Deformation of Copahue volcano: Inversion of InSAR data using a genetic algorithm

Autores
Velez, Maria Laura; Euillades, Pablo Andrés; Caselli, Alberto Tomás; Blanco, Mauro Hugo; Díaz, Jose Martínez
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Copahue volcano is one of the most active volcanoes in Argentina with eruptions having been reported as recently as 1992, 1995 and 2000. A deformation analysis using the Differential Synthetic Aperture Radar technique (DInSAR) was performed on Copahue-Caviahue Volcanic Complex (CCVC) from Envisat radar images between 2002 and 2007. A deformation rate of approximately 2 cm/yr was calculated, located mostly on the north-eastern flank of Copahue volcano, and assumed to be constant during the period of the interferograms. The geometry of the source responsible for the deformation was evaluated from an inversion of the mean velocity deformation measurements using two different models based on pressure sources embedded in an elastic homogeneous half-space. A genetic algorithm was applied as an optimization tool to find the best fit source. Results from inverse modelling indicate that a source located beneath the volcano edifice at a mean depth of 4 km is producing a volume change of approximately 0.0015 km/yr. This source was analysed considering the available studies of the area, and a conceptual model of the volcanic-hydrothermal system was designed. The source of deformation is related to a depressurisation of the system that results from the release of magmatic fluids across the boundary between the brittle and plastic domains. These leakages are considered to be responsible for the weak phreatic eruptions recently registered at the Copahue volcano. © 2011 Elsevier B.V.
Fil: Velez, Maria Laura. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Euillades, Pablo Andrés. Universidad Nacional de Cuyo. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Caselli, Alberto Tomás. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Blanco, Mauro Hugo. Universidad Nacional de Cuyo. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Díaz, Jose Martínez. Universidad Complutense de Madrid; España
Materia
Copahue Volcano
Deformation Source
Genetic Algorithm
Sbas-Dinsar
Subsidence
Volcanic-Hydrothermal System
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/68449
Acceder
id CONICETDig_11daff6a63ffbd028973c762959d35c5
oai_identifier_str oai:ri.conicet.gov.ar:11336/68449
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Deformation of Copahue volcano: Inversion of InSAR data using a genetic algorithmVelez, Maria LauraEuillades, Pablo AndrésCaselli, Alberto TomásBlanco, Mauro HugoDíaz, Jose MartínezCopahue VolcanoDeformation SourceGenetic AlgorithmSbas-DinsarSubsidenceVolcanic-Hydrothermal Systemhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Copahue volcano is one of the most active volcanoes in Argentina with eruptions having been reported as recently as 1992, 1995 and 2000. A deformation analysis using the Differential Synthetic Aperture Radar technique (DInSAR) was performed on Copahue-Caviahue Volcanic Complex (CCVC) from Envisat radar images between 2002 and 2007. A deformation rate of approximately 2 cm/yr was calculated, located mostly on the north-eastern flank of Copahue volcano, and assumed to be constant during the period of the interferograms. The geometry of the source responsible for the deformation was evaluated from an inversion of the mean velocity deformation measurements using two different models based on pressure sources embedded in an elastic homogeneous half-space. A genetic algorithm was applied as an optimization tool to find the best fit source. Results from inverse modelling indicate that a source located beneath the volcano edifice at a mean depth of 4 km is producing a volume change of approximately 0.0015 km/yr. This source was analysed considering the available studies of the area, and a conceptual model of the volcanic-hydrothermal system was designed. The source of deformation is related to a depressurisation of the system that results from the release of magmatic fluids across the boundary between the brittle and plastic domains. These leakages are considered to be responsible for the weak phreatic eruptions recently registered at the Copahue volcano. © 2011 Elsevier B.V.Fil: Velez, Maria Laura. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Euillades, Pablo Andrés. Universidad Nacional de Cuyo. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Caselli, Alberto Tomás. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Blanco, Mauro Hugo. Universidad Nacional de Cuyo. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Díaz, Jose Martínez. Universidad Complutense de Madrid; EspañaElsevier Science2011-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/68449Velez, Maria Laura; Euillades, Pablo Andrés; Caselli, Alberto Tomás; Blanco, Mauro Hugo; Díaz, Jose Martínez; Deformation of Copahue volcano: Inversion of InSAR data using a genetic algorithm; Elsevier Science; Journal of Volcanology and Geothermal Research; 202; 1-2; 4-2011; 117-1260377-0273CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jvolgeores.2011.01.012info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0377027311000394info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:52:34Zoai:ri.conicet.gov.ar:11336/68449instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:52:34.98CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Deformation of Copahue volcano: Inversion of InSAR data using a genetic algorithm
title Deformation of Copahue volcano: Inversion of InSAR data using a genetic algorithm
spellingShingle Deformation of Copahue volcano: Inversion of InSAR data using a genetic algorithm
Velez, Maria Laura
