• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Ocean circulation changes in the Pacific Ocean and the Bering Sea originated from the Arctic Ocean

Research Project

Project/Area Number 16K05563
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Meteorology/Physical oceanography/Hydrology
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

KAWAI Yoshimi  国立研究開発法人海洋研究開発機構, 地球環境観測研究開発センター, 主任研究員 (40374897)

Co-Investigator(Kenkyū-buntansha) 増田 周平  国立研究開発法人海洋研究開発機構, 地球環境観測研究開発センター, グループリーダー (30358767)
Research Collaborator OSAFUNE Satoshi  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords海洋物理 / 北極海 / ベーリング海 / 塩分 / 海面高度 / 海洋物理・陸水学 / 物質循環 / 気候変動
Outline of Final Research Achievements

The authors have investigated whether changes in the Arctic Ocean can affect the Bering Sea or the Pacific Ocean by analyzing datasets of numerical models and observations. When sea surface height along the Siberian coast in the Arctic Ocean is lower in the cold season (October to March), the Bering Strait throughflow to the Arctic Ocean strengthens, and sea surface salinity becomes higher in the northwestern part of the Bering Sea with a lag of a few month. This effect, however, does not extend south of 60°N. The authors have also examined responses of the atmosphere to the seas, and have found that upward motion near the surface is reinforced most in October and November in the Chukchi Sea, and that bottom topography affects low-level clouds and downward solar radiation in the Bering Sea.

Academic Significance and Societal Importance of the Research Achievements

北極では温暖化が急速に進行するなど環境が大きく変わりつつあり、この変化が低緯度側の地域にまで波及し得るのかは社会的にも重要な問題である。北極海からベーリング海への影響伝播は今までほとんど考慮されておらず、学術的にも新しいテーマである。本研究ではシ北極海シベリア沿岸の変動がベーリング海の海洋循環場に影響を与えることがわかった。ベーリング海は世界有数の好漁場であり、この海域の物理場の変化は水産や海洋酸性化にも波及する可能性がある。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (15 results)

All 2019 2018 2017 2016

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (12 results) (of which Int'l Joint Research: 7 results)

  • [Journal Article] In Situ Evidence of Low-Level Atmospheric Responses to the Oyashio Front in Early Spring2019

    • Author(s)
      Kawai, Y., H. Nishikawa, and E. Oka
    • Journal Title

      Journal of the Meteorological Society of Japan. Ser. II

      Volume: 97 Issue: 2 Pages: 423-438

    • DOI

      10.2151/jmsj.2019-024

    • NAID

      130007623234

    • ISSN
      0026-1165, 2186-9057
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Relations between salinity in the northwestern Bering Sea, the Bering Strait throughflow and sea surface height in the Arctic Ocean2018

    • Author(s)
      Kawai Yoshimi、Osafune Satoshi、Masuda Shuhei、Komuro Yoshiki
    • Journal Title

      Journal of Oceanography

      Volume: 74 Issue: 3 Pages: 239-261

    • DOI

      10.1007/s10872-017-0453-x

    • NAID

      40021556606

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comparison of Vaisala radiosondes RS41 and RS92 launched over the oceans from the Arctic to the tropics2017

    • Author(s)
      Kawai Yoshimi、Katsumata Masaki、Oshima Kazuhiro、Hori Masatake E.、Inoue Jun
    • Journal Title

      Atmospheric Measurement Techniques

      Volume: 10 Issue: 7 Pages: 2485-2498

    • DOI

      10.5194/amt-10-2485-2017

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Atmospheric responses to sea surface temperature in the Bering Sea and Chukchi Sea2018

    • Author(s)
      川合義美
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Intensive observations of imprints of the Oyashio (subarctic) front on the atmosphere in April 20132018

    • Author(s)
      Yoshimi Kawai, Hatsumi Nishikawa, and Eitarou Oka
    • Organizer
      2018 American Geophysical Union (AGU) Fall Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Long-term sea level changes in an ocean state estimation of ESTOC2018

    • Author(s)
      Shuhei Masuda, Satoshi Osafune, and Tadashi Hemmi
    • Organizer
      Asia Oceania Geosciences Society (AOGS) 15th Annual Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Convergence of the sea surface wind over the marginal ice zone in the Chukchi Sea and the Bering Sea2018

    • Author(s)
      Kawai, Y.
    • Organizer
      2018 Ocean Sciences Meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Interannual salinity variations in the northwestern Bering Sea associated with the Bering Strait throughflow2017

    • Author(s)
      Kawai, Y., S. Osafune, S. Masuda, and Y. Komuro
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Case study on impact propagation of radiosonde data assimilation over the Kuroshio and Kuroshio Extension2017

    • Author(s)
      Kawai, Y., Q. Moteki, A. Yoshida-Kuwano, T. Enomoto, A. Manda, and H. Nakamura
    • Organizer
      2017 Joint IAPSO-IAMAS-IAGA Assembly
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 海上におけるバイサララジオゾンデRS41とRS92の比較2017

    • Author(s)
      川合義美・勝俣昌己・大島和裕・堀正岳・猪上淳
    • Organizer
      日本気象学会2017年度秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] ベーリング海・チュクチ海における海上風収束と海表面温度との関係2017

    • Author(s)
      川合義美
    • Organizer
      日本海洋学会2017年度秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 四次元変分法データ統合システムを用いた全球長期海洋環境の再現2017

    • Author(s)
      増田周平・長船哲史・杉浦望実・土居知将・邉見忠
    • Organizer
      平成28年度地球シミュレータ利用報告会
    • Related Report
      2017 Research-status Report
  • [Presentation] Relationship between the Bering Strait throughflow and salinity in the Bering Sea in an atmosphere-ocean-ice coupled model2016

    • Author(s)
      Kawai, Y., S. Osafune, S. Masuda, and Y. Komuro
    • Organizer
      2016 AGU Fall Meeting
    • Place of Presentation
      San Francisco (U.S.A.)
    • Year and Date
      2016-12-15
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 晩冬期における亜寒帯水温前線に対する大気下層の応答2016

    • Author(s)
      川合義美・西川はつみ・立花義裕・岡英太郎
    • Organizer
      日本海洋学会2016年度秋季大会
    • Place of Presentation
      鹿児島大学(鹿児島県鹿児島市)
    • Year and Date
      2016-09-13
    • Related Report
      2016 Research-status Report
  • [Presentation] Ocean heat content and sea level changes from an improved ocean state estimation2016

    • Author(s)
      Masuda, S., S. Osafune, N. Sugiura, and T. Doi
    • Organizer
      AOGS 13th Annual Meeting
    • Place of Presentation
      Beijing (China)
    • Year and Date
      2016-08-03
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi