In this paper we propose the use of a fast kinematic refraction inversion method for P and SH arrivals for interpretation near surface structures. The basic aim for this method is that lateral changes both in layer thicknesses and propagation velocities in the media are described by adequately chosen functions expanded in series.With the method we can estimate the lateral changes of the P and S velocities and layer thicknesses. With the joint interpretation of both inversion results we can recognize in near surface structures the water table and low velocity contrast too. In the paper we show a practical example.


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