1 / 4

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. PETER FRANEK Early Stage Researcher Host Institution: Charles University Prague Place of Origin: Bratislava, Slovakia Appointment Time: December 2005

demi
Download Presentation

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

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Seismic wave Propagation and Imaging in Complex media: a European network • PETER FRANEK • Early Stage Researcher • Host Institution: Charles University Prague • Place of Origin: Bratislava, Slovakia • Appointment Time: December 2005 • Project: Numerical Benchmark of 3D Ground Motion Simulation in the Valley of Grenoble, French Alps (Point Source) • Task Groups: TG Local Scale, Numerical Methods • Cooperation: CU Prague, LGIT Grenoble, ITSAK Thessaloniki, Aristotle University Thessaloniki

  2. Grenoble - prediction with point source Input: Structural modelandbasic properties of the point source(position, focal mechanism,seismic moment)Task: ground motions inside and outside of the Grenoble Valley 3D finite-difference (FD) method: • staggered-grid displacement-velocity-stress scheme • 4th-order in space, 2nd-order in time • Adjusted FD Approximation technique (Kristek et al. 2002) • Rheology of Generalized Maxwell Body (Kristek and Mozco 2003)

  3. N Computational FD model: • grid spacing in finer grid: 30.0 m • grid spacing in coarser grid: 90.0 m • time step: 0.002 s • frequency range: 0.2 – 1.6 Hz

  4. N Results vertical component of particle velocity Outlook • to enlarge the frequency rangeof the wavefield obtained by FDby parallelizing the computational code • to prescribe several scenariosfor stochastic source models

More Related