On the role of the eruption of the Merapi volcano in an anomalous total ozone decrease over Tomsk in April 2011

In April 2011, at Northern Hemisphere midlatitudes, a long-term anomalous decrease in the total ozone content was recorded over a number of regions, attributed to echoes of a large-scale Arctic ozone anomaly, observed in March. We showed that stratospheric ozone destruction over Tomsk during that pe...

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Bibliographic Details
Published inAtmospheric and oceanic optics Vol. 29; no. 3; pp. 298 - 303
Main Authors Zuev, V. V., Zueva, N. E., Savelieva, E. S., Bazhenov, O. E., Nevzorov, A. V.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.05.2016
Subjects
Atmospheric Radiation
Climate
Lasers
Optical Devices
Optical Weather
Optics
Photonics
Physics
Physics and Astronomy
ozone anomalies
volcanic soot aerosol
eruption of Merapi volcano
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Summary:In April 2011, at Northern Hemisphere midlatitudes, a long-term anomalous decrease in the total ozone content was recorded over a number of regions, attributed to echoes of a large-scale Arctic ozone anomaly, observed in March. We showed that stratospheric ozone destruction over Tomsk during that period was caused by an eruption of Indonesian volcano Merapi in November, 2010. The NOAA HYSPLIT model was used to analyze air mass transport in the lower stratosphere starting from coordinates of volcanic emission from the date of eruption until late April. It was found that air masses, containing volcanic aerosol, came to the Northern Hemisphere midlatitudes in late March, 2011, in agreement with high aerosol content recorded in the stratosphere over Tomsk during that period. Based on analysis of temperature and ozone anomalies in the stratosphere over Tomsk, these anomalies were shown to be due to the presence of volcanic soot in aerosol composition.
ISSN:1024-8560
2070-0393
DOI:10.1134/S1024856016030155