About: 3D and 2D computations of 3D synthetic seismograms using the ray-based Born approximation in simple models

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About: 3D and 2D computations of 3D synthetic seismograms using the ray-based Born approximation in simple models Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Program grdborn.for for computation of the 2D and 3D ray-based Born approximation of the first order in inhomogenous isotropic medium without attenuation has been coded. Both 2D and 3D amplitudes can be calculated in 2D. The computation of 3D amplitudes by the 2D Born approximation is based on the correction term, which is derived in this paper. The 2D computation is, of course, due to reduction of one dimension, much faster though the results are very good. Three simple models are used to show the program performance. The P-waves are considered in all computations apart from one numerical example in which we show that the program can compute S-wave seismograms too. The effect of discretization is numerically shown in 3D computations and we also attempt to explain it theoretically. We numerically touch the effect of increasing perturbations. Program grdborn.for for computation of the 2D and 3D ray-based Born approximation of the first order in inhomogenous isotropic medium without attenuation has been coded. Both 2D and 3D amplitudes can be calculated in 2D. The computation of 3D amplitudes by the 2D Born approximation is based on the correction term, which is derived in this paper. The 2D computation is, of course, due to reduction of one dimension, much faster though the results are very good. Three simple models are used to show the program performance. The P-waves are considered in all computations apart from one numerical example in which we show that the program can compute S-wave seismograms too. The effect of discretization is numerically shown in 3D computations and we also attempt to explain it theoretically. We numerically touch the effect of increasing perturbations. (en)
Title	3D and 2D computations of 3D synthetic seismograms using the ray-based Born approximation in simple models 3D and 2D computations of 3D synthetic seismograms using the ray-based Born approximation in simple models (en)
skos:prefLabel	3D and 2D computations of 3D synthetic seismograms using the ray-based Born approximation in simple models 3D and 2D computations of 3D synthetic seismograms using the ray-based Born approximation in simple models (en)
skos:notation	RIV/00216208:11320/11:10100625!RIV12-GA0-11320___
http://linked.open...avai/predkladatel	Matematicko-fyzikální fakulta
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GAP210/10/0736), Z(MSM0021620860)
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Šachl, Libor
http://linked.open.../riv/druhVysledku	O - Ostatní výsledky nezařaditelné do žádného z výše uvedených druhů výsledku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	244068
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/11:10100625
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	models; simple; approximation; Born; ray-based; using; seismograms; synthetic; computations (en)
http://linked.open.../riv/klicoveSlovo	using approximation models simple synthetic Born computations ray-based seismograms
http://linked.open...ontrolniKodProRIV	[1CE18F3647E9]
http://linked.open...in/vavai/riv/obor	DC
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	New trends in ray methods - part 4
http://linked.open...UplatneniVysledku	2011
http://linked.open...iv/tvurceVysledku	Šachl, Libor
http://linked.open...n/vavai/riv/zamer	Fyzikální studium objektů a procesů ve sluneční soustavě a v astrofyzikálních systémech
http://localhost/t...ganizacniJednotka	11320

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