SIRGAS core network stability

CAPÍTULO DE LIBRO PUBLICADO POR EDITORIAL EXTERNA. PARTE DE LA SERIE DE LIBROS DEL SIMPOSIO DE LA ASOCIACIÓN INTERNACIONAL DE GEODESIA (IAG SYMPOSIA, volumen 143). The main objective of SIRGAS (Sistema de Referencia Geocéntrico para las Américas) is to provide an accurate spatial and time-referenced...

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Detalles Bibliográficos
Autores principales: Drewes, Hermann, Sánchez, Laura, Brunini, Claudio Antonio, Mackern, María Virginia, Martinez Diaz, William
Formato: Parte de Libro
Lenguaje:Inglés
Publicado: Editorial externa 2020
Materias:
SIRGAS
Regional reference frames
ITRF densifications
Seismic effects on reference frames
Acceso en línea:http://repositorio.umaza.edu.ar//handle/00261/1649
https://link.springer.com/chapter/10.1007/1345_2015_143
Aporte de:
UMAZA Digital (Universidad MAZA - Mendoza) de Universidad Juan Agustín MAZA
id I56-R16200261-1649
record_format dspace
institution Universidad Juan Agustín MAZA
institution_str I-56
repository_str R-162
collection UMAZA Digital (Universidad MAZA - Mendoza)
language Inglés
orig_language_str_mv eng
topic SIRGAS
Regional reference frames
ITRF densifications
Seismic effects on reference frames
spellingShingle SIRGAS
Regional reference frames
ITRF densifications
Seismic effects on reference frames
Drewes, Hermann
Sánchez, Laura
Brunini, Claudio Antonio
Mackern, María Virginia
Martinez Diaz, William
SIRGAS core network stability
description CAPÍTULO DE LIBRO PUBLICADO POR EDITORIAL EXTERNA. PARTE DE LA SERIE DE LIBROS DEL SIMPOSIO DE LA ASOCIACIÓN INTERNACIONAL DE GEODESIA (IAG SYMPOSIA, volumen 143). The main objective of SIRGAS (Sistema de Referencia Geocéntrico para las Américas) is to provide an accurate spatial and time-referenced infrastructure as a basis for Earth System research and to support scientific and practical applications based on high-precise positioning. Following this purpose, significant achievements related to the extension, analysis, and maintenance of this reference frame have been reached during the last years. However, there are still unresolved problems hindering the attainment of the best possible precision. In particular, the assimilation of seismic-related deformations and non-lineal station movements is very difficult and its omission considerably reduces the reliability of SIRGAS as a high precision reference frame. To advance in the solution of these inconveniences, this paper presents the first kinematic model of the SIRGAS reference frame computed after the strong earthquake occurred in the Chilean region of Maule in February 2010. This model is based on the combination of weekly free normal equations covering the time span from April 18, 2010 to June 15, 2013. Computed station positions and velocities refer to the IGb08 reference frame (the IGS realisation of the ITRF2008), epoch 2012.0. The averaged rms precision is ±1,4 mm horizontally and ±2,5 mm vertically for the station positions at the reference epoch, and ±0,8 mm/yr horizontally and ±1,2 mm/yr vertically for the constant velocities. Comparisons with reference frames based on measurements before the earthquake (like ITRF2008 or former SIRGAS solutions) make evident the strong deformation caused by this earthquake and the necessity of updating accordingly the reference frames in the affected region. Enlace al libro: https://link.springer.com/chapter/10.1007/1345_2015_143
format Parte de Libro
author Drewes, Hermann
Sánchez, Laura
Brunini, Claudio Antonio
Mackern, María Virginia
Martinez Diaz, William
author_facet Drewes, Hermann
Sánchez, Laura
Brunini, Claudio Antonio
Mackern, María Virginia
Martinez Diaz, William
author_sort Drewes, Hermann
title SIRGAS core network stability
title_short SIRGAS core network stability
title_full SIRGAS core network stability
title_fullStr SIRGAS core network stability
title_full_unstemmed SIRGAS core network stability
title_sort sirgas core network stability
publisher Editorial externa
publishDate 2020
url http://repositorio.umaza.edu.ar//handle/00261/1649
https://link.springer.com/chapter/10.1007/1345_2015_143
work_keys_str_mv AT dreweshermann sirgascorenetworkstability
AT sanchezlaura sirgascorenetworkstability
AT bruniniclaudioantonio sirgascorenetworkstability
AT mackernmariavirginia sirgascorenetworkstability
AT martinezdiazwilliam sirgascorenetworkstability
bdutipo_str Repositorios
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