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S eismic wave P ropagation and I maging in C omplex media: a E uropean network

S eismic wave P ropagation and I maging in C omplex media: a E uropean network. JOSEP DE LA PUENTE Early Stage Researcher Host Institution: LMU Munich Place of Origin: Barcelona, Spain Appointment Time: October 2004

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S eismic wave P ropagation and I maging in C omplex media: a E uropean network

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  1. Seismic wave Propagation and Imaging in Complex media: a European network • JOSEP DE LA PUENTE • Early Stage Researcher • Host Institution: LMU Munich • Place of Origin: Barcelona, Spain • Appointment Time: October 2004 • Project: Simulation of Earthquakes in Unstructured Meshes, Viscoelasticity, ADER-DG Method. • Task Groups: TG Numerical Methods, TG Digital Library • Cooperation: IPG Paris, Trento University

  2. Project ScopeUnstructured Meshes in Seismology Complex geometries can be handled easily with methods that allow the use of unstructured grids. Topographic features, faults and others can be meshed accurately. If we aim at simulating wave propagation in 3D realistic structures, an accurate representation of the physical phenomena (wave propagation) and of the media are a must. Insert picture

  3. Main Results This method has proven to be very accurate in simulating elastic wave propagation in triangular and tetrahedral meshes Insert picture Insert picture And keeps a door open for future progress at different scales, including the planetary…

  4. Outlook In order to reproduce realistic seismic wave simulation, energy losses have to be taken into account. Upgrading ADER-DG to viscoelastic rheology makes it ready to be used for research purposes. Future work will aim at improving the performance of the method and apply it to a series of interesting problems, including benchmarking with other methods.

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