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Abstract

Adequate handling of the near surface is crucial for proper imaging of land data, especially for complex overburdens. Recently we introduced modal elastic inversion (Ernst 2013): approximate FWI which inverts P-guided waves to near-surface P-velocity models. We will present two case studies of modal elastic inversion of P-guided waves to obtain near-surface velocity models. The results show that this inversion approach can give realistic results not only for modern high-end densely sampled surveys, but also for sparse legacy dynamite surveys.

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/content/papers/10.3997/2214-4609.20140536
2014-06-16
2020-03-29
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.20140536
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