Figure 2: Predicted vertical coherence function at 75 Hz for the AET for wavefront ID 139 and -126. The observed AET coherence function is an average over all resolved wavefronts.
In Fig. 2 the calculated coherences using standard GM parameters for vertical separations for wavefront ID 139 and -126 are shown. Wavefront ID 139 has one of the deepest turning points and ID -126 has one of the shallowest turning points. The phase structure function is normalized so
