Including near-field terms in the isochrone integration method for application to finite-fault or kirchhoff boundary integral problems
In many types of seismological and engineering problems, it is necessary to perform a surface integral involving a Green's function having either a source or receiver point on the surface. For far-field terms of the Green's function, it is well known that the surface integral can be reduced to a line integral, yielding a considerable computational advantage. In this work we show that a similar transformation to a line integral can be made for the near-field terms when the Green's function is for a uniform whole space. The necessary condition is that the various terms in the Green's function can be transformed into sums of nondispersive pulses. We accomplish this for near-field terms in a whole space by repeatedly time-differentiating the terms.
Citation Information
Publication Year | 1994 |
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Title | Including near-field terms in the isochrone integration method for application to finite-fault or kirchhoff boundary integral problems |
DOI | 10.1785/BSSA0840041260 |
Authors | William B. Joyner, Paul Spudich |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Bulletin of the Seismological Society of America |
Index ID | 70186740 |
Record Source | USGS Publications Warehouse |