Fig. 6
From: Seismic refraction investigation of the shallow bedrock in New Qena City, Eastern Desert, Egypt
The models produced by the 2D homogenous function method (upper) that are used as an initial model to create the final tomographic model (lower) for line P1. The algorithm cannot process the overlapped spreads, so every spread is inverted independently. The generated models can be divided into layers based on the velocity gradient. The advantage of the algorithm that each layer has an inner structure, characterized by dominant values of the velocity gradient and its own contour pattern. As shown, for example, layer 2 has the lowest velocity gradient, while layer 4 has the higher gradient. The models generated by the homogenous function methods show strong correlation with the final interpreted tomographic model, and thus increases the reliability of the results.
