Characterization of a landslide-triggered debris flow at a rainforest-covered mountain region in Brazil

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniversity of Tübingen-
Autor(es): dc.contributorInstitute for Technological Research – IPT-
Autor(es): dc.contributorBrazilian Geological Service – CPRM-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorNational Institute for Space Research – INPE-
Autor(es): dc.contributorCentro de Pesquisas e Desenvolvimento – CENPES-
Autor(es): dc.creatorCabral, Victor Carvalho [UNESP]-
Autor(es): dc.creatorReis, Fábio Augusto Gomes Vieira [UNESP]-
Autor(es): dc.creatorD’Affonseca, Fernando Mazo-
Autor(es): dc.creatorLucía, Ana-
Autor(es): dc.creatordos Santos Corrêa, Claudia Vanessa [UNESP]-
Autor(es): dc.creatorVeloso, Vinicius [UNESP]-
Autor(es): dc.creatorGramani, Marcelo Fischer-
Autor(es): dc.creatorOgura, Agostinho Tadashi-
Autor(es): dc.creatorLazaretti, Andrea Fregolente-
Autor(es): dc.creatorVemado, Felipe-
Autor(es): dc.creatorPereira Filho, Augusto José-
Autor(es): dc.creatordos Santos, Claudia Cristina-
Autor(es): dc.creatorLopes, Eymar Silva Sampaio-
Autor(es): dc.creatorRabaco, Lis Maria Reoni-
Autor(es): dc.creatordo Carmo Giordano, Lucilia [UNESP]-
Autor(es): dc.creatorZarfl, Christiane-
Data de aceite: dc.date.accessioned2022-02-22T00:47:02Z-
Data de disponibilização: dc.date.available2022-02-22T00:47:02Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s11069-021-04811-9-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/206420-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/206420-
Descrição: dc.descriptionDebris flows represent great hazard to humans due to their high destructive power. Understanding their hydrogeomorphic dynamics is fundamental in hazard assessment studies, especially in subtropical and tropical regions where debris flows have scarcely been studied when compared to other mass-wasting processes. Thus, this study aims at systematically analyzing the meteorological and geomorphological factors that characterize a landslide-triggered debris flow at the Pedra Branca catchment (Serra do Mar, Brazil), to quantify the debris flow’s magnitude, peak discharge and velocity. A magnitude comparison with empirical equations (Italian Alps, Taiwan, Serra do Mar) is also conducted. The meteorological analysis is based on satellite data and rain gauge measurements, while the geomorphological characterization is based on terrestrial and aerial investigations, with high spatial resolution. The results indicate that it was a large-sized stony debris flow, with a total magnitude of 120,195 m3, a peak discharge of 2146.7 m3 s−1 and a peak velocity of 26.5 m s−1. The debris flow was triggered by a 188-mm rainfall in 3 h (maximum intensity of 128 mm h−1), with an estimated return period of 15 to 20 years, which, combined with the intense accumulation of on-channel debris (ca. 37,000 m3), indicates that new high-magnitude debris flows in the catchment and the region are likely to occur within the next two decades. The knowledge of the potential frequency and magnitude (F–M) can support the creation of F–M relationships for Serra do Mar, a prerequisite for reliable hazard management and monitoring programs.-
Descrição: dc.descriptionApplied Geology Department Earth and Exact Sciences Institute São Paulo State University – UNESP, Av. 24A, 1555-
Descrição: dc.descriptionGeo- und Umweltforschungszentrum (GUZ) University of Tübingen, Schnarrenbergstraße 94-96-
Descrição: dc.descriptionInstitute for Technological Research – IPT, Av. Prof. Almeida Prado, 532-
Descrição: dc.descriptionBrazilian Geological Service – CPRM, Rua Costa, 55-
Descrição: dc.descriptionInstitute of Astronomy Geophysics and Atmospheric Sciences University of São Paulo – USP, Rua do Matão, 1226-
Descrição: dc.descriptionNational Institute for Space Research – INPE, Av. dos Astronautas, 1758-
Descrição: dc.descriptionCentro de Pesquisas e Desenvolvimento – CENPES, Av. Horácio de Macedo, 950-
Descrição: dc.descriptionApplied Geology Department Earth and Exact Sciences Institute São Paulo State University – UNESP, Av. 24A, 1555-
Idioma: dc.languageen-
Relação: dc.relationNatural Hazards-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBedrock rivers-
Palavras-chave: dc.subjectForensic geomorphological analysis-
Palavras-chave: dc.subjectMagnitude-
Palavras-chave: dc.subjectMass movements-
Palavras-chave: dc.subjectSerra do Mar-
Palavras-chave: dc.subjectShallow landslides-
Título: dc.titleCharacterization of a landslide-triggered debris flow at a rainforest-covered mountain region in Brazil-
Tipo de arquivo: dc.typelivro digital-
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