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Study of sea-ice and oceanic variability off the northern Alaskan coast

Research Project

Project/Area Number 15H03721
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Meteorology/Physical oceanography/Hydrology
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)
伊東 素代  国立研究開発法人海洋研究開発機構, 北極環境変動総合研究センター, 技術研究員 (60373453)
Research Collaborator Pnyushkov Andrey  
Hirano Daisuke  
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2018: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2017: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2016: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Keywords北極海 / 海氷 / 係留観測 / 現場観測
Outline of Final Research Achievements

Time-series data of sea-ice thickness have been accumulated for eight years by the mooring observation conducted in the coastal region off northern Alaska. We revealed that large yearly variability in ice thickness is caused by variability in sea-ice drift pattern associated with local winds.

Based on time-series oceanic data, we showed that the generation and maintenance of the coastal polynya in this region are governed by not only offshore sea-ice drift but upwelled warm subsurface water, and winter water formed in this region is influenced by not only Pacific-origin water but also Atlantic-origin water.

Academic Significance and Societal Importance of the Research Achievements

海氷の面積や拡がりは人工衛星によって正確に観測できるが、厚さについては衛星によって十分な精度と頻度で観測するのはまだ困難なのが現状である。北極海全体などの大きなスケールで海氷厚の実態を把握するには、衛星観測が不可欠であるが、その精度を向上させるためには、現場における検証データを取得することが重要である。本研究では、まだまだ不足している海氷厚のデータを継続的に取得している点に意義があり、その成果は将来的な航路利用などにも資するものであると言える。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • Research Products

    (75 results)

All 2019 2018 2017 2016 2015 Other

All Int'l Joint Research (4 results) Journal Article (18 results) (of which Int'l Joint Research: 12 results,  Peer Reviewed: 16 results,  Open Access: 8 results,  Acknowledgement Compliant: 4 results) Presentation (51 results) (of which Int'l Joint Research: 35 results,  Invited: 3 results) Remarks (2 results)

  • [Int'l Joint Research] アラスカ大学フェアバンクス校(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] アラスカ大学フェアバンクス校(米国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] アラスカ大学フェアバンクス校(米国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] アラスカ大学フェアバンクス校(米国)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Study on Oil Spill Response Technology in Cold Water Condition - Lessons Learned from Exxon Valdes and Deepwater Horizon2019

    • Author(s)
      Nakazawa, N., H. Yamaguchi, A. Kurokawa, J. Ono, T. Terashima, G. Sagawa, S. Yano, Y. Fukamachi, and K. I. Ohshima
    • Journal Title

      Proceedings of the 34th International Symposium on the Okhotsk Sea & Polar Oceans 2019

      Volume: - Pages: 190-192

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Estimation of Thin-Ice Thickness and Discrimination of Ice Type From AMSR-E Passive Microwave Data2019

    • Author(s)
      Nakata Kazuki、Ohshima Kay I.、Nihashi Sohey
    • Journal Title

      IEEE Transactions on Geoscience and Remote Sensing

      Volume: 57 Issue: 1 Pages: 263-276

    • DOI

      10.1109/tgrs.2018.2853590

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Seasonal to mesoscale variability of water masses and atmospheric conditions rn Barrow Canyon, Chukchi Sea2019

    • Author(s)
      Pickart, R. S., C. Nobre, P. Lin, K. R. Arrigo, C. J. Ashjian, C. Berchok, L. W. Cooper, J. M. Grebmeier, I. Hartwell, J. He, M. Itoh, T. Kikuchi, S. Nishino, and S. Vagle
    • Journal Title

      Deep-Sea Research Part II: Topical Studies in Oceanography

      Volume: 印刷中

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Year-round observations of sea-ice drift and near-inertial internal waves in the Northwind Abyssal Plain, Arctic Ocean2018

    • Author(s)
      Kawaguchi, Y., M. Itoh, Y. Fukamachi, E. Moriya, J. Onodera, T. Kikuchi and N. Harada
    • Journal Title

