HR: 0800h
AN: S21C-0718    [Abstracts]
TI: Purpose Built Computers for the Wave Equation
AU: * Bording, R P
EM: pbording@mun.ca
AF: Department of Earth Sciences Memorial University of Newfoundland, 300 Prince Philip Dr., St. John's, NL A1B 3X5, Canada
AU: Atle, A
EM: atle@nada.kth.se
AF: Department of Earth Sciences Memorial University of Newfoundland, 300 Prince Philip Dr., St. John's, NL A1B 3X5, Canada
AB: The construction of a purpose built computer for the wave equation is presented as a novel and powerful method to improve the rate at with synthetic seismograms are computed. The new hardware of Waves in Linear Motion Analyzer uses field programable gate array logic circuits to compute the finite difference solutions to elastic and acoustic wave equations in two and three dimensions. Examples of problems which this machine can solve are near surface Rayleigh waves, elastic/acoustic reflection profiles, and vertical seismic profiles. The kernel of several inverse problems is the modeling algorithm of the machine. Hence, large scale 3D seismic inversion methods are now feasible.
DE: 0902 Computational methods: seismic
DE: 0910 Data processing
DE: 3260 Inverse theory
DE: 3285 Wave propagation (0689, 2487, 4275, 4455, 6934)
SC: Seismology [S]
MN: 2007 Fall Meeting