Postscript plot bvas.ps generated by bvas.

A summary, single page, plot of velocity and semblance as a function of frequency is given by bvas.ps. In general, there will be a sensible agreement between high semblance values, small error bars, and good quality for that frequency in the corresponding bvasqc.ps plot. Zones with poor signal will have low semblance values, as will also be the case if the interval of analysis is too large for a single velocity solution (ie. an analysis zone with more than one soil velocity). Figure 21 shows a typical bvas.ps plot.

Figure 21: Summary plot showing velocity and semblance.