Abstract
The Residual Terrain Correction is a standard step in the local geoid estimation procedure by the remove / restore technique; this computation involves the knowledge of a Digital Terrain Model and it is usually resolved by numerical integration by prisms or FFT integration. The first approach requires a long computation time; the second one, faster, implies significant approximations in areas where topography is rough. To properly exploit the large data sets of nowadays available DTM’s, a new formulation for RTC has been studied and implemented.
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References
Baiocchi V., Crespi M., Riguzzi F. (1998). Mean density map for the Italian region by GIS techniques, IGeS Bulletin Vol. 8, pp 93–104. IGeS — DIIAR -Politecnico di Milano
Biagi L., De Stefano R., Sansò F., Sciarretta C. (1998). RTC and density variation in the estimation of local geoids, in press on Proceedings of the 2 nd Joint Meeting of the IGC and IgeC, 7–12 September 1998, Trieste, 1998
Heiskanen W. A., Moritz H. (1956). Physical Geodesy, W. H. Freeman and Company, S. Francisco, London
Bracewell R. N.(1986). The Fourier Transform and its applications, second edition — McGraw-Hill, New York
Brigham E. O. (1974). The Fast Fourier Transform Prentice-Hall, Inc., Englewood Cliffs, N. J.
Forsberg R. (1984). A study of terrain reductions, density anomalies and geophysical inversion methods in gravity field modelling, Reports of the Dep. of Geod. Science and Surveying No 355, OSU, Columbus, Ohio
Forsberg R. (1994). Terrain Effects in Geoid Computations, International School for the Determination and Use of the Geoid, Lecture Notes, pp 101–134. IGeS-DIIAR — Politecnico di Milano
Sansò F., Sciarretta C., Vespe F. (1998). New IGeS formulas for the Terrain Correction, IGeS Bulletin Vol. 1, pp 68–83, IGeS — DIIAR — Politecnico di Milano
Sideris M. G. (1985). A fast Fourier transform method of computing terrain corrections. Manuscripta Geodaetica, Vol. 10, N. 1, pp 66–73
Sideris M. G. (1994). Geoid determination by FFT techniques, International School for the Determination and Use of the Geoid, Lecture Notes, pp 165–229. IGeS-DIIAR — Politecnico di Milano
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© 2001 Springer-Verlag Berlin Heidelberg
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Biagi, L., Sansò, F. (2001). TcLight: a New Technique for Fast RTC Computation. In: Sideris, M.G. (eds) Gravity, Geoid and Geodynamics 2000. International Association of Geodesy Symposia, vol 123. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-04827-6_10
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DOI: https://doi.org/10.1007/978-3-662-04827-6_10
Publisher Name: Springer, Berlin, Heidelberg
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