The dip program generates a velocity data file for the seismic and revtime programs. This is the simplest model provided and illustrates the reverse time method. The layers are nearly flat, but some slight dip is included. This geology is similar to regions of West Texas. The velocities of this model have maximum to minimum ratio of 2. A portion of the dip.f program listing is shown in PROGRAM CODE II.
PROGRAM CODE II, a portion of dip.f --- View code