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A Terrestrial Reference Frame (TRF), coordinates and velocities for South American stations: contributions to Central Andes geodynamics

机译:南美站的地面参考系(TRF),坐标和速度:对安第斯山脉中部地球动力学的贡献

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Satellite positioning systems allow the fixing of the location of a point onthe Earth's surface with very good precision and accuracy. To do this,however, it is necessary to determine the point coordinates taking accountthe reference system and the movements that affect them because of tectonicplate movements. These reference systems are materialized by a significantnumber of continuous measurement stations in South America. In SIRGAS(Sistema de Referencia Geocéntrico para las Américas), there arefour Analysis Centers that process the data collected from satellites of theGlobal Navigation Satellite Systems (GNSS), with the primary purpose tomaintain the international terrestrial reference frame through calculationof the coordinates and velocities of the continuous GNSS stations of theSIRGAS-CON Network.In this work, we demonstrate the quality of the solutions from CIMA, one ofthe SIRGAS official processing centers operating in Mendoza, Argentina, incomparison with other South American processing centers. The importance ofprecise calculations of coordinates and velocities in a global frame is alsoshown. Finally, we give estimations of velocities from stations locatedwithin deformation zones in the Central Andes.
机译:卫星定位系统允许以非常好的精度和准确性将点固定在地球表面上。但是,为此,必须考虑参考系统和由于构造板块运动而影响其的运动来确定点坐标。这些参考系统在南美的大量连续测量站中得到了体现。在SIRGAS(Sistema de ReferenciaGeocéntricopara lasAméricas)中,有四个分析中心处理从全球导航卫星系统(GNSS)的卫星收集的数据,其主要目的是通过计算卫星的坐标和速度来维护国际地面参考系SIRGAS-CON网络的连续GNSS站。在这项工作中,我们展示了CIMA解决方案的质量,CIMA是在阿根廷门多萨运营的SIRGAS官方加工中心之一,与其他南美加工中心相比。还显示了在全局框架中精确计算坐标和速度的重要性。最后,我们给出了安第斯山脉中部变形带内测站的速度估算值。

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