Abstract
The Geocentric Reference System for the Americas (SIRGAS) in its realization of ITRF94, epoch 1995.4 in South America was introduced in January 2005 as the official reference frame in Colombia. It replaces the classical horizontal datum (BOGOTA Datum) defined in 1941. This official adoption implies that all coordinates in the country shall refer to SIRGAS. Since this decision affects the whole geodetic and surveying activities of the country, the National Geographical Institute ‘Agustin Codazzi’ (IGAC) has implemented a strategy to facilitate this adoption and to generalise the reliable use of SIRGAS. We present here the densification of the SIRGAS network in our country (MAGNA network), the continuously operating network (MAGNA-ECO network), and the introduced measures to make feasible the modernisation of the geometrical reference system in Colombia. These are in particular the specifications for the use of the new reference frame and the transformations from the old to the new system.
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Martínez, W.A., Sánchez, L. (2009). Realization of the SIRGAS Reference Frame in Colombia. In: Drewes, H. (eds) Geodetic Reference Frames. International Association of Geodesy Symposia, vol 134. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-00860-3_29
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DOI: https://doi.org/10.1007/978-3-642-00860-3_29
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