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TitleOn the estimation of the regional geoid error in Canada
AuthorHuang, J; Fotopoulos, G; Cheng, M K; Véronneau, M; Sideris, M G
SourceDynamic planet 2005, monitoring and understanding a dynamic planet with geodetic and oceanographic tools; by Tregoning, P (ed.); Rizos, C (ed.); International Association of Geodesy Symposia vol. 130, 2007 p. 272-279 Open Access logo Open Access
LinksOnline - En ligne
Alt SeriesEarth Sciences Sector, Contribution Series 2005061
Meeting Dynamic Planet 2005, IAG/IAPSO/IABO Joint Assembly; Cairns; AU; August 22-26, 2005
Mediapaper; on-line; digital
Subjectsgeophysics; gravity interpretations; gravity; remote sensing; gravity anomalies
Illustrationsgraphs; plots; tables
ProgramCanadian Geodetic Service
AbstractThe geoid errors for the Canadian Gravimetric Geoid 2005 (CGG05) model are estimated from the error information of the satellite and terrestrial gravity data. Calibration is conducted through the application of variance component estimation (VCE) with GPS-leveling data and their associated covariance matrices. Preliminary results suggest that the error of the geoid heights is generally smaller than 6 cm in Canada, with a range from 6 cm to 31 cm for the Western Cordillera area. Overall, the average error of the CGG05 model is estimated at 5.5 cm.

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