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dc.contributor.authorPalau Berastegui, Rosa Maria
dc.contributor.authorHurlimann Ziegler, Marcel
dc.contributor.authorBerenguer Ferrer, Marc
dc.contributor.authorSempere Torres, Daniel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.date.accessioned2019-07-16T09:46:08Z
dc.date.available2019-07-16T09:46:08Z
dc.date.issued2019
dc.identifier.citationPalau, RM. [et al.]. Debris-flow early warning system at regional scale using weather radar and susceptibility mapping. A: International Conference on Debris-Flow Hazards Mitigation. "Debris-Flow Hazards Mitigation: Mechanics, Monitoring, Modeling, and Assessment: proceedings of the Seventh International Conference on Debris-Flow Hazards Mitigation, Golden, Colorado, Usa, June 10-13, 2019". Association of Environmental & Engineering Geologists (AEG), 2019, p. 184-191.
dc.identifier.isbn978-0-578-51082-8
dc.identifier.urihttp://hdl.handle.net/2117/166267
dc.description.abstractRisk mitigation for debris flows at regional scale is a challenge. Early warning systems are helpful in depicting the time and the location of future debris flows so that emergency responders can act in advance before the disaster takes place. Herein we present a prototype real-time regional early warning system for rainfall induced shallow landslides and debris flows for the region of Catalonia (northeastern Spain). The model issues a warning level combining susceptibility information and real-time rainfall triggering conditions obtained from weather radar observations and forecasts. Susceptibility maps have been derived using a fuzzy logic approach and two input variables, terrain slope and land cover. These maps have been obtained using (i) grid cells of different resolutions, and (ii) physical catchments (of first order) as terrain units. Although high resolution grid-cell maps show a more accurate representation of susceptibility over the region, maps based on catchments are more intuitive and better characterize the area affected by future debris flows. Rainfall triggering conditions are assessed by means of probabilistic intensity-duration thresholds obtained from literature. Finally, we have validated the early warning system and tested its performance for some important events from the last ten years that were either monitored in specific catchments, or were reported in unmonitored catchments. In general, the system has been able to satisfactorily forecast the time of occurrence of most of the analyzed past debris flow events.
dc.format.extent8 p.
dc.language.isoeng
dc.publisherAssociation of Environmental & Engineering Geologists (AEG)
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Geologia::Riscos geològics
dc.subject.lcshDebris avalanches--Risk assessment
dc.subject.otherDebris flow
dc.subject.otherEarly Warning System
dc.subject.otherSusceptibility map
dc.subject.otherRainfall thresholds
dc.subject.otherWeather radar
dc.subject.otherCatalonia
dc.titleDebris-flow early warning system at regional scale using weather radar and susceptibility mapping
dc.typeConference lecture
dc.subject.lemacEsllavissades -- Prevenció
dc.contributor.groupUniversitat Politècnica de Catalunya. CRAHI - Centre de Recerca Aplicada en Hidrometeorologia
dc.contributor.groupUniversitat Politècnica de Catalunya. EnGeoModels - Monitoring and Modelling in Engineering Geology
dc.relation.publisherversionhttps://hdl.handle.net/11124/173051
dc.rights.accessOpen Access
local.identifier.drac25312124
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/MINECO/1PN/BIA2015-67500-R
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/700099/EU/EnhANcing emergencY management and response to extreme WeatHER and climate Events/ANYWHERE
local.citation.authorPalau, RM.; Hurlimann, M.; Berenguer, M.; Sempere-Torres, D.
local.citation.contributorInternational Conference on Debris-Flow Hazards Mitigation
local.citation.publicationNameDebris-Flow Hazards Mitigation: Mechanics, Monitoring, Modeling, and Assessment: proceedings of the Seventh International Conference on Debris-Flow Hazards Mitigation, Golden, Colorado, Usa, June 10-13, 2019
local.citation.startingPage184
local.citation.endingPage191


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