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Provedor de dados:  REA
País:  Brazil
Título:  USE OF GROUND PENETRATING RADAR TO STUDY SPATIAL VARIABILITY AND SOIL STRATIGRAPHY
Autores:  Campos,José R. da R.
Vidal-Torrado,Pablo
Modolo,Alcir J.
Data:  2019-06-01
Ano:  2019
Palavras-chave:  Geophysics
Soil stratigraphy
Agricultural engineering
Resumo:  ABSTRACT Ground Penetrating Radar (GPR) is a geophysical method that uses electromagnetic waves to study subsurface structure in different fields such as geology, agriculture and civil engineering. The wave penetration in the soil is strongly controlled by the electrical conductivity of soil components such as clay, organic matter, and water. In this study, tests were conducted in a floodplain in the Elizabeth Creek watershed (New Jersey – USA). We established one transect where measurements were completed using two techniques, common mid point (CMP) and constant offset profile (COP), both with 100- MHz frequency antennas. Measurements were also completed using 250 and 500 MHz shielded antennas. GPR showed good accuracy to study soil spatial variability and stratigraphy. Antennas of a higher frequency had less vertical investigation capacity and greater accuracy. In this study, it was not possible to clearly differentiate signals from organic matter and clay; this was the main limitation of the GPR system.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000300358
Editor:  Associação Brasileira de Engenharia Agrícola
Relação:  10.1590/1809-4430-eng.agric.v39n3p358-364/2019
Formato:  text/html
Fonte:  Engenharia Agrícola v.39 n.3 2019
Direitos:  info:eu-repo/semantics/openAccess
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