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Sea-ice reduction in the Pacific Arctic during summer from the variability of sea-ice thickness during winter

Research Project

Project/Area Number 19H01961
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 17020:Atmospheric and hydrospheric sciences-related
Research InstitutionHokkaido University

Principal Investigator

FUKAMACHI Yasushi  北海道大学, 北極域研究センター, 教授 (20250508)

Co-Investigator(Kenkyū-buntansha) 大島 慶一郎  北海道大学, 低温科学研究所, 教授 (30185251)
二橋 創平  苫小牧工業高等専門学校, 創造工学科, 教授 (50396321)
伊東 素代  国立研究開発法人海洋研究開発機構, 地球環境部門(北極環境変動総合研究センター), 副主任研究員 (60373453)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2022: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2021: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2020: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2019: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Keywords海氷 / 北極海 / 海氷厚 / 係留観測 / 衛星観測
Outline of Research at the Start

北極海の太平洋側海域では夏季の海氷域の減少が近年になって特に顕著に見られているが、その要因は未だに良く解明されていない。その理由の一つは人工衛星データから正確に把握できる海氷の面積に較べて、その厚さの実態把握が不十分なことである。本研究ではこの海域における10 年以上の長期に渡る海氷・海洋の現場観測による海氷厚などのデータと衛星マイクロ波放射計データから見積られる海氷生産量のデータなどを用いて、海氷の力学過程(海氷同士の衝突と重なりによる氷厚の増加)と熱力学過程から決まる冬季の海氷厚分布の実態を明らかにし、それが夏季の海氷分布とどのように関係しているかを調べ、この海氷減少の要因を明らかにする。

Outline of Final Research Achievements

In the Pacific Arctic Ocean, where sea ice loss is most pronounced, sea ice thickness, sea ice drift, ocean current, water temperature, and salinity data were obtained from the mooring observations off Barrow for 12 consecutive years from 2009 to 2021. This long-term continuous data, combined with satellite sea ice data, can be used to elucidate the causes of rapid sea ice reduction in this area. These data can also show interannual variabilities of the coastal polynya off Barrow and year-to year variations in occurrence of frazil ice and zooplankton.

Academic Significance and Societal Importance of the Research Achievements

地球温暖化の影響が最も進んでいる海域において今までにない海氷・海洋データが取得できたことで、温暖化の影響評価と将来予測に資するデータを得ることができた。加えて、急速な気候変動期にアラスカ沿岸地域社会が求める科学的な基礎情報としても資するものである。

Report

(5 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (56 results)

All 2024 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (5 results) Journal Article (17 results) (of which Int'l Joint Research: 11 results,  Peer Reviewed: 16 results,  Open Access: 11 results) Presentation (32 results) (of which Int'l Joint Research: 8 results,  Invited: 3 results) Book (1 results) Remarks (1 results)

  • [Int'l Joint Research] University of Alaska Fairbanks/University of Washington(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] University of Alaska Fairbanks/University of Washington(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] University of Alaska Fairbanks(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] University of Alaska Fairbanks/University of Miami(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Chalmers University of Technology(スウェーデン)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Backward-tracking simulations of sea ice in the Sea of Okhotsk toward understanding of material transport through sea ice2023

    • Author(s)
      Kuga Mizuki、Ohshima Kay I.、Kishi Sachiko、Kimura Noriaki、Toyota Takenobu、Nishioka Jun
    • Journal Title

      Journal of Oceanography

      Volume: 80 Issue: 1 Pages: 59-70

    • DOI

      10.1007/s10872-023-00706-4

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Mapping Methodology Adapted to all Polar and Subpolar Oceans with a Stretching/Shrinking Constraint2023

    • Author(s)
      Mensah Vigan, Ohshima Kay I.
    • Journal Title

      Journal of Atmospheric and Oceanic Technology

      Volume: 40 Issue: 10 Pages: 1241-1261

    • DOI

      10.1175/jtech-d-22-0143.1

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Recent state transition of the Arctic Ocean's Beaufort Gyre2023

