This paper reports the present status of SIRGAS 2000 campaign processing, carried out by the IBGE analysis center. Besides IBGE, University of S茫o Paulo (USP) and Sao Paulo State University (UNESP) are collaborating with some data analysis and processing. While USP has been providing regional...
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(2001). The vertical reference frame for the Americas - The SIRGAS 2000 GPS campaign. In: Proceedings of the IAG Symposium on Vertical Reference Systems, Cartagena, ColombiaDREWES, H.; FORTES, L. P. S.; HOYER, M.; LUZ, R. T. The vertical reference frame for the Americas - the SIR...
the most recent SIRGAS reference frame solution called SIRGAS2022, which is based on the second SIRGAS reprocessing campaign performed by DGFI-TUM to obtain homogeneously computed SIRGAS daily and weekly station position solutions referring to the IGS reference frame IGS14/IGb14 since January 2000....
The network was extended to Central and North America in 2000 and immediately afterwards converted to a frame of continuously observing GNSS stations instead of short-term campaigns. The linear station position changes (velocities) were estimated by a multi-year least squares adjustment of weekly ...
Based on data provided by the USGS for the period 2000-2011, and after the Global Congruency test, we selected four events associated with unstable geodetic network points. The resulting strains were estimated based on the finite element method using networks of points considered unstable connected ...
Katia D. PereiraS. M. A. Costa,,K. D. Pereira.The Integration of Brazilian Geodetic Network into SIRGAS. IAG Symposia . 1997COSTA, S.M.; BEATTIE, D.; PEREIRA, K.D.P.. The integration of brazilian geodetic network into SIRGAS- preliminary results. IGGOS, Munique, 1998....
Five years of GPS observations from 2000 to 2004 were selected in order to have a sufficient time period with enough coverage for the considered stations. Daily solutions were generated with the Bernese GPS Software 5.0 using IGS precise ephemeris, clocks and ERP. The normal equations were then ...
After the first SIRGAS campaign carried out in 1995, a second GPS campaign was performed during a ten days period in May 2000. This time the project did not only include the South American countries but also Central and North America as well as the Caribbean. DGFI has processed the entire...