Geodetic Survey Division Division des levés géodésiques Natural Resources Canada Ressources naturelles Canada Geomatics Géomatique Canada IGS Combination of the Apparent Geocenter R. Ferland Geodetic Survey Division Geomatics Canada
Geodetic Survey Division Division des levés géodésiques Natural Resources Canada Ressources naturelles Canada Geomatics Géomatique Canada IGS Realization of ITRF
Geodetic Survey Division Division des levés géodésiques Natural Resources Canada Ressources naturelles Canada Geomatics Géomatique Canada Input information Analysis centers (AC) solutions Global network associate analysis center (GNAAC) solutions Apriori solutions EMRESAJPLNGSSIOCOD GFZ = ACs MIT NCLJPL GNAACs = Other sources Weekly igs i-1 Cumulative IGS i-1 ITRF = Apriori Station Logs …. IGSCB
Geodetic Survey Division Division des levés géodésiques Natural Resources Canada Ressources naturelles Canada Geomatics Géomatique Canada Summary Rigorous combination of the Analysis Centers weekly SINEX solutions including: –Station Coordinates –Earth Rotation Parameters –Apparent Geocenter Use of the covariance information All parameters are aligned to the current ITRF Consistent with other IGS products
Geodetic Survey Division Division des levés géodésiques Natural Resources Canada Ressources naturelles Canada Geomatics Géomatique Canada
Geodetic Survey Division Division des levés géodésiques Natural Resources Canada Ressources naturelles Canada Geomatics Géomatique Canada
Geodetic Survey Division Division des levés géodésiques Natural Resources Canada Ressources naturelles Canada Geomatics Géomatique Canada
Geodetic Survey Division Division des levés géodésiques Natural Resources Canada Ressources naturelles Canada Geomatics Géomatique Canada Benefits Provide a unique consistent and up-to-date weekly station coordinates/ERP/Apparent Geocenter solution. Improved and self consistent realization of ITRF. Nearly exact transformations for future IGS realization of ITRF. Formal sigmas: –XY axis : 5-10mm –Z axis : 10mm