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Ondes sismiques --- Seismic waves --- Seismische golven

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This series aims to present the latest research on entrepreneurship and innovation and the impact on economic performance. Research topics covered include all aspects of entrepreneurial behavior - the determinants of research and development, intellectual property concerns, innovation within and across firms, the effect of government regulation and tax policies, patenting and other property rights issues, organizational factors, market structure effects, marketing strategies, entrepreneurship programs and other educational activities, and the relative performance of entrepreneurial firms. The disciplines covered include economics, marketing, management, finance, and history. The target audience includes both academics and practicing entrepreneurs. The overall objective is to disseminate research in a clear and effective manner to promote communication between the business and academic communities and to foster entrepreneurship within the society. A volume is published annually. It presents the latest research on entrepreneurship/innovation and the impact on economic performance. This book series is available electronically at website.

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Seismic waves

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Extrapolation of seismic waves from the earth's surface to any level in the subsurface plays an essential role in many advanced seismic processing schemes, such as migration, inverse scattering and redatuming. At present these schemes are based on the acoustic wave equation. This means not only that S-waves (shear waves) are ignored, but also that P-waves (compressional waves) are not handled correctly. In the seismic industry there is an important trend towards multi-component data acquisition. For processing of multi-component seismic data, ignoring S-waves can no longer be justified. Wave field extrapolation should therefore be based on the full elastic wave equation. In this book the authors review acoustic one-way extrapolation of P-waves and introduce elastic one-way extrapolation of P- and S-waves. They demonstrate that elastic extrapolation of multi-component data, decomposed into P- and S-waves, is essentially equivalent to acoustic extrapolation of P-waves. This has the important practical consequence that elastic processing of multi-component seismic data need not be significantly more complicated than acoustic processing of single-component seismic data. This is demonstrated in the final chapters, which deal with the application of wave field extrapolation in the redatuming process of single- and multi-component seismic data. Geophysicists, and anyone who is interested in a review of acoustic and elastic wave theory, will find this book useful. It is also a suitable textbook for graduate students and those following courses in elastic wave field extrapolation as each subject is introduced in a relatively simple manner using the scalar acoustic wave equation. In the chapters on elastic wave field extrapolation the formulation, whenever possible, is analogous to that used in the chapters on acoustic wave field extrapolation. The text is illustrated throughout and a bibliography and keyword index are provided.