Long-term stability and noise level of ocean bottom pressure measurements by deep-sea cabled observatories around Japan

D. Inazu, R. Hino

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Ocean bottom pressure (OBP) data for tsunami monitoring obtained by cabled seafloor observatories deployed around Japan are known to be significantly affected by temperature changes. We investigated long-term changes of the OBP data including this OBP-temperature relationship using more than ten-year data. The yearly mean OBP changes were found to show gradual increase (O(hPa/year)), and to have no significant correlation to the temperature changes. In contrast, the strong relationship was apparent at periods from hours to days, and we tried to correct the OBP data based on the estimated OBP-temperature relationship. At periods longer than days, noise reduction was not enough for most of the corrected OBP data; however, it turned out that the correction works successfully for the data at a station off Hokkaido (KPG2) in detecting geophysical signals.

本文言語English
ホスト出版物のタイトル2011 IEEE Symposium on Underwater Technology, UT'11 and Workshop on Scientific Use of Submarine Cables and Related Technologies, SSC'11
DOI
出版ステータスPublished - 2011
イベント2011 IEEE Symposium on Underwater Technology, UT'11 and Workshop on Scientific Use of Submarine Cables and Related Technologies, SSC'11 - Tokyo, Japan
継続期間: 2011 4 52011 4 8

出版物シリーズ

名前2011 IEEE Symposium on Underwater Technology, UT'11 and Workshop on Scientific Use of Submarine Cables and Related Technologies, SSC'11

Other

Other2011 IEEE Symposium on Underwater Technology, UT'11 and Workshop on Scientific Use of Submarine Cables and Related Technologies, SSC'11
国/地域Japan
CityTokyo
Period11/4/511/4/8

ASJC Scopus subject areas

  • 電子工学および電気工学
  • 海洋工学

フィンガープリント

「Long-term stability and noise level of ocean bottom pressure measurements by deep-sea cabled observatories around Japan」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル