dc.contributor
Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica
dc.contributor
Universitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques
dc.contributor.author
Hurlimann Ziegler, Marcel
dc.contributor.author
Chevalier, Guillaume Gerard
dc.contributor.author
Moya Sánchez, José
dc.contributor.author
Abanco Martínez de Arenzana, Claudia
dc.contributor.author
Llorens, Marc
dc.identifier
Hurlimann, M. [et al.]. Elaboration of a magnitude-frequency relationship for debris flows by aerial photographs: case study from a national park in the Spanish Pyrenees. A: International Symposium on Landslides and North American Symposium on Landslides. "Landslides and engineered slopes: protecting society through improved understanding". Banff, Alberta: CRC Press, 2012, p. 717-722.
dc.identifier
978-0-415-62123-6
dc.identifier
https://hdl.handle.net/2117/17179
dc.description.abstract
Magnitude—frequency relationships provide essential information for landslide hazard
and risk analysis. A debris-flow inventory was created in the “Aigüestortes i Estany de Sant Maurici” National Park in the Central Pyrenees, Spain, by the interpretation of several sets of aerial photographs covering a time span of 53 years. 194 debris flows were detected, which provide a spatial density of 0.5 events per square kilometre. The areas affected by the debris flows range from ∼200 m2 up to 35000 m2. The magnitude—cumulative frequency curves include a strong rollover effect at about 2000 m2 and events larger than this magnitude can be represented by a power law with an exponent between −1.5 and −1.9.
dc.description.abstract
Postprint (published version)
dc.format
application/pdf
dc.rights
Restricted access - publisher's policy
dc.subject
Àrees temàtiques de la UPC::Enginyeria civil::Geologia::Riscos geològics
dc.subject
Debris avalanches
dc.subject
Esllavissades -- Pirineus
dc.title
Elaboration of a magnitude-frequency relationship for debris flows by aerial photographs: case study from a national park in the Spanish Pyrenees
dc.type
Conference report
