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A practical study on an exploration technique using microtremors by spatial auto-correlation method

Research Project

Project/Area Number 08680479
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Natural disaster science
Research InstitutionIwate University

Principal Investigator

SAITO Tokumi  Iwate University, Faculty of Engineering, Proffesor, 工学部, 教授 (20113855)

Co-Investigator(Kenkyū-buntansha) YAMAMOTO Hidekazu  Iwate University, Faculty of Engineering, research assosiate, 工学部, 助手 (00250639)
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1997: ¥600,000 (Direct Cost: ¥600,000)
Keywordsmicrotremor array observation / phase velocities / spatial auto-correlation method / higher mode of surface waves / 微動探査法
Research Abstract

Spatial auto-correlation method, which is the method to determine phase velocities of surface waves in microtremors, has a potential to estimate deep structure with small seismometer array because the detectable range of wavelength by spatial auto-correlation method is larger than by frequency-wavenumber method. The following results were investigated for a practical use of spatial auto-correlation method.
1.Development of observation system using datalogger
2.Improvement of spatial auto-correlation method to determine phase velocities with high accuracy using auto-regressive model.
3.Discussion about seismometer array shape.
4.Comparison of detectable range of wavelength using spatial auto-correlation method or frequency-wavenumber method.
5.Improvement of spatial auto-correlation method to distinguish higher mode of surface waves in microtremors.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report

Research Products

(12 results)

All Other

All Publications (12 results)

  • [Publications] 山本 英和, 小渕 卓也, 斎藤 徳美: "微動アレイ探査における空間自己相関法の自己回帰モデルを用いた改良" 物理探査. 51-1. 70-71 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 山本 英和, 小渕 卓也, 斎藤 徳美: "空間自己相関法へのAR modelの適用" 物理探査学会第94回学術講演会講演論文集. 94. 173-177 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 山本 英和, 他: "空間自己相関法の円形アレイにおける地震計配置の検討" 物理探査学会第96回学術講演会講演論文集. 96. 444-447 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 山本 英和, 他: "空間自己相関法の任意アレイへの適用可能性" 物理探査学会第96回学術講演会講演論文集. 96. 448-452 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] YAMAMOTO,H., T.OBUCHI and T.SAITO: "Modified spatial autocorrelation method using autoregressive model for estimating underground velocity structure from microtremor array observation" BUTURI-TANSA. 51. 70-76 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] YAMAMOTO,H., T.OBUCHI and T.SAITO: "Spatial autocorrelation method using AR model" Proceedings od the 94th SEGJ Conference. 173-177 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] YAMAMOTO,H., K.IWAMOTO,T.SAITO and A.YOSHIDA: "Discussion on senser location in circular array for spatial autocorrelation method" Proceedings od the 96th SEGJ Conference. 444-447 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] YAMAMOTO,H., K.IWAMOTO,T.SAITO and M.TACHIBANA: "Can spatial autocorrelation method be applied to arbitary array shape?" Proceedings od the 96th SEGJ Conference. 448-452 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 山本英和, 小渕卓也, 斎藤徳美: "微動アレイ探査における空間自己相関法の自己回帰モデルを用いた改良" 物理探査. 51-1. 70-71 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 山本英和, 小渕卓也, 斎藤徳美: "空間自己相関法へのAR modelの適用" 物理探査学会第94回学術講演会講演論文集. 94. 173-177 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] 山本英和, 他: "空間自己相関法の円形アレイにおける地震計配置の検討" 物理探査学会第96回学術講演会講演論文集. 96. 444-447 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 山本英和, 他: "空間自己相関法の任意アレイへの適用可能性" 物理探査学会第96回学術講演会講演論文集. 96. 448-452 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1997-03-31   Modified: 2016-04-21  

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