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Thermohaline and material circulation originating from coastal polynyas

Research Project

Project/Area Number 17H01157
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Meteorology/Physical oceanography/Hydrology
Research InstitutionHokkaido University

Principal Investigator

OHSHIMA Keiichiro  北海道大学, 低温科学研究所, 教授 (30185251)

Co-Investigator(Kenkyū-buntansha) 深町 康  北海道大学, 北極域研究センター, 教授 (20250508)
平野 大輔  北海道大学, 低温科学研究所, 助教 (30790977)
二橋 創平  苫小牧工業高等専門学校, 創造工学科, 教授 (50396321)
青木 茂  北海道大学, 低温科学研究所, 准教授 (80281583)
西岡 純  北海道大学, 低温科学研究所, 准教授 (90371533)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥44,460,000 (Direct Cost: ¥34,200,000、Indirect Cost: ¥10,260,000)
Fiscal Year 2019: ¥10,270,000 (Direct Cost: ¥7,900,000、Indirect Cost: ¥2,370,000)
Fiscal Year 2018: ¥15,600,000 (Direct Cost: ¥12,000,000、Indirect Cost: ¥3,600,000)
Fiscal Year 2017: ¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000)
Keywords海氷生成 / 沿岸ポリニヤ / ブラジルアイス / 気候変動 / 南極底層水 / マイクロ波放射計 / 物質循環 / 鉄 / 中深層水 / 海洋物理 / 人工衛星 / フラジルアイス
Outline of Final Research Achievements

In the Antarctic, Arctic, and Okhotsk coastal polynyas, underwater frazil ice formation occurs down to a depth of ~100m under strong cooling, revealed by the detailed analysis of mooring data. This active underwater frazil ice formation results in much higher ice production than previously thought. In such polynyas, winter mixing often reaches to the ocean bottom. Thus, the bottom sediments dispersed by the strong bottom current can be brought up to near the surface and finally incorporated into sea ice (suspension freezing). This process is a possible mechanism of iron supply to sea ice, which melts in spring and causes phytoplankton bloom. We have developed a new algorithm of satellite passive microwave for detection of frazil ice and estimation of thin ice thickness, using the mooring data as validation data. This provides better estimation of sea ice production for global coastal polynyas, linked with deep/intermediate water formation.

Academic Significance and Societal Importance of the Research Achievements

地球気候を決める海洋の中深層循環は、極域・海氷域の沿岸ポリニヤという薄氷域での重い水の沈み込みが起点となる。この重い水は、高海氷生産に伴う高塩分水排出により生成されるが、その過程の詳細は実測が乏しくよくわかっていない。本研究は、係留系と衛星の観測から、沿岸ポリニヤでは、フラジルアイスという海中での海氷生成が高海氷生産システムを生んでいること、フラジルアイスを介して鉄などの栄養分が輸送され、物質循環・生物生産の起点になっていることを明らかにした。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (132 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (8 results) Journal Article (34 results) (of which Int'l Joint Research: 19 results,  Peer Reviewed: 26 results,  Open Access: 12 results) Presentation (89 results) (of which Int'l Joint Research: 51 results,  Invited: 9 results) Book (1 results)

  • [Int'l Joint Research] トゥーリア大学(ドイツ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] タスマニア大学(オーストラリア)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] ワシントン大学/アラスカ大学(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] アラスカ大学フェアバンクス校/ワシントン大学(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] タスマニア大学/オーストラリア南極局(オーストラリア)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] トゥーリア大学(ドイツ)

    • 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] タスマニア大学/オーストラリア南極局(オーストラリア)

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Sea ice observation with oceanographic HF Radar2020

    • Author(s)
      Zhang, W., N. Ebuchi, Y. Fukamachi, F. Cheng, K.I. Ohshima, B.M. Emery, T. Toyota, H. Abe, and K. Shirasawa
    • Journal Title

      IEEE Transactions on Geoscience and Remote Sensing

      Volume: 58 Issue: 1 Pages: 378-390

    • DOI

      10.1109/tgrs.2019.2936576

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Observational evidence of supercooling and frazil ice formation throughout the water column in a coastal polynya in the Sea of Okhotsk2020

    • Author(s)
      Ito M., Fukamachi Y., Ohshima K. I., Shirasawa K.
    • Journal Title

      Continental Shelf Research

      Volume: 196 Pages: 104072-104072

    • DOI

      10.1016/j.csr.2020.104072

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Size fractionation and bioavailability of iron released from melting sea ice in the subpolar marginal sea2020

