2013
DOI: 10.1590/s1982-21702013000300004
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Evaluation of terrain corrections through FFT and classical integration in two selected areas of the Andes and their impact on geoidal heights

Abstract: As part of the regional geoid modeling, terrain corrections were computed in Tierra del Fuego island and in the west side of the province of Mendoza. The first place is located in the southernmost region of Argentina and Mendoza is in the center-west of this country. Considering both study areas, elevations range from 0 m to 6500 m. The classical integration of prism contribution and the 2-D FFT technique were used to estimate terrain corrections. This study aims at discussing the results obtained by both appr… Show more

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“…In order to force the operation to converge, it is possible to smooth the DEM to small gradients. However, this requires compromise between the best representation of the topography and the application of the method (Gomez et al, 2013).…”
Section: Fourier Transformationmentioning
confidence: 99%
“…In order to force the operation to converge, it is possible to smooth the DEM to small gradients. However, this requires compromise between the best representation of the topography and the application of the method (Gomez et al, 2013).…”
Section: Fourier Transformationmentioning
confidence: 99%