Presence-only approach to assess landslide triggering-thickness susceptibility: a test for the Mili catchment (north-eastern Sicily, Italy)

Handle URI:
http://hdl.handle.net/10754/621573
Title:
Presence-only approach to assess landslide triggering-thickness susceptibility: a test for the Mili catchment (north-eastern Sicily, Italy)
Authors:
Lombardo, Luigi; Fubelli, G.; Amato, G.; Bonasera, M.
Abstract:
This study evaluates the performances of the presence-only approach, Maximum Entropy, in assessing landslide triggering-thickness susceptibility within the Mili catchment (Sicily, Italy). This catchment underwent several meteorological stresses, resulting in hundreds of shallow rapid mass movements between 2007 and 2011. In particular, the area has become known for two disasters, which occurred in 2009 and 2010; the first weather system did not pass directly over the catchment; however, peak rainfall was registered over the basin during the second meteorological event. Field data were collected to associate the depth from the slope surface that material was mobilised at the triggering zone to each mass movement within the catchment. This information has been used to model the landslide susceptibility for two classes of processes, divided into shallow failures for maximum depths of 1 m and deep ones in case of values equal or greater than 1 m. Topographic attributes from a 2-m DEM were used as predictors, together with medium resolution vegetation indexes derived from ASTER scenes and geological, land use and tectonic maps. The presence-only approach discriminated between the two depth classes at the landslide trigger zone, producing excellent prediction skills associated with relatively low variances across a set of 50 randomly generated replicates. The role of each predictor was assessed to ascertain the significance to the final model output. This work uses simple field measurements to produce triggering-thickness susceptibility, which is a novel approach and may perform better as a proxy for landslide hazard assessments with respect to more common susceptibility practises. © 2016, Springer Science+Business Media Dordrecht.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Lombardo L, Fubelli G, Amato G, Bonasera M (2016) Presence-only approach to assess landslide triggering-thickness susceptibility: a test for the Mili catchment (north-eastern Sicily, Italy). Natural Hazards 84: 565–588. Available: http://dx.doi.org/10.1007/s11069-016-2443-5.
Publisher:
Springer Nature
Journal:
Natural Hazards
Issue Date:
29-Jun-2016
DOI:
10.1007/s11069-016-2443-5
Type:
Article
ISSN:
0921-030X; 1573-0840
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorLombardo, Luigien
dc.contributor.authorFubelli, G.en
dc.contributor.authorAmato, G.en
dc.contributor.authorBonasera, M.en
dc.date.accessioned2016-11-03T08:32:26Z-
dc.date.available2016-11-03T08:32:26Z-
dc.date.issued2016-06-29en
dc.identifier.citationLombardo L, Fubelli G, Amato G, Bonasera M (2016) Presence-only approach to assess landslide triggering-thickness susceptibility: a test for the Mili catchment (north-eastern Sicily, Italy). Natural Hazards 84: 565–588. Available: http://dx.doi.org/10.1007/s11069-016-2443-5.en
dc.identifier.issn0921-030Xen
dc.identifier.issn1573-0840en
dc.identifier.doi10.1007/s11069-016-2443-5en
dc.identifier.urihttp://hdl.handle.net/10754/621573-
dc.description.abstractThis study evaluates the performances of the presence-only approach, Maximum Entropy, in assessing landslide triggering-thickness susceptibility within the Mili catchment (Sicily, Italy). This catchment underwent several meteorological stresses, resulting in hundreds of shallow rapid mass movements between 2007 and 2011. In particular, the area has become known for two disasters, which occurred in 2009 and 2010; the first weather system did not pass directly over the catchment; however, peak rainfall was registered over the basin during the second meteorological event. Field data were collected to associate the depth from the slope surface that material was mobilised at the triggering zone to each mass movement within the catchment. This information has been used to model the landslide susceptibility for two classes of processes, divided into shallow failures for maximum depths of 1 m and deep ones in case of values equal or greater than 1 m. Topographic attributes from a 2-m DEM were used as predictors, together with medium resolution vegetation indexes derived from ASTER scenes and geological, land use and tectonic maps. The presence-only approach discriminated between the two depth classes at the landslide trigger zone, producing excellent prediction skills associated with relatively low variances across a set of 50 randomly generated replicates. The role of each predictor was assessed to ascertain the significance to the final model output. This work uses simple field measurements to produce triggering-thickness susceptibility, which is a novel approach and may perform better as a proxy for landslide hazard assessments with respect to more common susceptibility practises. © 2016, Springer Science+Business Media Dordrecht.en
dc.publisherSpringer Natureen
dc.subjectLandslideen
dc.titlePresence-only approach to assess landslide triggering-thickness susceptibility: a test for the Mili catchment (north-eastern Sicily, Italy)en
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalNatural Hazardsen
dc.contributor.institutionDepartment of Geosciences, University of Tübingen, Rümelinstraße 19-23, Tübingen, Germanyen
dc.contributor.institutionDepartment of Earth Sciences, University of Torino, Via Valperga Caluso 35, Turin, Italyen
dc.contributor.institutionDepartment of Sciences, Roma Tre University, Largo S.L. Murialdo 1, Rome, Italyen
kaust.authorLombardo, Luigien
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.