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Appendix B: Waves at a Free Surface

Published:
January 01, 2007

In Chapter 3, we derived formulas that describe how the scalar amplitude of particle displacement changes along a ray. However, in a seismic survey, this scalar amplitude is not directly recorded because the geophones or hydrophones are at a free surface. This appendix addresses how the described scalar amplitude of particle displacement can be computed from land-seismic three-component free-surface recordings. It also addresses how pressure is described in a sea-seismic survey. The formulas in this appendix are based on the conversion coefficients given by Červený et al. (1977).

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Geophysical Developments Series

Seismic True-Amplitude Imaging

Jörg Schleicher
Jörg Schleicher
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Martin Tygel
Martin Tygel
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Peter Hubral
Peter Hubral
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Society of Exploration Geophysicists
Volume
12
ISBN electronic:
9781560801672
Publication date:
January 01, 2007

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