    • Author(s)
      Kanna, N., D. Lannuzel, P. van der Merwe, J. Nishioka
    • Journal Title

      Marine Chemistry

      Volume: on-line Pages: 103774-103774

    • DOI

      10.1016/j.marchem.2020.103774

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Landfast ice controls on sea-ice production in the Cape Darnley Polynya: A case study2019

    • Author(s)
      Fraser A. D., Ohshima K. I., Nihashi S., Massom R. A., Tamura T., Nakata K., Williams G. D.
    • Journal Title

      Remote Sensing of Environment

      Volume: 233 Pages: 111315-111315

    • DOI

      10.1016/j.rse.2019.111315

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / 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
  • [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
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Recent research results and future project in the Antarctic Ocean by Umitaka-maru research group for physical oceanography2019

    • Author(s)
      Kitade, Y., K. Shimada, S. Aoki, K. I. Ohshima
    • Journal Title

      Oceanography Challenges to Future Earth -Human and Natural Impacts on our Seas-

      Volume: - Pages: 123-135

    • DOI

      10.1007/978-3-030-00138-4_10

    • ISBN
      9783030001377, 9783030001384
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [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] Retrieval of Wintertime Sea Ice Production in Arctic Polynyas Using Thermal Infrared and Passive Microwave Remote Sensing Data2019

    • Author(s)
      Preusser A, Ohshima K. I., Iwamoto K., Willmes S., Heinemann G.
    • Journal Title

      Journal of Geophysical Research

      Volume: 124 Issue: 8 Pages: 5503-5528

    • DOI

      10.1029/2019jc014976

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 未知の南極底層水生成域の発見2019

    • Author(s)
      大島慶一郎
    • Journal Title

      学術研究船「白鳳丸」30年のあゆみ, 東京大学大気海洋研究所

      Volume: ー Pages: 7-7

    • Related Report
      2019 Annual Research Report
  • [Journal Article] 第四の南極底層水生成域の発見2019

    • Author(s)
      大島慶一郎
    • Journal Title

      学術の動向, 日本学術会議

      Volume: 11 Pages: 66-68

    • NAID

      130007818321

    • Related Report
      2019 Annual Research Report
  • [Journal Article] 氷がつくる海洋大循環とその変動2019

    • Author(s)
      大島慶一郎
    • Journal Title

      Ocean Newsletter

      Volume: 451 Pages: 2-3

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Seasonal changes of water mass, circulation and dynamic response in the Kuril Basin of the Sea of Okhotsk.2019

    • Author(s)
      Mensah, V., K. I. Ohshima, T, Nakanowatari, S. Riser
    • Journal Title

      Deep-Sea Research Part I

      Volume: 144 Pages: 115-131

    • DOI

      10.1016/j.dsr.2019.01.012

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Grease ice observations in the southern Sea of Okhotsk with P/V Soya.2019

    • Author(s)
      Ito, M., T. Toyota, J. Nishioka, D. Nomura, N. Kanna, K. Murakami and K. I. Ohshima
    • Journal Title

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

      Volume: 2019 Pages: 247-250

    • Related Report
      2018 Annual Research Report
  • [Journal Article] The Relationship between phytoplankton bloom and sea ice melt in the Sea of Okhotsk, revealed from the profiling floats.2019

    • Author(s)
      Kishi, S., K. I. Ohshima, N. Isshiki, S. Nihashi, S. C. Riser
    • Journal Title

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

      Volume: 2019 Pages: 363-366

    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [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, K. I. Ohshima
    • Journal Title

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

      Volume: 2019 Pages: 190-192

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Accumulation processes of trace metals into Arctic sea ice: distribution of Fe, Mn and Cd associated with ice structure2019

    • Author(s)
      Evans, L. K., J. Nishioka
    • Journal Title

      Marine Chemistry

      Volume: 209 Pages: 36-47

    • DOI

      10.1016/j.marchem.2018.11.011

    • 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 iron supply processes fueling spring phytoplankton growth in a sub-polar marginal sea, the Sea of Okhotsk: Importance of sea ice and the East Sakhalin Current2018

    • Author(s)
      Kanna, N., Y. Sibano, T. Toyota, J. Nishioka
    • Journal Title

      Marine Chemistry

      Volume: 206 Pages: 109-120

    • DOI

      10.1016/j.marchem.2018.08.006

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quantitative analysis of Fe, Mn and Cd from sea ice and seawater in the Chukchi Sea, Arctic Ocean2018

