Reducing spurious diffractions in elastic wavefield calculations

Geophysics

Volumn 61, Issue 5, 1996, Pages 1436-1439

  Zeng, Xiansong ^a   West, Gordon F ^a  

^a UNIVERSITY OF TORONTO   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

ALGORITHMS; CALCULATIONS; ELASTIC WAVES; FINITE DIFFERENCE METHOD; FUNCTIONS; GEOLOGIC MODELS; MATHEMATICAL MODELS; SAMPLING;

DELTA FUNCTION; ELASTIC WAVE PROPAGATION; ELASTIC WAVEFIELD; FOURIER PSEUDOSPECTRAL METHOD; NUMERICAL GRID; NUMERICAL WAVE PROPAGATION ALGORITHMS; SPURIOUS DIFFRACTIONS; SUPERSAMPLING; WEIGHTING FUNCTION;

GEOPHYSICS;

DIFFRACTION REDUCTION; DISCRETIZATION; WAVE PROPAGATION;

EID: 5944259041     PISSN: 00168033     EISSN: None     Source Type: Journal    
DOI: 10.1190/1.1444069     Document Type: Article

References (7)

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2. Fornberg, B., 1988, The pseudospectral method: Accurate representation of interfaces in elastic wave calculations: Geophysics, 53, 625-637.
3. Kosloff, D., Reshef, M., and Loewenthal, D., 1984, Elastic wave calculations by the Fourier method: Bull., Seis. Soc. Am., 74, 875-891.
4. Jastram, C., and Tessmer, E., 1994, Elastic modeling on a grid with vertically varying spacing: Geophys. Prosp., 42, 357-370.
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6. Muir, F., Dellinger, J., Etgen, J., and Nichols, D., 1992. Modeling elastic fields across irregular boundaries: Geophysics. 57, 1189-1193.
7. Nielsen, P., Flemming, I., Berg, P., and Skovgaard, O., 1994, Using the pseudospectral technique on curved grids for 2-D acoustic forward modeling: Geophys. Prosp., 42, 321-341.