Improved analysis strategy and accessibility of the SIRGAS reference frame

The SIRGAS reference system is at present realized by the SIRGAS Continuously Operating Network (SIRGAS-CON) composed by about 200 stations distributed over Latin America and the Caribbean. SIRGAS member countries are improving their national reference frames by installing continuously operating GPS...

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Detalles Bibliográficos
Publicado: 2012
Materias:
Analysis strategies
Continental network
Latin America and the Caribbean
Long term stability
Reference network
Reference systems
Scientific applications
Unified solutions
Earth (planet)
Geodesy
Geodetic satellites
Global positioning system
Quality control
conference proceeding
GPS
network analysis
positioning
Argentina
Atlantic Ocean
Brazil
Caribbean Sea
Colombia
Germany
Latin America
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09399585_v136_n_p3_Brunini
http://hdl.handle.net/20.500.12110/paper_09399585_v136_n_p3_Brunini
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_09399585_v136_n_p3_Brunini
record_format dspace
spelling paper:paper_09399585_v136_n_p3_Brunini2023-06-08T15:53:30Z Improved analysis strategy and accessibility of the SIRGAS reference frame Analysis strategies Continental network Latin America and the Caribbean Long term stability Reference network Reference systems Scientific applications Unified solutions Earth (planet) Geodesy Geodetic satellites Global positioning system Quality control conference proceeding GPS network analysis positioning Argentina Atlantic Ocean Brazil Caribbean Sea Colombia Germany Latin America The SIRGAS reference system is at present realized by the SIRGAS Continuously Operating Network (SIRGAS-CON) composed by about 200 stations distributed over Latin America and the Caribbean. SIRGAS member countries are improving their national reference frames by installing continuously operating GPS stations, which have to be consistently integrated into the continental network. As the number of these stations is rapidly increasing, the analysis strategy of the SIRGAS-CON network is based on two hierarchy levels: a) A core network with homogeneous continental coverage and stable site locations ensures the long-term stability of the reference frame. This network is processed by DGFI (Germany) as the IGS RNAAC SIR. b) Several densification sub-networks (corresponding to the national reference networks) improve the accessibility to the reference frame in the individual countries. Currently, the SIRGAS-CON stations are classified in three densification sub-networks (a southern, a middle, and a northern one), which are processed by the SIRGAS Local Processing Centres CIMA (Argentina), IBGE (Brazil), and IGAC (Colombia). These four Processing Centres deliver loosely constrained weekly solutions for the assigned sub-networks, which are integrated in a unified solution by the SIRGAS Combination Centres (DGFI and IBGE). The main SIRGAS products are: loosely constrained weekly solutions in SINEX format for further combinations of the network, weekly positions aligned to the ITRF as reference for GPS positioning in Latin America; and multi-year solutions (positions + velocities) for practical and scientific applications requiring time-dependent coordinates. This paper describes the analysis of the SIRGAS-CON network as the current realization of the SIRGAS reference system, its quality and consistency, as well as the planned activities to continue improving this reference frame. © Springer-Verlag Berlin Heidelberg 2012. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09399585_v136_n_p3_Brunini http://hdl.handle.net/20.500.12110/paper_09399585_v136_n_p3_Brunini
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Analysis strategies
Continental network
Latin America and the Caribbean
Long term stability
Reference network
Reference systems
Scientific applications
Unified solutions
Earth (planet)
Geodesy
Geodetic satellites
Global positioning system
Quality control
conference proceeding
GPS
network analysis
positioning
Argentina
Atlantic Ocean
Brazil
Caribbean Sea
Colombia
Germany
Latin America
spellingShingle Analysis strategies
Continental network
Latin America and the Caribbean
Long term stability
Reference network
Reference systems
Scientific applications
Unified solutions
Earth (planet)
Geodesy
Geodetic satellites
Global positioning system
Quality control
conference proceeding
GPS
network analysis
positioning
Argentina
Atlantic Ocean
Brazil
Caribbean Sea
Colombia
Germany
Latin America
Improved analysis strategy and accessibility of the SIRGAS reference frame
topic_facet Analysis strategies
Continental network
Latin America and the Caribbean
Long term stability
Reference network
Reference systems
Scientific applications
Unified solutions
Earth (planet)
Geodesy
Geodetic satellites
Global positioning system
Quality control
conference proceeding
GPS
network analysis
positioning
Argentina
Atlantic Ocean
Brazil
Caribbean Sea
Colombia
Germany
Latin America
description The SIRGAS reference system is at present realized by the SIRGAS Continuously Operating Network (SIRGAS-CON) composed by about 200 stations distributed over Latin America and the Caribbean. SIRGAS member countries are improving their national reference frames by installing continuously operating GPS stations, which have to be consistently integrated into the continental network. As the number of these stations is rapidly increasing, the analysis strategy of the SIRGAS-CON network is based on two hierarchy levels: a) A core network with homogeneous continental coverage and stable site locations ensures the long-term stability of the reference frame. This network is processed by DGFI (Germany) as the IGS RNAAC SIR. b) Several densification sub-networks (corresponding to the national reference networks) improve the accessibility to the reference frame in the individual countries. Currently, the SIRGAS-CON stations are classified in three densification sub-networks (a southern, a middle, and a northern one), which are processed by the SIRGAS Local Processing Centres CIMA (Argentina), IBGE (Brazil), and IGAC (Colombia). These four Processing Centres deliver loosely constrained weekly solutions for the assigned sub-networks, which are integrated in a unified solution by the SIRGAS Combination Centres (DGFI and IBGE). The main SIRGAS products are: loosely constrained weekly solutions in SINEX format for further combinations of the network, weekly positions aligned to the ITRF as reference for GPS positioning in Latin America; and multi-year solutions (positions + velocities) for practical and scientific applications requiring time-dependent coordinates. This paper describes the analysis of the SIRGAS-CON network as the current realization of the SIRGAS reference system, its quality and consistency, as well as the planned activities to continue improving this reference frame. © Springer-Verlag Berlin Heidelberg 2012.
title Improved analysis strategy and accessibility of the SIRGAS reference frame
title_short Improved analysis strategy and accessibility of the SIRGAS reference frame
title_full Improved analysis strategy and accessibility of the SIRGAS reference frame
title_fullStr Improved analysis strategy and accessibility of the SIRGAS reference frame
title_full_unstemmed Improved analysis strategy and accessibility of the SIRGAS reference frame
title_sort improved analysis strategy and accessibility of the sirgas reference frame
publishDate 2012
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09399585_v136_n_p3_Brunini
http://hdl.handle.net/20.500.12110/paper_09399585_v136_n_p3_Brunini
_version_ 1768545100682493952

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