Abstract
The South American Terrestrial Reference System (SIRGAS) is defined according to the IERS conventions. The reference frame is realized by a set of three-dimensional geocentric coordinates of about 60 stations derived from a continental GPS campaign in 1995 (epoch 1995.4). The time evolution of station coordinates is defined by the true station motions, in a linear approximation given by the station velocities. These velocities may either be determined from continuous monitoring or from repeated GPS campaigns. The actual continuous monitoring within the IGS Regional Network for South America includes 16 stations on the continent. The linear station velocities derived from two years of observations are presented. As an example of irregular deformations, results from repeated GPS campaigns in a boundary zone along the Caribbean and South American plates are shown. Linear station velocities are estimated as well as unsteady station motions as a consequence of an earthquake. The adequate consideration of these motions in a global geodetic observing system is an important issue.
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Literature
Angermann D., Klotz J., Michel G., Reigber Ch., Reinking J.: Großräumige GPS-Netze zur Bestimmung der Krustenkinematik in Zentralasien und Südamerika. DVW Schriftenreihe (28) 79–93, 1997.
Drewes H.: Time evolution of the SIRGAS reference frame. Springer, IAG Symposia, No. 118, 174–179, 1998.
Freymueller J.T., Kellogg J.N., Vega V.: Plate motions in the North Andes region. J. Geophys. Res. (98) 21853–21863, 1993.
Herring T.A.: MIT T2 Associate Analysis Center Report. IGS 1996 Annual Report, 255–267, IGS Central Bureau, JPL, Pasadena 1997.
Hoyer M., Arciniegas S., Pereira K., Fagard H., Maturana R., Torchetti R., Drewes H., Kumar M., Seeber G.: The definition and realization of the reference System in the SIRGAS project. Springer, IAG Symposia, No. 118,167–173, 1998
Kaniuth K., Drewes H., Stuber K., Tremel H., Moirano J.: Results of the SIRGAS 95 GPS network processing at DGFI/I. Springer, IAG Symposia, No. 118, 180–186, 1998.
Kaniuth K., Drewes H., Stuber K., Tremel H., Hernandez N., Hoyer M., Wildermann E., Kahle H.-G., Straub C: Crustal deformation along the Caribbean — South American plate boundary derived from the CASA GPS project. Springer, IAG Symposia, No. 118, 417–422, 1998.
Kellogg J.V., Vega V.: Tectonic development of Panama, Costa Rica and the Colombian Andes: Constraints from Global Positioning System geodetic studies and gravity. Geol. Soc. Am. Special Paper 295, 1995.
Kendrick E.C., Bevis M., Smalley Jr. R.F., Cifuentes O., Galban F.: Current rates of convergence across the Central Andes: Estimates from continuous GPS observations. Geophys. Res. Lett. (26) 541–544, 1999.
Leffler L., Stein S., Mao A., Dixon T., Ellis M. A., Ocola L., Sacks I.S.: Constraints on present-day shortening rate across the central eastern Andes from GPS data. Geophys. Res. Lett. (24) 1031–1034, 1997.
Norabuena E., Leffler-Griffin L., Mao A., Dixon T., Stein S., Sacks LS., Ocola L., Ellis M.: Space geodetic observations of Nazca-South America convergence across the Central Andes. Science (279) 358–362, 1998.
Reigber Ch., Xia Y., Michel G.W., Klotz J., Angermann D.: The Antofagasta 1995 earthquake: Crustal deformation pattern as observed by GPS and D-INSAR. Proc. 3rd ERS Symp. on Space at the Service of our environment (ESA SP-414) 507-513, 1997.
Ruegg J.C., and 14 others: The M = 8.1 Antofagasta (North Chile) earthquake of July 30, 1995: First results from teleseismic and geodetic data. Geophys. Res. Lett. (23) 917–920, 1996.
Seemüller W., Drewes H.: The IGS regional associate analysis center for South America at DGFI/I. Springer, IAG Symposia, No. 118,211-215, 1998.
Sirgas Final Report, Working Groups I and II. IBGE Rio de Janeiro 1997.
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Drewes, H. et al. (2000). Monitoring the Continental Reference Frame in South America. In: Rummel, R., Drewes, H., Bosch, W., Hornik, H. (eds) Towards an Integrated Global Geodetic Observing System (IGGOS). International Association of Geodesy Symposia, vol 120. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-59745-9_24
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DOI: https://doi.org/10.1007/978-3-642-59745-9_24
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