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Geodetic VLBI experiments between southern-hemisphere network and Japanese islands

Research Project

Project/Area Number 10640413
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 固体地球物理学
Research InstitutionNational Astronomical Observatory

Principal Investigator

TAMURA Yoshiaki  National Astronomical Observatory Division of Earth Rotation Research Fellow, 地球回転研究系, 助手 (90150002)

Co-Investigator(Kenkyū-buntansha) HEKI Kosuke  National Astronomical Observatory Division of Earth Rotation Associ-Professor, 地球回転研究系, 助教授 (30280564)
MANABE Seiji  National Astronomical Observatory Division of Earth Rotation Associ-Professor, 地球回転研究系, 助教授 (30000178)
YOKOYAMA Koichi  National Astronomical Observatory Division of Earth Rotation Professor, 地球回転研究系, 教授 (10088784)
DOI Koichiro  National Institute of Polar Research, Center for Antarctic Environmental Monitoring Research Fellow, 南極圏環境モニタリングセンター, 助手 (80290873)
Project Period (FY) 1998 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2000: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1999: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1998: ¥2,500,000 (Direct Cost: ¥2,500,000)
KeywordsVLBI / Reference Frame / Antarctic Plate / Correlator / K4 System / S2 System
Research Abstract

This study is carried out for the purpose to measure the motion of the Antarctic plate, in which geodetic observation sites are rare, by performing the VLBI experiments between southern-hemisphere VLBI network including Syowa Station, Antarctica. Technical improvement are also studied. Sampling rate of 10m Antenna at the National Astronomical Observatory (NAO). Mizusawa, is improved. Now 128Mbit/s sampling is available in the geodetic experiments instead of 64Mbit/s sampling. A major technical development is to be establish the compatibility between deferent VLBI system, The domestic VLBI stations and Syowa Station adopt so called K4-TSS system, while S2 system is used in oversea stations.
The VLBI experiments were carried out among Syowa Station (11m antenna). Kashima (26m antenna), Hobart (Tasmania Univ, , Australia). Hartebeesthoek (South Africa) and Parkse (CSIRO, Australia) in 1998-1999. Those experiment were supported by many institutes and many people, especially by The National Institute of Polar Research, Japan Antarctic Research Expedition (JARE) 39, and Geographical Institute of Japan. The observation data of oversea stations are converted from S2 system to K4 system, and then correlation process is carried at the correlation center at NAO.Correlation process is slightly modified for geodetic purpose because the correlator is originally designed for astrophysical purposes. We finally constructed database for tow baseline analyses. We enhanced the importance of Syowa Station as a geodetic observation site by carrying out global VLBI experiments at Syowa Station.

Report

(4 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (15 results)

All Other

All Publications (15 results)

  • [Publications] Jike,T.,Manabe,S.,Tamura,Y., 他: "VLBI Experiments at Syowa Station, Antarctica"Proc.Int. Workshop Geodetic Measurements by the Collocation of Space Techniques on Earth (GEMSTONE), APT and APSG, CRL Koganei. 150-156 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 日置幸介: "南極プレートの現在の動き"1998年3月25日の南極地震と南極プレートの進化に関する研究集会集録(極地研究所). (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 寺家孝明,真鍋盛二 他: "南極VLBI実験の解析について"1999年度VLBIシンポジウム集録(通信総合研究所鹿嶋). 28-31 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 真鍋盛二: "VERAの測地観測"1999年度宇宙電波懇談会シンポジウム「VERAで切り開く21世紀の天文学」. 24-27 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Jike, T., Tanaka, T., Shibuya, K., Manabe, S., Tamura, Y., Sato, K.-H., McCulloch, P., Costa, M., Nicolson, G., Quick, J.F.H., Shibata, K.M., Dot, K., Fukuzaki, Y, Jauncey, D.L., and Reynolds, J.: "VLBI Experiments at Syowa Station, Antarctica"Proc.Int.Workshop on Geodetic Measurements by the Collocation of Space Techniques on Earth. 150-156 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Heki, K.: "Present Motion of the Antarctic Plate (in Japanese)"Symposium on the March 25, 1998 Antarctic Earthquake and the Evolution of the Antarctic Plate (National Institute of Polar Research), 1999.. (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Jike, T., Shibuya, K., Manabe, S,, and Antarctic VLBI: "study Group, Analysis of Antarctic VLBI Experiments (in Japanese)"Proc.1999 VLBI Symposium (Communication Research Laboratory, Kashima). 28-31 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Manabe, S.: "Geodetic Observations on VERA (in Japanese)"Proc.1999 Space Radio Consortium Symposium -21 Century Astronomy Explored by VERA-. 24-27 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Jike,T.,Manabe,S.,Tamura,Y.,他: "VLBI Experiments at Syowa Station, Antarctica"Proc.Int.Workshop Geodetic Measurements by the Collocation of Space Techniques on Earth (GEMSTONE), APT and APSG, CRL Koganei. 150-156 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] 日置幸介: "南極プレートの現在の動き"1998年3月25日の南極地震と南極プレートの進化に関する研究集会集録(極地研究所). (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] 寺家孝明,真鍋盛二 他: "南極VLBI実験の解析について"1999年度VLBIシンポジウム集録(通信総合研究所鹿嶋). 28-31 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] 真鍋盛二: "VERAの測地観測"1999年度宇宙電波懇談会シンポジウム「VERAで切り開く21世紀の天文学」. 24-27 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 日置幸介: "南極プレートの現在の重さ"1998年3月25日の南極地震と南極プレートの進化に関する研究集会集録(極地研究所). (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 寺家孝明: "南極VLBI実験の解析について"1999年度VLBIシンポジウム集録(通信総研・鹿嶋). (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Jike, Manabe, Tamura 他: "VLBI Experiments at Syowa Station, Antarctica" Proc. Int. Workshop GEMSTONE, APT and APSG. (in press). (1999)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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