      Polar Science

      Volume: in press Pages: 1-9

    • DOI

      10.1016/j.polar.2019.01.004

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Upwelling of macronutrients and dissolved inorganic carbon by a subglacial freshwater driven plume in Bowdoin Fjord, northwestern Greenland2018

    • Author(s)
      Kanna, N., S. Sugiyama, Y. Ohashi, D. Sakakibara, Y. Fukamachi and D. Nomura
    • Journal Title

      Journal of Geophysical Research Biogeosciences

      Volume: 123 Issue: 5 Pages: 1666-1682

    • DOI

      10.1029/2017jg004248

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Winter water formation in coastal polynyas of the eastern Chukchi shelf: Pacific and Atlantic influences2018

    • Author(s)
      Hirano, D., Y. Fukamachi, K. I. Ohshima, E. Watanabe, A. R. Mahoney, H. Eicken, M. Itoh, D. Simizu, K. Iwamoto, J. Jones, T. Takatsuka, T. Kikuchi, and T. Tamura
    • Journal Title

      Journal of Geophysical Research

      Volume: 123 Issue: 8 Pages: 5688-5705

    • DOI

      10.1029/2017jc013307

    • NAID

      120006559016

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] CO2 flux over young and snow-covered Arctic pack ice in winter and spring.2018

    • Author(s)
      Nomura, D., M. A. Granskog, A. Fransson, M. Chierici, A. Silyakova, K. I. Ohshima, L. Cohen, B. Delille, S. R. Hudson, and G. S. Dieckmann
    • Journal Title

      Biogeosciences

      Volume: 15 Issue: 11 Pages: 3331-3343

    • DOI

      10.5194/bg-15-3331-2018

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Studies on the variability of sea ice and its effects on ocean circulation2018

    • Author(s)
      大島 慶一郎
    • Journal Title

      Oceanography in Japan

      Volume: 27 Issue: 2 Pages: 75-96

    • DOI

      10.5928/kaiyou.27.2_75

    • NAID

      130006549589

    • ISSN
      0916-8362, 2186-3105
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Interannual variation in solar heating in the Chukchi Sea, Arctic Ocean2018

    • Author(s)
      Tsukada, Y., H. Ueno, N. Ohta, M. Itoh, E. Watanabe, T. Kikuchi, S. Nishino, and K. Mizobata
    • Journal Title

      Polar Science

      Volume: 17 Pages: 33-39

    • DOI

      10.1016/j.polar.2018.06.003

    • NAID

      120006882067

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Transport of Pacific Water into the Canada Basin and the formation of the Chukchi Slope Current2018

    • Author(s)
      Spall, M. A., R. S. Pickart, M. Li, M. Itoh, P. Lin, T. Kikuchi, and Y. Qi
    • Journal Title

      Journal of Geophysical Research

      Volume: 123(10) Issue: 10 Pages: 7453-7471

    • DOI

      10.1029/2018jc013825

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Sea-ice thickness in the coastal northeastern Chukchi Sea from moored ice-profiling sonar2017

    • Author(s)
      FUKAMACHI YASUSHI、SIMIZU DAISUKE、OHSHIMA KAY I.、EICKEN HAJO、MAHONEY ANDREW R.、IWAMOTO KATSUSHI、MORIYA ERIKA、NIHASHI SOHEY
    • Journal Title

      Journal of Glaciology

      Volume: 63 Issue: 241 Pages: 888-898

    • DOI

      10.1017/jog.2017.56

    • NAID

      120006382308

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Variability of sea-ice thickness in the northeastern coastal Chukchi Sea revealed by a moored ice-profiling sonar2017

    • Author(s)
      Fukamachi Y., D. Simizu, K. I. Ohshima, H. Eicken, A. R. Mahoney, K. Iwamoto, E. Moriya, S. Nihashi
    • Journal Title

