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A development of a new type artificial generation structure for upwelling currents in deep sea

Research Project

Project/Area Number 11792023
Research Category

Grant-in-Aid for University and Society Collaboration

Allocation TypeSingle-year Grants
Research Field General fisheries
Research InstitutionUniversity of the Ryukyus

Principal Investigator

NAKAZA Eizo  Faculty of Engineering, Civil Engineering and Architecture, Associate Professor, 工学部, 助教授 (90180265)

Co-Investigator(Kenkyū-buntansha) FUJII Satoshi  Okinawa communications research laboratory, Director and Senior researcher, 沖縄電波観測所, 主任研究員
IRAHA Sigeo  Faculty of Engineering, Civil Engineering and Architecture, Associate Professor, 工学部, 助教授 (30045025)
TSUKAYAMA Seikoh  Faculty of Engineering, Civil Engineering and Architecture, Professor, 工学部, 教授 (50044996)
KAWAMITSU Yasutomo  Coastal Environmental Engineering, Senior researcher, 主任研究員
KAKUMA Shinichi  Okinawa prefecture, Fishery and forestry, Senior researcher, 水産試験場, 主任研究員
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥9,200,000 (Direct Cost: ¥9,200,000)
Fiscal Year 2001: ¥9,200,000 (Direct Cost: ¥9,200,000)
KeywordsUpwelling current / Ocean current / Deep sea / Sea firm / Kuroshio / Tidal current / Thermocline / Inertia motion / 海浜 / 内部波 / 潮汐流 / 吹送流 / ADP / ADCP / 浮き漁礁 / 海洋牧場 / 深層水 / 深海 / 漁礁 / 海流 / 海水温
Research Abstract

This project has aimed to get wide and marvelous results in making new artificial upwelling structures and disclosing the current characteristics around the Okinawa shallow areas, having joint researches with a couple of the specific researches running in Okinawa.
In this project, four other main projects have been joined, that are i) development of a ultra-power HF Ocean Raider, ii) developing a measuring and wide-broadcasting system of ocean current around the floating fishery boy, iii) developing a new structural analysis tools with free mesh finite element method, iv) developing a wide area wave observation system in the ocean around South islands of Japan. All of these projects have been succeeded in getting their final aims.
In particular, this project has revealed the upwelling current around the self in Zanpa sea area of Okinawa. The main results obtained can be summarized as fellows :
1) The tidal current around the Zanpa cape sea is in the clockwise direction.
2) Clear thermoclines of the sea water temperature exist about 70m below from the sea surface.
3) On the self, the thermoclines oscillate in harmonic with the tidal current.
4) The upwelling flows around the Zanpa self can reach up to just below the sea surface.
5) From the results obtained here, it can be said that the structures proposed as the artificial upwelling producers can make well-developed upwelling around them.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report

Research Products

(36 results)

All Other

All Publications (36 results)

  • [Publications] 伊良波 繁雄: "沖縄県でのコンクリート構造物の耐久性調査と維持管理に関する研究"コンクリート工学年次論文報告集. Vol.23 No.1. 1177-1182 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 伊良波 繁雄: "海洋小動物の棲息を考慮した海岸構造物材料としてのポーラスコンクリートに関する研究"コンクリート工学年次論文報告集. Vol.23 No.3. 187-192 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 仲座 栄三: "非圧縮条件の中で非定常流解析は可能か?"琉球大学工学部紀要. 第62号. 15-20 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 仲座 栄三: "リーフ上伝承波の周期変化について-非線形分散波の成分波間エネルギー授受の観点から-"海岸工学論文集. 第47巻. 731-735 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 伸座 栄三: "弾性体及び流体に関する構成方程式と支配方程式の構築"琉球大学工学部紀要. 第61号. 37-46 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Nakaza E., S.Tsukayama, S.Iraha, S.Fujii and S.Kakuma: "Okinawan onshore sea current characteristic explored by acoustic"Doppler current meters, Bulletin of Faculty of Engineering, University of the Ryukyus. Vol.60. (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Shinishiro Kakuma: "Synthesis on moored FADs in the North West Pacific region"(2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Shnishiro Kakuma: "Current, catch and weight composition of yellowfin tuna with FADs off Okinawa Island, Japan"(2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Iraha S., J.Tomiyama, S.Waniya, J.Matsubara: "A development of concert structures for the habitats of coastal small animals"JCCI. Vol.23, No.1. (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Iraha S., M.Anwa, J.Toiyama, M.Yagawa: "Two-dimensional high accurate analysis of a stress in a solid"JSCC. Vol.23, No.1. (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] lraha S., J Tomiyama, S.Waniya: "A new accuracy stress analysis model using Hhybrid stress model"JSCC. Vol.22, No.3. (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 仲座 栄三: "Abnormal High Tides Induced by Surf-beats"27^<th> International Conference on Coastal Engineering. 27. 384-385 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] 仲座 栄三: "超音波流速計が捉えた沖縄沿岸の流れ特性"琉球大学工学部紀要. 第60号. 21-26 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] 仲座 栄三: "The Survival Crisis Faced by Coastal Ecosystems in Tropical and Subtropical Areas"9^<th> International coral reef symposium. 9. 171 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] 仲座 栄三: "リーフ上伝承波の周期変化について-非線形分散波の成分波間エネルギー授受の観点から-"海岸工学論文集. 第47巻. 731-735 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] 仲座 栄三: "非圧縮条件の中で非定常流解析は可能か?"琉球大学工学部紀要. 第62号. 15-20 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 仲座 栄三: "弾性体及び流体に関する構成方程式と支配方程式の構築"琉球大学工学部紀要. 第61号. 37-46 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Nadaoka K: "Sea-Surface Current Investigation Concerning Long-Distance Transport of Coral Planulae with HF Radar, Drifting Buoys and Numerical Simulations"9^<th> International coral reef symposium. 9. 237 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] 津嘉山 正光: "Wave Transformation on the Coral Reefs"27^<th> International Conference on Coastal Engineering. 27. 382-383 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] 津嘉山 正光: "Coral Bleaching on Okinawa in 1988:The Effects of Typhoons and Sea Temperature Changes from 1997-1999"9^<th> International coral reef symposium. 9. 380 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] 伊良波 繁雄: "ハイブリットストレスモデルによる断塑性解析法"コンクリート工学年次論文報告集. Vol.22. 115-120 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] 伊良波 繁雄: "デジタル画像処理を用いたフリーメッシュ法による二次元応力解析問題への適用"土木学会学術講演会講演概要集. 第55回. V551 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] 島袋 佳: "並列計算を用いたフリーメッシュ法によるコンクリートの引張破壊解析"コンクリート工学年次論文報告集. Vol.22No.3. 139-144 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] 伊良波 繁雄: "沖縄県でのコンクリート構造物の耐久性調査と維持管理に関する研究"コンクリート工学年次論文報告集. Vol.23 No.1. 1177-1182 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 伊良波 繁雄: "海洋小動物の棲息を考慮した海岸構造物材料としてのポーラスコンクリートに関する研究"コンクリート工学年次論文報告集. Vol.23 No.3. 187-192 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 鹿熊 信一郎: "A Water Temperature Monitoring Network Around The Ryukyu Islands Japan"9^<th> International coral reef symposium. 9. 375 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] 仲座栄三: "Abnormal High Tides Induced by Surf-beats"27^<th> Internationai Conference on Coastal Engineering. 27. 384-385 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 津嘉山正光: "Wave Transformation on the Coral Reefs"27^<th> Internationai Conference on Coastal Engineering. 27. 382-383 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 仲座栄三: "超音波流速計が捉えた沖縄沿岸の流れ特性"琉球大学工学部紀要 第60号,2000年. 21-26 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 仲座栄三: "流体力学の基礎方程式の完全形-Navier-Stokes運動方程式は誤りであった-"琉球大学工学部紀要 第60号,2000年. 27-35 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 仲座栄三: "The Survival Crisis Faced by Coastal Ecosystems in Tropical and Subtropical Areas."9^<th> International coral reef symposium.. 9. 171 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 津嘉山正光: "Coral Bleaching on Okinawa in 1988 : The Effects of Typhoons and Sea Temperature Changes from 1997-1999"9^<th> International coral reef symposium.. 9. 380 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 鹿熊信一郎: "A Water Temperature Monitoring Network Around The Ryukyu Islands, Japan."9^<th> International coral reef symposium.. 9. 375 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Nadaoka K: "Sea-Surface Current Investigation Concerning Long-Distance Transport of Coral Planulae with HF Rader, Drifting Buoys and Numrical Simulations."9^<th> International coral reef symposium.. 9. 237 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 仲座栄三: "リーフ上伝承波の周期変化について-非線形分散波の成分波間エネルギー授受の観点から-"海岸工学論文集. 第47巻. 731-735 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 仲座栄三: "侵食対策としての海岸整備に関する住民意識調査"海岸工学論文集. 第47巻. 1306-1310 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 2001-03-31   Modified: 2021-09-06  

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