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AuthorsSoldati, G.* 
Boschi, L.* 
Piersanti, A.* 
TitleGlobal seismic tomography and modern parallel computers
Issue Date5-Jun-2006
KeywordsNumerical inverse theory
global tomography
seismic resolution
Earth’s mantle
Subject Classification04. Solid Earth::04.02. Exploration geophysics::04.02.06. Seismic methods 
04. Solid Earth::04.06. Seismology::04.06.07. Tomography and anisotropy 
AbstractA fast technological progress is providing seismic tomographers with computers of rapidly increasing speed and RAM, that are not always properly taken advantage of. Large computers with both shared-memory and distributedmemory architectures have made it possible to approach the tomographic inverse problem more accurately. For example, resolution can be quantified from the resolution matrix rather than checkerboard tests; the covariance matrix can be calculated to evaluate the propagation of errors from data to model parameters; the L-curve method can be applied to determine a range of acceptable regularization schemes. We show how these exercises can be implemented efficiently on different hardware architectures.
Appears in Collections:Manuscripts
Annals of Geophysics
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