Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/4334
DC Field | Value | Language |
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dc.contributor.authorall | Del Negro, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia | en |
dc.contributor.authorall | Greco, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia | en |
dc.contributor.authorall | Napoli, R.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia | en |
dc.contributor.authorall | Nunnari, G.; DIEES-UNICT Italy | en |
dc.date.accessioned | 2008-11-26T13:21:02Z | en |
dc.date.available | 2008-11-26T13:21:02Z | en |
dc.date.issued | 2008-10-21 | en |
dc.identifier.uri | http://hdl.handle.net/2122/4334 | en |
dc.description.abstract | Multivariate 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.iso | English | en |
dc.publisher.name | Copernicus Publications | en |
dc.relation.ispartof | Nonlinear Processes in Geophysics | en |
dc.relation.ispartofseries | /15 (2008) | en |
dc.subject | gravity data | en |
dc.subject | geomagnetic data | en |
dc.subject | ANFIS | en |
dc.subject | ICA | en |
dc.subject | Etna volcano | en |
dc.title | Denoising gravity and geomagnetic signals from Etna volcano (Italy) | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 735-749 | en |
dc.identifier.URL | http://www.nonlin-processes-geophys.net/15/735/2008/npg-15-735-2008.html | en |
dc.subject.INGV | 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring | en |
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dc.description.obiettivoSpecifico | 2.6. TTC - Laboratorio di gravimetria, magnetismo ed elettromagnetismo in aree attive | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | open | en |
dc.contributor.author | Del Negro, C. | en |
dc.contributor.author | Greco, F. | en |
dc.contributor.author | Napoli, R. | en |
dc.contributor.author | Nunnari, G. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | en |
dc.contributor.department | DIEES-UNICT Italy | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | - |
crisitem.author.dept | Università degli Studi di Catania | - |
crisitem.author.orcid | 0000-0001-5734-9025 | - |
crisitem.author.orcid | 0000-0002-0265-5073 | - |
crisitem.author.orcid | 0000-0001-8304-3118 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | |
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Del Negro et al.pdf | Main article | 971.47 kB | Adobe PDF | View/Open |
npg-15-735-2008.pdf | 5.09 MB | Adobe PDF | View/Open |
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