Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/4599
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dc.contributor.authorallToyos, G.; Department of Geography, University of Cambridge, Cambridge, UKen
dc.contributor.authorallGunasekera, R.; Willis Research Network (WRN), Willis Ltd, London, UKen
dc.contributor.authorallZanchetta, G.; Dipartimento di Scienze della Terra, Università di Pisa, Pisa, Italyen
dc.contributor.authorallOppenheimer, C.; Department of Geography, University of Cambridge, Cambridge, UKen
dc.contributor.authorallSulpizio, R.; CIRISIVU, c/o Dipartimento Geomineralogico, Bari, Italyen
dc.contributor.authorallFavalli, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italiaen
dc.contributor.authorallPareschi, M. T.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italiaen
dc.date.accessioned2008-12-11T10:53:48Zen
dc.date.available2008-12-11T10:53:48Zen
dc.date.issued2008-10-15en
dc.identifier.urihttp://hdl.handle.net/2122/4599en
dc.description.abstractThe velocity and dynamic pressure of debris flows are critical determinants of the impact of these natural phenomena on infrastructure. Therefore, the prediction of these parameters is critical for hazard assessment and vulnerability analysis. We present here an approach to predict the velocity of debris flows on the basis of the energy line concept. First, we obtained empirically and field-based estimates of debris flow peak discharge, mean velocity at peak discharge and velocity, at channel bends and within the fans of ten of the debris flow events that occurred in May 1998 in the area of Sarno, Southern Italy. We used this data to calibrate regression models that enable the prediction of velocity as a function of the vertical distance between the energy line and the surface. Despite the complexity in morphology and behaviour of these flows, the statistical fits were good and the debris flow velocities can be predicted with an associated uncertainty of less than 30% and less than 3 m s-1. We wrote code in Visual Basic for Applications (VBA) that runs within ArcGIS® to implement the results of these calibrations and enable the automatic production of velocity and dynamic pressure maps. The collected data and resulting empirical models constitute a realistic basis for more complex numerical modelling. In addition, the GIS implementation constitutes a useful decision-support tool for real-time hazard mitigation. Copyright © 2008 John Wiley & Sons, Ltd.en
dc.language.isoEnglishen
dc.publisher.nameWiley Inter Scienceen
dc.relation.ispartofEarth Surface Processes and Landformsen
dc.relation.ispartofseries11/33(2008)en
dc.relation.isversionofhttp://hdl.handle.net/2122/3180en
dc.subjectdebris flowsen
dc.subjectmobilityen
dc.subjectvelocityen
dc.subjectGISen
dc.subjecthazard assessmenten
dc.titleGIS-assisted modelling for debris flow hazard assessment based on the events of May 1998 in the area of Sarno, Southern Italy. II: Velocity and Dynamic Pressureen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber1693-1708en
dc.subject.INGV04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risken
dc.identifier.doi10.1002/esp.1640en
dc.description.obiettivoSpecifico4.3. TTC - Scenari di pericolosità vulcanicaen
dc.description.obiettivoSpecifico4.4. Scenari e mitigazione del rischio ambientaleen
dc.description.journalTypeJCR Journalen
dc.description.fulltextreserveden
dc.contributor.authorToyos, G.en
dc.contributor.authorGunasekera, R.en
dc.contributor.authorZanchetta, G.en
dc.contributor.authorOppenheimer, C.en
dc.contributor.authorSulpizio, R.en
dc.contributor.authorFavalli, M.en
dc.contributor.authorPareschi, M. T.en
dc.contributor.departmentDepartment of Geography, University of Cambridge, Cambridge, UKen
dc.contributor.departmentWillis Research Network (WRN), Willis Ltd, London, UKen
dc.contributor.departmentDipartimento di Scienze della Terra, Università di Pisa, Pisa, Italyen
dc.contributor.departmentCIRISIVU, c/o Dipartimento Geomineralogico, Bari, Italyen
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.grantfulltextrestricted-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptDepartment of Geography, University of Cambridge, Cambridge, England-
crisitem.author.deptWillis Research Network (WRN), Willis Ltd, London, England-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia-
crisitem.author.deptCIRISIVU, c/o Dipartimento Geomineralogico, Universita' di Bari-
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.orcid0000-0002-7080-9599-
crisitem.author.orcid0000-0003-4506-7260-
crisitem.author.orcid0000-0002-3930-5421-
crisitem.author.orcid0000-0002-7338-6069-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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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