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The team of Xu Min, a researcher at the Key Laboratory of Marginal Sea and Ocean Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, combined with Professor Chen Xiaofei of Southern University of Science and Technology, and researcher Ni Sidao of the Institute of Precision Measurement Science and Technology Innovation of the Chinese Academy of Sciences, are using ocean T waves to restrain coastal stability New progress has been made in the study of the attenuation structure of the continental crust
The high-frequency ( >1 Hz ) crustal attenuation structure has important guiding significance for seismic risk assessment
Taking southern Africa as an example, the researchers explored and successfully realized the feasibility of using ocean T waves to constrain the attenuation structure of the continental crust
The study confirmed by the ocean T converted waves on the shore can get a good crust wave attenuation structure, and innovative use of ocean T -wave converter wave on the shore of obtaining crustal attenuation structure in southern Africa, which extended to Research on the attenuation structure of other stable coastal land blocks
The research was funded by the Wang Kuancheng Education Fund, the Open Fund of the Key Laboratory of Marginal Sea and Ocean Geology of the Chinese Academy of Sciences, the National Natural Science Foundation of China, the Natural Science Foundation of Guangdong Province, the Fundamental Resources Survey Project of the Ministry of Science and Technology, and the Guangdong Provincial Laboratory of Southern Ocean Science and Engineering (Guangzhou).
Related paper information: https://doi.
Figure 1 Schematic diagram of the TP/S path of ocean T- wave nearshore conversion
Figure 2 T wave properties recorded by a single station .
Figure 3 The characteristics of the attenuation structure of the high-frequency crust in southern Africa obtained by T- wave inversion as a function of frequency
