Aerosol properties and meteorological conditions in the city of Buenos Aires, Argentina, during the resuspension of volcanic ash from the Puyehue-Cordón Caulle eruption

The eruption in June 2011 of the Puyehue-Cordón Caulle Volcanic Complex in Chile impacted air traffic around the Southern Hemisphere for several months after the initial ash emissions. The ash deposited in vast areas of the Patagonian Steppe was subjected to the strong wind conditions prevalent duri...

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Detalles Bibliográficos
Autor principal: Ulke, Ana Graciela
Publicado: 2016
Materias:
aerosol property
boundary layer
concentration (composition)
dust storm
meteorology
resuspension
thermodynamics
urban atmosphere
vertical profile
volcanic ash
volcanic eruption
wind field
Argentina
Buenos Aires [Federal District]
Federal District [Argentina]
Los Rios [Chile]
Puyehue-Cordon Caulle
Southern Volcanic Zone
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15618633_v16_n9_p2159_Ulke
http://hdl.handle.net/20.500.12110/paper_15618633_v16_n9_p2159_Ulke
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_15618633_v16_n9_p2159_Ulke
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spelling paper:paper_15618633_v16_n9_p2159_Ulke2023-06-08T16:23:54Z Aerosol properties and meteorological conditions in the city of Buenos Aires, Argentina, during the resuspension of volcanic ash from the Puyehue-Cordón Caulle eruption Ulke, Ana Graciela aerosol property boundary layer concentration (composition) dust storm meteorology resuspension thermodynamics urban atmosphere vertical profile volcanic ash volcanic eruption wind field Argentina Buenos Aires [Federal District] Federal District [Argentina] Los Rios [Chile] Puyehue-Cordon Caulle Southern Volcanic Zone The eruption in June 2011 of the Puyehue-Cordón Caulle Volcanic Complex in Chile impacted air traffic around the Southern Hemisphere for several months after the initial ash emissions. The ash deposited in vast areas of the Patagonian Steppe was subjected to the strong wind conditions prevalent during the austral winter and spring experiencing resuspension over various regions of Argentina. In this study we analyze the meteorological conditions that led to the episode of volcanic ash resuspension which impacted the city of Buenos Aires and resulted in the closure of the two main airports in Buenos Aires area (Ezeiza and Aeroparque) on 16 October 2011. A relevant result is that resuspended material (volcanic ash plus dust) imprints a distinguishable feature within the atmospheric thermodynamic vertical profiles. The thermodynamic soundings show the signature of "pulses of drying" in layers associated with the presence of hygroscopic ash in the atmosphere that has already been reported in similar episodes after volcanic eruptions in other parts of the world. This particular footprint can be used to detect the probable existence of volcanic ash layers. This study also illustrates the utility of ceilometers to detect not only cloud base at airports but also volcanic ash plumes at the boundary layer and up to 7gkm altitude. Aerosol properties measured in the city during the resuspension episode indicate the presence of enhanced concentrations of aerosol particles in the boundary layer along with spectral signatures in the measurements at the Buenos Aires AERONET site typical of ash plus dust advected towards the city. The mandatory aviation reports from the National Weather Service about airborne and deposited volcanic ash at the airport near the measurement site (Aeroparque) correlate in time with the enhanced concentrations. The presence of the resuspended material was detected by the CALIOP lidar overpassing the region. Since the dynamics of ash resuspension and recirculation are similar to the dynamics of dust storms, we use the HYSPLIT model with the dust storm module to simulate the episode that affected Buenos Aires. The results of the modeling agree qualitatively with satellite lidar measurements. © 2016 Author(s). Fil:Ulke, A.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15618633_v16_n9_p2159_Ulke http://hdl.handle.net/20.500.12110/paper_15618633_v16_n9_p2159_Ulke
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic aerosol property
boundary layer
concentration (composition)
dust storm
meteorology
resuspension
thermodynamics
urban atmosphere
vertical profile
volcanic ash
volcanic eruption
wind field
Argentina
Buenos Aires [Federal District]
Federal District [Argentina]
Los Rios [Chile]
Puyehue-Cordon Caulle
Southern Volcanic Zone
spellingShingle aerosol property
boundary layer
