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Abstract

Crosshole radar tomography is increasingly being used to characterize the shallow subsurface<br>and to monitor hydrologic processes. Although tomographic inversion provides a subsurface<br>model, confidently interpreting the resulting image can be challenging. We conducted a simple<br>modeling study to better understand the capabilities and limitations of tomographic inversion. We<br>start with a known earth model, simulate a tomography experiment, and invert the synthetic data.<br>We investigate the effects of straight and curved ray approximations to wave propagation, regularization,<br>grid size, and starting model. We also investigate the effects of limited ray coverage<br>through the earth model and noise in the data. Understanding the effects of these different methods<br>and parameterizations will help us place confidence limits on modeled features to more accurately<br>reflect our knowledge of the subsurface.

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/content/papers/10.3997/2214-4609-pdb.200.2000_064
2000-02-20
2020-04-02
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609-pdb.200.2000_064
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