HR: 1340h
AN: NG43B-0578    [Abstracts]
TI: A SPICE synthetic dataset to benchmark global tomographic methods
AU: * Qin, Y
EM: qyl@ipgp.jussieu.fr
AF: Dept. Seismologie, IPG, 4 Place Jussieu, Paris, 75252 France
AU: Capdeville, Y
EM: capdevil@ipgp.jussieu.fr
AF: Dept. Seismologie, IPG, 4 Place Jussieu, Paris, 75252 France
AU: Maupin, V
NG43B-0578 AF: Dept. Geosciences, University of Oslo, PO Box 1047, Blinder, Oslo, 0316 Norway
AU: Montagner, J
EM: jpm@ipgp.jussieu.fr
AF: Dept. Seismologie, IPG, 4 Place Jussieu, Paris, 75252 France
AB: The different existing global tomographic methods result in different models of the Earth. Within SPICE (Seismic wave Propagation and Imaging in Complex media: a European network), we have decided to perform a benchmark experiment of global tomographic techniques. A global model has been constructed. It includes 3D heterogeneities in velocity, anisotropy and attenuation, as well as topography of discontinuities. Simplified versions of the model will also be used. Synthetic seismograms will be generated at low frequency by the Spectral Element Method, for a realistic distribution of sources and stations. The synthetic seismograms will be made available to the scientific community at the SPICE website www.spice-rtn.org. Any group wishing to test his tomographic algorithm is encouraged to download the synthetic data.
DE: 3260 Inverse theory
DE: 4494 Instruments and techniques
DE: 7260 Theory
DE: 7270 Tomography (6982, 8180)
DE: 8124 Earth's interior: composition and state (1212, 7207, 7208, 8105)
SC: Nonlinear Geophysics [NG]
MN: Fall Meeting 2005