明らかにした.この成果は,将来予測モデルの再現性確認や改良を通して,海水準上昇を含む将来予測の高精度化に資するものとなる.

Report

(6 results)
  • 2021 Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (39 results)

All 2021 2020 2019 2018 2017 Other

All Int'l Joint Research (17 results) Journal Article (12 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 12 results,  Open Access: 8 results,  Acknowledgement Compliant: 1 results) Presentation (7 results) (of which Int'l Joint Research: 6 results,  Invited: 1 results) Patent(Industrial Property Rights) (3 results)

  • [Int'l Joint Research] Stockholm University(スウェーデン)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Norwegian University(ノルウェー)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Purdue University(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Aarhus University(デンマーク)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Geomorphology & Glaciology/Department of Physical Geography/Stockholm University(スウェーデン)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Alfred Wegener Institute(ドイツ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] British Antarctic Survey(英国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] GNS Science, National Isotope Centre(ニュージーランド)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Purdue University(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Alfred Wegener Institute(Germany)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] British Antarctic Survey(英国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] GNS Science, National Isotope Centre(ニュージーランド)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Purdue University(米国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Alfred Wegener Institute (AWI)(Germany)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] British Antarctic Survey(英国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] GNS Science, National Isotope Centre(New Zealand)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] Purdue University(米国)

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Excess ice loads in the Indian Ocean sector of East Antarctica during the last glacial period2021

    • Author(s)
      Ishiwa Takeshige、Okuno Jun'ichi、Suganuma Yusuke
    • Journal Title

      Geology

      Volume: 49 Issue: 10 Pages: 1182-1186

    • DOI

      10.1130/g48830.1

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 日本南極地域観測隊アーカイブ空中写真を用いた数値表層モデル作成とその有用性2021

    • Author(s)
      川又基人,土井浩一郎,澤柿教伸,菅沼悠介
    • Journal Title

      地理学評論

      Volume: 94 Pages: 1-16

    • NAID

      40022463724

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Perspectives on a Seamless Marine-lake Sediment Coring Study in East Antarctica2020

    • Author(s)
      SUGANUMA Yusuke、ISHIWA Takeshige、KAWAMATA Moto、OKUNO Jun'chi、KATSUKI Kota、ITAKI Takuya、SEKI Osamu、KANEDA Heitaro、MATSUI Hiroki、HANEDA Yuki、FUJII Masakazu、HIRANO Daisuke
    • Journal Title

      Journal of Geography (Chigaku Zasshi)

      Volume: 129 Issue: 5 Pages: 591-610

    • DOI

      10.5026/jgeography.129.591

    • NAID

      130007938997

    • ISSN
      0022-135X, 1884-0884
    • Year and Date
      2020-10-25
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reconstruction of Ice Sheet Retreat History at Skarvsnes, Southern Part of the Soya Coast, East Antarctica, Based on Glacial Landforms and Surface Exposure Ages2020

    • Author(s)
      KAWAMATA Moto、SUGANUMA Yusuke、DOI Koichiro、SAWAGAKI Takanobu、HATTORI Akihisa
    • Journal Title

      Journal of Geography (Chigaku Zasshi)

      Volume: 129 Issue: 3 Pages: 315-336

    • DOI

      10.5026/jgeography.129.315

    • NAID

      130007872539

    • ISSN
      0022-135X, 1884-0884
    • Year and Date
      2020-06-25
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ice surface changes during recent glacial cycles along the Jutulstraumen and Penck Trough ice streams in western Dronning Maud Land, East Antarctica2020

    • Author(s)
      Andersen J.L.、Newall J.C.、Blomdin R.、Sams S.E.、Fabel D.、Koester A.J.、Lifton N.A.、Fredin O.、Caffee M.W.、Glasser Neil F.、Rogozhina I.、Suganuma Y.、Harbor J.M.、Stroeven A.P.
    • Journal Title

      Quaternary Science Reviews

      Volume: 249 Pages: 106636-106636

    • DOI

      10.1016/j.quascirev.2020.106636

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Abrupt Holocene ice-sheet thinning along the southern Soya Coast, L?tzow-Holm Bay, East Antarctica, revealed by glacial geomorphology and surface exposure dating2020

    • Author(s)
      Kawamata Moto、Suganuma Yusuke、Doi Koichiro、Misawa Keiji、Hirabayashi Motohiro、Hattori Akihisa、Sawagaki Takanobu
    • Journal Title

      Quaternary Science Reviews

      Volume: 247 Pages: 106540-106540

    • DOI

      10.1016/j.quascirev.2020.106540

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The glacial geomorphology of western Dronning Maud Land, Antarctica2020

    • Author(s)
      Newall J. C. H.、Dymova T.、Serra E.、Blomdin R.、Fredin O.、Glasser N. F.、Suganuma Y.、Harbor J. M.、Stroeven A. P.
    • Journal Title

      Journal of Maps

      Volume: 16 Issue: 2 Pages: 468-478

    • DOI

      10.1080/17445647.2020.1761464

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 年代測定に基づく東南極宗谷海岸南部 Skarvsnes における氷床後退過程の復元2020

    • Author(s)
      川又基人,菅沼悠介,土井浩一郎,澤柿教伸,服部晃久,
    • Journal Title

      地学雑誌

      Volume: -

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 東南極における海域-陸域シームレス堆積物掘削研究の展望2020

