Ash resuspension related to the 2011–2012 Cordón Caulle eruption, Chile, in a rural community of Patagonia, Argentina

The 2011–2012 Cordón Caulle eruption emitted about 1 km3 of rhyodacitic tephra. Dominant westerly winds in the region caused most of the primary tephra to deposit in neighboring Argentina. In addition to the impact of widespread dispersal and fallout of primary tephra during the eruption, Argentinaw...

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Main Authors: Forte, Pablo, Dominguez, Lucia, Bonadonna, Constanza, Gregg, Chris E., Bran, Donaldo Eduardo, Bird, Deanne, Castro, Jonathan M.
Format: info:ar-repo/semantics/artículo
Language:Inglés
Published: 2018
Subjects:
Online Access:http://hdl.handle.net/20.500.12123/1927
https://www.sciencedirect.com/science/article/pii/S0377027317305875
https://doi.org/10.1016/j.jvolgeores.2017.11.021
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author Forte, Pablo
Dominguez, Lucia
Bonadonna, Constanza
Gregg, Chris E.
Bran, Donaldo Eduardo
Bird, Deanne
Castro, Jonathan M.
author_browse Bird, Deanne
Bonadonna, Constanza
Bran, Donaldo Eduardo
Castro, Jonathan M.
Dominguez, Lucia
Forte, Pablo
Gregg, Chris E.
author_facet Forte, Pablo
Dominguez, Lucia
Bonadonna, Constanza
Gregg, Chris E.
Bran, Donaldo Eduardo
Bird, Deanne
Castro, Jonathan M.
author_sort Forte, Pablo
collection INTA Digital
description The 2011–2012 Cordón Caulle eruption emitted about 1 km3 of rhyodacitic tephra. Dominant westerly winds in the region caused most of the primary tephra to deposit in neighboring Argentina. In addition to the impact of widespread dispersal and fallout of primary tephra during the eruption, Argentinawas also significantly affected by remobilization of the primary ash even several years after the climactic phase of the eruption. In this mixed methods study,we combine aspects of natural and social sciences to characterize the ash resuspension events associated with the 2011–2012 Cordón Caulle deposits and assess the impacts on the Argentinian farming community of Ingeniero Jacobacci in the Patagonian Steppe. Our findings showthe primary importance of wind, rainfall and ash availability in controlling the occurrence and persistence of ash resuspension events. The role played by these variables was also reflected in the seasonal distribution of events observed. Regarding the impacts, our results complement those of earlier studies and demonstrate that ash resuspension events can exacerbate the negative impact of primary tephra fallout events from the time of deposition to many years after the eruption. Only after five years has the environment and the farming community begun to show signs of recovery. Our findings also highlight the importance of assessing ash resuspension events in multi-hazard scenarios involving volcanic and hydrometeorologic hazards.
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institution Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina)
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publishDateRange 2018
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spelling INTA19272018-03-02T13:35:03Z Ash resuspension related to the 2011–2012 Cordón Caulle eruption, Chile, in a rural community of Patagonia, Argentina Forte, Pablo Dominguez, Lucia Bonadonna, Constanza Gregg, Chris E. Bran, Donaldo Eduardo Bird, Deanne Castro, Jonathan M. Ceniza Erupciones Volcánicas Lluvia Viento Ashes Volcanic Eruptions Rain Winds Argentina Cordón Caulle Región Patagónica The 2011–2012 Cordón Caulle eruption emitted about 1 km3 of rhyodacitic tephra. Dominant westerly winds in the region caused most of the primary tephra to deposit in neighboring Argentina. In addition to the impact of widespread dispersal and fallout of primary tephra during the eruption, Argentinawas also significantly affected by remobilization of the primary ash even several years after the climactic phase of the eruption. In this mixed methods study,we combine aspects of natural and social sciences to characterize the ash resuspension events associated with the 2011–2012 Cordón Caulle deposits and assess the impacts on the Argentinian farming community of Ingeniero Jacobacci in the Patagonian Steppe. Our findings showthe primary importance of wind, rainfall and ash availability in controlling the occurrence and persistence of ash resuspension events. The role played by these variables was also reflected in the seasonal distribution of events observed. Regarding the impacts, our results complement those of earlier studies and demonstrate that ash resuspension events can exacerbate the negative impact of primary tephra fallout events from the time of deposition to many years after the eruption. Only after five years has the environment and the farming community begun to show signs of recovery. Our findings also highlight the importance of assessing ash resuspension events in multi-hazard scenarios involving volcanic and hydrometeorologic hazards. EEA Bariloche Fil: Forte, Pablo. University of Mainz. Institute of Geosciences; Alemania Fil: Dominguez, Lucia. University of Geneva. Department of Earth Sciences; Suiza Fil: Bonadonna, Constanza. University of Geneva. Department of Earth Sciences; Suiza Fil: Gregg, Chris E. East Tennessee State University. Department of Geosciences; Estados Unidos Fil: Bran, Donaldo Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina Fil: Bird, Deanne. University of Iceland. Institute of Life and Environmental Sciences; Islandia Fil: Castro, Jonathan M. University of Mainz. Institute of Geosciences; Alemania 2018-03-01T15:15:43Z 2018-03-01T15:15:43Z 2018 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/1927 https://www.sciencedirect.com/science/article/pii/S0377027317305875 0377-0273 https://doi.org/10.1016/j.jvolgeores.2017.11.021 eng info:eu-repo/semantics/restrictedAccess application/pdf Journal of Volcanology and Geothermal Research 350 : 18-32 (January 2018)
spellingShingle Ceniza
Erupciones Volcánicas
Lluvia
Viento
Ashes
Volcanic Eruptions
Rain
Winds
Argentina
Cordón Caulle
Región Patagónica
Forte, Pablo
Dominguez, Lucia
Bonadonna, Constanza
Gregg, Chris E.
Bran, Donaldo Eduardo
Bird, Deanne
Castro, Jonathan M.
Ash resuspension related to the 2011–2012 Cordón Caulle eruption, Chile, in a rural community of Patagonia, Argentina
title Ash resuspension related to the 2011–2012 Cordón Caulle eruption, Chile, in a rural community of Patagonia, Argentina
title_full Ash resuspension related to the 2011–2012 Cordón Caulle eruption, Chile, in a rural community of Patagonia, Argentina
title_fullStr Ash resuspension related to the 2011–2012 Cordón Caulle eruption, Chile, in a rural community of Patagonia, Argentina
title_full_unstemmed Ash resuspension related to the 2011–2012 Cordón Caulle eruption, Chile, in a rural community of Patagonia, Argentina
title_short Ash resuspension related to the 2011–2012 Cordón Caulle eruption, Chile, in a rural community of Patagonia, Argentina
title_sort ash resuspension related to the 2011 2012 cordon caulle eruption chile in a rural community of patagonia argentina
topic Ceniza
Erupciones Volcánicas
Lluvia
Viento
Ashes
Volcanic Eruptions
Rain
Winds
Argentina
Cordón Caulle
Región Patagónica
url http://hdl.handle.net/20.500.12123/1927
https://www.sciencedirect.com/science/article/pii/S0377027317305875
https://doi.org/10.1016/j.jvolgeores.2017.11.021
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