The environmental impact of the Puyehue-Cordon Caulle 2011 volcanic eruption on Buenos Aires

On 4 June 2011, the volcanic complex Puyehue-Cordon Caulle located in the Chilean Andes erupted, producing a plume of gases and particles that eventually circled the Southern Hemisphere, disrupting air travel and depositing ash in large quantities. On eight occasions, the plume passed over the city...

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Autores principales: Raga, G.B., Baumgardner, D., Ulke, A.G., Torres Brizuela, M., Kucienska, B.
Formato: JOUR
Materias:
absorption
environmental impact
light effect
MODIS
PAH
quantitative analysis
Southern Hemisphere
spatial variation
temporal variation
volcanic aerosol
volcanic ash
volcanic eruption
Argentina
Buenos Aires [Federal District]
Chile
Federal District [Argentina]
Los Lagos
Puyehue
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_15618633_v13_n9_p2319_Raga
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_15618633_v13_n9_p2319_Raga
record_format dspace
spelling todo:paper_15618633_v13_n9_p2319_Raga2023-10-03T16:26:24Z The environmental impact of the Puyehue-Cordon Caulle 2011 volcanic eruption on Buenos Aires Raga, G.B. Baumgardner, D. Ulke, A.G. Torres Brizuela, M. Kucienska, B. absorption environmental impact light effect MODIS PAH quantitative analysis Southern Hemisphere spatial variation temporal variation volcanic aerosol volcanic ash volcanic eruption Argentina Buenos Aires [Federal District] Chile Federal District [Argentina] Los Lagos Puyehue On 4 June 2011, the volcanic complex Puyehue-Cordon Caulle located in the Chilean Andes erupted, producing a plume of gases and particles that eventually circled the Southern Hemisphere, disrupting air travel and depositing ash in large quantities. On eight occasions, the plume passed over the city of Buenos Aires, Argentina, leading local authorities to close the two international airports. <br><br> The eruption occurred during an on-going field campaign when measurements of the properties of atmospheric aerosol particles were being made in Buenos Aires as part of a year-long study of the concentration and optical properties of aerosol at one site in the city. The suite of instruments deployed in Buenos Aires were not tailored to measurements of volcanic ash, but were designed to characterize urban conditions. Nevertheless, these measurements were analysed for periods when vertical profiles of aerosol backscatter, made with a ceilometer, clearly showed the presence of the volcano plume over the research site and resulted in airport closure. <br><br> Aerosol optical thickness derived from AERONET, MODIS and a ceilometer at our research site, all show enhanced values clearly indicating that the three platforms identified the volcanic plume simultaneously. However, a quantitative comparison of the different estimates proves difficult, suggesting large spatial and temporal variability of the plume. <br><br> Our results indicate that the number concentration of condensation nuclei (CN), the mass concentration of particle-bound polycyclic aromatic hydrocarbons (PPAH) and the light absorption coefficient exceeded the average background values by more than one standard deviation during the events of volcanic plume. The anomalous concentrations of CN suggest new particle formation, presumably from the conversion of SO2, while the anomalous concentrations of PPAH may come from the uptake of PAHs on the plume particles or from chemical reactions on the surface of plume particles. The anomalous absorption coefficients indicate that plume particles may contain certain compounds that can absorb radiation at 550 nm. Another possible explanation consistent with the observations is the scavenging of black carbon from urban sources as the plume descends through the boundary layer to the surface. In addition, the volcanic plume influenced the local meteorology resulting in a decrease of the temperature when compared to the average temperature during days with no plume present. © Author(s) 2013. Fil:Ulke, A.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Torres Brizuela, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15618633_v13_n9_p2319_Raga
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic absorption
environmental impact
light effect
MODIS
PAH
quantitative analysis
Southern Hemisphere
spatial variation
temporal variation
volcanic aerosol
volcanic ash
volcanic eruption
Argentina
Buenos Aires [Federal District]
Chile
Federal District [Argentina]
Los Lagos
Puyehue
spellingShingle absorption
environmental impact
light effect
MODIS
PAH
quantitative analysis
Southern Hemisphere
spatial variation
temporal variation
volcanic aerosol
volcanic ash
volcanic eruption
Argentina
Buenos Aires [Federal District]
Chile
Federal District [Argentina]
Los Lagos
Puyehue
Raga, G.B.
