Downward continuation

Field data migration

Application of subroutine gazadj() to the Gulf of Mexico data set processed in earlier chapters yields the result in Figure 8.13.

wgphase
Figure 13. Phase shift migration of Figure .

EXERCISES:

1. Devise a mathematical expression for a plane wave that is an impulse function of time with a propagation angle of 15$^\circ$ from the vertical $z$-axis in the plus $z$ direction. Express the result in the domain of
2. [] (a) $(t , x , z)$
3. [] (b) $( \omega ,x,z)$
4. [] (c) $( \omega , k_x , z)$
5. [] (d) $( \omega ,p,z)$
6. [] (e) $(\omega,k_x,k_z)$
7. [] (f) $( t , k_x , k_z)$

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