    • Author(s)
      Peigen Lin,Robert S. Pickart, Harry Heorton, Michel Tsamados, Motoyo Itoh, Takashi Kikuchi
    • Journal Title

      Nature Geoscience

      Volume: 16 Pages: 485-491

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Formation and circulation of newly ventilated winter water in the western Beaufort Sea2023

    • Author(s)
      Lin Peigen、Pickart Robert S.、Weingartner Thomas J.、Simmons Harper L.、Itoh Motoyo、Kikuchi Takashi
    • Journal Title

      Progress in Oceanography

      Volume: 216 Pages: 103068-103068

    • DOI

      10.1016/j.pocean.2023.103068

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Floating microplastic inventories in the southern Beaufort Sea, Arctic Ocean2023

    • Author(s)
      Ikenoue Takahito、Nakajima Ryota、Mishra Pravakar、Ramasamy Eswara Venkatesaperumal、Fujiwara Amane、Nishino Shigeto、Murata Akihiko、Watanabe Eiji、Itoh Motoyo
    • Journal Title

      Frontiers in Marine Science

      Volume: 10 Pages: 1288301-1288301

    • DOI

      10.3389/fmars.2023.1288301

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] An affordable and customizable wave buoy for the study of wave-ice interactions: design concept and results from field deployments2023

    • Author(s)
      Kodaira Tsubasa、Katsuno Tomotaka、Nose Takehiko、Itoh Motoyo、Rabault Jean、Hoppmann Mario、Kimizuka Masafumi、Waseda Takuji
    • Journal Title

      Coastal Engineering Journal

      Volume: 66 Issue: 1 Pages: 1-15

    • DOI

      10.1080/21664250.2023.2249243

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Atlantic-origin water extension into the Pacific Arctic induced an anomalous biogeochemical event2023

    • Author(s)
      Nishino Shigeto、Jung Jinyoung、Cho Kyoung-Ho、Williams William J.、Fujiwara Amane、Murata Akihiko、Itoh Motoyo、Watanabe Eiji、Aoyama Michio、Yamamoto-Kawai Michiyo、Kikuchi Takashi、Yang Eun Jin、Kang Sung-Ho
    • Journal Title

      Nature Communications

      Volume: 14 Issue: 1

    • DOI

      10.1038/s41467-023-41960-w

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Particle-tracking experiments of coastal-origin sea ice that could induce high biological productivity in the Sea of Okhotsk2022

    • Author(s)
      Kuga Mizuki、Ohshima Kay I.、Kimura Noriaki、Nakata Kazuki、Fukamachi Yasushi
    • Journal Title

      Journal of Oceanography

      Volume: 79 Issue: 2 Pages: 145-159

    • DOI

      10.1007/s10872-022-00670-5

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Oceanic conditions in the Barrow Coastal Polynya revealed by a 10-year mooring time series2022

    • Author(s)
      Hirano, D., Y. Fukamachi, K. I. Ohshima, M. Ito, T. Tamura, D. Simizu, T. Takatsuka, A. R. Mahoney, J. Jones, C. George, B. Adams, H. Eicken
    • Journal Title

      Progress in Oceanography

      Volume: 203 Pages: 102781-102781

    • DOI

      10.1016/j.pocean.2022.102781

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A neural network-based method for satellite-based mapping of sediment-laden sea ice in the Arctic2022

    • Author(s)
      Waga Hisatomo、Eicken Hajo、Light Bonnie、Fukamachi Yasushi
    • Journal Title

      Remote Sensing of Environment

      Volume: 270 Pages: 112861-112861

    • DOI

      10.1016/j.rse.2021.112861

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Variability in spring phytoplankton blooms associated with ice retreat timing in the Pacific Arctic from 2003-20192021

    • Author(s)
      Waga Hisatomo、Eicken Hajo、Hirawake Toru、Fukamachi Yasushi
    • Journal Title

