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Research on a systematic analysis of information on GPS array data

Research Project

Project/Area Number 12680322
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Statistical science
Research InstitutionThe Institute of Statistical Mathematics

Principal Investigator

HIGUCHI Tomoyuki  The Institute of Statistical Mathematics, Associate Professor, 予測制御研究系, 助教授 (70202273)

Co-Investigator(Kenkyū-buntansha) SATO Seisho  The Institute of Statistical Mathematics, Assistant Professor, 予測制御研究系, 助手 (60280525)
Project Period (FY) 2000 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2001: ¥1,400,000 (Direct Cost: ¥1,400,000)
Keywordsautomatic smoothing / Bayesian modeling / time-spatial model / GPS data / PWV / micro wave propagation delay / AMeDas / seasonal variation / マイクロ波遅延 / hydrostatic delay / 超大量データ / 電離層 / 逐次交互探索 / 超パラメータ
Research Abstract

We analyzed GPS data at 1,000 stations covering all over Japan for two years frorn 1996 through 1997. Specifically, an detailed investigation on data sets in terrns of data quality limited us to use 614 data points among them. We performed a Bayesian smoothing procedure in time-spatial domain which allows us to extract the mean structure automatically, and tried to model the mean structure based on the result obtained. Actually, we applied the non-parametric smoothing based on the Bayesian approach and conducted the residual analysis alternatively in each of time- and spatial domains. Finally we decomposed the variations of GPS data for each station into three components : time-dependent, spatial-dependent, and other components. We presented the result at the international meeting, and obtain the positive response from the attendants.

Report

(3 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • Research Products

    (13 results)

All Other

All Publications (13 results)

  • [Publications] T.Higuchi, S.-I.Ohtani, T.Uozumi, K.Yumoto: "Pi2 onset time determination with information criterion"Pi2 onset time determination with information criterion. (印刷中). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.Nagao, T.Iyemori, T.Higuchi, S.Nagano, T.Araki: "Local Time Features of Geomagnetic Jerks"Earth Planets and Space. 54. 119-131 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Hiromichi Nagao, Tomoyuki Higuchi, Toshihiko Iyemori, Tohru Araki: "Automatic Detection of Geomagnetic Jerks by Applying a Statistical Time Series Model to Geomagnetic Monthly Means"Progresses in Discovery Science, Lecture Notes in Computer Science. 2281. 364-375 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Higuchi, S.-I.Ohtani, _T. Uozumi, and K.Yumoto: "Pi2 onset time determination with information criterion"Journal of Geophysical Research. (to appear). (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] h.Nagoao, T.Iyemori, T.Higuchi, S.Nagano, and T.Araki: "Local Time Features of Geomagnetic Jerks"Earth Planets and Space. 54. 119-131 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.Ngao, T.Higuchi, T.Iyemori, and T.Araki: "Automatic Detection of Geomagnetic Jerks by Applying a Statistical Time Series Model to Geomagnetic Monthly Means"Progresses I Discovery Science, Lecture Notes in Computer Science. 2281. 364-375 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Higuchi, S.I.Ohtani, T.Uozumi, K.Yumoto: "Pi2 onset time determination with information criterion"Journal of Geophysical Research. (印刷中). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Nagao, T.Iyemori, T.Higuchi, S.Nagano, T.Araki: "Local Time Features of Geomagnetic Jerks"Earth Planets and Space. 54. 119-131 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Hiromichi Nagao, Tomoyuki Higuchi, Toshihiko Iyemori, Tohru Araki: "Automatic Detection of Geomagnetic Jerks by Applying a Statistical Time Series Model to Geomagnetic Monthly Means"Progresses in Discovery Science, Lecture Notes in Computer Science. 2281. 362-373 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] S.Ohtani,T.Higuchi,T.Sotirelis,and P.T.Newell: "Disappearance of Large-scale Field-aligned Current Systems : Implication to the Solar Wind-Magnetosphere Coupling"AGU Geophysical Monograph Series : Magnetospheric Current Systems. 118. 253-259 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] S.Ohtani,and T.Higuchi: "Four-Sheet Structures of Dayside Field-Aligned Cuurents : Statistical Study"Journal of Geophysical Research. 105・A11. 25317-25324 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Tomoyuki Higuchi: "Automatic and Accurate Determination of the Onset Time of the Quasi-periodic Oscillation"The proceedings of The Third International Conference on Discovery Science. AI series・1967. 242-246 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 樋口知之: "準周期的波動現象開始時刻の精密自動同定"人工知能学会 SIG-FAI-A001. A001・14. 73-76 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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