The significance of seabed reflection coefficient derived from high frequency seismic data to marine sedimentary environment

In this paper, the physical and practical significance of seabed reflection coefficient are studied based on the seismic convolution model, which reveals that high frequency signal is sensitive to the acoustic impedance changing. Then based on the seismic data acquired in the west coast of Taiwan St...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2019-02, Vol.227 (6), p.62016
Main Authors: Zheng, Jianglong, Xu, Jiang, Tong, Siyou, Li, Haidong, Hu, Yi
Format: Article
Language:English
Subjects:
Acoustic impedance
Computational fluid dynamics
Convolution
Data acquisition
Fluid flow
Geological sampling
High frequencies
Hydrodynamics
Ocean floor
Reflectance
Reflected waves
Reflection
Seismic analysis
Sound pressure
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Summary:In this paper, the physical and practical significance of seabed reflection coefficient are studied based on the seismic convolution model, which reveals that high frequency signal is sensitive to the acoustic impedance changing. Then based on the seismic data acquired in the west coast of Taiwan Strait used for case study, the seabed reflection coefficient is calculated in the light of sound pressure level and seabed reflected wave. In comparison with the results of geological sampling and analysis, the overall trend of fine particles correspond to lower reflection coefficient and coarse particles correspond to greater reflection coefficient. In addition, the abnormal values of the calculated reflection coefficient could indicate some abnormal phenomena at or near the seabed, which could also be identified from the seismic profile. In brief, the seabed reflection coefficient derived from high frequency seismic data could be used for studying the modern marine sedimentary environment. The reflection intensity might be a good indicator of hydrodynamics of sedimentation.
ISSN:1755-1307
1755-1315
1755-1315
DOI:10.1088/1755-1315/227/6/062016