Effect of ozone anomaly during spring of 2011 on 
long-term (1996-2011) trends of the total ozone content according to ground-based (Tomsk: 56.48N, 85.05E) and satellite spectrophotometric measurements

Oleg E. Bazhenov; Aleksey V. Nevzorov

doi:10.1117/12.2007478

27 November 2012 Effect of ozone anomaly during spring of 2011 on long-term (1996-2011) trends of the total ozone content according to ground-based (Tomsk: 56.48°N, 85.05°E) and satellite spectrophotometric measurements

Oleg E. Bazhenov, Aleksey V. Nevzorov

Author Affiliations +

Proceedings Volume 8696, Eighteenth International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 86960F (2012) https://doi.org/10.1117/12.2007478
Event: Eighteenth International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2012, Irkutsk, Russian Federation

Abstract

Anomalous decreases in the total ozone (TO) content were observed in March 2011 at Arctic latitudes and in April at midlatitudes of the Northern Hemisphere. In Arctic this was a consequence of extended stratospheric coolings, while at midlatitudes the TO decreases were due to export of ozone depleted air from Arctic regions. Total ozone largely returned to its seasonal behavior in May 2011, however remaining deficient throughout 2011 and being recovered only in the period of resumed wintertime meridional ozone transport from equatorial reservoir. All this led to a decrease in the multiyear (1996-2011) positive TO trend, most appreciably at the Northern Hemisphere Arctic and high latitudes. The M-124 ozonometer measurements indicate that the positive ozone trend decreased from 1.09 DU/yr for the period 1996- 2010 to 0.26 DU/yr for the period 1996-2011 due to the springtime TO decrease over Tomsk in 2011.

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Oleg E. Bazhenov and Aleksey V. Nevzorov "Effect of ozone anomaly during spring of 2011 on long-term (1996-2011) trends of the total ozone content according to ground-based (Tomsk: 56.48°N, 85.05°E) and satellite spectrophotometric measurements", Proc. SPIE 8696, Eighteenth International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 86960F (27 November 2012); https://doi.org/10.1117/12.2007478

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