Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/15378
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dc.date.accessioned2022-02-15T07:16:29Z-
dc.date.available2022-02-15T07:16:29Z-
dc.date.issued2022-02-10-
dc.identifier.urihttp://hdl.handle.net/2122/15378-
dc.description.abstractVolcano seismology, while its value for surveillance of an active volcano is undebatable, is a very demanding field when it comes to station deployment, maintenance, and finally interpreting the measurements. Most valuable in the past was the deployment of arrays of sensors to evaluate the properties of the entire wavefield in order to classify, locate, and estimate the dominant mechanism of the corresponding sources. While very beneficial, an array of seismographs is very hard to maintain in a permanent installation at an active volcano. With the advent of new instrumentation based on fiber optic technology such as Distributed Acoustic Sensing (DAS) with fiber optic cables as well as Fiber-Optic Gyroscopes (FOG) the measurement of deformation and rotation, i.e., the gradient of the wavefield is feasible. The advantage of the FOG instrumentation with respect to DAS lies in the portability and ease of deployment, which is very similar to standard deployments of traditional seismometers. During a field campaign in summer 2018 we were able to install three FOGs together with classical broadband seismometers in close proximity to the active vents of Stromboli volcano (Italy). We show that with this new six-degrees-of-freedom (6DOF) measurement we are able to analyze the wavefield composition, a property normally reserved for array(s) of seismic sensors. As a first result, we can support earlier array-derived findings that a large portion of the wavefield at Stromboli volcano is formed by SV- and SH- type waves. We also present first locations of these signals facilitating the polarization properties of the combined measurement of gyroscopes and seismometers. They emphasize the benefit of recording wavefield gradients. In addition to these array-like results, the 6DOF recordings show a clear separation of at least three distinct groups of volcanic events of which two are already known and one represents a jetting event that appears nearly invisible for classical seismometers. However, rotational motions - or more general - gradients of the wavefield experience severe distortions by local velocity fluctuations and topography significantly complicating the application of 6DOF techniques at activate volcanoes.en_US
dc.language.isoEnglishen_US
dc.publisher.nameElsevieren_US
dc.relation.ispartofJournal of Volcanology and Geothermal Researchen_US
dc.relation.ispartofseries/424 (2022)en_US
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/us/*
dc.subject6 DOFen_US
dc.subjectrotational seismologyen_US
dc.subjectvolcanoseismologyen_US
dc.subjectStrombolien_US
dc.titleThe use of 6DOF measurement in volcano seismology – A first application to Stromboli volcanoen_US
dc.typearticleen
dc.description.statusPublisheden_US
dc.type.QualityControlPeer-revieweden_US
dc.description.pagenumber107499en_US
dc.identifier.URLhttps://www.sciencedirect.com/science/article/pii/S0377027322000300?via%3Dihuben_US
dc.subject.INGV04.06. Seismologyen_US
dc.identifier.doi10.1016/j.jvolgeores.2022.107499en_US
dc.description.obiettivoSpecifico3T. Fisica dei terremoti e Sorgente Sismicaen_US
dc.description.journalTypeJCR Journalen_US
dc.relation.issn0377-0273en_US
dc.contributor.authorWassermann, Joachim-
dc.contributor.authorBraun, Thomas-
dc.contributor.authorRipepe, Maurizio-
dc.contributor.authorBernauer, Felix-
dc.contributor.authorGuattari, Frederic-
dc.contributor.authorIgel, Heiner-
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italiaen_US
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia-
crisitem.author.deptLMU Munich-
crisitem.author.deptiXBlue-
crisitem.author.orcid0000-0002-4088-1792-
crisitem.author.orcid0000-0003-1778-1328-
crisitem.author.orcid0000-0002-9509-4905-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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