Insights from the topographic characteristics of a large global catalog of rainfall-induced landslide event inventories

dc.contributor.authorEmberson, Robert
dc.contributor.authorKirschbaum, Dalia B.
dc.contributor.authorAmatya, Pukar
dc.contributor.authorTanyas, Hakan
dc.contributor.authorMarc, Odin
dc.date.accessioned2022-10-05T17:02:00Z
dc.date.available2022-10-05T17:02:00Z
dc.date.issued2022-04-01
dc.description.abstractLandslides are a key hazard in high-relief areas around the world and pose a risk to populations and infrastructure. It is important to understand where landslides are likely to occur in the landscape to inform local analyses of exposure and potential impacts. Large triggering events such as earthquakes or major rain storms often cause hundreds or thousands of landslides, and mapping the landslide populations generated by these events can provide extensive datasets of landslide locations. Previous work has explored the characteristic locations of landslides triggered by seismic shaking, but rainfall-induced landslides are likely to occur in different parts of a given landscape when compared to seismically induced failures. Here we show measurements of a range of topographic parameters associated with rainfall-induced landslides inventories, including a number of previously unpublished inventories which we also present here. We find that the average upstream angle and compound topographic index are strong predictors of landslide scar location, while the local relief and topographic position index provide a stronger sense of where landslide material may end up (and thus where hazard may be highest). By providing a large compilation of inventory data for open use by the landslide community, we suggest that this work could be useful for other regional and global landslide modeling studies and local calibration of landslide susceptibility assessment, as well as hazard mitigation studies.en_US
dc.description.sponsorshipThis research has been supported by the Science Mission Directorate (grant no. 18-DISASTER18-0022). This work utilized data made available through the NASA Commercial Smallsat Data Acquisition (CSDA) Program.en_US
dc.description.urihttps://nhess.copernicus.org/articles/22/1129/2022/en_US
dc.format.extent21 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2s1zt-sbwc
dc.identifier.citationEmberson, R., Kirschbaum, D. B., Amatya, P., Tanyas, H., and Marc, O.: Insights from the topographic characteristics of a large global catalog of rainfall-induced landslide event inventories, Nat. Hazards Earth Syst. Sci., 22, 1129–1149, https://doi.org/10.5194/nhess-22-1129-2022, 2022.en_US
dc.identifier.urihttps://doi.org/10.5194/nhess-22-1129-2022
dc.identifier.urihttp://hdl.handle.net/11603/26099
dc.language.isoen_USen_US
dc.publisherEGUen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC GESTAR II Collection
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.en_US
dc.rightsPublic Domain Mark 1.0*
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleInsights from the topographic characteristics of a large global catalog of rainfall-induced landslide event inventoriesen_US
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0002-2823-4453en_US

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