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Título

Red gravimétrica del territorio histórico de Gipuzkoa

Otros títulosGravimetric network of the historic territory of Gipuzkoa
AutorSevilla, Miguel J. ; Vélez, Emilio ; Zurutuza, J.
Palabras claveGravimetría
Redes gravimétricas
Guipuzcoa
Geodesia
Geofísica
Fecha de publicación2007
EditorCSIC-UCM - Instituto de Astronomía y Geodesia (IAG)
CitaciónPublicacion. Instituto de Astronomía y Geodesia. 2007, nº202.
ResumenIn the historical territory of Gipuzkoa, a new gravity network has been settled down. The network will be the reference for the future gravity related geodetic tasks. The network has eleven stations with a maximum distance between two consecutive stations of about 20 km. Also, it is connected with the absolute gravity station of the lA G in Madrid by means of a round trip itinerary with gravity measurements in Madrid, Aranda del Duero, Miranda de Ebro and Donostia with distances between stations of about 150 km. This last station of Donostia has been considered as reference station for the itineraries that configure the net of Gipuzkoa. To obtain the gravity values in the 11 stations, three round trip itineraries have been performed, where the starting and closing measure is the station of Donostia. The used instrument has been a gravimeter LaCoste & Romberg model GRA VITON-EG-1194. The relative precision of this gravimeter is in the order ofthe 4 or 5 J"Gal, that together with the absolute gravity value of the station of the lAG in Madrid, which is known with an absolute precision of ±9.0xI0-8 ms", guarantee a final precision of lO J"Gal. The coordinates ofthe stations have been determined by GPS in the WGS84 system. This, together with the software packages used, ensure thal the tidal and derive corrections are within the mentioned precision. A total of 924 gravity observations have been made and the adjustment shows a mean standard error of 2 J"Gal, vely below the theoretical precision, what guaranlees the reliability of the results.
DescripciónSEVILLA, M.J., VÉLEZ, E., ZURUTUZA, J. "Red gravimétrica del territorio histórico de Gipuzkoa". En: 5ª Asamblea Hispano Portuguesa de Geodesia y Geofísica, (Sevilla, 30 de enero - 3 de febrero de 2006)
URIhttp://hdl.handle.net/10261/23339
ISSN0213-6198
Aparece en las colecciones: (IAG) Comunicaciones congresos
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