Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/7456
DC Field | Value | Language |
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dc.contributor.authorall | Bonadonna, C.; Section of Earth and Environmental Sciences, University of Geneva, Geneva, Switzerland | en |
dc.contributor.authorall | Genco, R.; Dipartimento di Scienze della Terra, Università di Firenze, Firenze, Italy | en |
dc.contributor.authorall | Gouhier, M.; Laboratoire Magmas et Volcans, Université Blaise Pascal, Clermont-Ferrand, France | en |
dc.contributor.authorall | Pistolesi, M.; Dipartimento di Scienze della Terra, Università di Pisa, Pisa, Italy | en |
dc.contributor.authorall | Cioni, R.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
dc.contributor.authorall | Alfano, F.; Section of Earth and Environmental Sciences, University of Geneva, Geneva, Switzerland | en |
dc.contributor.authorall | Hoskuldsson, A.; Institute of Earth Sciences, University of Iceland, Reykjavik, Iceland | en |
dc.contributor.authorall | Ripepe, M.; Dipartimento di Scienze della Terra, Università di Firenze, Firenze, Italy | en |
dc.date.accessioned | 2012-01-23T07:04:45Z | en |
dc.date.available | 2012-01-23T07:04:45Z | en |
dc.date.issued | 2011 | en |
dc.identifier.uri | http://hdl.handle.net/2122/7456 | en |
dc.description.abstract | The April–May 2010 eruption of the Eyjafjallajökull volcano (Iceland) was characterized by a nearly continuous injection of tephra into the atmosphere that affected various economic sectors in Iceland and caused a global interruption of air traffic. Eruptive activity during 4–8 May 2010 was characterized based on short-duration physical parameters in order to capture transient eruptive behavior of a long-lasting eruption (i.e., total grain-size distribution, erupted mass, and mass eruption rate averaged over 30 min activity). The resulting 30 min total grain-size distribution based on both ground and Meteosat Second Generation-Spinning Enhanced Visible and Infrared Imager (MSG-SEVIRI) satellite measurements is characterized by Mdphi of about 2 and a fine-ash content of about 30 wt %. The accumulation rate varied by 2 orders of magnitude with an exponential decay away from the vent, whereas Mdphi shows a linear increase until about 18 km from the vent, reaching a plateau of about 4.5 between 20 and 56 km. The associated mass eruption rate is between 0.6 and 1.2 × 105 kg s−1. In situ sampling showed how fine ash mainly fell as aggregates of various typologies. About 5 to 9 wt % of the erupted mass remained in the cloud up to 1000 km from the vent, suggesting that nearly half of the ash >7 settled as aggregates within the first 60 km. Particle sphericity and shape factor varied between 0.4 and 1 with no clear correlation to the size and distance from vent. Our experiments also demonstrate how satellite retrievals and Doppler radar grain-size detection can provide a real-time description of the source term but for a limited particle-size range. | en |
dc.language.iso | English | en |
dc.publisher.name | American Geophysical Union | en |
dc.relation.ispartof | Journal of Geophysical Research | en |
dc.relation.ispartofseries | /116(2011) | en |
dc.subject | MSG-SEVIRI, PLUDIX | en |
dc.subject | particle aggregation | en |
dc.subject | settling velocity | en |
dc.subject | tephra deposits | en |
dc.subject | weak plumes | en |
dc.title | Tephra sedimentation during the 2010 Eyjafjallajökull eruption (Iceland) from deposit, radar, and satellite observations | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | B12202 | en |
dc.identifier.URL | http://www.agu.org/pubs/crossref/2011/2011JB008462.shtml | en |
dc.subject.INGV | 04. Solid Earth::04.04. Geology::04.04.06. Rheology, friction, and structure of fault zones | en |
dc.subject.INGV | 04. Solid Earth::04.08. Volcanology::04.08.07. Instruments and techniques | en |
dc.identifier.doi | 10.1029/2011JB008462 | en |
dc.description.obiettivoSpecifico | 1.5. TTC - Sorveglianza dell'attività eruttiva dei vulcani | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | reserved | en |
dc.contributor.author | Bonadonna, C. | en |
dc.contributor.author | Genco, R. | en |
dc.contributor.author | Gouhier, M. | en |
dc.contributor.author | Pistolesi, M. | en |
dc.contributor.author | Cioni, R. | en |
dc.contributor.author | Alfano, F. | en |
dc.contributor.author | Hoskuldsson, A. | en |
dc.contributor.author | Ripepe, M. | en |
dc.contributor.department | Section of Earth and Environmental Sciences, University of Geneva, Geneva, Switzerland | en |
dc.contributor.department | Dipartimento di Scienze della Terra, Università di Firenze, Firenze, Italy | en |
dc.contributor.department | Laboratoire Magmas et Volcans, Université Blaise Pascal, Clermont-Ferrand, France | en |
dc.contributor.department | Dipartimento di Scienze della Terra, Università di Pisa, Pisa, Italy | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
dc.contributor.department | Section of Earth and Environmental Sciences, University of Geneva, Geneva, Switzerland | en |
dc.contributor.department | Institute of Earth Sciences, University of Iceland, Reykjavik, Iceland | en |
dc.contributor.department | Dipartimento di Scienze della Terra, Università di Firenze, Firenze, 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 | Section of Earth and Environmental Sciences, University of Geneva, Geneva, Switzerland | - |
crisitem.author.dept | University of Iceland | - |
crisitem.author.orcid | 0000-0002-2368-2193 | - |
crisitem.author.orcid | 0000-0003-2377-065X | - |
crisitem.author.orcid | 0000-0001-8720-7300 | - |
crisitem.author.orcid | 0000-0002-5096-3708 | - |
crisitem.author.orcid | 0000-0002-2526-9095 | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
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JGR_Bonadonna_etal_2011.pdf | 3.89 MB | Adobe PDF |
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