Copahue Volcano
Deformation Source
Genetic Algorithm
Sbas-Dinsar
Subsidence
Volcanic-Hydrothermal System
title_short Deformation of Copahue volcano: Inversion of InSAR data using a genetic algorithm
title_full Deformation of Copahue volcano: Inversion of InSAR data using a genetic algorithm
title_fullStr Deformation of Copahue volcano: Inversion of InSAR data using a genetic algorithm
title_full_unstemmed Deformation of Copahue volcano: Inversion of InSAR data using a genetic algorithm
title_sort Deformation of Copahue volcano: Inversion of InSAR data using a genetic algorithm
dc.creator.none.fl_str_mv Velez, Maria Laura
Euillades, Pablo Andrés
Caselli, Alberto Tomás
Blanco, Mauro Hugo
Díaz, Jose Martínez
author Velez, Maria Laura
author_facet Velez, Maria Laura
Euillades, Pablo Andrés
Caselli, Alberto Tomás
Blanco, Mauro Hugo
Díaz, Jose Martínez
author_role author
author2 Euillades, Pablo Andrés
Caselli, Alberto Tomás
Blanco, Mauro Hugo
Díaz, Jose Martínez
author2_role author
author
author
author
dc.subject.none.fl_str_mv Copahue Volcano
Deformation Source
Genetic Algorithm
Sbas-Dinsar
Subsidence
Volcanic-Hydrothermal System
topic Copahue Volcano
Deformation Source
Genetic Algorithm
Sbas-Dinsar
Subsidence
Volcanic-Hydrothermal System
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Copahue volcano is one of the most active volcanoes in Argentina with eruptions having been reported as recently as 1992, 1995 and 2000. A deformation analysis using the Differential Synthetic Aperture Radar technique (DInSAR) was performed on Copahue-Caviahue Volcanic Complex (CCVC) from Envisat radar images between 2002 and 2007. A deformation rate of approximately 2 cm/yr was calculated, located mostly on the north-eastern flank of Copahue volcano, and assumed to be constant during the period of the interferograms. The geometry of the source responsible for the deformation was evaluated from an inversion of the mean velocity deformation measurements using two different models based on pressure sources embedded in an elastic homogeneous half-space. A genetic algorithm was applied as an optimization tool to find the best fit source. Results from inverse modelling indicate that a source located beneath the volcano edifice at a mean depth of 4 km is producing a volume change of approximately 0.0015 km/yr. This source was analysed considering the available studies of the area, and a conceptual model of the volcanic-hydrothermal system was designed. The source of deformation is related to a depressurisation of the system that results from the release of magmatic fluids across the boundary between the brittle and plastic domains. These leakages are considered to be responsible for the weak phreatic eruptions recently registered at the Copahue volcano. © 2011 Elsevier B.V.
Fil: Velez, Maria Laura. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Euillades, Pablo Andrés. Universidad Nacional de Cuyo. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Caselli, Alberto Tomás. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Blanco, Mauro Hugo. Universidad Nacional de Cuyo. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Díaz, Jose Martínez. Universidad Complutense de Madrid; España
description The Copahue volcano is one of the most active volcanoes in Argentina with eruptions having been reported as recently as 1992, 1995 and 2000. A deformation analysis using the Differential Synthetic Aperture Radar technique (DInSAR) was performed on Copahue-Caviahue Volcanic Complex (CCVC) from Envisat radar images between 2002 and 2007. A deformation rate of approximately 2 cm/yr was calculated, located mostly on the north-eastern flank of Copahue volcano, and assumed to be constant during the period of the interferograms. The geometry of the source responsible for the deformation was evaluated from an inversion of the mean velocity deformation measurements using two different models based on pressure sources embedded in an elastic homogeneous half-space. A genetic algorithm was applied as an optimization tool to find the best fit source. Results from inverse modelling indicate that a source located beneath the volcano edifice at a mean depth of 4 km is producing a volume change of approximately 0.0015 km/yr. This source was analysed considering the available studies of the area, and a conceptual model of the volcanic-hydrothermal system was designed. The source of deformation is related to a depressurisation of the system that results from the release of magmatic fluids across the boundary between the brittle and plastic domains. These leakages are considered to be responsible for the weak phreatic eruptions recently registered at the Copahue volcano. © 2011 Elsevier B.V.
publishDate 2011
dc.date.none.fl_str_mv 2011-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/68449
Velez, Maria Laura; Euillades, Pablo Andrés; Caselli, Alberto Tomás; Blanco, Mauro Hugo; Díaz, Jose Martínez; Deformation of Copahue volcano: Inversion of InSAR data using a genetic algorithm; Elsevier Science; Journal of Volcanology and Geothermal Research; 202; 1-2; 4-2011; 117-126
0377-0273
CONICET Digital
CONICET
url http://hdl.handle.net/11336/68449
identifier_str_mv Velez, Maria Laura; Euillades, Pablo Andrés; Caselli, Alberto Tomás; Blanco, Mauro Hugo; Díaz, Jose Martínez; Deformation of Copahue volcano: Inversion of InSAR data using a genetic algorithm; Elsevier Science; Journal of Volcanology and Geothermal Research; 202; 1-2; 4-2011; 117-126
0377-0273
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jvolgeores.2011.01.012
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0377027311000394
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844613611918458880
score 13.070432

Publicaciones similares