    • Author(s)
      Evans, L. K., J. Nishioka
    • Journal Title

      Polar Science

      Volume: 17 Pages: 50-58

    • DOI

      10.1016/j.polar.2018.07.002

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Estimation of sea-ice thickness and volume in the Sea of Okhotsk based on ICESat data2018

    • Author(s)
      Nihashi, S., N. T. Kurtz, T. Markus, K. I. Ohshima, K. Tateyama, T. Toyota
    • Journal Title

      Annals of Glaciology

      Volume: - Issue: 76pt2 Pages: 1-11

    • DOI

      10.1017/aog.2018.8

    • NAID

      120006528262

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [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] Freshening by glacial meltwater enhances melting of ice shelves and reduces formation of Antarctic Bottom Water.2018

    • Author(s)
      Silvano, A., S. R. Rintoul, B. Pena-Molino, W. R. Hobbs, E. van Wijk, S. Aoki, T. Tamura, G. D. Williams
    • Journal Title

      Science Advances

      Volume: 4 Issue: 4 Pages: 9467-9467

    • DOI

      10.1126/sciadv.aap9467

    • 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 2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Seasonal variability of hydrographic properties and of the circulation in the Kuril Basin2018

    • Author(s)
      Mensah, V., K. I. Ohshima, T. Nakanowatari, and S. Riser
    • Journal Title

      Proceedings of The 33rd International Symposium on Okhotsk Sea & Polar Oceans 2018

      Volume: ― Pages: 215-218

    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] Dense shelf water circulation and spreading from the northern Okhotsk Sea shelves to the deep sea2018

    • Author(s)
      Gladyshev, S. V., A. L. Figurkin, H. Kashiwase, and K. I. Ohshima
    • Journal Title

      Proceedings of The 33rd International Symposium on Okhotsk Sea & Polar Oceans 2018

      Volume: ― Pages: 219-222

    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] Volume, heat, and salt transports through the Soya Strait and their2017

    • Author(s)
      Ohshima, K. I., D. Simizu, N. Ebuchi, S. Morishima, and H. Kashiwase
    • Journal Title

      J. Phys. Oceanogr.

      Volume: 47,5 Issue: 5 Pages: 999-1019

    • DOI

      10.1175/jpo-d-16-0210.1

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hydrographic observations by instrumented marine mammals in the Sea of Okhotsk2017

    • Author(s)
      3.Nakanowatari, T., K. I. Ohshima, V. Mensah, Y. Mitani, K. Hattori, M. Kobayashi, F. Roquet, Y. Sakurai, H. Mitsudera, and M. Wakatsuchi
    • Journal Title

      Polar Science

      Volume: 13 Pages: 56-65

    • DOI

      10.1016/j.polar.2017.06.001

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Sea-ice production in the northern Japan Sea2017

    • Author(s)
      Nihashi Sohey、Ohshima Kay I.、Saitoh Sei-Ichi
    • Journal Title

      Deep Sea Research Part I

      Volume: 127 Pages: 65-76

    • DOI

      10.1016/j.dsr.2017.08.003

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evidence for ice-ocean albedo feedback in the Arctic Ocean shifting to a seasonal ice zone2017

    • Author(s)
      Kashiwase Haruhiko、Ohshima Kay I.、Nihashi Sohey、Eicken Hajo
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1 Pages: 1-10

    • DOI

      10.1038/s41598-017-08467-z

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Sea-Ice Production in Antarctic Coastal Polynyas Estimated From AMSR2 Data and Its Validation Using AMSR-E and SSM/I-SSMIS Data2017

    • Author(s)
      Nihashi Sohey、Ohshima Kay I.、Tamura Takeshi
    • Journal Title

      IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing

      Volume: 10(9) Issue: 9 Pages: 3912-3922

    • DOI

      10.1109/jstars.2017.2731995

    • NAID

      120006367987

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [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
  • [Presentation] Interannual variability of sea ice production in the Dalton Polynya and its possible effects on melting of the Totten Glacier2020

    • Author(s)
      Mine K., Ohshima K. I., Nakata K., Nihashi S., Fraser A., Tamura T.
    • Organizer
      JpGU-AGU Joint Meeting 2020
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dense water production and downslope flow off Cape Darnley reproduced by a realistic numerical model2020

