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dc.contributor.authorPaez, Paula Andrea-
dc.contributor.authorCogliati, Marisa Gloria-
dc.contributor.authorCaselli, Alberto Tomás-
dc.contributor.authorMonasterio, Ana María-
dc.date.accessioned2021-07-29T15:12:58Z-
dc.date.available2021-07-29T15:12:58Z-
dc.date.issued2021-
dc.identifier.citationPaez P.A., Cogliati M.G., Caselli A.T., Monasterio A. (2021). An analysis of volcanic SO2 and ash emissions from Copahue volcano. Journal of South American Earth Sciences; 110; 103365es_ES
dc.identifier.issn0895-9811es_ES
dc.identifier.otherhttps://www.sciencedirect.com/science/article/pii/S0895981121002121?via%3Dihubes_ES
dc.identifier.urihttp://rid.unrn.edu.ar/handle/20.500.12049/7393-
dc.description.abstractDuring 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/kges_ES
dc.format.extentp. 103365es_ES
dc.language.isoenes_ES
dc.publisherElsevieres_ES
dc.relation.urihttps://www.sciencedirect.com/journal/journal-of-south-american-earth-scienceses_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/-
dc.titleAn analysis of volcanic SO2 and ash emissions from Copahue volcanoes_ES
dc.typeArticuloes_ES
dc.rights.licenseCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)-
dc.description.filiationPaez, Paula Andrea. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.es_ES
dc.description.filiationCogliati, Marisa Gloria. Universidad Nacional del Comahue, Departamento de Geografía, FACIAS - FAHU. Argentina.es_ES
dc.description.filiationCaselli, Alberto. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.es_ES
dc.description.filiationMonasterio, Ana María. Centro de Salud Caviahue, Ministerio de Salud Neuquén (Health Center of Caviahue, Ministry of Health. Neuquén, Argentina.es_ES
dc.subject.keywordCopahue Volcanoes_ES
dc.subject.keywordHYSPLITes_ES
dc.subject.keywordVolcanic Ashes_ES
dc.subject.keywordAsh Leachatees_ES
dc.subject.keywordSO2es_ES
dc.subject.keywordRemote Sensinges_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
dc.subject.materiaCiencias Exactas y Naturaleses_ES
dc.origin.lugarDesarrolloUniversidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geologíaes_ES
dc.relation.journalissue110es_ES
dc.description.reviewtruees_ES
dc.description.resumen-es_ES
dc.identifier.doihttps://doi.org/10.1016/j.jsames.2021.103365-
dc.relation.journalTitleJournal of South American Earth Scienceses_ES
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