Reply to a discussion about the 'Hyperbolic tilt angle method' by Zhou et al.

摘要

In the original HTA paper it was shown that the positive maxima of the HTA are effective in tracking edges of potential field anomalies. However it was also pointed out that an additional negative contour value is present, and the plotting of only the values of the HTA over a user-selected threshold was reccomended. Fig. l(a) shows the gravitational anomaly from a single rectangular source and Fig. l(b) shows the HTA. The positive maxima of the latter tracks the edges of the body extremely well, but the spurious negative contour can also be seen.