Lianxing Wen -> Research -> Seismology:

Theoretical and Observational Seismology

Our primary goal is to discover and map seismic structures in the Earth's interior and to understand these seismic structures in the context of composition, temperature and dynamics of different parts of the Earth. Our approaches toward the problem have been both theoretical and observational. We have developed hybrid methods with can handle seismic wave propagation problem in heterogeneous regions at large distances. Hybrid methods are combinations of analytical and numerical methods, with numerical methods applied in heterogeneous regions only and analytical methods outside. We have also developed migration techniques to best utilize the large amount of dense seismic data. Observationally, we have utilized analog and digital seismic data to map out fine structures in various parts of the Earth's interior.