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Towards the first kinematic reference frame for Chile

Urheber*innen

Tarrío Mosquera,  Jose Antonio
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Inzunza Muñoz,  Jesarella
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Cáceres Venegas,  Catalina
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Vásquez Tejo,  Valeria
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Caverlotti Silva,  Marcelo
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Isla Rodríguez,  Fernando
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Jeldres Vergara,  Gabriel
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Urrutia Vidal,  Rodrigo
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Mardones Castro,  Cristian
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Zitation

Tarrío Mosquera, J. A., Inzunza Muñoz, J., Cáceres Venegas, C., Vásquez Tejo, V., Caverlotti Silva, M., Isla Rodríguez, F., Jeldres Vergara, G., Urrutia Vidal, R., Mardones Castro, C. (2023): Towards the first kinematic reference frame for Chile, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-0137


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016400
Zusammenfassung
Law 21420 establishes modifications to the Chilean mining code, that mandates the regulatory agency for mining concessions, Servicio Nacional de Geología y Minería de Chile (SERNAGEOMIN) to employ SIRGAS as a modern reference framework (RF) for the management of mining geospatial information in Chile, replacing PSAD56 (South American Provisional Datum 1956) and SAD69 (South American Datum 1969). In this project, the processing center and geodetic analysis USC develops the process to allow SERNAGEOMIN to migrate from a classic RF to a modern RF called REDGEOMIN (Red Geodésica para Minería), aligned to SIRGAS. REDGEOMIN is a kinematic RF with an associated deformation model called ADELA (Analysis of DEformation beyond Los Andes). To date, REDGEOMIN has four solutions aligned to IGS reference frame (REDGEOMIN 2019.00, 2020.00, 2021.00, and 2022.00) calculated with approximately 210 stations. From these stations, time series were calculated between the years 2009 to 2022, applying a joint model that contemplates the interseismic, coseismic, and post-seismic periods, where the latter describes the period after the telluric movement applying for their calculation combined logarithmic and exponential functions. In addition to time series, the Thin Plate Spline (TPS) method is used to interpolate what is happening between GNSS stations. The study consists of three phases: the first, the calculation of the REDGEOMIN-ADELA which is constantly updating the time series, the second, the calculation of the transformation parameters; this phase is finished and finally, the project culminates with the implementation of the REDGEOMIN-ADELA as the first kinematic reference frame that includes seismic events in Chile.