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

Geoscience Efforts Reusing Japan Sea Telecom-Cable (JASC) -Development of a Trilateral Cooperation among Japan, USA and Russia-

Research Project

Project/Area Number 07044069
Research Category

Grant-in-Aid for international Scientific Research

Allocation TypeSingle-year Grants
SectionJoint Research
Research InstitutionUniversity of Tokyo

Principal Investigator

KANAZAWA Toshihiko  Earthquake Research Institute, University of Tokyo, Professor, 地震研究所, 教授 (30114698)

Co-Investigator(Kenkyū-buntansha) VANYAN Leonid  Shirshov Institute of Oceanography, Russian Academy of Sciences, Shirshov海洋研究所, 教授
MEDZHITOV Renat  Pacific Oceanographic Institute, Russian Academy of Sciences, 太平洋海洋研究所, 教授
YURASOV Gennady  Pacific Oceanographic Institute, Russian Academy of Sciences, 太平洋海洋研究所, 教授
LARSEN Jimmy  Pacific Marine Environmental Laboratory, NOAA, 太平洋海洋環境研究所, 主任研究員
CHAVE Alan  Woods Hole Oceanographic Institution, 主任研究員
RIKIISHI Kunio  Department of Earth Sciences, Hirosaki University, 理学部, 教授 (70038561)
HASHIMOTO Yoshio  Research Institute for Applied Mechanics, Kyushu University, 応用力学研究所, 助教授 (80180842)
KAWATATE Kazuo  Research Institute for Applied Mechanics, Kyushu University, 応用力学研究所, 教授 (40038534)
SHIMAMURA Hideki  Laboratoryy for Ocean Bottom Seismology, Hokkaido University, 理学部, 教授 (10011636)
TAIRA Keisuke  Ocean Research Institute, University of Tokyo, 海洋研究所, 教授 (50013579)
YAMANO Makoto  Earthquake Research Institute, University of Tokyo, 地震研究所, 助教授 (60191368)
UTADA Hisashi  Earthquake Research Institute, University of Tokyo, 地震研究所, 助教授 (70134632)
KASAHARA Junzo  Earthquake Research Institute, University of Tokyo, 地震研究所, 教授 (70012953)
VON Huene Ro  GEOMAR研究所, 教授
TALWANIR Man  Rice大学, 教授
DUNNEBIER Fr  Hawaii大学, 教授
MOORE Casey  California大学, Santa Cruz校, 教授
KASTNER Miri  California大学, Scripps海洋研究所, 教授
HILDEBRAND J  California大学, Scripps海洋研究所, 教授
CHACE Alan  Woods Hole海洋研究所, 教授
OSTROVSKII A  九州大学, 応用力学研究所, 助教授 (70243962)
尹 宗煥  九州大学, 応用力学研究所, 助教授 (80111459)
竹松 正樹  九州大学, 応用力学研究所, 教授 (50038535)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥9,200,000 (Direct Cost: ¥9,200,000)
Fiscal Year 1996: ¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 1995: ¥5,900,000 (Direct Cost: ¥5,900,000)
Keywordssubmarine communication cable / Japan Sea / data transmission / electic potential measurement / electrical conductivity structure / ocean bottom seismometer / ocean current / 電位差観測 / 電気伝導度 / 海洋物理
Research Abstract

Japan Sea Cable (JASC), a submarine telecommunication cable across the Japan Sea, retired in 1995 and was transferred to the Earthquake Research Institute, University of Tokyo and the Russian Academy of Sciences for scientific reuse.
In January, 1996, we installed a voltage monitoring system at Nakhodka cable station (Russian end of the JASC) and started to measure the voltage between the Russian and Japanese coasts across the Japan Sea. We will analyze the voltage data together with the geomagnetic field data on land in order to estimation the electrical conductivity structure beneath the Japan Sea. The voltage data will give useful information on the water mass transport across the JASC as well.
We have been measuring the electric potential difference for the cables between Hamada and Pusan and across the Tsugaru Strait. The data were analyzed with oceanographic data such as sea level and current meter measurements. It was found that the voltage variations are correlated well with the surface currents and the volume transports. We also started to measure the voltage between Kyushu and Iki island in October, 1996.
In the future, we expect to install geophysical observatories on the bottom of the Japan Sea and to monitor the data in real-time through the JASC.We have actually developed a submarine cable OBS (ocean bottom seismometer) and deployed it on the landward slope of the Izu-Bonin Trench in January, 1997. The OBS was connected to a cable between Ninomiya and Guam. It is working properly and we can monitor the data at Ninomiya cable station. This successful experiment demonstrated that technology for a submarine cable geophysical station has been established.
Japanese and Russian scientists visited each other to discuss how to conduct cooperative works using the JASC in geomagnetic, oceanographic, and seismic studies. We also participated international meetings and held international workshops for general discussions on scientific use of submarine cables.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (63 results)