      PLOS ONE

      Volume: 16 Issue: 12 Pages: 0261418-0261418

    • DOI

      10.1371/journal.pone.0261418

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Transport and heat loss of the Pacific Summer Water in the Arctic Chukchi Sea northern slope: Mooring data analysis2021

    • Author(s)
      Muramatsu Miaki、Ueno Hiromichi、Watanabe Eiji、Itoh Motoyo、Onodera Jonaotaro
    • Journal Title

      Polar Science

      Volume: 29 Pages: 100698-100698

    • DOI

      10.1016/j.polar.2021.100698

    • Related Report
      2021 Annual Research Report
    • Open Access
  • [Journal Article] Status and trends of Arctic Ocean environmental change and its impacts on marine biogeochemistry: Findings from the ArCS project2021

    • Author(s)
      Kikuchi Takashi、Nishino Shigeto、Fujiwara Amane、Onodera Jonaotaro、Yamamoto-Kawai Michiyo、Mizobata Kohei、Fukamachi Yasushi、Watanabe Eiji
    • Journal Title

      Polar Science

      Volume: 27 Pages: 100639-100639

    • DOI

      10.1016/j.polar.2021.100639

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Rapidly changing glaciers, ocean and coastal environments, and their impact on human society in the Qaanaaq region, northwestern Greenland2021

    • Author(s)
      Sugiyama Shin、Kanna Naoya、Sakakibara Daiki、Ando Takuto、Asaji Izumi、Kondo Ken、Wang Yefan、Fujishi Yoshiki、Fukumoto Shungo、Fukamachi Yasushi、Takahashi Minori、Matoba Sumito、Iizuka Yoshinori、Greve Ralf、Furuya Masato、Tateyama Kazutaka、Watanabe Tatsuya、Yamasaki Shintaro、Yamaguchi Atsushi、Nishizawa Bungo他
    • Journal Title

      Polar Science

      Volume: 27 Pages: 100632-100632

    • DOI

      10.1016/j.polar.2020.100632

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Favorable Conditions for Suspension Freezing in an Arctic Coastal Polynya2019

    • Author(s)
      Ito M., Ohshima K. I., Fukamachi Y., Hirano D., Mahoney A. R., Jones J., Takatsuka T. Eicken H.
    • Journal Title

      Journal of Geophysical Research

      Volume: 124 Issue: 12 Pages: 8701-8719

    • DOI

      10.1029/2019jc015536

    • NAID

      120006847777

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Instantaneous sea ice drift speed from TanDEM-X interferometry2019

    • Author(s)
      Dammann, D. O., L. E. B. Eriksson, J. M. Jones, A. R. Mahoney, R. Rosmeiser, F. J. Meyer, H. Eicken, and Y. Fukamachi
    • Journal Title

      The Cryosphere

      Volume: 13 Issue: 4 Pages: 1395-1408

    • DOI

      10.5194/tc-13-1395-2019

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Evaluation of AMSR-E Thin Ice Thickness Algorithm from a Mooring-Based Observation: How Can the Satellite Observe a Sea Ice Field with Nonuniform Thickness Distribution?2019

    • Author(s)
      Kashiwase H., Ohshima K. I., Fukamachi Y., Nihashi S., Tamura T.
    • Journal Title

      Journal of Atmospheric and Oceanic Technology

      Volume: 36 Issue: 8 Pages: 1623-1641

    • DOI

      10.1175/jtech-d-18-0218.1

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Increased heat transport through Barrow Canyon and its impact on subsurface warming in the western Arctic Ocean2024

    • Author(s)
      Motoyo Itoh , Shigeto Nishino and Takashi Kikuchi
    • Organizer
      2024 Ocean Sciences Meeting
    • Related Report
      2022 Annual Research Report
  • [Presentation] Atlantic-origin water extension into the Pacific Arctic induced an anomalous biogeochemical event2024

    • Author(s)
      Shigeto Nishino, Jinyoung Jung, Kyoung-Ho Cho, William Williams, Amane Fujiwara, Akihiko Murata, Motoyo Itoh, Eiji Watanabe, Michiyo Yamamoto-Kawai, Takashi Kikuchi, Eun Jin Yang, Sung-Ho Kang
    • Organizer
      2024 Ocean Sciences Meeting
    • Related Report
      2022 Annual Research Report
  • [Presentation] Dissolved Al on the Chukchi Shelf and the shelf slopes in the Canada Basin during the RV Mirai cruises2024

    • Author(s)
      Mariko Hatta,Chris I Measures, Maxime Grand,Amane Fujiwara, Motoyo Itoh
    • Organizer
      Ocean Sciences Meeting
    • Related Report
      2022 Annual Research Report
  • [Presentation] 宗谷暖流域におけるADCP後方散乱強度解析:堆積物の巻き上がりと動物プランクトンの日周鉛直移動2023

    • Author(s)
      久賀みづき・大島慶一郎・深町康・伊藤優人・西岡純
    • Organizer
      日本海洋学会2023年度秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Trends in sea ice melt in the Baffin Bay and Labrador Sea estimated from ocean observations2023

    • Author(s)
      Mensah, V., M. Ikeda, M. Komatsu, K. I. Ohshima
    • Organizer
      International Symposium on Sea Ice across Spatial and Temporal Scale
    • Related Report
      2022 Annual Research Report
  • [Presentation] A decreasing trend in Bering Sea ice melt revealed by a century-long T-S-based estimate2023

    • Author(s)
      Mensah, V., Y-C. Chen, K. I. Ohshima
    • Organizer
      International Symposium on Sea Ice across Spatial and Temporal Scale
    • Related Report
      2022 Annual Research Report
  • [Presentation] A mapping methodology adapted to all polar and subpolar oceans with a stretching/shrinking constraint2023

    • Author(s)
      Mensah, V., K. I. Ohshima
    • Organizer
      日本海洋学会2023年度秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Estimation of ice melt, freshwater budget and their multi-decadal trends in the Baffin Bay and Labrador Sea2023

    • Author(s)
      Mensah, V., K. Fujita, M. Ikeda, M. Komatsu, K. I. Ohshima
    • Organizer
      日本海洋学会2023年度秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Century-long T-S-based estimate of sea ice melt in the Pacific Arctic Region2023

    • Author(s)
      Mensah, V., Y-C. Chen, K. I. Ohshima
    • Organizer
      Japan Geophysical Union Meeting 2023
    • Related Report
      2022 Annual Research Report
  • [Presentation] Multidecadal trends of sea ice melt in the Labrador Sea/Baffin Bay revealed by T-S observations2023

    • Author(s)
      Mensah, V., M. Ikeda, M. Komatsu, K. I. Ohshima
    • Organizer
      Japan Geophysical Union Meeting 2023
    • Related Report
      2022 Annual Research Report
  • [Presentation] Beaufort Gyre shrinkage and Atlantification induced an anomalous biogeochamical event in the western Arctic Ocean2023

    • Author(s)
      Shigeto Nishino, Jinyoung Jung, Kyoung-Ho Cho, William Williams, Amane Fujiwara, Akihiko Murata, Motoyo Itoh, Eiji Watanabe, Michio Aoyama, Michiyo Yamamoto-Kawai, Takashi Kikuchi, Eun Jin Yang, Sung-Ho Kang
    • Organizer
      Siberian DBO Workshop, International Symposium on Polar Science 2023 (ISPS 2023)
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] チュクチ海北方域における太平洋夏季水の輸送に伴う亜表層貯熱量の増加過程2023

    • Author(s)
      村松 美幌,上野 洋路,渡邉 英嗣,伊東 素代,小野寺 丈尚太郎,溝端 浩平
    • Organizer
      日本地球惑星科学連合大会 (JpGU)
    • Related Report
      2022 Annual Research Report
  • [Presentation] SAS-Mirai 2020-2022 cruises in the western Arctic Ocean (Cruises Review by Chief Scientists)2023

