書誌事項
- タイトル別名
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- 津波の発生・伝播と海底水圧変動との関連性
- Decimation Filter Designed for Application to Real-time Bottom Pressure Records
- スイアツシキ ツナミケイ ノ リアルタイムデータ ニ テキヨウ スル タメ ノ フィルタ セッケイ
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説明
Bottom pressure gauges are widely used for tsunami registration. Along with tsunami signal, bottom pressure records contain high-frequency fluctuations that arise due to seismic and hydroacoustic waves. Exceeding the tsunami signal in amplitude, these high-frequency fluctuations can completely disguise tsunami signal, especially in the vicinity of tsunami source. For the detection of a tsunami in real-time and for the monitoring of ocean bottom deformation it is important to effectively filter the bottom pressure signal. In this study, we design a three-step decimation filter which allows to effectively select signals of tsunami and ocean-bottom deformation. The Tokachi-oki tsunamigenic earthquakes of 2003 and 2008 are taken as examples to demonstrate the efficiency of the new filter.
収録刊行物
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- 海岸工学論文集
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海岸工学論文集 47 361-365, 2000
公益社団法人 土木学会
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詳細情報 詳細情報について
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- CRID
- 1390001204549636480
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- NII論文ID
- 130004706893
- 130003990818
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- NII書誌ID
- AA12508551
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- ISSN
- 18848222
- 18838944
- 09167897
- 18842399
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- NDL書誌ID
- 025931712
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- 本文言語コード
- ja
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- 資料種別
- journal article
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- データソース種別
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- JaLC
- NDLサーチ
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- 抄録ライセンスフラグ
- 使用不可
