Figure shows the spatial distribution for the shots on the left, and receivers on the right. Notice the gap in the source distribution due to the production platform for the Alba oil field. Additionally, Figure shows the distribution of the CMPs on the left, and the offsets on the right. Remember, the final solution for the inverse problem is a regular common-azimuth cube where all the crossline offsets are collapsed to zero crossline offset. Figure shows a section of the input data. The figure displays the five dimensions of the prestack data cube. The top panel presents the inline-CMP () and crossline-CMP () sections for a constant inline-offset (hx)=-224 m, and constant crossline-offset (hy)=-16.5 m. The center panel presents the inline sections for a constant =550 m, and a constant hy=-16.5 m. The bottom panel presents the crossline sections for a constant =3100 m, and constant hx=-224 m. Observe the sparsity and the holes of the data due to acquisition problems.