Baumgardner, D.
Ulke, A.G.
Torres Brizuela, M.
Kucienska, B.
The environmental impact of the Puyehue-Cordon Caulle 2011 volcanic eruption on Buenos Aires
topic_facet absorption
environmental impact
light effect
MODIS
PAH
quantitative analysis
Southern Hemisphere
spatial variation
temporal variation
volcanic aerosol
volcanic ash
volcanic eruption
Argentina
Buenos Aires [Federal District]
Chile
Federal District [Argentina]
Los Lagos
Puyehue
description On 4 June 2011, the volcanic complex Puyehue-Cordon Caulle located in the Chilean Andes erupted, producing a plume of gases and particles that eventually circled the Southern Hemisphere, disrupting air travel and depositing ash in large quantities. On eight occasions, the plume passed over the city of Buenos Aires, Argentina, leading local authorities to close the two international airports. <br><br> The eruption occurred during an on-going field campaign when measurements of the properties of atmospheric aerosol particles were being made in Buenos Aires as part of a year-long study of the concentration and optical properties of aerosol at one site in the city. The suite of instruments deployed in Buenos Aires were not tailored to measurements of volcanic ash, but were designed to characterize urban conditions. Nevertheless, these measurements were analysed for periods when vertical profiles of aerosol backscatter, made with a ceilometer, clearly showed the presence of the volcano plume over the research site and resulted in airport closure. <br><br> Aerosol optical thickness derived from AERONET, MODIS and a ceilometer at our research site, all show enhanced values clearly indicating that the three platforms identified the volcanic plume simultaneously. However, a quantitative comparison of the different estimates proves difficult, suggesting large spatial and temporal variability of the plume. <br><br> Our results indicate that the number concentration of condensation nuclei (CN), the mass concentration of particle-bound polycyclic aromatic hydrocarbons (PPAH) and the light absorption coefficient exceeded the average background values by more than one standard deviation during the events of volcanic plume. The anomalous concentrations of CN suggest new particle formation, presumably from the conversion of SO2, while the anomalous concentrations of PPAH may come from the uptake of PAHs on the plume particles or from chemical reactions on the surface of plume particles. The anomalous absorption coefficients indicate that plume particles may contain certain compounds that can absorb radiation at 550 nm. Another possible explanation consistent with the observations is the scavenging of black carbon from urban sources as the plume descends through the boundary layer to the surface. In addition, the volcanic plume influenced the local meteorology resulting in a decrease of the temperature when compared to the average temperature during days with no plume present. © Author(s) 2013.
format JOUR
author Raga, G.B.
Baumgardner, D.
Ulke, A.G.
Torres Brizuela, M.
Kucienska, B.
author_facet Raga, G.B.
Baumgardner, D.
Ulke, A.G.
Torres Brizuela, M.
Kucienska, B.
author_sort Raga, G.B.
title The environmental impact of the Puyehue-Cordon Caulle 2011 volcanic eruption on Buenos Aires
title_short The environmental impact of the Puyehue-Cordon Caulle 2011 volcanic eruption on Buenos Aires
title_full The environmental impact of the Puyehue-Cordon Caulle 2011 volcanic eruption on Buenos Aires
title_fullStr The environmental impact of the Puyehue-Cordon Caulle 2011 volcanic eruption on Buenos Aires
title_full_unstemmed The environmental impact of the Puyehue-Cordon Caulle 2011 volcanic eruption on Buenos Aires
title_sort environmental impact of the puyehue-cordon caulle 2011 volcanic eruption on buenos aires
url http://hdl.handle.net/20.500.12110/paper_15618633_v13_n9_p2319_Raga
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