Dynamics of volcanic ash remobilisation by wind through the Patagonian steppe after the eruption of Cordón Caulle, 2011
Wind erosion of freshly-deposited volcanic ash causes persistent storms, strongly affecting ecosystems and human activity. Wind erosion of the volcanic ash was measured up to 17 months after the ash deposition, at 7 sites located within the ash-deposition area. The mass flux was measured up to 1.5 m...
| Autores principales: | , , , , |
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| Formato: | info:eu-repo/semantics/article |
| Lenguaje: | Español |
| Publicado: |
2018
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/1930 https://www.nature.com/articles/srep45529.pdf |
| _version_ | 1855034876666839040 |
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| author | Panebianco, Juan Esteban Mendez, Mariano Javier Buschiazzo, Daniel Eduardo Bran, Donaldo Eduardo Gaitan, Juan Jose |
| author_browse | Bran, Donaldo Eduardo Buschiazzo, Daniel Eduardo Gaitan, Juan Jose Mendez, Mariano Javier Panebianco, Juan Esteban |
| author_facet | Panebianco, Juan Esteban Mendez, Mariano Javier Buschiazzo, Daniel Eduardo Bran, Donaldo Eduardo Gaitan, Juan Jose |
| author_sort | Panebianco, Juan Esteban |
| collection | INTA Digital |
| description | Wind erosion of freshly-deposited volcanic ash causes persistent storms, strongly affecting ecosystems and human activity. Wind erosion of the volcanic ash was measured up to 17 months after the ash deposition, at 7 sites located within the ash-deposition area. The mass flux was measured up to 1.5 m above ground level. Mass transport rates were over 125 times the soil wind-erosion rates observed
before the ash deposition, reaching up to 6.3 kg m−1 day−1. Total mass transport of ash during the 17 months ranged between 113.6 and 969.9 kg m−1 depending on topographic location and wind exposure.
The vertical distribution of the mass flux at sites with higher vegetation cover was generally inverted as compared to sites with lower vegetation cover. This situation lasted 7 months and then a shift towards a more uniform vertical distribution was observed, in coincidence with the beginning of the decline of the mass transport rates. Decay rates differed between sites. Despite changes over time, an inverse linear correlation between the mass transports and the mass-flux gradients was found. Both the mass-flux gradients and the average mass-transport rates were not linked with shear-stress partition parameters,
but with the ratio: ash-fall thickness to total vegetation cover. |
| format | info:eu-repo/semantics/article |
| id | INTA1930 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Español |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA19302018-11-14T15:31:30Z Dynamics of volcanic ash remobilisation by wind through the Patagonian steppe after the eruption of Cordón Caulle, 2011 Panebianco, Juan Esteban Mendez, Mariano Javier Buschiazzo, Daniel Eduardo Bran, Donaldo Eduardo Gaitan, Juan Jose Ceniza Erupciones Volcánicas Viento Ashes Volcanic Eruptions Winds Cordón Caullé Región Patagónica Wind erosion of freshly-deposited volcanic ash causes persistent storms, strongly affecting ecosystems and human activity. Wind erosion of the volcanic ash was measured up to 17 months after the ash deposition, at 7 sites located within the ash-deposition area. The mass flux was measured up to 1.5 m above ground level. Mass transport rates were over 125 times the soil wind-erosion rates observed before the ash deposition, reaching up to 6.3 kg m−1 day−1. Total mass transport of ash during the 17 months ranged between 113.6 and 969.9 kg m−1 depending on topographic location and wind exposure. The vertical distribution of the mass flux at sites with higher vegetation cover was generally inverted as compared to sites with lower vegetation cover. This situation lasted 7 months and then a shift towards a more uniform vertical distribution was observed, in coincidence with the beginning of the decline of the mass transport rates. Decay rates differed between sites. Despite changes over time, an inverse linear correlation between the mass transports and the mass-flux gradients was found. Both the mass-flux gradients and the average mass-transport rates were not linked with shear-stress partition parameters, but with the ratio: ash-fall thickness to total vegetation cover. EEA Bariloche Fil: Panebianco, Juan Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina Fil: Mendez, Mariano Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina Fil: Buschiazzo, Daniel Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina Fil: Bran, Donaldo Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina Fil: Gaitan, Juan Jose. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina 2018-03-01T17:00:27Z 2018-03-01T17:00:27Z 2017 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/1930 https://www.nature.com/articles/srep45529.pdf 2045-2322 (online) doi:10.1038/srep45529 spa info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Scientific Reports 7 : Article number: 45529 (2017) |
| spellingShingle | Ceniza Erupciones Volcánicas Viento Ashes Volcanic Eruptions Winds Cordón Caullé Región Patagónica Panebianco, Juan Esteban Mendez, Mariano Javier Buschiazzo, Daniel Eduardo Bran, Donaldo Eduardo Gaitan, Juan Jose Dynamics of volcanic ash remobilisation by wind through the Patagonian steppe after the eruption of Cordón Caulle, 2011 |
| title | Dynamics of volcanic ash remobilisation by wind through the Patagonian steppe after the eruption of Cordón Caulle, 2011 |
| title_full | Dynamics of volcanic ash remobilisation by wind through the Patagonian steppe after the eruption of Cordón Caulle, 2011 |
| title_fullStr | Dynamics of volcanic ash remobilisation by wind through the Patagonian steppe after the eruption of Cordón Caulle, 2011 |
| title_full_unstemmed | Dynamics of volcanic ash remobilisation by wind through the Patagonian steppe after the eruption of Cordón Caulle, 2011 |
| title_short | Dynamics of volcanic ash remobilisation by wind through the Patagonian steppe after the eruption of Cordón Caulle, 2011 |
| title_sort | dynamics of volcanic ash remobilisation by wind through the patagonian steppe after the eruption of cordon caulle 2011 |
| topic | Ceniza Erupciones Volcánicas Viento Ashes Volcanic Eruptions Winds Cordón Caullé Región Patagónica |
| url | http://hdl.handle.net/20.500.12123/1930 https://www.nature.com/articles/srep45529.pdf |
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