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Studies on the Structure of Currents in the Tsushima/Korea Strait

Research Project

Project/Area Number 63044106
Research Category

Grant-in-Aid for international Scientific Research

Allocation TypeSingle-year Grants
SectionJoint Research
Research InstitutionKyushu University

Principal Investigator

MITSUYASU Hisashi  Res. Inst. Appl. Mech. , Kyushu Univ., 応用力学研究所, 教授 (30038533)

光昜 恒 (1990)  九州大学, 応用力学研究所, 教授

Co-Investigator(Kenkyū-buntansha) KIM Kuh  Seoul National Univ., 教授
崔 秉昊  サンキュンクァン大学, 教授
ANN Hi-Do  Korea Ocean Research and Development Institute, 室長
張 善徳  国立釜山水産大学, 教授
李 興宰  韓国海洋研究所, 部長
〓 相慶  韓国海洋研究所, 室長
OUCHI Yasunori  Fukuoka Prefectural Fisheries Experimental Station, 研究一課長
朴 炳權  韓国海洋研究所, 所長
HANZAWA Yoichi  Nagasaki Marine Observatory, 海洋課長
ISOBE Atsuhiko  Shimonoseki. Univ. of Fisheries, 助手
TAWARA Satoru  Shimonoseki Univ. of Fisheries, 教授
尹 宗煥  九州大学, 応用力学研究所, 助教授 (80111459)
MIZUNO Shinjiro  Res. Inst. Appl. Mech. , Kyushu Univ., 応用力学研究所, 助教授 (80033835)
KANEKO Arata  Inter. Grad. School of Eng. Sci. , Kyushu Univ., 総合理工学研究科, 助教授 (10038101)
KOTERAYAMA Wataru  Res. Inst. Appl. Mech. , Kyushu Univ., 応用力学研究所, 教授 (80038562)
HONJI Hiroyuki  Inter. Grad. School of Eng. Sci. , Kyushu Univ., 総合理工学研究科, 教授 (80038538)
TAKEMATSU Masaki  Res. Inst. Appl. Mech. , Kyushu Univ., 応用力学研究所, 教授 (50038535)
KAWATATE Kazuo  Res. Inst. Appl. Mech. , Kyushu Univ., 応用力学研究所, 教授 (40038534)
YOON Jong-Hwan  Res. Inst. Appl. Mech. , Kyushu Univ.
CHANG Sun-Duck  National Fisheries Univ. of Pusan
CHOI Byung-Ho  Sung Kyun Kwan Univ.
PARK Byong-Kwon  Korea Ocean Research and Development Institute
LIE Heung-Jae  Korea Ocean Research and Development Institute
BYUN Sang-Kyung  Korea Ocean Research and Development Institute
Project Period (FY) 1988 – 1990
Project Status Completed (Fiscal Year 1990)
Budget Amount *help
¥7,500,000 (Direct Cost: ¥7,500,000)
Fiscal Year 1990: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1989: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1988: ¥2,500,000 (Direct Cost: ¥2,500,000)
KeywordsTsushima / Korea Strait / Tsushima Warm Current / Japan Sea / Current observation / Acoustic Doppler current profiler / Moored Current meter / Submarine cable
Research Abstract

The Japanese climate and the fishing grounds in the Japan Sea are greatly controlled by the variability of currents in the Tsushima/Korea Strait. In this study, currents in the Tsushima Strait have been extensively measured by means of the towed ADCP, moored current meters and submarine cable in cooperation with Japan and Korea. The main results are summarized as follows :
(1) The volume transport of the Tsushima Current in September was 1.7Sv (1Sv=1x10^6m^3/s) for the western channel and 0.6Sv for the eastern channel.
(2) The bottom water around the Tsushima Trough flowed in the opposite direction to the Tsushima Current. It is concluded that this bottom water is originated from the Japan Sea Proper Water.
(3) The harmonic constants of tide in the observation site were determined from the results of the repeated ADCP surveys. The tidal component included in the raw ADCP data was successfully detected using the harmonic constants.
(4) The moored current meter data showed that the Tsushima Current, semidiurnal tidal current and diurnal tidal current coexist with the same magnitude in the eastern channel of the Tsushima Strait.
(5) It was found that the electric voltage in the submarine cable connectiing Hamada and Pusan changes in parallel with the variation of the overlying Tsushima Current. The submarine cable may be a powerful tool to monitor the volume transport of the Tsushima Current over a long period.
The successive cooperation between Japan and Korea is now recommended to make a further progress on the oceanographic research of the Tsushima Strait and its adjacent seas.

Report

(1 results)
  • 1990 Final Research Report Summary

Research Products

(12 results)

All Other

All Publications (12 results)

  • [Publications] 光易 恒: "対馬暖流の解明をめざして" 学術月報. 43. 6-15 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 金子 新: "対馬海峡における海流の構造と流量" 海岸工学論文集. 37. 784-788 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 光易 恒: "大気海洋間の運動量交換について" 号外海洋. 3. 10-16 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Arata KANEKO: "An observation of sectional velocity structures and transport of the Tsushima Warm Current across the Korea Stroit" Proc.5th JECSS Workshop. (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Wataru KOTERAYAMA: "A new ocean measurement system using ADCP on a towed vehicle" Proc.5th JECSS Workshop. (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 磯辺 篤彦: "対馬西水道における海流の構造について" 九州大学総合理工学研究科報告. 12. (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hisashi MITSUYASU: "Studies on Ocean current structure in the Tsushima/Korea Strait" Japanese Scientific Monthly. 43. 6-15 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Arata KANEKO: "Structure and transport of ocean currents in the Tsushima Strait" Proc Coastal Eng. , JSCE. 37. 784-788 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hisashi MITSUYASU: "On the momentum exchange between atmosphere and ocean" Kaiyo Extra. 3. 10-16 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Arata KANEKO: "An observation of sectional velocity structures and transport of the Tsushima Warm Current across the Korea Strait" Proc. 5th JECSS Workshop. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Wataru KOTERAYAMA: "A new ocean measurement system using ADCP on a towed vehicle" Proc. 5th JECSS Workshop. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Atsuhiko ISOBE: "On the current structures in the western channel of the Tsushima/Korea Strait -From the result of the ADCP surveys in September 1989-" Eng. Sci. Rep. , Kyushu Univ.(1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary

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Published: 1988-04-01   Modified: 2016-04-21  

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