All Other

All Publications (63 results)

  • [Publications] J.kasahara et al.: "GeO-TOC Project-Reuse of submarine cables for seismic and geoelectrical measurements" J.Phys.Earth. 43. 619-628 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] I.Fujii et al.: "Geolectric power spectra over oceanic distances" Geophys.Res.Lett.22. 421-424 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] A.G.Ostrovskii: "Signatures of stirring and mixing in the Japan Seasurface temperature patterns in autumn 1993 and spring 1994" Geophys.Res.Lett.22. 2357-2360 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Y.H.Seung and J.-H.Yoon: "Some features about winter convection in the Japan Sea" J.of Oceanography. 51・1. 61-73 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Y.H.Seung and J.-H.Yoon: "Robust Diagnostic Modeling of the Japan Sea Circulation" J.of Oceanography. 51・4. 421-440 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] C.-H.Kim and J.-H.Yoon: "Modeling of the wind-driven circulation in the Japan Sea using a reduced gravity model" J.of Oceanography. 52・3. 359-373 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N.Hirose et al.: "Heat Budget in the Japan Sea" J.of Oceanography. 52・3. 553-574 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Shinozaki et al.: "Time variations of the current northwest of Tsushima" Lamer. 34. 163-171 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 竹松正樹 他: "日本海の水と物質循環の研究,「大気海洋間における物質・熱・運動量の交換過程の計測法の開発研究(第1報)」" 九州大学応用力学研究所所報. 第80号. 39-47 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 笠原順三: "GeO-TOC計画における観測計画" 月刊海洋. 28・4. 197-201 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 笠原順三・佐藤利典: "VENUS計画の概要と広帯域地震観測" 月刊海洋. 28・4. 213-218 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 尹宗煥: "日本海の循環の予報の可能性" 月刊海洋. 29・1. 44-49 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 力石國男 他: "海底ケーブルの利用による津軽海峡の海潮流のモニタリング" 海洋観測国際協同研究計画(GOOS)ニュースレター. No.2. 143-151 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 力石國男 他: "津軽海峡の海潮流のモニタリング" 海洋観測国際協同研究計画(GOOS)ニュースレター. No.3. 196-201 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] M.Takematsu et al.: "Moored instrument observations in the Japan Sea proper water" Proceedings of the 4th CREAMS International Workshop,Vladivostok,Russia,February,1996. (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] H.Hase et al.: "The measurement of the southwestward subsurface countercurrent off the Wakasa Bay" Proceedings of the 4th CREAMS International Workshop,Vladivostok,Russia,February,1996. (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N.Hirose and J.-H.Yoon: "The barotropic response to the wind in the Japan Sea" Proceedings of the 4th CREAMS International Workshop,Vladivostok,Russia,February,1996. (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] C.-H.Kim et al.: "On the deep circulation simulated in the numerical model of the Japan Sea" Proceedings of the 4th CREAMS International Workshop,Vladivostok,Russia,February,1996. (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] B.H.Choi et al.: "Submarine cable voltage measurement between Pusan and Hamada for the years 1987-1995" Proceedings of the International Workshop on Scientific Use of Submarine Cables,Okinawa,Japan,February,1997. (印刷中). (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] A.Tashiro et al.: "A measurement of cable voltage between Nogita and Ashibe" Proceedings of the International Workshop on Scientific Use of Submarine Cables,Okinawa,Japan,February,1997. (印刷中). (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] J.Kasahara et al.: "A submarine cable OBS by use of the retired submarine telecommunication cable:GeO-TOC program" Proceedings of the International Workshop on Scientific Use of Submarine Cables,Okinawa,Japan,February,1997. (印刷中. (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] H.Shimizu et al.: "Observation of short-term seular variations in the geoelectric field by using a submarine cable network" Proceedings of the International Workshop on Scientific Use of Submarine Cables,Okinawa,Japan,February,1997. (印刷中). (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] J.Kasahara et al.: "Reuse of submarine Japan Cable(JASC) for Japan Sea monitoring(future plan)" Proceedings of the International Workshop on Scientific Use of Submarine Cables,Okinawa,Japan,February,1997. (印刷中). (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N.Palshin et al.: "Numerical modeling of the motionally induced electrical field for the Sea of Japan" Proceedings of the International Workshop on Scientific Use of Submarine Cables,Okinawa,Japan,February,1997. (印刷中). (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] J.Kasahara et al.: "GeO-TOC Project -Reuse of submarine cables for seismic and geoelectrical measurements" J.Phys.Earth. 43. 619-628 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] I.Fujii et al.: "Geolectric power spectra over oceanic distances" Geophys.Res.Lett.22. 421-424 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] A.G.Ostrovskii: "Signatures of stirring and mixing in the Japan Sea surface temperature patterns in autumn 1993 and spring 1994" Geophys.Res.Lett.22. 2357-2360 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Y.H.Seung and J.-H.Yoon: "Some features about winter convection in the Japan Sea" J.of Oceanography. 51. 61-73 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Y.H.Seung and J.-H.Yoon: "Robust Diagnostic Modeling of the Japan Sea Circulation" J.of Oceanography. 51. 421-440 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] C.-H.Kim and J.-H.Yoon: "Modeling of the wind-driven circulation in the Japan Sea using a reduced gravity model" J.of Oceanography. 52. 359-373 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N.Hirose et al.: "Heat Budget in the Japan Sea" J.of Oceanography. 52. 553-574 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Shinozaki et al.: "Time variations of the current northwest of Tsushima" La mer. 34. 163-171 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] M.Takemastu et al.: "The study of the circulation of the water and material in the Japan Sea : The developement of the measuring method of the exhange process of material, heatand momentum between atmosphere and ocean (in Japanese)" Bulletin of Research Institute for Applied Mechanics. 80. 39-47 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] J.Kasahara: "Geophysical observation for GeO-TOC project (in Japanese)" Kaiyo Monthly. 28. 197-201 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] J.Kasahara and T.Sato: "Overview of VENUS projct and broad band seismic observation in VENUS project (in Japanese)" Kaiyo Monthly. 28. 213-218 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] J.-H.Yoon: "The possibility of the prediction of the Japan Sea circulation (in Japanese)" Kaiyo Monthly. 29. 44-49 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Rikiishi et al.: "Monitoring the tidal and ocean currents of the Tsugaru Strait by using a submarine cable (in Japanese)" International Cooperative Research programe on Global Ocean Observing System, News letter. No.2. 143-151 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Rikiishi et al.: "Monitoring the tidal and ocean currents of the Tsugaru Strait" International Cooperative Research programe on Global Ocean Observing System, News letter. No.3. 196-201 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] M.Takematsu et al.: "Moored instrument observations in the Japan Sea proper water" Proceedings of the 4th CREAMS International Workshop, Vladivostok, Russia, Feb., 1996. (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] H.Hase et al.: "The measurement of the southwestward subsurface countercurrent off the Wakasa Bay" Proceedings of the 4th CREAMS International Workshop, Vladivostok, Russia, Feb., 1996. (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N.Hirose and J.-H.Yoon: "The barotropic response to the wind in the Japan Sea" Proceedings of the 4th CREAMS International Workshop, Vladivostok, Russia, Feb., 1996. (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] C.