• 제목/요약/키워드: Autonomous Underwater Hydrophone

검색결과 2건 처리시간 0.024초

Shallow Crustal Structure of the Bransfield Basin Using an Autonomous Underwater Hydrophone

  • ;박민규;홍종국;이주한
    • 지구물리
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    • 제9권4호
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    • pp.351-359
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    • 2006
  • We investigated subsurface structures of the Bransfield Basin, the Antarctic with AUH (Autonomous Underwater Hydrophne) which was designed to record abyssal T-waves generated from submarine earthquakes. The data obtained from a multi-channel seismic survey and an AUH were used for this study. A seismic reflection method was applied to the multi-channel seismic survey data in order to identify bathymetry and sedimentary structures, and the signals recorded in the AUH were used to obtain deep structures as we applied a seismic refraction method. Even though we couldn’t investigate deeper and detailed structure in study area because of lack of Airgun’s capacity, the AUH showed possibilities for being used for a marine seismic survey. From this experiment, we decided the upper and lower sediment layer velocities, detected irregular basement topography probably caused by submarine volcanic/magmatic activities, and retrieved the velocity of the basement and the depth of the sediment layer/basement boundary.

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