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Spectral element method (SEM) for elastic media is well known for its great flexibility and high accuracy in solving problems with complex geometries. It is an advanced choice for wave simulations. Due to anelasticity of earth media, SEM for elastic media is no longer appropriate. On fundamental of the second-order elastic SEM, this work takes the viscoelastic wave equations and the vertical transversely...
Using a time series method that combines both the persistent scatterer and small baseline approaches, we analyzed 9 scenes Envisat ASAR data over the L’Aquila earthquake, and obtained a Shocke’s displacement field and its evolution processes. The results show that: (1) Envisat ASAR clearly detected the whole processes of displacement field of the L’Aquila earthquake, and distinct variations at different...
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