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| | Abstract | | Multi-channel seismic reflection method is known to be applied for physical oceanographic researches in recent years. Fortin and Holbrook ,2009 demonstrated importance of knowledge of sound velocity structure for high resolution imaging of seismic reflectors in the ocean. Japan Agency for Marine-Earth Science and Technology carried out dense 2-D Multi-channel seismic reflection surveys in Izu-Ogasawara region with oceanographic observation. We investigated the characteristics of reflection coefficient calculated from the sea properties and Multi-channel seismic reflection data. Some strong reflectors is corresponding to the high amplitude of reflection coefficient from oceanographic research. We also compared the velocity structure obtained by conventional velocity analysis with by expendable conductivity-temperature-depth observation. |
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