-H.Kim et al.: "On the deep circulation simulated in the numerical model of the Japan Sea" Proceedings of the 4th CREAMS International Workshop, Vladivostok, Russia, Feb., 1996. (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] B.H.Choi et al.: "Submarine cable voltage measurement between Pusan and Hamada for the years 1987-1995" Proc.Int.Workshop on Scientific Use of Submarine Cables, Okinawa, Japan, Feb., 1997. (in press). (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] A.Tashiro et al.: "A measurement of cable voltage between Nogita and Ashibe" Proc.Int.Workshop on Scientific Use of Submarine Cables, Okinawa, Japan, Feb., 1997. (in press). (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] J.Kasahara et al.: "A submarine cable OBS by use of the retired submarine telecommunication cable : GeO-TOC program" Proc.Int.Workshop on Scientific Use of Submarine Cables, Okinawa, Japan, Feb., 1997. (in press). (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] H.Shimizuu et al.: "Observation of short-term secular variations in the geoelectric field by using a submarine cable network" Proc.Int.Workshop on Scientific Use of Submarine Cables, Okinawa, Japan, Feb., 1997. (in press). (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] J.Kasahara et al.: "Reuse of submarine Japan Cable (JASC) for Japan Sea monitoring (future plan)" Proc.Int.Workshop on Scientific Use of Submarine Cables, Okinawa, Japan, Feb., 1997. (in press). (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N.Palshin et al.: "Numerical modeling of the motionally induced electriacal field for the Sea of Japan" Proc.Int.Workshop on Scientific Use of Submarine Cables, Okinawa, Japan, Feb., 1997. (in press). (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Shinozaki et al.: "Time variations of the current northwest of Tsushima" La mer. 34. 163-171 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 笠原順三: "GeO-TOC計画における観測計画" 月刊海洋. 28・4. 197-201 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 笠原順三・佐藤利典: "VENUS計画の概要と広帯域地震観測" 月刊海洋. 28・4. 213-218 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 力石國男 他: "津軽海峡の海潮流のモニタリング" 海洋観測国際協同研究計画(GOOS)ニュースレター. No.3. 196-201 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] B.H.Choi et al.: "Submarine cable voltage measurement between Pusan and Hamada for the years 1987-1995" Proceedings of the International Workshop on Scientific Use of Submarine Cables,Okinawa,Japan,February,1997. (印刷中). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] H.Shimizu et al.: "Observation of short-term secular variations in the geoelectric field by using a submarine cable network" Proceedings of the International Workshop on Scientific Use of Submarine Cables,Okinawa,Japan,February,199722GD06:(印刷中). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] J.Kasahara et al.: "A submarine cable OBS by use of the retired submarine telecommunication cable : GeO-TOC program" Proceedings of the International Workshop on Scientific Use of Submarine Cables,Okinawa,Japan,February,199722GD07:(印刷中). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] N.Palshin et al.: "Numerical modeling of the motionally induced electriacal field for the Sea of Japan" Proceedings of the International Workshop on Scientific Use of Submarine Cables,Okinawa,Japan,February,199722GD08:(印刷中). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] J.Kasahara et al.: "Reuse of submarine Japan Cable (JASC) for Japan Sea monitoring (future plan)" Proceedings of the International Workshop on Scientific Use of Submarine Cables,Okinawa,Japan,February,199722GD09:(印刷中). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] J.Kasahara: "GeO-TOC project-Reuse of submarine cables for seismic and geoelectric measurements" J.Phys.Earth. 43. 619-628 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 笠原順三: "VENUS計画の概要と広帯域地震観測" 月刊海洋. 28(印刷中). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] I.Fijii,H.Utada 他: "Geoelectric power spectra over oceanic distances" Geophys.Res.Lett.22. 421-424 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] T.H.Seung and J.-H.Yoon: "Robust diagnostic modeling of the Japan Sea circulation" J.of Oceanography. 51. 421-440 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] M.Takematu: "Moored instrument observations in the Japan Sea proper water" Proc.4th CREAMS Workshop. (印刷中). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] A.G.Ostrovskii: "Signatures of stirring and mixing in the Japan Sea surface temperature patterns in autumn 1993 and spring 1994" Geophys.Res.Lett.22. 2357-2360 (1995)

    • Related Report
      1995 Annual Research Report

URL: 

Published: 1995-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi