The response of a mountain drainage basin to extreme events: the impact of Vaia storm on Rio Cordon (Dolomites, Italy)

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dc.contributor.authorPellegrini, Giacomo
dc.contributor.authorMao, Luca
dc.contributor.authorPicco, Lorenzo
dc.date.accessioned2025-01-21T00:03:42Z
dc.date.available2025-01-21T00:03:42Z
dc.date.issued2024
dc.description.abstractCurrent literature is limited in understanding the responses of mountain basins to large disturbances, especially when it comes to integrating analyses of sediment transport, geomorphic changes, and topographical conditions, as these aspects are often examined at varying spatial scales. This manuscript explores the impact of the Vaia storm (27-30 October 2018) on the Rio Cordon Basin (Dolomites, Italy). Integrating data from three studies conducted at different spatial scales, it examines hydrological, geomorphological, and sedimentological responses of the basin to the large infrequent event. The findings encompass changes in channel network, step-pool morphology evolution, and sediment flux alterations. Streambed remobilization, boulder mobility, incision, and lateral erosion were observed. The step-pool morphology experienced disruption but recovered to stability within two years. Surprisingly, suspended sediment fluxes and yields after two years form the event (42 t km-2 years-1 ) were consistent with pre-Vaia conditions (40 t km-2 years-1 ). The integration of pre- and post-event data proved valuable for understanding the basin's responses to extreme events. Based on current conditions, Rio Cordon appears to be returning to a pre-event state, establishing a new dynamic equilibrium, as the Vaia event induced morphological changes while sediment fluxes and step-pool stability remained in line with pre- event conditions.
dc.description.funderEuropean Union-NextGenerationEU
dc.fuente.origenWOS
dc.identifier.doi10.3301/ROL.2024.42
dc.identifier.issn2035-8008
dc.identifier.urihttps://doi.org/10.3301/ROL.2024.42
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95475
dc.identifier.wosidWOS:001359537500001
dc.language.isoen
dc.pagina.final19
dc.pagina.inicio14
dc.revistaRendiconti online della societa geologica italiana
dc.rightsacceso restringido
dc.subjectVaia storm
dc.subjectRio Cordon
dc.subjectmountain basin resilience
dc.subjectdynamic equilibrium
dc.subjectsediment transport
dc.titleThe response of a mountain drainage basin to extreme events: the impact of Vaia storm on Rio Cordon (Dolomites, Italy)
dc.typeartículo
dc.volumen64
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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