Evaluation of terrain corrections through FFT and classical integration in two selected areas of the andes and their impact on geoidal heights

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, el...

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Detalles Bibliográficos
Autores principales:	Gomez, María Eugenia, Bagú, Diego Rubén, Del Cogliano, Daniel Héctor, Perdomo, Raúl Aníbal
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2013
Materias:	Geofísica Classical integration Mendoza Terrain corrections Tierra del fuego Correções do Terreno Integração Clássica
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/85518
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-85518
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Geofísica Classical integration Mendoza Terrain corrections Tierra del fuego Correções do Terreno Integração Clássica
spellingShingle	Geofísica Classical integration Mendoza Terrain corrections Tierra del fuego Correções do Terreno Integração Clássica Gomez, María Eugenia Bagú, Diego Rubén Del Cogliano, Daniel Héctor Perdomo, Raúl Aníbal Evaluation of terrain corrections through FFT and classical integration in two selected areas of the andes and their impact on geoidal heights
topic_facet	Geofísica Classical integration Mendoza Terrain corrections Tierra del fuego Correções do Terreno Integração Clássica
description	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 approaches and their applicability considering their advantages and disadvantages according to the regions under investigation. The analysis allowed us to conclude that classical integration has a better performance than FFT methods, especially in the highest regions where terrain corrections can be overestimated in more than 20 mGals by FFT. Both techniques described show similar results in flat areas. Finally, the effect that the error of terrain corrections computation has on geoidal heights is also discussed and numerically tested. It is proved that an error in gravity anomalies of 20 mGals may cause up to 2 m geoid height error.
format	Articulo Articulo
author	Gomez, María Eugenia Bagú, Diego Rubén Del Cogliano, Daniel Héctor Perdomo, Raúl Aníbal
author_facet	Gomez, María Eugenia Bagú, Diego Rubén Del Cogliano, Daniel Héctor Perdomo, Raúl Aníbal
author_sort	Gomez, María Eugenia
title	Evaluation of terrain corrections through FFT and classical integration in two selected areas of the andes and their impact on geoidal heights
title_short	Evaluation of terrain corrections through FFT and classical integration in two selected areas of the andes and their impact on geoidal heights
title_full	Evaluation of terrain corrections through FFT and classical integration in two selected areas of the andes and their impact on geoidal heights
title_fullStr	Evaluation of terrain corrections through FFT and classical integration in two selected areas of the andes and their impact on geoidal heights
title_full_unstemmed	Evaluation of terrain corrections through FFT and classical integration in two selected areas of the andes and their impact on geoidal heights
title_sort	evaluation of terrain corrections through fft and classical integration in two selected areas of the andes and their impact on geoidal heights
publishDate	2013
url	http://sedici.unlp.edu.ar/handle/10915/85518
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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

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