Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/3092| DC Field | Value | Language |
|---|---|---|
| dc.contributor.authorall | Patrick, M. R.; Hawaii Institute of Geophysics and Planetology | en |
| dc.contributor.authorall | Harris, A. J. L.; Hawaii Institute of Geophysics and Planetology | en |
| dc.contributor.authorall | Ripepe, M.; Dipartimento di Scienze della Terra, Universita di Firenze | en |
| dc.contributor.authorall | Dehn, J.; Alaska Volcano Observatory, Geophysical Institute | en |
| dc.contributor.authorall | Rothery, D. A.; Department of Earth Sciences, The Open University | en |
| dc.contributor.authorall | Calvari, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia | en |
| dc.date.accessioned | 2007-12-12T11:58:15Z | en |
| dc.date.available | 2007-12-12T11:58:15Z | en |
| dc.date.issued | 2007-06 | en |
| dc.identifier.uri | http://hdl.handle.net/2122/3092 | en |
| dc.description.abstract | Forward Looking Infrared Radiometer (FLIR) cameras offer a unique view of explosive volcanism by providing an image of calibrated temperatures. In this study, 344 eruptive events at Stromboli volcano, Italy, were imaged in 2001–2004 with a FLIR camera operating at up to 30 Hz. The FLIR was effective at revealing both ash plumes and coarse ballistic scoria, and a wide range of eruption styles was recorded. Eruptions at Stromboli can generally be classified into two groups: Type 1 eruptions, which are dominated by coarse ballistic particles, and Type 2 eruptions, which consist of an optically-thick, ash-rich plume, with (Type 2a) or without (Type 2b) large numbers of ballistic particles. Furthermore, Type 2a plumes exhibited gas thrust velocities (>15 m s−1) while Type 2b plumes were limited to buoyant velocities (<15 m s−1) above the crater rim. A given vent would normally maintain a particular gross eruption style (Type 1 vs. 2) for days to weeks, indicating stability of the uppermost conduit on these timescales. Velocities at the crater rim had a range of 3–101 m s−1, with an overall mean value of 24 m s−1. Mean crater rim velocities by eruption style were: Type 1= 34 m s−1, Type 2a=31 m s−1, Type 2b=7 m s−1. Eruption durations had a range of 6–41 s, with a mean of 15 s, similar among eruption styles. The ash in Type 2 eruptions originates from either backfilled material (crater wall slumping or ejecta rollback) or rheological changes in the uppermost magma column. Type 2a and 2b behaviors are shown to be a function of the overpressure of the bursting slug. In general, our imaging data support a broadening of the current paradigm for strombolian behavior, incorporating an uppermost conduit that can be more variable than is commonly considered. | en |
| dc.description.sponsorship | NSF grant no. EAR-0207734, NERC grant no. NER/B/S/2001/00707, the USGS Volcano Hazards Program and the Geophysical Institute at the University of Alaska Fairbanks | en |
| dc.language.iso | English | en |
| dc.publisher.name | Springer | en |
| dc.relation.ispartof | Bulletin of Volcanology | en |
| dc.relation.ispartofseries | 7/69(2007) | en |
| dc.subject | Stromboli volcano | en |
| dc.subject | volcano monitoring | en |
| dc.subject | thermal imaging | en |
| dc.subject | eruption dynamics | en |
| dc.title | Strombolian explosive styles and source conditions: insights from thermal (FLIR) video | en |
| dc.type | article | en |
| dc.description.status | Published | en |
| dc.type.QualityControl | Peer-reviewed | en |
| dc.description.pagenumber | 769-784 | en |
| dc.subject.INGV | 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring | en |
| dc.identifier.doi | 10.1007/s00445-006-0107-0 | en |
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| 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 | Patrick, M. R. | en |
| dc.contributor.author | Harris, A. J. L. | en |
| dc.contributor.author | Ripepe, M. | en |
| dc.contributor.author | Dehn, J. | en |
| dc.contributor.author | Rothery, D. A. | en |
| dc.contributor.author | Calvari, S. | en |
| dc.contributor.department | Hawaii Institute of Geophysics and Planetology | en |
| dc.contributor.department | Hawaii Institute of Geophysics and Planetology | en |
| dc.contributor.department | Dipartimento di Scienze della Terra, Universita di Firenze | en |
| dc.contributor.department | Department of Earth Sciences, The Open University | en |
| dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | 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 | Hawaii Institute of Geophysics and Planetology and School of Ocean and Earth Science and Technology, University of Hawai'i at Manoa, | - |
| crisitem.author.dept | Department of Earth Sciences, The Open University | - |
| crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | - |
| crisitem.author.orcid | 0000-0001-8189-5499 | - |
| 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 | |
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