Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/10029
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dc.contributor.authorallTarquini, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italiaen
dc.contributor.authorallde' Michieli Vitturi, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italiaen
dc.date.accessioned2015-06-22T06:54:15Zen
dc.date.available2015-06-22T06:54:15Zen
dc.date.issued2014en
dc.identifier.urihttp://hdl.handle.net/2122/10029en
dc.description.abstractThe evolution of lava flows emplaced on Mount Etna (Italy) in September 2004 is examined in detail through the analysis ofmorphometricmeasurements of flow units. The growth of the main channelized flow is consistent with a layering of lava blankets, which maintains the initial geometry of the channel (although levees are widened and raised), and is here explicitly related to the repeated overflow of lava pulses. A simple analytical model is introduced describing the evolution of the flow level in a channelized flow unit fed by a fluctuating supply. The model, named FLOWPULSE, shows that a fluctuation in the velocity of lava extrusion at the vent triggers the formation of pulses, which become increasingly high the farther they are from the vent, and are invariably destined to overflow within a given distance. The FLOWPULSE simulations are in accordance with the observed morphology, characterized by a very flat initial profile followed by a massive increase in flow unit cross-section area between 600 and 700 m downflow. The modeled emplacement dynamics provides also an explanation for the observed substantial “loss” of the original flowing mass with increasing distance from the vent.en
dc.language.isoEnglishen
dc.publisher.nameSpringer Berlin Heidelbergen
dc.relation.ispartofBulletin of volcanologyen
dc.relation.ispartofseries/76 (2014)en
dc.subjectLava flows . Emplacement dynamics . Lava flow modeling . Mount Etnaen
dc.titleInfluence of fluctuating supply on the emplacement dynamics of channelized lava flowsen
dc.typearticleen
dc.description.statusPublisheden
dc.description.pagenumber801en
dc.subject.INGV04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoringen
dc.identifier.doi10.1007/s00445-014-0801-2en
dc.description.obiettivoSpecifico3V. Dinamiche e scenari eruttivien
dc.description.journalTypeJCR Journalen
dc.description.fulltextopenen
dc.relation.issn0258-8900en
dc.relation.eissn1432-0819en
dc.contributor.authorTarquini, S.en
dc.contributor.authorde' Michieli Vitturi, M.en
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italiaen
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 Pisa, Pisa, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia-
crisitem.author.orcid0000-0002-8064-621X-
crisitem.author.orcid0000-0002-6750-9245-
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-
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