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dc.contributor.author
Páez, Paula Andrea
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dc.contributor.author
Cogliati, Marisa Gloria
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dc.contributor.author
Caselli, Alberto Tomás
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dc.contributor.author
Monasterio, Ana María
dc.date.available
2022-10-14T17:40:11Z
dc.date.issued
2021-10
dc.identifier.citation
Páez, Paula Andrea; Cogliati, Marisa Gloria; Caselli, Alberto Tomás; Monasterio, Ana María; An analysis of volcanic SO2 and ash emissions from Copahue volcano; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 110; 103365; 10-2021; 1-15
dc.identifier.issn
0895-9811
dc.identifier.uri
http://hdl.handle.net/11336/173316
dc.description.abstract
During 2016, Copahue volcano (Neuquén, Argentina) made several eruptions and emitted ash and gases. This paper presents an analysis of the volcanic plume using dispersion models, remote sensor data, and analysis of sedimentary ash collected at the Caviahue Health Center from early October to 21st December 2016. Water-soluble elements contained in volcanic ash leachates were quantified. We have carried out a qualitative comparison of HYSPLIT dispersion simulations with SO2 and aerosol data obtained from OMI and OMPS sensor on board of AURA and SUOMI NPP satellites, as well as between modeled concentrations and sampled surface sediments. Good agreement was observed between gas dispersion plumes from HYSPLIT and total column SO2 values, as well as between volcanic ash plumes and satellite aerosol indices. The average SO2 emission rate in the analyzed events was 985.7 ± 492.9 t/d and the average emission rate of ash 2.6 103 kt/d (2.9 104 kg/s). In situ observations of ash deposition rates peaked at 0.23 g/h on 30th November. The average measured deposition rate from 1st October to 21st December was 0.12 g/h, consistent with modeled values. The geochemical analysis of ash leachate showed major content of sodium (Na), calcium (Ca) and magnesium (Mg) with 207.8 mg/kg, 209.5 mg/kg, and 195.3 mg/kg, respectively. Concentrations sulfate, chlorides, and fluoride anions were 990.7 mg/kg, 352.34 mg/kg, and 129.15 mg/kg, respectively. The SO2/HCl molar ratio was 1.05. In addition, traces of As, Cr, Hg, Mo, Pb, and Se were detected in concentrations ranging from 0.2 mg/kg to 6.0 mg/kg.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Pergamon-Elsevier Science Ltd
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
ASH LEACHATE
dc.subject
COPAHUE VOLCANO
dc.subject
HYSPLIT
dc.subject
REMOTE SENSING
dc.subject
SO2
dc.subject
VOLCANIC ASH
dc.subject.classification
Vulcanología
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
An analysis of volcanic SO2 and ash emissions from Copahue volcano
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-09-20T10:51:24Z
dc.journal.volume
110
dc.journal.number
103365
dc.journal.pagination
1-15
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Páez, Paula Andrea. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro de Investigaciones y Transferencia de Rio Negro. Sede Choele Choel del Centro de Investigaciones y Transferencia de Rio Negro | Universidad Nacional de Rio Negro. Centro de Investigaciones y Transferencia de Rio Negro. Sede Choele Choel del Centro de Investigaciones y Transferencia de Rio Negro.; Argentina
dc.description.fil
Fil: Cogliati, Marisa Gloria. Universidad Nacional del Comahue. Facultad de Humanidades. Departamento de Geografía; Argentina
dc.description.fil
Fil: Caselli, Alberto Tomás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
dc.description.fil
Fil: Monasterio, Ana María. Gobierno de la Provincia del Neuquen. Ministerio de Salud; Argentina
dc.journal.title
Journal of South American Earth Sciences
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jsames.2021.103365
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0895981121002121
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