2011
DOI: 10.22564/rbgf.v29i3.100
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Uso do atributo amplitude instantânea do dado gpr na avaliação do teor de umidade de solos e sedimentos

Abstract: ABSTRACT. This paper presents results of a study conducted on laboratory and field in order to analyze the parameter amplitude of electromagnetic wave in qualitative assessment of soil moisture contents. We obtained empirical correlations between instantaneous amplitude of the wave, recorded by GPR -Ground Penetrating Radar, and the values of volumetric sediment moisture contents, obtained by TDR -Time Domain Reflectometer, in laboratory experiment as well as in soil samples in a field experiment. Results show… Show more

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“…Steelman and Endres (2011) reported accuracy levels after analysing the behaviour of some petrophysical relationships for several types of geological materials and antenna frequencies ( Table 2). The early-time technique estimates GPR θ without v while changes in amplitude attributes of the combined air wave and ground wave of the reflected signal collected through common offset configurations are used to map ε r (Prado et al, 2011;Ferrara et al, 2013;Algeo et al, 2016).…”
Section: Techniques Used In Shallow Groundwater Researchmentioning
confidence: 99%
“…Steelman and Endres (2011) reported accuracy levels after analysing the behaviour of some petrophysical relationships for several types of geological materials and antenna frequencies ( Table 2). The early-time technique estimates GPR θ without v while changes in amplitude attributes of the combined air wave and ground wave of the reflected signal collected through common offset configurations are used to map ε r (Prado et al, 2011;Ferrara et al, 2013;Algeo et al, 2016).…”
Section: Techniques Used In Shallow Groundwater Researchmentioning
confidence: 99%