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A platform for research: civil engineering, architecture and urbanism
Corrigendum: Small volcanic eruptions and the stratospheric sulfate aerosol burden
In my original perspective piece (Pyle 2012), I mistakenly suggested that both Sawamura et al (2012) and Bourassa et al (2012) had attributed the lofting of the Nabro plume into the stratosphere to the strong Asian summer monsoon. In fact, while the ash clouds that accompanied the most explosive phases of the Nabro eruption were reported by the Toulouse VAAC to have reached 9–14 km on 13–14 June (Smithsonian Institution 2011), the Micro Pulse Lidar profile from Sede Boker, Israel, for the same date (14 June) shows a strong peak in the scattering ratio at around 17 km elevation. This was interpreted by Sawamura et al (2012) as being potentially due to ash and sulfate particles, and would suggest that the initial phase of the eruption injected material to this altitude. Sawamura et al (2012) also showed that the transport of the volcanic plume to Sede Boker was consistent with forward air-trajectory models, which for that time period showed a strong anticyclonic vortex due to the Asian summer monsoon, but they did not suggest that the monsoonal circulation was responsible for lofting of the plume. Bourassa et al (2012) identified a stratospheric enhancement of aerosol optical depth across eastern Asia beginning in early July 2011, which they attributed to the vertical transport of volcanic SO2 from the eruption plume into the lower stratosphere. Further work, using other techniques that can resolve altitude, is required to fully understand the time-history of the volcanic ash and gas plumes, and the sulfate aerosol that subsequently developed.
Corrigendum: Small volcanic eruptions and the stratospheric sulfate aerosol burden
In my original perspective piece (Pyle 2012), I mistakenly suggested that both Sawamura et al (2012) and Bourassa et al (2012) had attributed the lofting of the Nabro plume into the stratosphere to the strong Asian summer monsoon. In fact, while the ash clouds that accompanied the most explosive phases of the Nabro eruption were reported by the Toulouse VAAC to have reached 9–14 km on 13–14 June (Smithsonian Institution 2011), the Micro Pulse Lidar profile from Sede Boker, Israel, for the same date (14 June) shows a strong peak in the scattering ratio at around 17 km elevation. This was interpreted by Sawamura et al (2012) as being potentially due to ash and sulfate particles, and would suggest that the initial phase of the eruption injected material to this altitude. Sawamura et al (2012) also showed that the transport of the volcanic plume to Sede Boker was consistent with forward air-trajectory models, which for that time period showed a strong anticyclonic vortex due to the Asian summer monsoon, but they did not suggest that the monsoonal circulation was responsible for lofting of the plume. Bourassa et al (2012) identified a stratospheric enhancement of aerosol optical depth across eastern Asia beginning in early July 2011, which they attributed to the vertical transport of volcanic SO2 from the eruption plume into the lower stratosphere. Further work, using other techniques that can resolve altitude, is required to fully understand the time-history of the volcanic ash and gas plumes, and the sulfate aerosol that subsequently developed.
Corrigendum: Small volcanic eruptions and the stratospheric sulfate aerosol burden
David M Pyle (author)
2012
Article (Journal)
Electronic Resource
Unknown
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Corrigendum: Small volcanic eruptions and the stratospheric sulfate aerosol burden
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