1887

Abstract

Ground penetrating radar (GPR), a geophysical method based on electromagnetic (EM) wave propagation, can provide very detailed and continuous images of the internal structures of aeolian dunes. In order to model and explain the origin of observed reflections, we build a model of electric permittivity which accounts for the grain size distribution and shape. By modelling the propagation of GPR waves in frequency domain, we have shown that grain size and grain shape have an influence on GPR reflectivity and we confirmed it by adjusting the modelled data to the real GPR data acquired in arid zones.

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/content/papers/10.3997/2214-4609.201401134
2010-06-14
2024-03-28
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201401134
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