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The Chilean GNSS Network: Current Status and Progress toward Early Warning Applications

Báez, J. C. and Leyton, F. and Troncoso, C. and del Campo, F. and Bevis, M. and Vigny, C. and Moreno, M. and Simons, M. and Kendrick, E. and Parra, H. and Blume, F. (2018) The Chilean GNSS Network: Current Status and Progress toward Early Warning Applications. Seismological Research Letters, 89 (4). pp. 1546-1554. ISSN 0895-0695. http://resolver.caltech.edu/CaltechAUTHORS:20180419-112807109

[img] Archive (ZIP) (Figures showing schema of communication from the stations to the servers used at Centro Sismológico Nacional (CSN), comparison between velocities derived from real‐time Global Navigation Satellite Systems (RT‐GNSS) data, kinematic finite‐fault...) - Supplemental Material
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Abstract

Chile is one of the world’s most seismically active regions and is therefore extensively studied by the earthquake sciences. The great length of the country hosts a variety of measurement systems allowing for the characterization of earthquake processes over a wide range of timescales and in different phases of the seismic cycle. Starting in the early 1990s, several research groups began to deploy continuously operating geodetic networks in Chile, forming the core of the modern network of Global Navigation Satellite Systems (GNSS) receivers used to monitor geodynamics from the southern tip of the Americas to the central Andes. Today, the Centro Sismológico Nacional (CSN) of the Universidad de Chile maintains and improves this network, increasing its coverage and spatial density while greatly reducing solution latency. We present the status of the GNSS network, its data streams, and the real‐time analysis system used to support real‐time modeling of earthquakes. The system takes 2 s, on average, to collect raw data, estimate positions, and stream results. Such low latency is essential to enabling early warning of earthquakes and tsunamis in Chile.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1785/0220180011DOIArticle
https://pubs.geoscienceworld.org/ssa/srl/article/530337/The-Chilean-GNSS-Network-Current-Status-andPublisherArticle
ORCID:
AuthorORCID
Simons, M.0000-0003-1412-6395
Additional Information:© 2018 Seismological Society of America. Published Online 18 April 2018. The authors would like to thank the Chilean National Science Foundation Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT) projects Numbers 1151175, 1170430, and 1181479, and the Centro Sismológico Nacional (CSN) of the Universidad de Chile for maintenance, operation, and the open data policy. The authors acknowledge the valuable contribution of LIA ‘Montessus de Ballore’ International Laboratory to the development of Global Navigation Satellite Systems (GNSS) studies in Chile. The authors also thank the U.S. National Science Foundation for funding the central Andes Global Positioning System (GPS) Project. All figures were made using Generic Mapping Tool (GMT) software (Wessel et al., 2013).
Group:Seismological Laboratory
Funders:
Funding AgencyGrant Number
Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT)1151175
Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT)1170430
Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT)1181479
NSFUNSPECIFIED
Record Number:CaltechAUTHORS:20180419-112807109
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20180419-112807109
Official Citation:J. C. Báez, F. Leyton, C. Troncoso, F. del Campo, M. Bevis, C. Vigny, M. Moreno, M. Simons, E. Kendrick, H. Parra, F. Blume; The Chilean GNSS Network: Current Status and Progress toward Early Warning Applications. Seismological Research Letters ; 89 (4): 1546–1554. doi: https://doi.org/10.1785/0220180011
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:85978
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:19 Apr 2018 20:48
Last Modified:05 Jul 2018 18:16

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