Raw data

Figure  shows a typical shot record with the traces ordered one streamer after the next. The traveltimes are relative to an arbitrary reference. The water-bottom multiple is seen in the close-up look from one the streamers in Figure  at about 4 s on the near offset trace. Notice also the diffractions and complex moveout of some of the reflectors due to the 3D nature of the subsurface and the complex wave propagation it produces.

 

shot1
Figure 6 A typical shot record showing the data from the four streamers.

 

shot_str1 Figure 7 A close-up view of the shot for one of the streamers.