Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/4334
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dc.contributor.authorallDel Negro, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italiaen
dc.contributor.authorallGreco, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italiaen
dc.contributor.authorallNapoli, R.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italiaen
dc.contributor.authorallNunnari, G.; DIEES-UNICT Italyen
dc.date.accessioned2008-11-26T13:21:02Zen
dc.date.available2008-11-26T13:21:02Zen
dc.date.issued2008-10-21en
dc.identifier.urihttp://hdl.handle.net/2122/4334en
dc.description.abstractMultivariate methods were applied to denoise the gravity and geomagnetic signals continuously recorded by the permanent monitoring networks on the Etna volcano. Gravity and geomagnetic signals observed in volcanic areas are severely influenced by meteorological variables (i.e. pressure, temperature and humidity), whose disturbances can make the detection of volcanic source effects more difficult. For volcano monitoring it is necessary, therefore, to reduce the effects of these perturbations. To date filtering noise is a very complex problem since the spectrum of each noise component has wide intervals of superposition and, some times, traditional filtering techniques provide unsatisfactory results. We propose the application of two different approaches, the adaptive neuro-fuzzy inference system (ANFIS) and the Independent Component Analysis (ICA) to remove noise effects from gravity and geomagnetic time series. Results suggest a good efficiency of the two proposed approaches since they are capable of finding and effectively representing the underlying factors or sources, and allow local features of the signal to be detected.en
dc.language.isoEnglishen
dc.publisher.nameCopernicus Publicationsen
dc.relation.ispartofNonlinear Processes in Geophysicsen
dc.relation.ispartofseries/15 (2008)en
dc.subjectgravity dataen
dc.subjectgeomagnetic dataen
dc.subjectANFISen
dc.subjectICAen
dc.subjectEtna volcanoen
dc.titleDenoising gravity and geomagnetic signals from Etna volcano (Italy)en
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber735-749en
dc.identifier.URLhttp://www.nonlin-processes-geophys.net/15/735/2008/npg-15-735-2008.htmlen
dc.subject.INGV04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoringen
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dc.description.obiettivoSpecifico2.6. TTC - Laboratorio di gravimetria, magnetismo ed elettromagnetismo in aree attiveen
dc.description.journalTypeJCR Journalen
dc.description.fulltextopenen
dc.contributor.authorDel Negro, C.en
dc.contributor.authorGreco, F.en
dc.contributor.authorNapoli, R.en
dc.contributor.authorNunnari, G.en
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italiaen
dc.contributor.departmentDIEES-UNICT Italyen
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 OE, Catania, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia-
crisitem.author.deptUniversità degli Studi di Catania-
crisitem.author.orcid0000-0001-5734-9025-
crisitem.author.orcid0000-0002-0265-5073-
crisitem.author.orcid0000-0001-8304-3118-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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