    • Author(s)
      Mensah V., Nakayama Y., Fujii M., Nogi Y., Ohshima K. I.
    • Organizer
      JpGU-AGU Joint Meeting 2020
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Changes of Oyashio water properties due to multi-decadal and 18.6-year period variabilities2020

    • Author(s)
      Mensah V., Ohshima K. I.
    • Organizer
      JpGU-AGU Joint Meeting 2020
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 北太平洋の海洋循環・物質循環を駆動するオホーツク海2019

    • Author(s)
      大島慶一郎
    • Organizer
      海氷情報センター開設50年記念, 第一管区海上保安本部
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] アメリ―棚氷沖におけるフラジルアイスと高生物量の同時発生過程2019

    • Author(s)
      町村典彦, 大島慶一郎, 中田和輝, 伊藤優人, 深町康, 真壁竜介, 高尾信太郎, 二橋創平
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 南大洋インド洋区における海洋地球科学総合観測:白鳳丸KH-19-1次航海成果速報2019

    • Author(s)
      池原実, 大島慶一郎, 板木拓也, 佐藤暢, 藤井昌和, 川合美千代, 松井浩紀, 池上隆仁, 白鳳丸KH-19-1乗船研究者一同
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 2019年夏季のケープダンレー沖におけるクロロフルオロカーボンと六フッ化硫黄の観測結果速報2019

    • Author(s)
      大橋良彦, 川合美千代, 佐々木建一, 熊川小綾花, 田村尚之, 大島慶一郎
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 南大洋子午面循環の直接測流と定量評価を目指した係留観測2019

    • Author(s)
      北出裕二郎, 溝端浩平, 渡部和帆, 程霊巧, 高郭平, 青木茂, 牛尾収輝, 嶋田啓資, 大島慶一郎
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Estimation of thin ice thickness and discrimination of ice type from AMSR2 passive microwave data2019

    • Author(s)
      Nakata K., Tamaru N., Nihashi S., Ohshima K. I.
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Fluctuations of the ice flow velocity of Shirase glacier and its surrounding landfast ice displacement in east Antarctica derived from ALOS-2/PALSAR-2 image correlation2019

    • Author(s)
      Nakamura K., Aoki S., Yamanokuchi T., Tamura T., Ushio S., Doi K.
    • Organizer
      IEEE International Geoscience and Remote Sensing Symposium 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 南極ケープダンレーポリニヤ域における植物プランクトンの秋季大増殖を伴う新成氷生成2019

    • Author(s)
      伊藤優人, 平野大輔, 真壁竜介, 高橋啓伍, 大島慶一郎, 田村岳史, 青木茂
    • Organizer
      2019年度日本海洋学会秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Arctic polynyas: Retrieval of wintertime sea-ice production using satellite-derived thin-ice thickness distributions2019

    • Author(s)
      Preusser A., Ohshima K. I., Willmes S., Heinemann G.
    • Organizer
      EGU General Assembly 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Importance of marginal seas and intermediate water formation for micro- and macro-nutrients circulation in the North Pacific2019

    • Author(s)
      Nishioka J., Obata H., Ogawa H., Yasuda I.
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Estimation of ice thickness and volume in the Sea of Okhotsk using ICESat and CryoSat-2 dat2019

    • Author(s)
      Nihashi S., Kurtz N., Toyota T.
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ICESatならびにCryoSat-2 dataを用いたオホーツク海の氷厚ならびにice volumeの推定2019

    • Author(s)
      二橋創平, Kurtz N., 豊田威信
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] First continuous profiler observation of wintertime Antarctic coastal polynya2019

    • Author(s)
      青木茂, 小野数也, 平野大輔, 伊藤優人, 野口智英, 小澤知史
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Accumulation processes of trace metals into arctic sea ice: distribution of Fe, Mn and Cd associated with ice structure2019

    • Author(s)
      Evans L. K., Nishioka J.
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Ice thickness and volume in the Sea of Okhotsk estimated using ICESat and CryoSat-2 data2019

    • Author(s)
      Nihashi S., Kurtz N., Toyota T.
    • Organizer
      IUGG 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sea-ice thickness and volume in the Sea of Okhotsk estimated on the basis of ICESat and CryoSat-2 data2019

    • Author(s)
      Nihashi S., N. Kurtz, T. Toyota
    • Organizer
      International Symposium on Sea Ice at the Interface, International Glaciological Society
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Moring observation of underwater interaction between frazil ice and sediment in an Arctic polynya2019

    • Author(s)
      Ito M., Ohshima K. I., Fukamachi Y., Hirano D., Mahoney A. R., Jones J., Takatsuka T., Eicken H.
    • Organizer
      International Symposium on Sea Ice at the Interface, International Glaciological Society
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Estimation of sea ice production in the Bering Sea from AMSR-E and AMSR2 data, with special emphasis on the Anadyr Polynya2019

    • Author(s)
      Ohshima K. I., Tamaru N., Nihashi S., Nakata K., Iwamoto K.
    • Organizer
      International Symposium on Sea Ice at the Interface, International Glaciological Society
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 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2019

    • 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, 田邊優貴子, 関宰, 金田平太郎, 松井浩紀, 羽田裕貴, 須藤斎, 藤井昌和, 平野大輔
    • Organizer
      日本地質学会第126年学術大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ベーリング海における海氷生産量の見積もり:アナディールポリニヤに着目して2019

    • Author(s)
      大島慶一郎, 田丸直也, 柏瀬陽彦, 二橋創平, 中田和輝, 岩本勉之
    • Organizer
      2019年度日本海洋学会秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 酸素センサー付フロートからわかるオホーツク海での海氷融解と春季ブルームの関係2019

    • Author(s)
      岸紗智子, 大島慶一郎, 一色倫聡, 二橋創平, Riser S. C.
    • Organizer
      2019年度日本海洋学会秋季大会
    • Related Report
      2019 Annual Research Report
  • [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
      2019年度日本海洋学会秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Micro- and macro-nutrient supply from the marginal seas to the North Pacific Ocean and its changing2019

    • Author(s)
      Nishioka J., Obata H., Yasuda I.
    • Organizer
      PICES annual meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Two decades of coastal ice and ocean change in northern Alaska: Evolving research partnerships and observing approaches2019

    • Author(s)
      Eicken H., Mahoney A. R., Fukamachi Y., Ohshima K. I., Jones J., Oggier M., Kettle N., Abdel-Fattah D., Hauser D., Adams B., Leavitt J., Hirano D., Ito M.
    • Organizer
      AGU Fall Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Interannual and seasonal variations of volume transport through the Soya Strait and their relation with those through the Tsushima-Korea and Tsugaru Straits.2019

    • Author(s)
      Ohshima, K. I., D. Simizu, N. Ebuchi
    • Organizer
      Pacific Asian Marginal Seas (PAMS) 20th meeting 2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Variabilities of the Sea Surface Height in the Kuril Basin of the Okhotsk Sea: Coherent shelf-trapped mode and Rossby wave-like mode2019

    • Author(s)
      Mensah, V., K. I. Ohshima
    • Organizer
      Pacific Asian Marginal Seas (PAMS) 20th meeting 2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Seasonal changes of water mass, circulation and dynamic response in the Kuril Basin of the Okhotsk Sea2019

    • Author(s)
      Mensah, V., K. I. Ohshima, T. Nakanowatari, S. Riser
    • Organizer
      Pacific Asian Marginal Seas (PAMS) 20th meeting 2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The relationship between phytoplankton bloom and sea ice melt in the Sea of Okhotsk, revealed from the profiling floats2019

    • Author(s)
      Kishi, S., K. I. Ohshima, N. Isshiki, S. Nihashi, and S. Riser
    • Organizer
      The 34th International Symposium on the Okhotsk Sea & Polar Oceans
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Grease ice observations in the southern Sea of Okhotsk with P/V Soya.2019

    • Author(s)
      Ito, M., T. Toyota, J. Nishioka, D. Nomura, N. Kanna, K. Murakami and K. I. Ohshima
    • Organizer
      The 34th International Symposium on the Okhotsk Sea & Polar Oceans
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Strong ice-ocean interaction at Shirase Glacier Tongue, East Antarctica.2018

    • Author(s)
      Hirano, D., T. Tamura, K. Kusahara, Kay I. Ohshima, S. Ushio, D. Simizu, K. Ono, S. Aoki
    • Organizer
      The 9th Symposium on Polar Science
    • 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 Sea.2018

    • Author(s)
      Ito, M., K. I. Ohshima, Y. Fukamachi, H. Eicken, A. R. Mahoney, J. Jones, T. Takatsuka
    • Organizer
      The 9th Symposium on Polar Science
    • Related Report
      2018 Annual Research Report
  • [Presentation] Wintering habitat of Weddell seals along the continental shelf off Enderby Land, East Antarctica2018

