Discussion and future work

The above comparisons lead us to hypothesize that wave-equation migration can yield more accurate estimates of reflectors' amplitudes in places of lateral velocity variation. Since it now images the lower layer below the BSR, it encourages us to study it in detail. The fact that it fades away as it approaches the BSR could lead to some interesting results. It would enable us to do an amplitude analysis of this particular layer.

 

Kir-hydrate-paper-ann
Figure 3 The stacked section after Kirchhoff migration.

 

Wave-ann
Figure 4 Wave-equation migration.

 

AVO-37.5-ann
Figure 5 Common midpoint gather at 37.5 km shows the flat reflector on the right section but not on the left section.

 

AVO-33.4-ann
Figure 6 Common midpoint gather at 33.4 km. Right image shows resolved BSR and the flat reflector at around 5.4 sec. Not visible on the left.