Edafología. Volumen 5. Diciembre 1998. pag 109-120.
ESTIMACIÓN DE LA PROFUNDIDAD DE PENETRACIÓN DEL RADAR (GPR) A PARTIR DE MEDIDAS REFLECTOMETRICAS TDR "in situ"
A. López Piñeiro1; A. García Navarro1 y M. E. Collins2
1. Área de Edafología y Química Agrícola. Facultad de Ciencias Universidad de Extremadura. 06075 Badajoz
2.Soil and Water Science Department. University of Florida Gainesville FL 32611-0290
Many investigations have been conducted to determine relative dielectric constants (Er) for soils. Most of these studies have been conducted on soil samples in laboratory and none of these investigations studied the soil Ers in natural field conditions and related this information to ground-penetrating radar depths. Therefore, the objectives of this research were to (1)determine soil Ers under field conditions, and (2) determine the depth of radar penetration in selected soils using the calculated Ers. The results indicated that the Ers ranged from 3 to 12.3 in the twenty mineral soils and from 59 to 71 in the organic soil studied. The range in Ers values for most of the soils studied was less than expected from the variability observed in soil properties. Use of the actual Ers did change the estimated depth of radar penetration. For the limited range of soils studied, the depth of radar penetration could be determined with more accuracy.
Key words: GPR, dielectric constant, TDR
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