      Proceedings of the 32nd International Symposium on Okhotsk Sea & Polar Oceans

      Volume: ― Pages: 91-92

    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] Surface water mass composition changes captured by cores of Arctic land-fast sea ice2016

    • Author(s)
      Smith, I. J., H. Eicken, A. R. Mahoney, R. Van Hale, A. J. Gough, Y. Fukamachi, J. Jones
    • Journal Title

      Continental Shelf Research

      Volume: 118 Pages: 154-164

    • DOI

      10.1016/j.csr.2016.02.008

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Landfast sea ice breakouts: Stabilizing ice features, oceanic and atmospheric forcing at Barrow, Alaska2016

    • Author(s)
      Jones, J., H. Eicken, A. Mahoney, Rohith MV, C. Kambhamettu, Y. Fukamachi, K. I. Ohshima, J. C. George
    • Journal Title

      Continental Shelf Research

      Volume: 126 Pages: 50-63

    • DOI

      10.1016/j.csr.2016.07.015

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A wind-driven, hybrid latent and sensible heat coastal polynya off Barrow, Alaska2016

    • Author(s)
      Hirano, D., Y. Fukamachi, E. Watanabe, K. I. Ohshima, K. Iwamoto, A. Mahoney, H. Eicken, D. Shimizu, and T. Tamura
    • Journal Title

      Journal of Geophysical Research

      Volume: 121 Issue: 1 Pages: 980-997

    • DOI

      10.1002/2015jc011318

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Water properties, heat and volume fluxes of Pacific water in Barrow Canyon during summer 20102015

    • Author(s)
      Itoh, M., R. S. Pickart, T. Kikuchi, Y. Fukamachi, K. I. Ohshima, D. Simizu, K. R. Arrigo, S. Vagle, J. Heg, C. Ashjian, J. T. Mathis, S. Nishino, and C. Nobre
    • Journal Title

      Deep-Sea Research I

      Volume: 102 Pages: 43-54

    • DOI

      10.1016/j.dsr.2015.04.004

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Taking a look at both sides of the ice: comparison of ice thickness and drift speed as observed from moored, airborne and shore-based instruments near Barrow, Alaska2015

    • Author(s)
      Mahoney, A. R., H. Eicken, Y. Fukamachi, K. I. Ohshima, D. Simizu, C. Kambhamettu, R. MV, S. Hendricks, and J. Jones
    • Journal Title

      Annals of Glaciology

      Volume: 56 Issue: 69 Pages: 363-372

    • DOI

      10.3189/2015aog69a565

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Observations of supercooled water and frazil ice formation in an Arctic coastal polynya form moorings and satellite imagery2015

    • Author(s)
      Ito, M., K. I. Ohshima, Y. Fukamachi, K. I. D. Simizu, K. Iwamoto, Y. Matsumura, A. R. Mahoney, and H. Eicken
    • Journal Title

      Annals of Glaciology

      Volume: 56 Pages: 307-314

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] 2017年「みらい」北極航海概要と観測結果の報告2019

    • Author(s)
      西野茂人,藤原周,川口悠介,菊地隆,伊東素代
    • Organizer
      ブルーアースサイエンス・テク2019
    • Related Report
      2018 Annual Research Report
  • [Presentation] On the warming of the Chukchi slope through the Barrow Canyon outflow in the winter of 2016-172019

    • Author(s)
      Kimura, S., J. Onodera, M. Itoh, T. Kikuchi, and S.Nishino
    • Organizer
      Polar Marine Science (GRS) Gordon Research Seminar
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] An evidence of a subglacial freshwater discharge into a fjord at the boundary of Bowdoin Glacier, northwestern Greenland2018

    • Author(s)
      Kanna, N., S. Sugiyama, D. Sakakibara, Y. Fukamachi, D. Nomura, S. Fukumoto, and E. Podolskiy
    • Organizer
      JpGU Meeting 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of glacial meltwater discharge on surface water pCO2 and air-sea CO2 flux in Bowdoin Fjord in northwestern Greenland2018