    • Author(s)
      菅沼悠介,石輪健樹,川又基人,奥野淳一,香月興太,板木拓也,関宰,金田平太郎,松井浩紀,羽田裕貴,藤井昌和,平野大輔
    • Journal Title

      地学雑誌

      Volume: -

    • NAID

      130007938997

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The weathering of granitic rocks in a hyper-arid and hypothermal environment: A case study from the S?r-Rondane Mountains, East Antarctica2018

    • Author(s)
      Kanamaru Tatsuo、Suganuma Yusuke、Oiwane Hisashi、Miura Hideki、Miura Makoto、Okuno Jun'ichi、Hayakawa Hideaki
    • Journal Title

      Geomorphology

      Volume: 317 Pages: 62-74

    • DOI

      10.1016/j.geomorph.2018.05.015

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 氷上からの湖底・海底堆積物掘削プロジェクトの報告(JARE-58/59)2018

    • Author(s)
      菅沼悠介,田邊優貴子,香月興太,柴田大輔,川又基人
    • Journal Title

      南極資料

      Volume: 62 Pages: 15-42

    • NAID

      120006495716

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Unmanned Aerial Vehicle (UAV)-based Survey in Antarctica for High-definition Topographic Measurements2017

    • Author(s)
      菅沼悠介,川又基人,白水薫,小山拓志,土井浩一郎,金田平太郎,青山雄一,早河秀章,小花和宏之
    • Journal Title

      Journal of Geography (Chigaku Zasshi)

      Volume: 126 Issue: 1 Pages: 1-24

    • DOI

      10.5026/jgeography.126.1

    • NAID

      130006776919

    • ISSN
      0022-135X, 1884-0884
    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Ice sheet thinning since the Last Glacial Maximum in central Dronning Maud Land, East Antarctica2021

    • Author(s)
      Yusuke Suganuma, Heitaro Kaneda, Takushi Koyama, Takeshige Ishiwa, Jun’ichi Okuno, Motohiro Hirabayashi, and Magic DML team
    • Organizer
      The 12th Symposium on Polar Science
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ice retreat history in Pine Island Bay, revealed by sedimentary Be-10 records2018

    • Author(s)
      Suganuma, Y., Kuhn, G., Hillenbrand, CD., Zondervan
    • Organizer
      SCAR
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Reconstruction of ice retreat history in Pine Island Bay, West Antarctica, based on sedimentary Be-10 records2018

    • Author(s)
      Suganuma, Y., Kuhn, G., Hillenbrand, CD., Zondervan
    • Organizer
      JpGU
    • Related Report
      2018 Annual Research Report
  • [Presentation] Yusuke Suganuma, Heitaro Kaneda, Tasuo Kanamaru, Takushi Koyama, Jun’ichi Okuno2017

    • Author(s)
      Reconstruction of the East Antarctic ice sheet variability during the last 3 Ma in the central & eastern Droning Maud Land, East Antarctica
    • Organizer
      The Seventh Symposium on Polar Science will be held at the National Institute of Polar Research
    • Place of Presentation
      東京,立川市
    • Year and Date
      2017-11-29
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] East Antarctic ice sheet variability during the last 3 Ma in the central & eastern Droning Maud Land2017

    • Author(s)
      Suganuma, Y. and Okuno, J.
    • Organizer
      PMIP2017(Keynote Lecture)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Reconstruction of the East Antarctic ice sheet variability during the last 3 Ma in the central & eastern Droning Maud Land, East Antarctica2017

    • Author(s)
      Suganuma, Y., Okuno, J., Kanamaru, T., Kaneda, H., Koyama, T.,
    • Organizer
      PAIS2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] e-10 evidence for a paleo-subglacial lake and subsequent deglaciation processes in Pine Island Bay, West Antarctica2017

    • Author(s)
      Suganuma, Y., Kuhn, G., Hillenbrand, C-D., Zondervan
    • Organizer
      PAIS2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Patent(Industrial Property Rights)] 土砂採取装置2020

    • Inventor(s)
      菅沼悠介 , 香月興太 , 田邊優貴子
    • Industrial Property Rights Holder
      菅沼悠介 , 香月興太 , 田邊優貴子
    • Industrial Property Rights Type
      特許
    • Filing Date
      2020
    • Acquisition Date
      2021
    • Related Report
      2020 Annual Research Report
  • [Patent(Industrial Property Rights)] 土砂採取装置2019

    • Inventor(s)
      菅沼悠介,香月興太,田邊優貴子
    • Industrial Property Rights Holder
      菅沼悠介,香月興太,田邊優貴子
    • Industrial Property Rights Type
      特許
    • Filing Date
      2019
    • Related Report
      2019 Annual Research Report
  • [Patent(Industrial Property Rights)] 土砂採取装置2018

    • Inventor(s)
      菅沼悠介,香月興太,田邊優貴子
    • Industrial Property Rights Holder
      菅沼悠介,香月興太,田邊優貴子
    • Industrial Property Rights Type
      特許
    • Filing Date
      2018
    • Related Report
      2018 Annual Research Report

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Published: 2016-04-21   Modified: 2023-01-30  

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