| Project/Area Number |
25350501
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Natural disaster / Disaster prevention science
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| Research Institution | Japan Agency for Marine-Earth Science and Technology |
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Principal Investigator |
MATSUMOTO Hiroyuki 国立研究開発法人海洋研究開発機構, 地震津波海域観測研究開発センター, 技術研究員 (80360759)
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| Co-Investigator(Kenkyū-buntansha) |
HAYASHI Yutaka 気象庁気象研究所, 地震津波研究部, 主任研究官 (40370332)
HORI Takane 国立研究開発法人海洋研究開発機構, 地震津波海域観測研究開発センター, グループリーダー (00359176)
ARIYOSHI Keisuke 国立研究開発法人海洋研究開発機構, 地震津波海域観測研究開発センター, 技術研究員 (20436075)
YAMAZAKI Akira 気象庁気象研究所, 地震火山研究部, 主任研究官 (70354529)
KANEDA Yoshiyuki 国立研究開発法人海洋研究開発機構, 地震津波海域観測研究開発センター, 招聘上席技術研究員 (50359171)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 津波 / 水圧式津波計 / 2003年十勝沖地震 / 2011年東北地方太平洋沖地震 / デシメーションフィルタ / 地震動 / 地震 / 海底津波計 / 地震・津波観測監視システム |
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| Outline of Final Research Achievements |
This study aims to make use of real-time data being sent from the ocean-bottom pressure sensors for effective tsunami forecasting. For this purpose, two major scopes are conducted in this study; one is to design digital filter to be applied to the real-time data acquired near tsunami source area, and one is to interpret the in-situ pressure data to enhance tsunami detectability. Applying the designed filter to the pressure data at the 2003 Tokachi-oki earthquake, it is validated that the tsunami signals could be extracted within approximately 1 min. Also, processing and analysis of pressure data acquired by DONET during the 2011 Tohoku earthquake show that the pressure disturbances during the earthquake are involved by the seismic and acoustic waves.
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