Simulation Of Elastic Wave Propagation In Models Containing Irregular Interfaces Parameterized On Irregular Grids
Name
1997.8 Nolte.pdf
Size
597.89 KB
Format
Adobe PDF
Checksum (MD5)
310136d35a4cb3d7702c82aac1b64293
Author(s)
Nolte, Bertram
Date Issued
1997
Publisher
Massachusetts Institute of Technology. Earth Resources Laboratory
Series/Report no.
Earth Resources Laboratory Industry Consortia Annual Report;1997-08
Abstract
Thus study demonstrates the advantages of a recently-developed irregular-grid modeling
technique (Nolte, 1996). This technique can model irregular interfaces more accurately
than a standard regular-grid finite-difference method. I show this by comparison of both
methods for a simple model containing a sloping interface. While the discrete approximation to the sloping interface results in numerical inaccuracies for the finite-difference method, the irregular-grid technique produces superior results. I then show that the method can also be applied to a free surface with irregular topography, suggesting that it may be a valuable alternative to existing finite-difference free-surface algorithms.
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