Digital terrain model evaluation and computation of the terrain correction and indirect effect in South America

The main objectives of this paper are to compare digital terrain models, to show the generated models for South America and to present two applications. Shuttle Radar Topography Mission (SRTM) produced the most important and updated height information in the world. This paper addresses the attention...

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Detalles Bibliográficos
Autores principales: Blitzkow, Denizar, Oliveira Cancoro de Matos, Ana C., Pimentel Cintra, Jorge
Formato: Articulo
Lenguaje:Inglés
Publicado: 2009
Materias:
Geofísica
Radar altimetry
Height
Digital terrain model
Altimetria de radar
Altura
Modelo digital del terreno
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/133655
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-133655
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Geofísica
Radar altimetry
Height
Digital terrain model
Altimetria de radar
Altura
Modelo digital del terreno
spellingShingle Geofísica
Radar altimetry
Height
Digital terrain model
Altimetria de radar
Altura
Modelo digital del terreno
Blitzkow, Denizar
Oliveira Cancoro de Matos, Ana C.
Pimentel Cintra, Jorge
Digital terrain model evaluation and computation of the terrain correction and indirect effect in South America
topic_facet Geofísica
Radar altimetry
Height
Digital terrain model
Altimetria de radar
Altura
Modelo digital del terreno
description The main objectives of this paper are to compare digital terrain models, to show the generated models for South America and to present two applications. Shuttle Radar Topography Mission (SRTM) produced the most important and updated height information in the world. This paper addresses the attention to comparisons of the following models: SRTM3, DTM2002, GLOBE, GTOPO30, ETOPO2 and ETOPO5, at the common points of the grid. The comparisons are limited by latitudes 60° S and 25 ° N and longitudes 1000 W and 250 W. All these data, after some analysis, have been used to create three models for South America: SAMlmvl, SAM_lmv2 (both of 1 ’ grid spacing) and SAM_30s (30" grid spacing). Besides this effort, the three models as well as STRM were evaluated using Bench Marks (BM) in Brazil and Argentina. This paper also shows two important geodesy and geophysics applications using the SAM_lmvl: terrain correction (one of the reductions applied to the gravity acceleration) and indirect effect (a consequence of the reduction of the external mass to the geoid). These are important at Andes for a precise geoid computation.
format Articulo
Articulo
author Blitzkow, Denizar
Oliveira Cancoro de Matos, Ana C.
Pimentel Cintra, Jorge
author_facet Blitzkow, Denizar
Oliveira Cancoro de Matos, Ana C.
Pimentel Cintra, Jorge
author_sort Blitzkow, Denizar
title Digital terrain model evaluation and computation of the terrain correction and indirect effect in South America
title_short Digital terrain model evaluation and computation of the terrain correction and indirect effect in South America
title_full Digital terrain model evaluation and computation of the terrain correction and indirect effect in South America
title_fullStr Digital terrain model evaluation and computation of the terrain correction and indirect effect in South America
title_full_unstemmed Digital terrain model evaluation and computation of the terrain correction and indirect effect in South America
title_sort digital terrain model evaluation and computation of the terrain correction and indirect effect in south america
publishDate 2009
url http://sedici.unlp.edu.ar/handle/10915/133655
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AT oliveiracancorodematosanac digitalterrainmodelevaluationandcomputationoftheterraincorrectionandindirecteffectinsouthamerica
AT pimentelcintrajorge digitalterrainmodelevaluationandcomputationoftheterraincorrectionandindirecteffectinsouthamerica
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