Integrated velocity field from ground and satellite geodetic techniques: application to Arenal volcano
Measurements of ground deformation can be used to identify and interpret geophysical processes occurring at volcanoes. Most studies rely on a single geodetic technique, or fit a geophysical model to the results of multiple geodetic techniques. Here we present a methodology that combines GPS, Total Station measurements and InSAR into a single reference frame to produce an integrated 3-D geodetic velocity surface without any prior geophysical assumptions. The methodology consists of five steps: design of the network, acquisition and processing of the data, spatial integration of the measurements, time series computation and finally the integration of spatial and temporal measurements. The most significant improvements of this method are (1) the reduction of the required field time, (2) the unambiguous detection of outliers, (3) an increased measurement accuracy and (4) the construction of a 3-D geodetic velocity field. We apply this methodology to ongoing motion on Arenal’s western flank. Integration of multiple measurement techniques at Arenal volcano revealed a deformation field that is more complex than that described by individual geodetic techniques, yet remains consistent with previous studies. This approach can be applied to volcano monitoring worldwide and has the potential to be extended to incorporate other geodetic techniques and to study transient deformation.
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Universidad de Oxford, Reino Unido
2015
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Subjects: | GEOFÍSICA, PROCESAMIENTO DE INFORMACIÓN, VOLCÁN ARENAL (COSTA RICA), VULCANOLOGÍA, GEOPHYSICS, INFORMATION PROCESSING, ARENAL VOLCANO (COSTA RICA), VULCANOLOGY, |
Online Access: | http://hdl.handle.net/11056/23616 https://doi.org/10.1093/gji/ggu444 |
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oai:https:--repositorio.una.ac.cr:11056-236162022-07-21T01:18:27Z Integrated velocity field from ground and satellite geodetic techniques: application to Arenal volcano Muller, Cyril Del Potro, Rodrigo Biggs, Juliet Gottsmann, Joachim Ebmeier, Susanna Guillaume, Sébastien Cattin, Paul Henri Van der Laat, Rodolfo GEOFÍSICA PROCESAMIENTO DE INFORMACIÓN VOLCÁN ARENAL (COSTA RICA) VULCANOLOGÍA GEOPHYSICS INFORMATION PROCESSING ARENAL VOLCANO (COSTA RICA) VULCANOLOGY Measurements of ground deformation can be used to identify and interpret geophysical processes occurring at volcanoes. Most studies rely on a single geodetic technique, or fit a geophysical model to the results of multiple geodetic techniques. Here we present a methodology that combines GPS, Total Station measurements and InSAR into a single reference frame to produce an integrated 3-D geodetic velocity surface without any prior geophysical assumptions. The methodology consists of five steps: design of the network, acquisition and processing of the data, spatial integration of the measurements, time series computation and finally the integration of spatial and temporal measurements. The most significant improvements of this method are (1) the reduction of the required field time, (2) the unambiguous detection of outliers, (3) an increased measurement accuracy and (4) the construction of a 3-D geodetic velocity field. We apply this methodology to ongoing motion on Arenal’s western flank. Integration of multiple measurement techniques at Arenal volcano revealed a deformation field that is more complex than that described by individual geodetic techniques, yet remains consistent with previous studies. This approach can be applied to volcano monitoring worldwide and has the potential to be extended to incorporate other geodetic techniques and to study transient deformation. Las mediciones de la deformación del suelo pueden utilizarse para identificar e interpretar los procesos geofísicos que tienen lugar en los volcanes. La mayoría de los estudios se basan en una sola técnica geodésica o ajustan un modelo geofísico a los resultados de múltiples técnicas geodésicas. Aquí presentamos una metodología que combina las mediciones del GPS, la estación total y el InSAR en un único marco de referencia para producir una superficie de velocidad geodésica tridimensional integrada sin ninguna suposición geofísica previa. La metodología consta de cinco pasos: diseño de la red, adquisición y procesamiento de los datos, integración espacial de las mediciones, cálculo de las series temporales y, por último, integración de las mediciones espaciales y temporales. Las mejoras más significativas de este método son (1) la reducción del tiempo de campo necesario, (2) la detección inequívoca de valores atípicos, (3) una mayor precisión de las mediciones y (4) la construcción de un campo de velocidad geodésico en 3D. Aplicamos esta metodología al movimiento en curso en el flanco occidental del Arenal. La integración de múltiples técnicas de medición en el volcán Arenal reveló un campo de deformación que es más complejo que el descrito por las técnicas geodésicas individuales, aunque sigue siendo coherente con los estudios anteriores. Este enfoque puede aplicarse a la vigilancia de volcanes en todo el mundo y tiene el potencial de ser ampliado para incorporar otras técnicas geodésicas y para estudiar la deformación transitoria. Universidad Nacional, Costa Rica. Observatorio Vulcanológico y Sismológico de Costa Rica 2022-07-21T01:15:08Z 2022-07-21T01:15:08Z 2015 http://purl.org/coar/resource_type/c_6501 1365246X http://hdl.handle.net/11056/23616 https://doi.org/10.1093/gji/ggu444 eng Acceso abierto application/pdf Universidad de Oxford, Reino Unido Revista Geophysical Journal International, vol. 200, no. 2, pp. 863–879 (2015) |
