In the following section, I compare some extrapolated shot gathers with shot gathers actually recorded at these positions. Then I outline the computational algorithm of the shot continuation program. Finally, I derive the operator from basic traveltime considerations. The Mathematica script in the appendix `automatically' derives the operator symbolically. Thereby, it documents reproducibly the mathematical derivation of the continuation operator, which otherwise will only be briefly sketched.

Stanford Exploration Project

11/17/1997