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f Smoothing constraints in cross-hole seismic tomography
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 53rd EAEG Meeting, May 1991, cp-42-00301
- ISBN: 978-90-73781-03-0
Abstract
The cross-hole seismic tomography problem is ill-posed in the sense that small changes in travel times may cause excessive variations in the calculated slowness image. These artifacts can have amplitudes large enough to mask the true velocity structure and a spatial extent small enough than the resolving power of the data. Consequently, the image should be smoothed to pro duce results that are geologically meaningful.