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GEOFÍSICA PROCESAMIENTO DE INFORMACIÓN VOLCÁN ARENAL (COSTA RICA) VULCANOLOGÍA GEOPHYSICS INFORMATION PROCESSING ARENAL VOLCANO (COSTA RICA) VULCANOLOGY GEOFÍSICA PROCESAMIENTO DE INFORMACIÓN VOLCÁN ARENAL (COSTA RICA) VULCANOLOGÍA GEOPHYSICS INFORMATION PROCESSING ARENAL VOLCANO (COSTA RICA) VULCANOLOGY |
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GEOFÍSICA PROCESAMIENTO DE INFORMACIÓN VOLCÁN ARENAL (COSTA RICA) VULCANOLOGÍA GEOPHYSICS INFORMATION PROCESSING ARENAL VOLCANO (COSTA RICA) VULCANOLOGY GEOFÍSICA PROCESAMIENTO DE INFORMACIÓN VOLCÁN ARENAL (COSTA RICA) VULCANOLOGÍA GEOPHYSICS INFORMATION PROCESSING ARENAL VOLCANO (COSTA RICA) VULCANOLOGY Muller, Cyril Del Potro, Rodrigo Biggs, Juliet Gottsmann, Joachim Ebmeier, Susanna Guillaume, Sébastien Cattin, Paul Henri Van der Laat, Rodolfo Integrated velocity field from ground and satellite geodetic techniques: application to Arenal volcano |
description |
Measurements of ground deformation can be used to identify and interpret geophysical processes occurring at volcanoes. Most studies rely on a single geodetic technique, or fit a geophysical model to the results of multiple geodetic techniques. Here we present a methodology that combines GPS, Total Station measurements and InSAR into a single reference frame to produce an integrated 3-D geodetic velocity surface without any prior geophysical assumptions. The methodology consists of five steps: design of the network, acquisition and processing of the data, spatial integration of the measurements, time series computation and finally the integration of spatial and temporal measurements. The most significant improvements of this method are (1) the reduction of the required field time, (2) the unambiguous detection of outliers, (3) an increased measurement accuracy and (4) the construction of a 3-D geodetic velocity field. We apply this methodology to ongoing motion on Arenal’s western flank. Integration of multiple measurement techniques at Arenal volcano revealed a deformation field that is more complex than that described by individual geodetic techniques, yet remains consistent with previous studies. This approach can be applied to volcano monitoring worldwide and has the potential to be extended to incorporate other geodetic techniques and to study transient deformation. |
format |
http://purl.org/coar/resource_type/c_6501 |
topic_facet |
GEOFÍSICA PROCESAMIENTO DE INFORMACIÓN VOLCÁN ARENAL (COSTA RICA) VULCANOLOGÍA GEOPHYSICS INFORMATION PROCESSING ARENAL VOLCANO (COSTA RICA) VULCANOLOGY |
author |
Muller, Cyril Del Potro, Rodrigo Biggs, Juliet Gottsmann, Joachim Ebmeier, Susanna Guillaume, Sébastien Cattin, Paul Henri Van der Laat, Rodolfo |
author_facet |
Muller, Cyril Del Potro, Rodrigo Biggs, Juliet Gottsmann, Joachim Ebmeier, Susanna Guillaume, Sébastien Cattin, Paul Henri Van der Laat, Rodolfo |
author_sort |
Muller, Cyril |
title |
Integrated velocity field from ground and satellite geodetic techniques: application to Arenal volcano |
title_short |
Integrated velocity field from ground and satellite geodetic techniques: application to Arenal volcano |
title_full |
Integrated velocity field from ground and satellite geodetic techniques: application to Arenal volcano |
title_fullStr |
Integrated velocity field from ground and satellite geodetic techniques: application to Arenal volcano |
title_full_unstemmed |
Integrated velocity field from ground and satellite geodetic techniques: application to Arenal volcano |
title_sort |
integrated velocity field from ground and satellite geodetic techniques: application to arenal volcano |
publisher |
Universidad de Oxford, Reino Unido |
publishDate |
2015 |
url |
http://hdl.handle.net/11056/23616 https://doi.org/10.1093/gji/ggu444 |
work_keys_str_mv |
AT mullercyril integratedvelocityfieldfromgroundandsatellitegeodetictechniquesapplicationtoarenalvolcano AT delpotrorodrigo integratedvelocityfieldfromgroundandsatellitegeodetictechniquesapplicationtoarenalvolcano AT biggsjuliet integratedvelocityfieldfromgroundandsatellitegeodetictechniquesapplicationtoarenalvolcano AT gottsmannjoachim integratedvelocityfieldfromgroundandsatellitegeodetictechniquesapplicationtoarenalvolcano AT ebmeiersusanna integratedvelocityfieldfromgroundandsatellitegeodetictechniquesapplicationtoarenalvolcano AT guillaumesebastien integratedvelocityfieldfromgroundandsatellitegeodetictechniquesapplicationtoarenalvolcano AT cattinpaulhenri integratedvelocityfieldfromgroundandsatellitegeodetictechniquesapplicationtoarenalvolcano AT vanderlaatrodolfo integratedvelocityfieldfromgroundandsatellitegeodetictechniquesapplicationtoarenalvolcano |
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