concentration (composition)
dust storm
meteorology
resuspension
thermodynamics
urban atmosphere
vertical profile
volcanic ash
volcanic eruption
wind field
Argentina
Buenos Aires [Federal District]
Federal District [Argentina]
Los Rios [Chile]
Puyehue-Cordon Caulle
Southern Volcanic Zone
Ulke, Ana Graciela
Aerosol properties and meteorological conditions in the city of Buenos Aires, Argentina, during the resuspension of volcanic ash from the Puyehue-Cordón Caulle eruption
topic_facet aerosol property
boundary layer
concentration (composition)
dust storm
meteorology
resuspension
thermodynamics
urban atmosphere
vertical profile
volcanic ash
volcanic eruption
wind field
Argentina
Buenos Aires [Federal District]
Federal District [Argentina]
Los Rios [Chile]
Puyehue-Cordon Caulle
Southern Volcanic Zone
description The eruption in June 2011 of the Puyehue-Cordón Caulle Volcanic Complex in Chile impacted air traffic around the Southern Hemisphere for several months after the initial ash emissions. The ash deposited in vast areas of the Patagonian Steppe was subjected to the strong wind conditions prevalent during the austral winter and spring experiencing resuspension over various regions of Argentina. In this study we analyze the meteorological conditions that led to the episode of volcanic ash resuspension which impacted the city of Buenos Aires and resulted in the closure of the two main airports in Buenos Aires area (Ezeiza and Aeroparque) on 16 October 2011. A relevant result is that resuspended material (volcanic ash plus dust) imprints a distinguishable feature within the atmospheric thermodynamic vertical profiles. The thermodynamic soundings show the signature of "pulses of drying" in layers associated with the presence of hygroscopic ash in the atmosphere that has already been reported in similar episodes after volcanic eruptions in other parts of the world. This particular footprint can be used to detect the probable existence of volcanic ash layers. This study also illustrates the utility of ceilometers to detect not only cloud base at airports but also volcanic ash plumes at the boundary layer and up to 7gkm altitude. Aerosol properties measured in the city during the resuspension episode indicate the presence of enhanced concentrations of aerosol particles in the boundary layer along with spectral signatures in the measurements at the Buenos Aires AERONET site typical of ash plus dust advected towards the city. The mandatory aviation reports from the National Weather Service about airborne and deposited volcanic ash at the airport near the measurement site (Aeroparque) correlate in time with the enhanced concentrations. The presence of the resuspended material was detected by the CALIOP lidar overpassing the region. Since the dynamics of ash resuspension and recirculation are similar to the dynamics of dust storms, we use the HYSPLIT model with the dust storm module to simulate the episode that affected Buenos Aires. The results of the modeling agree qualitatively with satellite lidar measurements. © 2016 Author(s).
author Ulke, Ana Graciela
author_facet Ulke, Ana Graciela
author_sort Ulke, Ana Graciela
title Aerosol properties and meteorological conditions in the city of Buenos Aires, Argentina, during the resuspension of volcanic ash from the Puyehue-Cordón Caulle eruption
title_short Aerosol properties and meteorological conditions in the city of Buenos Aires, Argentina, during the resuspension of volcanic ash from the Puyehue-Cordón Caulle eruption
title_full Aerosol properties and meteorological conditions in the city of Buenos Aires, Argentina, during the resuspension of volcanic ash from the Puyehue-Cordón Caulle eruption
title_fullStr Aerosol properties and meteorological conditions in the city of Buenos Aires, Argentina, during the resuspension of volcanic ash from the Puyehue-Cordón Caulle eruption
title_full_unstemmed Aerosol properties and meteorological conditions in the city of Buenos Aires, Argentina, during the resuspension of volcanic ash from the Puyehue-Cordón Caulle eruption
title_sort aerosol properties and meteorological conditions in the city of buenos aires, argentina, during the resuspension of volcanic ash from the puyehue-cordón caulle eruption
publishDate 2016
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15618633_v16_n9_p2159_Ulke
http://hdl.handle.net/20.500.12110/paper_15618633_v16_n9_p2159_Ulke
work_keys_str_mv AT ulkeanagraciela aerosolpropertiesandmeteorologicalconditionsinthecityofbuenosairesargentinaduringtheresuspensionofvolcanicashfromthepuyehuecordoncaulleeruption
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