Bulletin of the Seismological Society of America; June 2008; v. 98; no. 3;
p. 1243-1271; DOI: 10.1785/0120060230
© Seismological Society of America
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Figure A2. Transfer functions for the three velocity profiles of Figure A1. The solid curve corresponds to the true model, the dashed curve corresponds to the preferred approximation, and the dotted-dashed curve corresponds to a simple approximation where the topography is removed without further corrections. Note that for frequencies greater than 0.4 Hz, the simple approach is 20% low on average, and continues to degrade with increasing frequency. While there is an unavoidable shift of subharmonics, the overall amplitude response of the preferred approximation is reasonably good.
