リアルタイム・キネマティックGNSSデータ解析の高度化およびそれにもとづく巨大地震の震源断層即時推定手法に関する研究

DOI Web Site 被引用文献2件
  • 太田 雄策
    東北大学大学院理学研究科附属 地震・噴火予知研究観測センター

書誌事項

タイトル別名
  • Study on the Improvement of Real-Time Kinematic GNSS Data Analysis and Development of Rapid Coseismic Fault Determination Method Based on Those Data
  • リアルタイム ・ キネマティック GNSS データ カイセキ ノ コウドカ オヨビ ソレニ モトズク キョダイジシン ノ シンゲン ダンソウ ソクジ スイテイ シュホウ ニ カンスル ケンキュウ

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抄録

<p>GNSS is strong and common observation tool for understanding the spatial and temporal development of crustal deformation. The one of the advantage of GNSS is the high dynamic range with broadband characteristic. Based on these characteristics, various studies developed the quasi realtime coseismic fault determination method deduced from the real-time GNSS data. Crustal deformation due to coseismic slips at an earthquake fault detected by real-time GNSS analysis is quite useful in estimating fault expansion and the amount of its slip. It in turn contributes to rapid tsunami warning for near field coast, even though the huge interplate earthquakes such as larger than the magnitude 9 event. This paper summarizes the author’s past research on improvement and its comprehensive noise assessment of real-time kinematic GNSS analysis and development of rapid coseismic fault determination technique based on those data. The author also reviews recent development status on crustal deformation monitoring system in Japan, which have been jointly developed by Geospatial Information Authority of Japan and Tohoku University. Furthermore, the author also discusses a future direction of the real-time crustal deformation monitoring and near field tsunami early warning system based on the GNSS data.</p>

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