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Deception volcano (Antarctica): an example of advances on ground displacement surveillance in extreme and isolated environments using GNSS satellites

2026-02-03Artigo científico Acesso aberto
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datacite.subject.sdg13:Ação Climática
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
datacite.subject.sdg11:Cidades e Comunidades Sustentáveis
dc.contributor.authorPérez-Peña, Alejandro
dc.contributor.authorPrates, Gonçalo
dc.contributor.authorGil, Amós De
dc.contributor.authorRosado, Belén
dc.contributor.authorFernandez-Ros, Alberto
dc.contributor.authorPecci, Luis Miguel
dc.contributor.authorGárate, Jorge
dc.contributor.authorRamirez-Zelaya, Javier
dc.contributor.authorGonzalez-Bielsa, Carlos
dc.contributor.authorJiménez, Vanessa
dc.contributor.authorBerrocoso, Manuel
dc.date.accessioned2026-03-20T10:07:32Z
dc.date.available2026-03-20T10:07:32Z
dc.date.issued2026-02-03
dc.description.abstractDeception Island is an active, caldera-forming volcano whose surveillance is critically constrained by its extreme Antarctic isolation, scarce resources and limited seasonal human access. This study addresses these challenges by presenting an innovative Global Navigation Satellite Systems (GNSS) geodetic surveillance framework specifically adapted for such a remote environment. Our approach establishes a key operational distinction between non-real-time monitoring and near-real-time surveillance via a semi-continuous wireless network. We effectively resolve the inherent trade-off between promptness and precision by applying signal enhancement methods (e.g. Kalman filtering) to maintain millimetric accuracy in deformation detection, even when utilizing the high sampling rates (1 Hz) essential for rapid assessment. The resulting model allows for the rigorous isolation of the local volcanic signal from the complex regional tectonic kinematics. Crucially, data analysis reveals recurrent 3 year cycles of inflation and deflation in the magmatic system, strongly correlated with seismicity, which validates ground deformation as a reliable volcanic precursor. The primary practical advance is the validation of a dual-term hazard forecasting system: 1) mid-term (months) forecasts based on long-term time-series analysis to facilitate safe inter-campaign operations and 2) short-term (days) forecasting during periods of unrest using ground displacement acceleration, complemented by a magma injection model to predict the spatial location of potential vent openings. This validated and technologically adjusted framework provides an optimized and transferable template for continuous geodetic surveillance in other isolated, active polar volcanoes.eng
dc.identifier.doi10.1017/s0954102025100503
dc.identifier.eissn1365-2079
dc.identifier.issn0954-1020
dc.identifier.urihttp://hdl.handle.net/10400.1/28489
dc.language.isoeng
dc.peerreviewedyes
dc.publisherCambridge University Press (CUP)
dc.relation.ispartofAntarctic Science
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectDeception Island
dc.subjectGNSS geodesy
dc.subjectGround displacement
dc.subjectVolcano surveillance
dc.titleDeception volcano (Antarctica): an example of advances on ground displacement surveillance in extreme and isolated environments using GNSS satelliteseng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleAntarctic Science
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNamePrates
person.givenNameGonçalo
person.identifierR-001-Y1J
person.identifier.ciencia-idFC15-AE46-CE93
person.identifier.orcid0000-0001-5797-9158
person.identifier.ridK-4018-2014
person.identifier.scopus-author-id6504498720
relation.isAuthorOfPublication286735d2-0aa5-447a-b90f-e7d2f217d652
relation.isAuthorOfPublication.latestForDiscovery286735d2-0aa5-447a-b90f-e7d2f217d652

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