HR: 10:35h
AN: G32A-02 INVITED     [Abstracts]
TI: Status and Future Developments of SIRGAS
AU: * Fortes, L
EM: luiz.fortes@ibge.gov.br
AF: Brazilian Institute of Geography and Statistics, Av. Brasil 15671, Parada de Lucas, Rio de Janeiro, RJ 21241-051, Brazil
AU: Lauría, E
EM: elauria@igm.gov.ar
AF: Geographic Military Institute, Cabildo 381, Buenos Aires, 1426, Argentina
AU: Brunini, C
EM: claudiobrunini@yahoo.com
AF: National University of La Plata, Paseo del Bosque S/N, La Plata, 1900, Argentina
AU: Amaya, W
EM: wamaya@cnr.gob.sv
AF: National Cadastre and Geographic Institute, 1ª Calle Pte. y 43 Ave. Norte, 2310, San Salvador, El Salvador
AU: Sanchez, L
EM: sanchez@dgfi.badw.de
AF: Deutsches Geodatisches Forschungsinstitut, Marstallplatz 8, Munich, D-80539, Germany
AU: Drewes, H
EM: drewes@dgfi.badw.de
AF: Deutsches Geodatisches Forschungsinstitut, Marstallplatz 8, Munich, D-80539, Germany
AB: This paper presents the status and future developments of the SIRGAS (Geocentric Reference System for the Americas) project. Since its creation, in 1993, SIRGAS has coordinated two continental GPS campaigns in 1995 an 2000, responsible for the establishment of a very accurate 3D reference frame in the region. First focusing on South America, the project has expanded its scope to Latin America since 2001. Currently the maintenance of the SIRGAS reference frame is carried out through more than 80 continuous operating GNSS (Global Navigation Satellite System) stations available in the region, whose data is officially processed by the International GNSS Service (IGS) Regional Network Associate Analysis Centre for SIRGAS (IGS RNACC-SIR), functioning at the DGFI (Deutsches Geodatisches Forschungsinstitut), in Munich, to generate weekly coordinates and velocity information of each continuous GNSS station. Since October 2006, five additional experimental processing centers - located at the Brazilian Institute of Geography and Statistics (IBGE), National Institute of Statistics, Geography and Informatics of Mexico (INEGI), Military Geographic Institute of Argentina (IGM), University of La Plata (UNLP), Argentina, and Geographic Institute Agustín Codazzi, Colombia (IGAC) - have also been processing data from those stations in order to assume the official processing responsibility in near future. Many Latin American countries have already adopted SIRGAS as their new official reference system. Besides, efforts have been carried out in order to have the national geodetic networks of Central American countries connected to the SIRGAS reference frame, which will be accomplished by a GNSS campaign scheduled for the first semester of 2007. In terms of vertical datum, SIRGAS continues to coordinate with each member country all the necessary efforts towards making the geodetic leveling data available together with gravity information in order to support the computation of geopotential numbers, to be unified in a continental adjustment.
UR: http:sirgas.igm.gov.ar
DE: 1229 Reference systems
SC: Geodesy [G]
MN: 2007 Joint Assembly