resumen
Abstract
We investigate the timescales of the horizontal mass flux decay of wind remobilised volcanic particles in Argentina, associated with the tephra-fallout deposit produced by the 2011–2012 Cordón Caulle (Chile) eruption. Particle removal processes are controlled by complex interactions of meteorological conditions, surface properties and particle depletion with time. We find that ash remobilisation follows a two-phase exponential decay with specific
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dc.contributor.author | Dominguez, Lucia | |
dc.contributor.author | Rossi, Eduardo | |
dc.contributor.author | Mingari, Leonardo | |
dc.contributor.author | Bonadonna, Costanza | |
dc.contributor.author | Forte, Pablo Brian | |
dc.contributor.author | Panebianco, Juan Esteban | |
dc.contributor.author | Bran, Donaldo Eduardo | |
dc.date.accessioned | 2023-08-22T11:13:13Z | |
dc.date.available | 2023-08-22T11:13:13Z | |
dc.date.issued | 2020-09 | |
dc.identifier.issn | 2045-2322 | |
dc.identifier.other | https://doi.org/10.1038/s41598-020-71022-w | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/14969 | |
dc.identifier.uri | https://www.nature.com/articles/s41598-020-71022-w | |
dc.description.abstract | We investigate the timescales of the horizontal mass flux decay of wind remobilised volcanic particles in Argentina, associated with the tephra-fallout deposit produced by the 2011–2012 Cordón Caulle (Chile) eruption. Particle removal processes are controlled by complex interactions of meteorological conditions, surface properties and particle depletion with time. We find that ash remobilisation follows a two-phase exponential decay with specific timescales for the initial input of fresh ash (1–74 days) and the following soil stabilisation processes (3–52 months). The characteristic timescales as a function of particle size shows two minimum values, identified for sizes around 2 and 19–37 μ m, suggesting that these size-range particles are remobilised more easily, due to the interaction between saltation and suspension-induced processes. We find that in volcanic regions, characterised by a sudden release and a subsequent depletion of particles, the availability of wind-erodible particles plays a major role due to compaction and removal of fine particles. We propose, therefore, a simple and reproducible empirical model to describe the mass flux decay of remobilised ash in a supply-limited environment. This methodology represents an innovative approach to link field measurements of multi-sized and supply-limited deposits with saltation erosion theory. | eng |
dc.format | application/pdf | es_AR |
dc.language.iso | eng | es_AR |
dc.publisher | Springer Nature | es_AR |
dc.rights | info:eu-repo/semantics/openAccess | es_AR |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | es_AR |
dc.source | Scientific Reports 10 : 14456 (2020) | es_AR |
dc.subject | Cenizas | es_AR |
dc.subject | Ashes | eng |
dc.subject | Materiales Volcánicos | es_AR |
dc.subject | Volcanic Materials | eng |
dc.subject | Tamaño de la Partícula | es_AR |
dc.subject | Particle size | eng |
dc.subject | Viento | es_AR |
dc.subject | Wind | eng |
dc.subject | Erupciones Volcánicas | es_AR |
dc.subject | Volcanic Eruptions | eng |
dc.subject.other | Remobilisation | eng |
dc.subject.other | Mass Flux Decay | eng |
dc.subject.other | Cordón Caulle | es_AR |
dc.subject.other | Región Patagónica | es_AR |
dc.title | Mass fux decay timescales of volcanic particles due to aeolian processes in the Argentinian Patagonia steppe | es_AR |
dc.type | info:ar-repo/semantics/artículo | es_AR |
dc.type | info:eu-repo/semantics/article | es_AR |
dc.type | info:eu-repo/semantics/publishedVersion | es_AR |
dc.rights.license | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | es_AR |
dc.description.origen | EEA Bariloche | es_AR |
dc.description.fil | Fil: Dominguez, Lucia. University of Geneva. Department of Earth Sciences; Suiza | es_AR |
dc.description.fil | Fil: Rossi, Eduardo. University of Geneva. Department of Earth Sciences; Suiza | es_AR |
dc.description.fil | Fil: Mingari, Leonardo. Barcelona Supercomputing Center; España | es_AR |
dc.description.fil | Fil: Bonadonna, Costanza. University of Geneva. Department of Earth Sciences; Suiza | es_AR |
dc.description.fil | Fil: Forte, Pablo Brian. Universidad de Buenos Aires. Instituto de Estudios Andinos; Argentina | es_AR |
dc.description.fil | Fil: Forte, Pablo Brian. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina | es_AR |
dc.description.fil | Fil: Panebianco, Juan Esteban. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales; Argentina | es_AR |
dc.description.fil | Fil: Panebianco, Juan Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina | es_AR |
dc.description.fil | Fil: Bran, Donaldo Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina | es_AR |
dc.subtype | cientifico |
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