This Applet allows you to visualize how Seismic data is recorded. This is intended to introduce basic concepts about seismic reflection. This Applet also helps to visualize what happens when overestimating or underestimating the velocity leads to migration errors. Should this velocity differs from the real velocity, the hyperbole will not match the one obtained for any given point of the subsurface. The subsurface velocity can be changed in the lower panel.
Homogeneous velocity is assumed.
The velocity for migration can be changed in the lower panel. This velocity is used to migrate the 'zero-offset' time section. The field z0 is used to indicate the depth of the receivers used to create the exploding reflector time section. In other words, when migrating events to a single sample, this number indicates how many traces, of the traces surrounding the trace where the sample is, are going to be considered for the summation. DX indicates the separation between traces in meters.