Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/4531
DC Field | Value | Language |
---|---|---|
dc.contributor.authorall | Fedi, M.; Dipartimento di Scienze Della Terra, Universit degli Studi di Napoli Federico II, Largo San Marcellino 10, 80138 Napoli, Italy | en |
dc.contributor.authorall | Cascone, L.; Dipartimento di Scienze Della Terra, Università degli Studi di Napoli “Federico II”, Largo San Marcellino 10, 80138 Napoli, Italy | en |
dc.contributor.authorall | Del Negro, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia | en |
dc.contributor.authorall | La Manna, M.; Dipartimento di Scienze Della Terra, Università degli Studi di Napoli “Federico II”, Largo San Marcellino 10, 80138 Napoli, Italy | en |
dc.date.accessioned | 2008-12-09T10:36:14Z | en |
dc.date.available | 2008-12-09T10:36:14Z | en |
dc.date.issued | 2008 | en |
dc.identifier.uri | http://hdl.handle.net/2122/4531 | en |
dc.description.abstract | Volcanomagnetic anomalies have been mostly observed during strong eruptions. Our aim is to improve the geomagnetic data analysis to evidence the anomalies occurring in a larger time span, especially in the phases preceding the eruptive events. We developed a time variant statistical approach and applied it to the 20002002 Etna geomagnetic temporal series. It is based on an algorithm that statistically predicts the geomagnetic field at the station on the volcanic edifice by that recorded at the remote one. In such a way a number of significant changes in the time series (called statistical innovations), marking the local magnetic field change, were detected. The distribution of such statistical innovations accurately describes the Etna volcanic evolution: we note a progressive increase of the innovation occurrence as the eruptive cycles were approaching and only few and weak innovations at times between the various eruptive cycles. The significance of this analysis is further confirmed by the close agreement among the mean square prediction error, strain release and the volcanic activity behavior. On the contrary, the geomagnetic field at a single station or its difference at two stations do not have any clear correlation with other measured physical quantities. The complex pattern of the prediction error was also investigated by a multifractal analysis. We found that the Holder regularity increases with the intensification of the volcanic activity, implying that innovations tend to be less sporadic and correlated during the major volcanic phases. | en |
dc.language.iso | English | en |
dc.publisher.name | elsevier | en |
dc.relation.ispartof | Earth and Planetary Science Letters | en |
dc.relation.ispartofseries | /269 (2008) | en |
dc.subject | Etna volcano | en |
dc.subject | geomagnetic method | en |
dc.subject | volcanic monitoring | en |
dc.subject | predictive analysis | en |
dc.title | Time variant analysis of geomagnetic signals describes the volcanic activity | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 155-163 | en |
dc.subject.INGV | 04. Solid Earth::04.02. Exploration geophysics::04.02.04. Magnetic and electrical methods | en |
dc.identifier.doi | 10.1016/j.epsl.2008.02.016 | en |
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 | reserved | en |
dc.contributor.author | Fedi, M. | en |
dc.contributor.author | Cascone, L. | en |
dc.contributor.author | Del Negro, C. | en |
dc.contributor.author | La Manna, M. | en |
dc.contributor.department | Dipartimento di Scienze Della Terra, Universit degli Studi di Napoli Federico II, Largo San Marcellino 10, 80138 Napoli, Italy | en |
dc.contributor.department | Dipartimento di Scienze Della Terra, Università degli Studi di Napoli “Federico II”, Largo San Marcellino 10, 80138 Napoli, Italy | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | en |
dc.contributor.department | Dipartimento di Scienze Della Terra, Università degli Studi di Napoli “Federico II”, Largo San Marcellino 10, 80138 Napoli, Italy | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | restricted | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Dipartimento di Geofisica e Vulcanologia, L.go S. Marcellino 10, 80138 Napoli, Italy | - |
crisitem.author.dept | Dipartimento di Scienze Della Terra, Università degli Studi di Napoli “Federico II”, Largo San Marcellino 10, 80138 Napoli, Italy | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | - |
crisitem.author.dept | Department of Earth, Environment and Resources Science, University Federico II, Complesso di Monte S. Angelo, Via Cintia, Edifice L, I-80126 Naples, Italy | - |
crisitem.author.orcid | 0000-0002-2145-2271 | - |
crisitem.author.orcid | 0000-0001-5734-9025 | - |
crisitem.author.orcid | 0000-0003-1260-4277 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | Existing users please Login |
---|---|---|---|---|
Fedi Cascone DelNegro LaManna 2008 EPSL1.pdf | Main article | 2.6 MB | Adobe PDF |
Page view(s)
144
checked on Apr 20, 2024
Download(s)
23
checked on Apr 20, 2024