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Título: | Geoide em Portugal - Novos resultados |
Otros títulos: | Geoid in Portual - New Results | Autor: | Catalão, J.; Vasconcelos, M.; Kol, H.; Sevilla, Miguel J. CSIC | Palabras clave: | Geodesia Geofísica Geoide Modelo Digital del Terreno (MDT) Portugal |
Fecha de publicación: | 2003 | Editor: | Universidad Politécnica de Valencia | Citación: | 3ª Asamblea Hispano-Portuguesa de Geodesia y Geofísica: proceedings. Valencia : UPV, 2003, p. 185-189. | Resumen: | In 1993, the Instituto Portugués de Cartografia e Cadastro started a new gravimetric project, to perform a more precise and accurate gravity field model in Portugal mainland. With this new gravity data and with a new Digital Terrain Model (obtained from the 1:50 000 cartography) a new gravimetric geoid model was constructed. The method used for the computations was the Stokes ' integral in convolution form and the Fast collocation. For both methods the input data were gridded gravity anomalies. The terrain effects were computed with the new Digital Terrain Model and applied to the gravity data taking into account the corresponding indirect effect. In this comunication will be presented the state of the art of the geoid determination in Portugal mainland. This project ICA (lberian-Canarias-Acores geoid) is a join project of the Instituto Portugués de Cartografia e Cadastro, Faculdade de Ciencias de Lisboa and Instituto de Astronomia y Geodesia da Universidade Complutense de Madrid, aimed by the determination of a high precision gravimetric geoid in a vast area from the Iberian peninsula to the Açores islands extending to the south to Canarias islands. | Descripción: | Comunicación presntada a la 3ª Asamblea Hispano-Portuguesa de Geodesia y Geofísica = 3ª Assembleia Luso-Espanhola de Geodesia e Geofisica, celebrada en Valencia entre el 4 y el 8 de febrero de 2002. | URI: | http://hdl.handle.net/10261/25677 | ISBN: | 84-9705-297-8 (o.c.) 4-9705-298-6 (v. 1) |
Aparece en las colecciones: | (IAG) Comunicaciones congresos |
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congreso32_2002.pdf | 3,04 MB | Adobe PDF | Visualizar/Abrir |
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