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Study of seismic wave envelope formation due to inclusions

Research Project

Project/Area Number 19540438
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Solid earth and planetary physics
Research InstitutionIbaraki University

Principal Investigator

KAWAHARA Jun  Ibaraki University, 理学部, 准教授 (80282276)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2008: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2007: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords地震波エンベロープ / 地震波散乱 / 介在物
Research Abstract

リソスフェアに含まれるランダムな小規模不均質構造のモデルとして介在物分布を考え、それによる地震波エンベロープ(包絡形)形成を理論と数値実験の両面から検討した.その結果、実験結果を定量的に再現できる理論や、エンベロープの形状を規定するモデルパラメータ等を確認し、実際の観測エンベロープへの介在物分布モデルの適用可能性を示した.また不均質構造の不連続性がエンベロープ形成に及ぼす影響について若干の知見を得た.

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (13 results)

All 2009 2008 2007 Other

All Journal Article (2 results) Presentation (8 results) Remarks (3 results)

  • [Journal Article] 弱い離散的不均質による弾性波の散乱減衰2007

    • Author(s)
      河原純
    • Journal Title

      月刊地球 29巻

      Pages: 237-241

    • Related Report
      2008 Final Research Report
  • [Journal Article] 弱い離散的不均質による弾性波の散乱減衰2007

    • Author(s)
      河原 純
    • Journal Title

      月刊地球 29

      Pages: 237-241

    • Related Report
      2007 Annual Research Report
  • [Presentation] 介在物分布を含む2次元媒質中のSHコーダ波エンベロープ2009

    • Author(s)
      河原純、蓬田清
    • Organizer
      日本地球惑星科学連合2009年大会
    • Place of Presentation
      幕張メッセ国際会議場(千葉県千葉市)
    • Year and Date
      2009-05-17
    • Related Report
      2008 Final Research Report
  • [Presentation] 介在物分布を含む2次元媒質中のSHコーダ波エンベロープ2009

    • Author(s)
      河原純、蓬田清
    • Organizer
      日本地球惑星科学連合2009年大会(発表確定)
    • Place of Presentation
      幕張メッセ国際会議場(千葉県千葉市)
    • Year and Date
      2009-05-17
    • Related Report
      2008 Annual Research Report
  • [Presentation] Attenuation and dispersion of SH waves due to scattering by inclusions2008

    • Author(s)
      Jun Kawahara, Kiyoshi Yomogida
    • Organizer
      The 7th ASC General Assembly for Asian Seismological Commission and Seismological Society of Japan, 2008 Fall meeting
    • Place of Presentation
      つくば国際会議場(茨城県つくば市)
    • Year and Date
      2008-11-26
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] 弱い離散的不均質による弾性波の散乱減衰(2)2008

    • Author(s)
      河原純
    • Organizer
      日本地球惑星科学連合2008年大会
    • Place of Presentation
      幕張メッセ国際会議場(千葉県千葉市)
    • Year and Date
      2008-05-25
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] Scattering attenuation due to weak discrete inhomogeneities : Comparison of the Born and Foldy approximations2007

    • Author(s)
      Jun Kawahara
    • Organizer
      American Geophysical Union, Fall Meeting 2007
    • Place of Presentation
      Moscone Center(米国サンフランシスコ市)
    • Year and Date
      2007-12-14
    • Related Report
      2008 Final Research Report
  • [Presentation] Scatteringg attenuation due to weak discrete inhomgeneities: Comparison of the Born and Foldy approximations2007

    • Author(s)
      Jun Kawahara
    • Organizer
      American Geophysical Union, Fall Meeting 2007
    • Place of Presentation
      Moscone Center(米国サンフランシスコ)
    • Year and Date
      2007-12-14
    • Related Report
      2007 Annual Research Report
  • [Presentation] 弱い離散的不均質による弾性波の散乱減衰2007

    • Author(s)
      河原純
    • Organizer
      日本地球惑星科学連合2007年大会
    • Place of Presentation
      幕張メッセ国際会議場(千葉県千葉市)
    • Year and Date
      2007-05-21
    • Related Report
      2008 Final Research Report
  • [Presentation] 弱い離散的不均質による弾性波の散乱減衰2007

    • Author(s)
      河原 純
    • Organizer
      日本地球惑星科学連合2007年大会
    • Place of Presentation
      幕張メッセ国際会議場(千葉市)
    • Year and Date
      2007-05-21
    • Related Report
      2007 Annual Research Report
  • [Remarks] 研究者データベース

    • URL

      http://info.ibaraki.ac.jp/Profiles/4/0000384/profile.html

    • Related Report
      2008 Final Research Report
  • [Remarks]

    • URL

      http://info.ibaraki.ac.jp/scripts/websearch/index.htm

    • Related Report
      2008 Annual Research Report
  • [Remarks] 茨城大学研究者情報総覧

    • URL

      http://info.ibaraki.ac.jp/scripts/websearch/index.htm

    • Related Report
      2007 Annual Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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