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Studies on global gravity changes by means of absolute gravity measurements at the GGP-JAPAN superconducting gravity stations.

Research Project

Project/Area Number 14340132
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 固体地球物理学
Research InstitutionKyoto University

Principal Investigator

FUKUDA Yoichi  Kyoto University, Graduate School of Science, Associate Professor, 大学院・理学研究科, 助教授 (30133854)

Co-Investigator(Kenkyū-buntansha) TAKEMOTO Shuzo  Kyoto University, Graduate School of Science, Professor, 大学院・理学研究科, 教授 (40027256)
HIGASHI Toshihiro  Kyoto University, Graduate School of Science, Assistant Professor, 大学院・理学研究科, 助手 (90135517)
SATO Tadahiro  National Astronomical Observatory, Associate Professor, 地球回転系, 助教授 (10000176)
IMANISHI Yuichi  University of Tokyo, Ocean Research Institute, Assistant Professor, 海洋研究所, 助手 (30260516)
DOI Koishiro  Polar Research Institute, Associate Professor, 南極圏環境モニタリング研究センター, 助教授 (80290873)
Project Period (FY) 2002 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥16,600,000 (Direct Cost: ¥16,600,000)
Fiscal Year 2004: ¥5,400,000 (Direct Cost: ¥5,400,000)
Fiscal Year 2003: ¥4,100,000 (Direct Cost: ¥4,100,000)
Fiscal Year 2002: ¥7,100,000 (Direct Cost: ¥7,100,000)
KeywordsAbsolute Gravimeter / Superconducting Gravimeter / GGP / Gravity Changes / Satellite Gravimetry / Gravity Base Station
Research Abstract

The goal of this study is to determine calibration factors of superconducting gravimeters of the GGP(Global Geodynamic project)-Japan stations, and to obtain precise gravity data sets, which can be used for the comparison with the satellite gravity data such as GRACE, by means of absolute gravity measurements.
For this purpose, we conducted absolute gravity measurements by our own hand at the GGP-Japan sites of Bandung (Indonesia) in 2002, Syowa Station (Antarctica) in 2003 and Canberra (Australia) in 2004, in addition to the GGP-Japan domestic sites of Kyoto, Esashi and Matsushiro. Absolute gravity measurements at Ny-Alesund, the other GGP-Japan site in Arctic area, were also conducted in cooperation with European researchers. Moreover, we conducted additional absolute measurements in Yogyakarta and Tibinon (Indonesia), and in Perth (Australia) for future references of secular gravity changes.
As the results of this study, besides the originally intended outcome, namely the determination of the calibration factors of the superconducting gravimeters at the GGP-Japan sites, we established several absolute gravity stations for detecting future gravity changes. Especially the absolute gravity measurement conducted by this research was the first one in the history of Indonesia, and it also played a big role to enhance the gravity reference network in Indonesia.
On the other hand, from the viewpoint of the secular gravity changes, we detected the gravity change expected from the postglacial rebound in Syowa Station, and we also succeeded in detecting the gravity change associated with present day ice melting in Ny-Alesund.

Report

(4 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (14 results)

All 2004 2003 Other

All Journal Article (12 results) Publications (2 results)

  • [Journal Article] A Network of Superconducting Gravimeters Detects Submicrogal Coseismic Gravity Changes2004

    • Author(s)
      Imanishi, Y., T.Sato, T.Higashi, W.Sun, S.Okubo
    • Journal Title

      Science 306

      Pages: 476-478

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Parameters of the fluid core resonance inferred from superconducting gravimeter data2004

    • Author(s)
      Sato T., Y.Tamura, K.Matsumoto, Y.Imanishi, H.McQueen
    • Journal Title

      Journal of Geodynamics 38

      Pages: 375-389

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] The first absolute gravity measurements in Indonesia2004

    • Author(s)
      Fukuda, Y., T.Higashi, S.Takemoto, et al.
    • Journal Title

      Journal of Geodynamics 38

      Pages: 477-488

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Superconducting gravimeter observations without a tilt compensation system2004

    • Author(s)
      Iwao, S., Y.Fukuda
    • Journal Title

      Physics of the Earth and Planetary Interiors 147

      Pages: 343-351

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 南極における超伝導重力計の設置とその除震及び監視技術の開発2004

    • Author(s)
      池田博, 土井浩一郎, 福田洋一, 他
    • Journal Title

      低温工学 39

      Pages: 348-353

    • NAID

      10013169674

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] A Network of Superconducting Gravimeters Detects Submicrogal Coseismic Gravity Changes2004

    • Author(s)
      Imanishi, Y., T.Sato, T.Higashi, W.Sun, S.Okubo
    • Journal Title

      Science Vol.306

      Pages: 476-478

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] The first absolute gravity measurements in Indonesia2004

    • Author(s)
      Fukuda.Y., T.Higashi, S.Takemoto, et al.
    • Journal Title

      Journal of Geodynamics 38

      Pages: 477-488

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Superconducting gravimeter observations without a tilt compensation system2004

    • Author(s)
      Iwano, S., Y.Fukuda
    • Journal Title

      PEPI 147

      Pages: 343-345

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Installation of a superconducting gravimeter in Antarctica and development of its vibration-isolating mechanism and remote monitoring system2004

    • Author(s)
      Ikeda, H., K.Doi, Y.Fukuda, et al.
    • Journal Title

      J.Cryo.Soc.Jpn 39(8)

      Pages: 348-353

    • NAID

      10013169674

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Superconducting gravimeter observations without a tilt compensation system2004

    • Author(s)
      Iwano, S., Y.Fukuda
    • Journal Title

      Physics of the Earth and Planetary Interiors 147

      Pages: 343-351

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Calibration of the superconducting gravimeter TT70 #016 at Syowa Station by parallel observation with the absolute gravimeter FG5 #2032003

    • Author(s)
      Iwao, S., I.Kimura, Y.Fukuda
    • Journal Title

      Polar Geoscience 16

      Pages: 22-28

    • NAID

      80016339435

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Calibration of the superconducting gravimeter TT70 #016 at Syowa Station by parallel observation with the absolute gravimeter FG5 #2032003

    • Author(s)
      Iwano, S., I.Kimura, Y.Fukuda
    • Journal Title

      Polar Geoscience 16

      Pages: 22-28

    • NAID

      80016339435

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Publications] Y.Fukuda: "Impact of satellite gravity missions on glaciology and Antarctic Earth sciences"Polar Meteorology and Glaciology. 16. 32-41 (2002)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Higashi: "Determination of Absolute Gravity Values using a FG5#210 in Bandung and Yogyakarta, Indonesia"Journal of the Geodetic Society of Japan. 49. 177-180 (2003)

    • Related Report
      2003 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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