    • Author(s)
      Nomura, D., N. Kanna, S. Yunoki, D. Sakakibara, Y. Fukamachi, T. Hirawake and S. Sugiyama
    • Organizer
      Polar 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] グリーンランド北西部ボードウィンフィヨルドにおける海洋観測2018

    • Author(s)
      藤支良貴,杉山慎,漢那直也,深町康
    • Organizer
      雪氷研究大会(2018・札幌)
    • Related Report
      2018 Annual Research Report
  • [Presentation] グリーンランド北西部におけるカービング氷河前縁フィヨルドの海水特性2018

    • Author(s)
      漢那直也,杉山慎,榊原大貴,深町康,野村大樹
    • Organizer
      2018年度日本海洋学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Bio-related material cycle in a coastal polynya observed with moored acoustic and optical instruments in the northeastern Chukchi Sea2018

    • Author(s)
      Ito, M., K. I. Ohshima, Y. Fukamachi, H. Eicken, A. R. Mahoney, J. Jones, and T. Takatsuka
    • Organizer
      The 9th Symposium on Polar Science
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] チャクチ海ポリニヤ域における音響・光学測器による物質循環過程の観測2018

    • Author(s)
      伊藤優人,大島慶一郎,深町康,Hajo Eicken,Andrew R. Mahoney,Joshua Jones
    • Organizer
      2018年度日本海洋学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 未知(第4)の南極底層水生成域の発見. 「日本学術会議公開シンポジウム 海洋観測における研究船の役割:成果と展望」2018

    • Author(s)
      大島慶一郎
    • Organizer
      日本学術会議地球惑星科学委員会SCOR分科会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Mooring measurement of sea ice and ocean in the northeastern coastal Chukchi Sea from 20092018

    • Author(s)
      Fukamachi, Y.
    • Organizer
      Japan-U.S. Arctic Science Collaboration “Reflections on the Past Two Decades and Future Opportunities”
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 2017年「みらい」北極航海概要/Summary of the R/V Mirai Arctic Ocean cruise in 20172018

    • Author(s)
      西野茂人, 藤原周,川口悠介,菊地隆,伊東素代
    • Organizer
      JpGU Meeting 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Lateral advection of biogenic particles in the southwestern Canada Basin, Arctic Ocean2018

    • Author(s)
      Onodera, J., E. Watanabe, K. Mizobata, Y. Tanaka, M. Itoh, and N. Harada
    • Organizer
      JpGU Meeting 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] チャクチ海北東部陸棚縁辺部における太平洋起源水の移流2018

    • Author(s)
      村松 芙幌, 上野 洋路, 伊東 素代, 渡遜 英嗣, 小野寺 丈尚太郎
    • Organizer
      2018年度日本海洋学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] On the warming of the Chukchi slope through the Barrow Canyon outflow in the winter of 2016-172018

    • Author(s)
      Kimura, S., J. Onodera, M. Itoh, T. Kikuchi, and S. Nishino
    • Organizer
      Forum for Arctic Modelling and Observational Synthesis 2018 Annual Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Continuous Sea-ice Thickness Measurement in the Northeastern Coastal Chukchi Sea from 20092018

    • Author(s)
      Y. Fukamachi, K. I. Ohshima, A. R. Mahoney, H. Eicken, D. Simizu, K. Iwamoto, E. Moriya, T. Takatsuka, and J. Jones
    • Organizer
      Fifth International Symposium on Arctic Research (ISAR-5)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sea-ice thickness from moored ice-profiling sonar in the Canada Basin, Arctic Ocean2018

    • Author(s)
      Motoyo Itoh, Yasushi Fukamachi, Noriaki Kimura, Richard A. Krishfield, Takashi Kikuchi, Erika Moriya, Jonaotaro Onodera, and Naomi Harada,
    • Organizer
      Fifth International Symposium on Arctic Research (ISAR-5)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Satellite observation of the thickening of sea ice through the ice deformation2018

    • Author(s)
      Noriaki Kimura, Hiroyasu Hasumi, Motoyo Itoh, Yasushi Fukamachi, Takashi Kikuchi, and Erika Moriya
    • Organizer
      Fifth International Symposium on Arctic Research (ISAR-5)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Seasonal variability of near-inertial internal waves in the Northwind Abyssal Plain, Arctic Ocean2018

    • Author(s)
      Y. Kawaguchi, M. Itoh, Y. Fukamachi, E. Moriya, N. Onodera, and T. Kikuchi
    • Organizer
      Fifth International Symposium on Arctic Research (ISAR-5)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Alaska coastal sea ice in the new millennium: Findings from the Seasonal Ice Zone Observing Network and implications for sustained autonomous observations of a rapidly changing Arctic2018

    • Author(s)
      Hajo Eicken, Andrew R. Mahoney, Olivia A. Lee, Mark A. Johnson, Joshua Jones, Yasushi Fukamachi, Kay I. Ohshima, and Graig George
    • Organizer
      2018 Ocean Sciences Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Global View of Sea Ice Production in Polynyas and Its Linkage to Dense/Bottom Water Formation, Material Cycle and Biological Production2017

    • Author(s)
      Ohshima, K. I.
    • Organizer
      Gordon Research Conference on Polar Marine Sciences
    • Place of Presentation
      Ventura (USA)
    • Year and Date
      2017-03-27
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 北極海の海氷消失が及ぼす北極海の乱流化について -ノースウインド深海平原における係留系データの解析-2017

    • Author(s)
      川口悠介, 伊東素代, 菊地隆, 小野寺丈尚太郎, 原田尚美, 深町康, 守家衣利加
    • Organizer
      ブルーアース2017
    • Place of Presentation
      日本大学理工学部(東京都千代田区)
    • Year and Date
      2017-03-02
    • Related Report
      2016 Annual Research Report
  • [Presentation] Variability of sea-ice thickness in the northeastern coastal Chukchi Sea revealed by a moored ice-profiling sonar2017

    • Author(s)
      Y. Fukamachi, D, Simizu, K. I. Ohshima, H. Eicken, A. R. Mahoney, K. Iwamoto, E. Moriya, S. Nihashi
    • Organizer
      The 32nd International Symposium on the Okhotsk Sea & Polar Oceans
    • Place of Presentation
      Mombetsu Arts & Culture Center (Monbetsu, Hokkaido)
    • Year and Date
      2017-02-21
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Variability of sea-ice thickness in the northeastern coastal Chukchi Sea revealed by a moored ice-profiling sonar2017

    • Author(s)
      Y. Fukamachi
    • Organizer
      Workshop on Sea Ice Remote Sensing and Modeling
    • Place of Presentation
      Sanjo Conference Hall, The University of Tokyo (Bunkyo-ku, Tokyo)
    • Year and Date
      2017-01-23
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Interannual variabilities of Pacific Water inflow into the Arctic basin via Barrow Canyon2017

    • Author(s)
      Motoyo Itoh, Takashi Kikuchi, Shigeto Nishino
    • Organizer
      Alaska Marine Science Symposium
    • Place of Presentation
      Anchorage (USA)
    • Year and Date
      2017-01-04
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Variability of sea-ice thickness in the northeastern coastal Chukchi Sea revealed by a moored ice-profiling sonar2017

    • Author(s)
      Fukamachi Yasushi, Simizu Daisuke, Ohshima Kay, Eicken Hajo, Mahoney Andrew, Iwamoto Katsushi, Moriya Erika, and Nihashi Sohey
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Seasonal variability of near-inertial internal waves and its kinetic energy in the ice-diminishing Arctic Ocean2017

    • Author(s)
      Yusuke Kawaguchi, Motoyo Itoh, Takashi Kikuchi, Jonaotaro Onodera, Naomi Harada, Yasushi Fukamachi, and Erika Moriya
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 係留観測による北極海カナダ海盆の海氷厚の季節変動2017

    • Author(s)
      伊東素代,深町康,木村詞明,R.A. Krishfield,菊地隆,守家衣利加,小野寺丈尚太郎,原田尚美
    • Organizer
      日本海洋学会2017年度秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Sea-ice thickness from moored ice-profiling sonar in the Canada Basin, Arctic Ocean2017

    • Author(s)
      Kikuchi Takashi, Itoh Motoyo, Fukamachi Yasushi, Kimura Noriaki, Krishfield Richard A., Moriya Erika, Onodera Jonaotaro, and Harada Naomi
    • Organizer
      Arctic Change 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Landfast Sea Ice Breakouts: Stabilizing Ice Features, Oceanic and Atmospheric Forcing at Barrow, Alaska2016

    • Author(s)
      J. Jones, H. Eicken, A. R. Manoney, R. MV, C. Kambhamettu, Y. Fukamachi, K. I. Ohshima, C. George
    • Organizer
      2016 AGU Fall Meeting
    • Place of Presentation
      San Francisco (USA)
    • Year and Date
      2016-12-15
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The observation of underwater frazil ice formation and upward sediment transport in an Arctic polynya in the Chukchi Sea2016

    • Author(s)
      M. Ito, K. I. Ohshima, Y. Fukamachi, D. Simizu and A. R. Mahoney, H. Eicken
    • Organizer
      2016 AGU Fall Meeting
    • Place of Presentation
      San Francisco (USA)
    • Year and Date
      2016-12-13
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Wind-driven variability in subsurface warm layers of the Chukchi shelf break2016

    • Author(s)
      Watanabe, E., J. Onodera, M. Itoh, S. Nishino, and T. Kikuchi
    • Organizer
      ArcticNet Annual Science Meeting
    • Place of Presentation
      Manitoba (Canada)
    • Year and Date
      2016-12-07
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Interannual variabilties of fluxes in Barrow Canyon from 2010-2014 : results from the DBO-5 repeat section2016

    • Author(s)
      Motoyo Itoh, Takashi Kikuchi, Yasushi Fukamachi, Robert Pickart and collaborators
    • Organizer
      2016 PAG Fall Meeting
    • Place of Presentation
      Qingdao (China)
    • Year and Date
      2016-10-26
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 北極海チャクチ陸棚縁における冬季海氷下の亜表層暖水輸送2016

    • Author(s)
      渡邉英嗣, 小野寺丈尚太郎, 伊東素代, 西野茂人, 菊地隆
    • Organizer
      日本海洋学会2016年度秋季大会
    • Place of Presentation
      鹿児島大学郡元キャンパス(鹿児島県鹿児島市)
    • Year and Date
      2016-09-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] Sea ice as a record of freshwater fluxes: a comparison of isotopic composition near an Antarctic ice shelf and off the Alaskan coast2016

    • Author(s)
      Inga J. Smith, Alexander J. Gough, Patricia J. Langhorne, Hajo Eicken, Andrew R. Mahoney, Gregory H. Leonard, Robert Van Hale, Yasushi Fukamachi, Stefan Jendersie, Joshua Jones, Timothy G. Haskell
    • Organizer
      IGS International Symposium on Interactions of Ice Sheets and Glaciers with the Ocean
    • Place of Presentation
      La Jolla (USA)
    • Year and Date
      2016-07-12
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Interannual variability of sea ice production in the Barrow Coastal Polynya off Barrow, Alaska2016

    • Author(s)
      Daisuke Hirano, Yasushi Fukamachi, Eiji Watanabe, Katsushi Iwamoto, Kay I. Ohshima, Takeshi Tamura
    • Organizer
      Japan Geoscience Union Meeting 2016
    • Place of Presentation
      Makuhari Messe (Chiba-city, Chiba)
    • Year and Date
      2016-05-26
    • Related Report
      2016 Annual Research Report
  • [Presentation] 西部北極海における厳冬期の亜表層暖水輸送2016

    • Author(s)
      渡邉英嗣, 小野寺丈尚太郎, 伊東素代, 西野茂人, 菊地隆
    • Organizer
      日本地球惑星科学連合平成28年度連合大会
    • Place of Presentation
      幕張メッセ(千葉県千葉市)
    • Year and Date
      2016-05-26
    • Related Report
      2016 Annual Research Report
  • [Presentation] アラスカ沖バロー沿岸ポリニヤにおける海氷生産量の経年変動2016

    • Author(s)
      平野大輔, 深町康, 渡邉英嗣, 大島慶一郎, 岩本勉之, Mahoney Andrew, Eicken Hajo, 清水大輔, 田村岳史
    • Organizer
      2016年度日本海洋学会春季大会
    • Place of Presentation
      東京大学本郷キャンパス(東京都文京区)
    • Year and Date
      2016-03-15
    • Related Report
      2015 Annual Research Report
  • [Presentation] 北極海バロー海底谷における流量、淡水、熱輸送量の長期変動2016

    • Author(s)
      伊東素代, 菊地隆, 西野茂人
    • Organizer
      2016年度日本海洋学会春季大会
    • Place of Presentation
      東京大学本郷キャンパス(東京都文京区)
    • Year and Date
      2016-03-15
    • Related Report
      2015 Annual Research Report
  • [Presentation] Spatio-temporal variations of stratification and its factors in the Chukchi Sea2016

    • Author(s)
      Onuka, M., Ueno, M., Itoh, M., Kikuchi, T., Nishino, S., Watanabe, E., Hirawake, T., Yamamoto-Kawai, M., and Mizobata, K.
    • Organizer
      2015 Ocean Sciences Meeting
    • Place of Presentation
      ニューオーリンズ(アメリカ合衆国)
    • Year and Date
      2016-02-25
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Validation of AMSR-E thin ice algorithm based on moored ice profiling sonar measurement2016

    • Author(s)
      Fukamachi, Y., Ohshima, K. I., Iwamoto, K., Tamura, T., Nihashi, S.
    • Organizer
      Workshop on satellite data for Arctic research and applications, Side event during Arctic Frontiers 2016
    • Place of Presentation
      トロムソ(ノルウェー)
    • Year and Date
      2016-01-27
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ハイブリッド特性を有するバロー沿岸ポリニヤにおける海氷生産量の経年変動2015

    • Author(s)
      平野大輔, 深町康, 渡邉英嗣, 岩本勉之, Mahoney Andrew, Eicken Hajo, 清水大輔, 大島慶一郎, 田村岳史
    • Organizer
      第6回極域科学シンポジウム
    • Place of Presentation
      国立極地研究所(東京都立川市)
    • Year and Date
      2015-11-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] チャクチ海バロー沖におけるフラジルアイス生成と海底堆積物の上方輸送の観測2015

    • Author(s)
      伊藤優人, 大島慶一郎, 深町康, 清水大輔, Mahoney, A. R., Eicken, H.
    • Organizer
      第6回極域科学シンポジウム
    • Place of Presentation
      国立極地研究所(東京都立川市)
    • Year and Date
      2015-11-16
    • Related Report
      2015 Annual Research Report
  • [Presentation] 北極バロー沖沿岸ポリニヤにおけるフラジルアイスの生成・沈降と堆積物粒子の上方輸送の観測2015

    • Author(s)
      伊藤優人, 大島慶一郎, 深町康, 清水大輔, Mahoney, A. R., Eicken, H.
    • Organizer
      2015年度日本海洋学会秋季大会
    • Place of Presentation
      愛媛大学城北キャンパス(愛媛県松山市)
    • Year and Date
      2015-09-28
    • Related Report
      2015 Annual Research Report
  • [Presentation] Sea ice formation on continental shelves: a comparison of water mass signals near an Antarctic ice shelf and off the Alaskan coast2015

