oa Estimating Nth-order vertical gradients from Nth-order horizontal gradients

References

1. Abramowitz, M. and I. A.Stegun. 1972. Handbook of Mathematical Functions, Dover Publications.
2. Beyer, W. H.1984. CRC Standard Mathematical Tables, 27th ed., CRC Press, 447-448.
3. Bracewell, R.1965. The Fourier transform and its applications. McGraw-Hill.
4. Fitzgerald, D. J.2023. A sliding doors moment. Preview: 224, 32-35.
   [Google Scholar]
5. O’Connell, M. D.2001. A heuristic method of removing micropulsations from airborne magnetic data. The Leading Edge: 20(11), 1242-1246. doi: 10.1190/1.1487256
   https://doi.org/10.1190/1.1487256 [Google Scholar]
6. Press, W. H., B. P.Flannery, S. A.Teukolsky and W. T.Vetterling. 1992. Numerical Recipes in FORTRAN: The Art of Scientific Computing, 2nd ed.Cambridge University Press.
   [Google Scholar]
7. Savitzky, A. and M.J.E.Golay. 1964. Smoothing and differentiation of data by simplified least squares procedures. Analytical Chemistry: 36(8), 1627-1639. doi: 10.1021/ac60214a047
   https://doi.org/10.1021/ac60214a047 [Google Scholar]
8. Thurston, J. B. and B.Fornberg. 2024. Analytic continuation: A tool for aeromagnetic data interpretation. The Leading Edge: 43(4), 228-234. doi: 10.1190/tle43040228.1
   https://doi.org/10.1190/tle43040228.1 [Google Scholar]