1887
Volume 33, Issue 3-4
  • ISSN: 0812-3985
  • E-ISSN: 1834-7533

Abstract

Complete Bouguer corrections have been computed over the Australian mainland and Tasmania on a 9 arc-second grid (∼250 m spatial resolution) from version 2 of the GEODATA digital elevation model (DEM) of Australia. These include the Bouguer plate correction to the geoid (mean sea level) and the planar terrain correction residual to this plate out to a radius of 50 km (beyond Hammer zone M). A constant topographic density of 2670 kg.m-3 has been used for both correction terms. The terrain corrections were computed using a planar two-dimensional fast Fourier transform (FFT) algorithm.

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2002-09-01
2026-01-13

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References

  1. Carroll, D., and Morse, M.P., 1996, A national digital elevation model for resource and environmental management: Cartography, 25, 395-405.
  2. Chapin, D.A., 1996, The theory of the Bouguer gravity anomaly: A tutorial: The Leading Edge, 15, 361-363.
  3. Cogbill, A.H., 1990, Gravity terrain corrections computed using digital terrain models: Geophysics, 45, 109-112.
  4. Ervin, C.P., 1977, Theory of the Bouguer anomaly: Geophysics, 42, 1468.
  5. Featherstone, W.E., and Dentith, M.C., 1997, A geodetic approach to gravity correction for geophysics: Computers and Geosciences, 23, 1063-1070.
  6. Featherstone, W.E., and Kirby, J.F., 2000, The correction of aliasing in gravity anomalies and geoid heights using digital terrain data: Geophysical Journal International, 141, 204-212.
  7. Fullagar, P.K., Hughes, N.A., and Paine, J., 2000, Drilling-constrained 3D gravity interpretation: Exploration Geophysics, 31, 17-23.
  8. Geoscience Australia, 2001, National Mapping - Products, Digital Elevation Data [Web page]: Accessed 7 October 2002. Available at http://www.auslig.gov.au/ products/digidat/dem.htm.
  9. Forsberg, R., 1985, Gravity field terrain effect computations by FFT: Bulletin Géodésique, 59, 342-360.
  10. Hammer, S., 1939, Terrain corrections for gravimeter stations: Geophysics, 4, 184-194.
  11. Huang, J., Vanicek, P., Pagiatakis, S.D., and Brink, W., 2001, Effect of topographical density on geoid in the Canadian Rocky Mountains: Journal of Geodesy, 74, 805-815.
  12. Hutchinson, M.F., 1989, A new procedure for gridding elevation and stream line data with automatic removal of spurious pits: Journal of Hydrology, 106, 211-232.
  13. Hutchinson, M.F. (ed.), 2001, GEODATA 9 second DEM (version 2): Data users guide: Geoscience Australia.
  14. Karl, J.H., 1971, The Bouguer correction for the spherical Earth: Geophysics, 36, 761-762.
  15. Kirby, J.F., and Featherstone, W.E., 1999, Terrain correcting the Australian gravity data base using the national digital elevation model and the fast Fourier transform: Australian Journal of Earth Sciences, 46, 555-562.
  16. Kirby, J.F., and Featherstone, W.E., 2001, Anomalously large gradients in the GEODATA 9 SECOND Digital Elevation Model of Australia, and their effects on gravimetric terrain corrections: Cartography, 30, 1-10.
  17. LaFehr, T.R., 1991, Standardisation in gravity correction: Geophysics, 56, 1170-1178.
  18. LaFehr, T.R., 1998, On Talwani's “Errors in the total Bouguer correction”: Geophysics, 63, 1131-1136.
  19. Leaman, D.E., 1998, The gravity terrain correction - practical considerations: Exploration Geophysics, 29, 476-471.
  20. Li, Y.C., and Sideris, M.G., 1994, Improved gravimetric terrain corrections: Geophysical Journal International, 119, 740-752.
  21. Ma, X.Q., and Watts, D.R., 1994, Terrain correction program for regional gravity surveys: Computers and Geosciences, 20, 961-972.
  22. Martinec, Z., Vanicek, P., Mainville, A., and Veronneau, M., 1996, Evaluation of topographical effects in precise geoid determination from densely sampled heights: Journal of Geodesy, 70, 746-754.
  23. Moritz, H., 1968, On the use of the terrain correction in solving Molodensky's problem: OSU Report No. 108, Department of Geodetic Science and Surveying, Ohio State University.
  24. Murray, A.S., 1997, The Australian national gravity database: AGSO Journal of Australian Geology and Geophysics, 17, 145-155.
  25. Nowell, D.A.G., 1999, Gravity terrain corrections - an overview: Journal of Applied Geophysics, 42, 117-134.
  26. Qureshi, I.R., 1976, Two-dimensionality on a spherical Earth - a problem in gravity corrections: Pure and Applied Geophysics, 114, 91-93.
  27. Roelse, A., Granger, H.W., and Graham, J.W., 1971, The adjustment of the Australian levelling survey - 1970-71: Report 12, National Mapping Council.
  28. Schwarz, K.P., Sideris, M.G., and Forsberg, R., 1990, The use of FFT techniques in physical geodesy: Geophysical Journal International, 100, 485-514.
  29. Sideris, M.G., 1985, A fast Fourier transform method of computing terrain corrections: manuscripta geodaetica, 10, 66-73.
  30. Smith, D.A., 2000, The gravitational attraction of any polygonally shaped vertical prism with inclined top and bottom faces: Journal of Geodesy, 74, 414-420.
  31. Smith, D.A., Robertson, D.S., and Milbert, D.G., 2001, Gravitational attraction of local crustal masses in spherical coordinates: Journal of Geodesy, 74, 783-795.
  32. Takin, M., and Talwani, M., 1966, Rapid computation of the gravitational attraction of the topography on a spherical Earth: Geophysical Prospecting, 24, 119.
  33. Talwani, M., 1998, Errors in the total Bouguer correction: Geophysics, 63, 1125-1130.
  34. Torge, W., 1991, Geodesy (second edition): De Gruyter.
  35. Tsoulis, D., 2001, Terrain correction computations for a densely sampled DTM in the Bavarian Alps: Journal of Geodesy, 75, 291-307.
  36. Vanicek, P., Novak, P., and Martinec, Z., 2001, Geoid, topography, and the Bouguer plate or shell: Journal of Geodesy, 75, 210-215.
/content/journals/10.1071/EG02161
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  • Article Type: Research Article
Keyword(s): Australia; Bouguer correction; digital elevation model (DEM); fast Fourier transform (FFT); gravity anomaly; terrain correction

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