DISCUSSION

The method is likely to work better than static correction in regions where large static shifts are required. Two methods commonly applied in regions of extreme topography are refraction statics or some stochastic method like simulated annealing. Refraction statics are unsatisfactory in regions of extreme topography because the model no longer fits the data Bevc (1991). When simulated annealing is used the static corrections are usually large, which means that the assumption of straight ray-paths is not valid. Wave-equation extrapolation solves these problems.

Although equation ( 1) offers one implementation of the extrapolation, it may not be the best for my purposes, so further scrutiny of the problem is required.