Study of seasonal variation of the P-wave velocity and porosity estimation using seismic refraction

Marcelo Peres Rocha, Welitom Rodrigues Borges, Eduardo Xavier Seimetz, Paulo Araújo de Azevedo, Márcio Maciel Cavalcanti, Pedro Vencovsky Nogueira

2011

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DOI 10.1190/sbgf2011-164

Data confidence 70 medium

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Abstract

Abstract This work shows results of seismic refraction in an area within the University of Brasilia, Campus Darcy Ribeiro, during dry and rainy seasons in the years 2010 and 2011. The main objective was to show the variability of seismic velocity with respect to seasonality, related with the water content in the ground. The results showed seasonal changes in the velocity of the first and second layer of the studied profile. With these results it was possible to estimate the porosity of the first layer.