    • Author(s)
      Smith, I. J., Gough, A. J., Langhorne, P. J., Eicken, H., Mahoney, A. R., Leonard, G. H., Van Hale, R., Fukamachi, Y., Jendersie, S., Jones, J., Haskell, T. G.
    • Organizer
      IGS International Symposium on Contemporary Ice-Sheet Dynamics
    • Place of Presentation
      ケンブリッジ(イギリス)
    • Year and Date
      2015-08-08
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A wind-driven, hybrid latent and sensible heat coastal polynya at Barrow, Alaska2015

    • Author(s)
      Hirano, D., Fukamachi, Y., Watanabe, E., Iwamoto, K., Mahoney, A. R., Eicken, H., Simizu, D., Ohshima, K. I., and Tamura, T.
    • Organizer
      26th IUGG General Assembly 2015
    • Place of Presentation
      プラハ(チェコ)
    • Year and Date
      2015-06-27
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sediment upward dispersion and frail ice formation by strong wnd events -A possible mechanism of iron supply to sea ice2015

    • Author(s)
      Ito, M., Ohshima, K. I., Nishioka, J., Kusumoto, Y., Mizuta, G., Fukamachi, Y.
    • Organizer
      2015 ESSAS Annual Science Meeting
    • Place of Presentation
      シアトル(アメリカ合衆国)
    • Year and Date
      2015-06-17
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Volume, heat and freshwater fluxes of Pacific Water through the Barrow Canyon in the Arctic Ocean2015

    • Author(s)
      Itoh Motoyo, KikuchI Takashi, Nishino Shigeto
    • Organizer
      Fourth International Symposium on the Arctic Research (ISAR-4)
    • Place of Presentation
      富山国際会議センター(富山県富山市)
    • Year and Date
      2015-04-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A wind-driven, hybrid latent and sensible heat coastal polynya at Barrow, Alaska2015

    • Author(s)
      Hirano, D., Fukamachi, Y., Watanabe, E., Iwamoto, K., Mahoney, A. R., Eicken, H., Simizu, D., Ohshima, K. I., and Tamura, T.
    • Organizer
      Fourth International Symposium on the Arctic Research (ISAR-4)
    • Place of Presentation
      富山国際会議センター(富山県富山市)
    • Year and Date
      2015-04-28
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] SIZONet: Multi-purpose, multi-platform observations to inform responses to an Arctic sea ice cover in transformation2015

    • Author(s)
      Eicken, H., Mahoney, A. R., Dammann, D. O., Jones, J., Hendricks, S., Fukamachi, Y., Ohshima, K. I., Haas, C., Gerland, S., Makshtas, A.
    • Organizer
      Fourth International Symposium on the Arctic Research (ISAR-4)
    • Place of Presentation
      富山国際会議センター(富山県富山市)
    • Year and Date
      2015-04-28
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Characteristics of sea-ice draft revealed by a moored ice-profiling sonar in the Chukchi Sea off Barrow, Alaska2015

    • Author(s)
      Fukamachi. Y., Simizu, D., Ohshima, K. I., Iwamoto, K., Eicken, H., Mahoney, A. R.
    • Organizer
      Fourth International Symposium on the Arctic Research (ISAR-4)
    • Place of Presentation
      富山国際会議センター(富山県富山市)
    • Year and Date
      2015-04-28
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mooring-based long-term observation of oceanographic condition in the Chukchi Sea and Canada Basin of the Arctic Ocean2015

    • Author(s)
      Kikuchi, K., Itoh, M., Nishino, S., and Watanabe, E.
    • Organizer
      EGU General Assembly 2015
    • Place of Presentation
      ウィーン(オーストリア)
    • Year and Date
      2015-04-14
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Remarks] 外部資金

    • URL

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

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report 2016 Annual Research Report
  • [Remarks] 外部資金

    • URL

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

    • Related Report
      2015 Annual Research Report

URL: 

Published: 2015-04-16   Modified: 2022-08-26  

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