    • Author(s)
      Kokubun, N., Y. Tanabe, T. Tamura, V. Mensah, D. Hirano, S. Aoki, A. Takahashi
    • Organizer
      第9回極域科学シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] The effect of basal melting of the Shirase Glacier on the CO2 system in Lützow-Holm Bay, East Antarctica2018

    • Author(s)
      Kiuchi, M., D. Nomura, D. Hirano, T. Tamura, T. Noguchi, G. Hashida, S. Aoki
    • Organizer
      第9回極域科学シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] Carbon transport by Dense Shelf Water formation in the Cape Darnley Polynya, East Antarctica2018

    • Author(s)
      Murakami, K., D. Nomura, G. Hashida, S. Nakaoka, Y. Kitade, D. Hirano, K. I. Ohshima
    • Organizer
      第9回極域科学シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] 東南極・白瀬氷河氷舌の底面融解2018

    • Author(s)
      平野 大輔, 田村 岳史, 大島 慶一郎, 牛尾 収輝, 清水 大輔, 小野 数也, 野口 智英, 青木 茂
    • Organizer
      2018年度日本海洋学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [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, H. Eicken, A. R. Mahoney, J. Jones
    • Organizer
      2018年度日本海洋学会秋季大会
    • 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] Water Properties and Circulation Underneath a Floating Tongue of Langhovde Glacier, East Antarctica2018

    • Author(s)
      Minowa, M., S. Sugiyama, M. Ito, S. Yamane, S. Aoki, and T. Tamura
    • Organizer
      32nd Forum for Research into Ice Shelf Processess workshop 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Observations of ice tongue-ocean interaction at Shirase Glacier2018

    • Author(s)
      Hirano, D., T. Tamura, S. Ushio, K. I. Ohshima, D. Simizu, K. Ono, T. Noguchi, S. Aoki
    • Organizer
      POLAR 2018 SCAR/IASC Open Science Conference
    • 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] Sea-ice production in Antarctic coastal polynyas estimated using AMSR-E and AMSR2 data2018

    • Author(s)
      Nihashi, S., K. I. Ohshima, and T. Tamura
    • Organizer
      AOGS 15th Annual Meeting 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sea-Ice Thickness and Volume in the Sea of Okhotsk Revealed from ICESat Data2018

    • Author(s)
      Nihashi, S., N. Kurtz, T. Markus, K. I. Ohshima, K. Tateyama, and T. Toyota
    • Organizer
      AOGS 15th Annual Meeting 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Monitoring of the Soya Warm Current by HF Ocean Radars since 20032018

    • Author(s)
      Ebuchi, N., Y. Fukamachi, K. I. Ohshima, T. Takatsuka, M. Ishikawa, K. Shirasawa, and M. Wakatsuchi
    • Organizer
      4th Ocean Radar Conference for Asia-Pacific
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Seasonal variability of the water mass transport and its link with the anticyclonic circulation of the Kuril Basin2018

    • Author(s)
      Mensah, V., K. I. Ohshima, T. Nakanowatari, S. Riser
    • Organizer
      JpGu annual meeting 2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] An evidence of a subglacial freshwater discharge into a fjord at the boundary of Bowdoin Glacier, northwestern Greenland2018

    • Author(s)
      Kanna, N., Sugiyama, S., Sakakibara, D., Fukamachi, Y., Nomura D., Fukumoto, S., Podolskiy, E.
    • Organizer
      JpGU Meeting 2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] Under-ice application of Remotely-Operated Vehicle on the Antarctic continental shelf2018

    • Author(s)
      青木 茂, 田村 岳史, 平野 大輔, 伊藤 優人, 小野 数也, 柏瀬 陽彦
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 南極海未探査領域への挑戦2018

    • Author(s)
      野木 義史, 青木 茂, 吉田 弘, 巻 俊宏, 沖野 郷子, 青山 雄一, 田村 岳史, 末吉 哲雄
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 未知(第4)の南極底層水生成域の発見.2018

    • Author(s)
      大島慶一郎
    • Organizer
      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
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 水位差から推定される、過去50年の宗谷暖流流量とその対馬・津軽暖流流量との関係2018

    • Author(s)
      大島慶一郎
    • Organizer
      日本海洋学会2018年度秋季大会
    • 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
    • Invited
  • [Presentation] Effects of High Albedo and Brine Rejection of Sea Ice on the Arctic Ocean and its Recent Change2018

    • Author(s)
      Ohshima, K. I.
    • Organizer
      Keynote speech on Fifth International Symposium on Arctic Research (ISAR-5)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Continuous sea-ice thickness measurement in the northeastern coastal Chukchi Sea from 20092018

    • Author(s)
      Fukamachi Y., 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] Ice-ocean albedo feedback in the Arctic Ocean shifting to a seasonal ice zone2018

    • Author(s)
      Kashiwase H., Ohshima K. I., Nihashi S., and Eicken H.
    • 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)
      Itoh M., Y. Fukamachi, N. Kimura, R. A. Krishfield, T. Kikuchi, E. Moriya, J. Onodera and N. 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)
      Kimura N., H. Hasumi, M. Itoh, Y. Fukamachi, T. Kikuchi and E. Moriya
    • Organizer
      Fifth International Symposium on Arctic Research (ISAR-5)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Circumpolar Polynya Characteristics in the Arctic - A Multisensor Intercomparison for the Period 2002/2003 to 2010/20112018

    • Author(s)
      Preuser A., Willmes S., Heinemann G., and Ohshima K. I.
    • 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)
      Kawaguchi Y., 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] High ice production in antarctic coastal polynyas and its possible linkage to material cycle and biological productivity2018

    • Author(s)
      Ohshima, K. I., M. Ito, S. Nihashi, Y. Fukamachi, K. Nakata, and D. Simizu
    • Organizer
      The 2018 Ocean Sciences Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Transports of macronutrient and inorganic carbon to surface waters by subglacial meltwater plume in Bowdoin Fjord in northwest Greenland2018

    • Author(s)
      Kanna N., S. Sugiyama, Y. Ohashi, D. Sakakibara, B. Nishizawa, I. Asaji, Y. Fukamachi, and D. Nomura
    • Organizer
      The 2018 Ocean Sciences Meeting
    • 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)
      Eicken H., A. R. Mahoney, O. A. Lee, M. A. Johnson, J. Jones, Y. Fukamachi, Kay I. Ohshima, and G. George
    • Organizer
      The 2018 Ocean Sciences Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evidence for ice-ocean albedo feedback in the Arctic Ocean shifting to a seasonal ice zone2018

    • Author(s)
      Kashiwase H., Ohshima K. I., Nihashi S., and Eicken H.
    • Organizer
      The 2018 Ocean Sciences Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Seasonal variability of hydrographic properties and of the circulation in the Kuril Basin2018

    • Author(s)
      Mensah, V., Ohshima K. I., Nakanowatari T., and Riser S.
    • Organizer
      The 33rd International Symposium on Okhotsk Sea & Polar Oceans 2018
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dense shelf water circulation and spreading from the northern Okhotsk Sea shelves to the deep sea2018

    • Author(s)
      Gladyshev, S. V., Figurkin A. L., Kashiwase H., and Ohshima K. I.
    • Organizer
      The 33rd International Symposium on Okhotsk Sea & Polar Oceans 2018
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Possibility of AABW source originating from meddle size of Polynya along the coast of Australian-Antarctic Basin2017

    • Author(s)
      Kitade, Y., Shimada K., Ogata Y., Aoki S., Kobayashi T., Mizobata K., Tamura T., Suga T., and Ohshima K. I.
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Increasing fresh water impact on sea level rise in Australian-Antarctic Basin2017

    • Author(s)
      Shimada, K., Kitade Y., Aoki S., Ohshima K. I., Mizobata K., and Tamura T.
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Circumpolar mapping of the Antarctic coastal polynyas with discrimination of ice type2017

    • Author(s)
      Nakata K., Ohshima K. I., and Nihashi S.
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Observations of ice tongue-ocean interaction at Shirase Glacier2017

    • Author(s)
      Daisuke H., Tamura T., Ushio S., Ohshima K. I., Simizu D., Ono K., Noguchi T., and Aoki S.
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Variability of Antarctic coastal polynyas and their linkage with fast ice revealed from AMSR-E and AMSR2 data2017

    • Author(s)
      Nihashi S., Ohshima K. I., and Tamura T.
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 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 Y., Simizu D., Ohshima K. I., Eicken H., Mahoney A., Iwamoto K., Moriya E. and Nihashi S.
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Subglacial meltwater discharge and its impact on water properties in Bowdoin Fjord, northwestern Greenland2017

    • Author(s)
      大橋良彦,青木茂,松村義正,杉山慎,漢那直也,榊原大貴,深町康
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] グリーンランド北西部Bowdoin氷河の高濁度融解水流出過程がフィヨルドの基礎生産に与える影響2017

    • Author(s)
      漢那直也,杉山慎,大橋良彦,榊原大貴,西沢文吾,浅地泉,深町康
    • 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)
      Kawaguchi Y., M. Itoh, T. Kikuchi, J. Onodera, N. Harada, Y. Fukamachi, and E. Moriya
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The suppression of Antarctic Bottom Water formation by melting ice shelves in prydz bay2017

    • Author(s)
      Williams, G., Herraiz-Borreguero L., Roquet F., Tamura T., Ohshima K., Fukamachi Y., Fraser A., Gao L., Mcmahon C., Harcourt R., and Hindell M.
    • Organizer
      AOGS 14th Annual Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sea-ice production in Antarctic coastal polynyas estimated from AMSR2 data and its comparison with AMSR-E and SSM/I-SSMIS data2017

    • Author(s)
      Nihashi, S., Ohshima K. I., and Tamura T.
    • Organizer
      IGS International Symposium on Polar Ice, Polar Climate, Polar Change
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sea-ice thickness and volume in the Sea of Okhotsk estimated from ICESat data2017

    • Author(s)
      Nihashi S., Kurtz N. T., Markus T., Ohshima K. I., Tateyama K., and Toyota T.
    • Organizer
      IGS International Symposium on Polar Ice, Polar Climate, Polar Change
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Cape Darnley polynya: a case study in landfast sea-ice-coastal polynya interaction2017

    • Author(s)
      Fraser A., Ohshima K. I., Nihashi S., Tamura T., Nakata K., Williams G., Massom R., Carpentier S., and Willmes S.
    • Organizer
      IGS International Symposium on Polar Ice, Polar Climate, Polar Change
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] カービング氷河の高濁度融解水流出がフィヨルド生態系へ与える影響2017

    • Author(s)
      漢那直也,杉山慎,大橋良彦,榊原大貴,西沢文吾,浅地泉,深町康,阿部義之,山口篤
    • Organizer
      日本雪氷学会 雪氷研究大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] オホーツク海サハリンポリニヤで観測された海氷生産の日周変動2017

    • Author(s)
      伊藤優人,深町康,大島慶一郎,白澤邦男
    • Organizer
      日本海洋学会2017年度秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] ビンセネス湾沖における巨大係留系による長期観測2017

    • Author(s)
      北出裕二郎, 嶋田啓資, 溝端浩平, 青木茂, 田村岳史, 千手智晴, 深町康, 大島慶一郎
    • Organizer
      日本海洋学会2017年度秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] グリーンランド北西部Bowdoinフィヨルドにおける氷河流出水の挙動の時間発展2017

    • Author(s)
      大橋良彦,青木茂,松村義正,杉山慎,漢那直也,榊原大貴,深町康
    • Organizer
      日本海洋学会2017年度秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 氷河融氷水の流出が駆動するグリーンランドフィヨルドにおける栄養塩輸送過程2017

    • Author(s)
      漢那直也,杉山慎,大橋良彦,榊原大貴,西沢文吾,浅地泉,深町康
    • Organizer
      日本海洋学会2017年度秋季大会
    • Related Report
      2017 Annual Research Report
  • [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] 海氷の気候変動における役割:北極海 vs. 南極海2017

    • Author(s)
      大島慶一郎
    • Organizer
      日本気象学会2017年度秋季大会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Observations of ice tongue-ocean interaction at Shirase Glacier2017

    • Author(s)
      Hirano D., Tamura T., Ushio S., Ohshima K. I., Simizu D., Ono K., Noguchi T., and Aoki S.
    • Organizer
      The 8th Symposium on Polar Science
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mooring measurement in Bowdoin Fjord in northwestern Greenland2017

    • Author(s)
      Fukamachi Y. N. Kanna., S. Sugiyama, Y. Ohashi, D. Sakakibara, and D. Nomura
    • Organizer
      The 8th Symposium on Polar Science
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sea-ice thickness from moored ice-profiling sonar in the Canada Basin, Arctic Ocean2017

    • Author(s)
      Kikuchi T., Itoh M., Fukamachi Y., Kimura N., Krishfield R. A., Moriya E., Onodera J. and Harada N.
    • Organizer
      Arctic Change 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Book] 低温科学76巻2018

    • Author(s)
      勝又勝郎,大島慶一郎,青木茂,川合美千代 他
    • Total Pages
      288
    • Publisher
      北海道大学低温科学研究所
    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2022-02-28  

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