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http://hdl.handle.net/2122/1164
Authors: | Soldati, G.* Boschi, L.* Piersanti, A.* |
Title: | Global seismic tomography and modern parallel computers | Series/Report no.: | 4-5/49(2006) | Issue Date: | 5-Jun-2006 | Keywords: | Numerical inverse theory seismology global tomography seismic resolution Earth’s mantle |
Subject Classification: | 04. Solid Earth::04.02. Exploration geophysics::04.02.06. Seismic methods 04. Solid Earth::04.06. Seismology::04.06.07. Tomography and anisotropy |
Abstract: | A 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: | Annals of Geophysics Article published / in press Manuscripts |
Files in This Item:
File | Description | Size | Format | |
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Soldati post.pdf | 602 kB | Adobe PDF | View/Open | |
Pub_paper.pdf | 555.03 kB | Adobe PDF | View/Open |
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