    • Author(s)
      Shigeto Nishino, Amane Fujiwara, Motoyo Itoh
    • Organizer
      International SAS Synthesis Workshop
    • Related Report
      2022 Annual Research Report
  • [Presentation] Beaufort Gyre shrinkage and Atlantification induced an anomalous biogeochamical event in the western Arctic Ocean2023

    • Author(s)
      Shigeto Nishino, Jinyoung Jung, Kyoung-Ho Cho, William Williams, Amane Fujiwara, Akihiko Murata, Motoyo Itoh, Eiji Watanabe, Michio Aoyama, Michiyo Yamamoto-Kawai, Takashi Kikuchi, Eun Jin Yang, Sung-Ho Kang
    • Organizer
      International SAS Synthesis Workshop
    • Related Report
      2022 Annual Research Report
  • [Presentation] Decadal condition changes in material transportation in the southwestern Canada Basin, 2010-20212023

    • Author(s)
      Jonaotaro Onodera, Eiji Watanabe, Kohei Mizobata, Miaki Muramatsu, Motoyo Itoh, Katsunori Kimoto, Yuichiro Tanaka, Eun-Jin Yang, Naomi Harada, Takashi Kikuchi
    • Organizer
      Ecosystem Studies of Subarctic and Arctic Seas (ESSAS) 2023 Annual Science Meeting
    • Related Report
      2022 Annual Research Report
  • [Presentation] 北極海太平洋側への大西洋起源水の貫入に起因する低酸素化・酸性化2023

    • Author(s)
      西野茂人、Jinyoung Jung、Kyoung-Ho Cho、William J. Williams、藤原周、村田昌彦、伊東素代、 渡邉英嗣、川合美千代、菊地隆、Eun Jin Yang、Sung-Ho Kang
    • Organizer
      日本海洋学会2023年度秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Increased heat transport through Barrow Canyon and its impact on subsurface warming in the western Arctic Ocean2023

    • Author(s)
      Motoyo Itoh , Shigeto Nishino and Takashi Kikuchi
    • Organizer
      Pacific Arctic Group (PAG) 2023 Fall Meeting
    • Related Report
      2022 Annual Research Report
  • [Presentation] Atlantic-origin water extension into the Pacific Arctic induced an anomalous biogeochemical event2023

    • Author(s)
      Shigeto Nishino, Jinyoung Jung, Kyoung-Ho Cho, William Williams, Amane Fujiwara, Akihiko Murata, Motoyo Itoh, Eiji Watanabe, Michio Aoyama, Michiyo Yamamoto-Kawai, Takashi Kikuchi, Eun Jin Yang, Sung-Ho Kang
    • Organizer
      Pacific Arctic Group (PAG) 2023 Fall Meeting
    • Related Report
      2022 Annual Research Report
  • [Presentation] Atlantic-origin water extension into the Pacific Arctic induced an anomalous biogeochemical event2023

    • Author(s)
      Shigeto Nishino, Jinyoung Jung, Kyoung-Ho Cho, William Williams, Amane Fujiwara, Akihiko Murata, Motoyo Itoh, Eiji Watanabe, Michiyo Yamamoto-Kawai, Takashi Kikuchi, Eun Jin Yang, Sung-Ho Kang
    • Organizer
      K-INET International Symposium 2023, Environmental Issues in a Post-Covid 19 Society
    • Related Report
      2022 Annual Research Report
  • [Presentation] 北極海バロー海底谷における表層混合層の時系列観測2023

    • Author(s)
      伊東素代
    • Organizer
      日本海洋学会2023年度秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Decadal changes in material transportation in the southwestern Canada Basin, 2010-20222023

