Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/11839
DC Field | Value | Language |
---|---|---|
dc.date.accessioned | 2018-05-02T09:41:39Z | en |
dc.date.available | 2018-05-02T09:41:39Z | en |
dc.date.issued | 2017-08-07 | en |
dc.identifier.uri | http://hdl.handle.net/2122/11839 | en |
dc.description.abstract | Numerical modeling of ash plume dispersal is an important tool for forecasting and mitigating potential hazards from volcanic ash erupted during explosive volcanism. Recent tephra dispersal models have been expanded to account for dynamic ash aggregation processes. However, there are very few studies on rates of disaggregation during transport. It follows that current models regard ash aggregation as irrevocable and may therefore overestimate aggregation-enhanced sedimentation. In this experimental study, we use industrial granulation techniques to artificially produce aggregates. We subject these to impact tests and evaluate their resistance to break-up processes. We find a dependence of aggregate stability on primary particle size distribution and solid particle binder concentration. We posit that our findings could be combined with eruption source parameters and implemented in future tephra dispersal models. | en |
dc.language.iso | English | en |
dc.relation.ispartof | Scientific reports | en |
dc.relation.ispartofseries | /7 (2017) | en |
dc.title | Stability of volcanic ash aggregates and break-up processes | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 7440 | en |
dc.identifier.doi | 10.1038/s41598-017-07927-w | en |
dc.description.obiettivoSpecifico | 5V. Dinamica dei processi eruttivi e post-eruttivi | en |
dc.description.journalType | JCR Journal | en |
dc.relation.eissn | 2045-2322 | en |
dc.contributor.author | Mueller, Sebastian B. | en |
dc.contributor.author | Kueppers, Ulrich | en |
dc.contributor.author | Ametsbichler, Jonathan | en |
dc.contributor.author | Cimarelli, Corrado | en |
dc.contributor.author | Merrison, Jonathan P | en |
dc.contributor.author | Poret, Matthieu | en |
dc.contributor.author | Wadsworth, Fabian B. | en |
dc.contributor.author | Dingwell, Donald B. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Bologna, Bologna, 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 | Ludwig-Maximilians-Universität (LMU) München, Earth and Environmental Sciences, Munich, Germany. | - |
crisitem.author.dept | Dept. of Earth and Environmental Sciences, Ludwig-Maximilians Universit¨at, Munich, Germany | - |
crisitem.author.dept | Ludwig-Maximilians-Universität (LMU) München, Earth and Environmental Sciences, Munich, Germany. | - |
crisitem.author.dept | Ludwig Maximilians University, Department of Earth and Environmental Sc., Theresienstr. 41/III,D-80333, Munich, Germany | - |
crisitem.author.orcid | 0000-0003-2815-1444 | - |
crisitem.author.orcid | 0000-0002-5707-5930 | - |
crisitem.author.orcid | 0000-0003-0392-6477 | - |
crisitem.author.orcid | 0000-0002-3332-789X | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
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File | Description | Size | Format | Existing users please Login |
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s41598-017-07927-w.pdf | 3.06 MB | Adobe PDF |
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