ESTIMATION OF NEAR SURFACE VELOCITY

Kjartansson found that he could locate near surface anomalies but he did not provide a method of estimating velocity. In this section I propose a two-part method of estimating the velocity:

• Slant stack inversion of trace power data to locate the velocity anomalies in midpoint and depth.
• Iterative downward continuation of the data through the near surface model obtained in the first step to determine v(x,z).

The method is not yet complete and both aspects of the problem still require work. In this section I will present how each part of the method works.