    • Author(s)
      Jonodera Onodera, Eiji Watanabe, Kohei Mizobata, Miaki Muramatsu, Motoyo Itoh, Yuichiro Tanaka, Eun Jin Yang, Naomi Harada, and Takashi Kikuchi
    • Organizer
      PAG (Pacific Arctic Group) Fall Meeting 2023
    • Related Report
      2022 Annual Research Report
  • [Presentation] Seasonal variations of sea-ice thickness in the Northwind Abyssal Plain of the Arctic Ocean: Data analysis of moored ice-profiling sonar2023

    • Author(s)
      Ueno, T., H. Ueno, M. Itoh, E. Watanabe, J. Onodera, Y. Kawaguchi, S. Fujio, E. Moriya, Y. Fukamachi, and N. Harada
    • Organizer
      Seventh International Symposium on Arctic Research
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 北極海ノースウィンド深海平原における海氷厚の季節変動2022

    • Author(s)
      上野威,上野洋路,伊東素代,渡邉英嗣,小野寺丈尚太郎,川口悠介,藤尾伸三,守家衣利加,深町康
    • Organizer
      2022年度日本海洋学会秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Mapping of active frazil for coastal polynyas in the Northern Hemisphere, with estimation of sea-ice production2021

    • Author(s)
      Nakata, K., and K. I. Ohshima
    • Organizer
      JpGU Meeting 2021
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Global mapping of sea-ice production and active-frazil area in coastal polynyas using a unified AMSR algorithm2021

    • Author(s)
      Nakata, K., and K. I. Ohshima
    • Organizer
      AGU Fall Meeting 2021
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Long term variability of Barrow Canyon fluxes and its impact on subsurface warming in the western Arctic Ocean2021

    • Author(s)
      Itoh, M., T. Kikuchi, and S. Nishino
    • Organizer
      Arctic Science Summit Week
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Iron and nutrients supply to a fjord from glacier-induced pumping in northwestern Greenland2020

    • Author(s)
      Kanna, N., S. Sugiyama, Y. Fukamachi, D. Nomura and J. Nishioka
    • Organizer
      The 11th Symposium on Polar Science
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 北極海バロー海底谷を通過する夏季太平洋水の昇温2020

    • Author(s)
      伊東素代,菊地隆,西野茂人
    • Organizer
      2020年度日本海洋学会秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Mooring measurement of sea ice and ocean in the northeastern coastal Chukchi Sea, Chozen International Symposium on Transboundary Pollution at North-South Transect at Marginal Sea in western Pacific Ocean2019

    • Author(s)
      Fukamachi, Y.
    • Organizer
      Joint International Symposium on Sustainable Development and Environmental issues
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Year-round observations of sea-ice drift and near-inertial internal waves in the Northwind Abyssal Plain, Arctic Ocean2019

    • Author(s)
      Kawaguchi, Y., M. Itoh, Y. Fukamachi, E. Moriya, J. Onodera, T. Kikuchi, and N. Harada
    • Organizer
      The Tenth Symposium on Polar Science
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] サハリン沖係留観測に基づく高精度なAMSR-E薄氷厚アルゴリズムの開発2019

    • Author(s)
      柏瀬陽彦, 大島慶一郎,深町康, 二橋創平, 田村岳史
    • Organizer
      海洋学会秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Interactions between sea-ice drift and near-inertial internal waves in the Northwind Abyssal Plain, Arctic Ocean: year-round mooring observations2019

    • Author(s)
      Kawaguchi, Y., M. Itoh, Y. Fukamachi, J. Onodera, E. Moriya, T. Kikuchi, and N. Harada
    • Organizer
      EGU General Assembly 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Book] 北極域の研究―その現状と将来構想― ・太平洋水の熱・流量フラックスの変化2024

    • Author(s)
      motoyo Itoh
    • Total Pages
      480
    • Publisher
      海文堂出版
    • ISBN
      9784303562304
    • Related Report
      2022 Annual Research Report
  • [Remarks] 外部資金

    • URL

      http://wwwoa.ees.hokudai.ac.jp/~yasuf/ext_fund.html

    • Related Report
      2019 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2025-01-30  

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