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Proceedings Paper

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
Author(s): Oleg E. Bazhenov; Aleksey V. Nevzorov
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Paper 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.

Paper Details

Date Published: 27 November 2012
PDF: 4 pages
Proc. SPIE 8696, Eighteenth International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 86960F (27 November 2012); doi: 10.1117/12.2007478
Show Author Affiliations
Oleg E. Bazhenov, V.E. Zuev Institute of Atmospheric Optics (Russian Federation)
Aleksey V. Nevzorov, V.E. Zuev Institute of Atmospheric Optics (Russian Federation)


Published in SPIE Proceedings Vol. 8696:
Eighteenth International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
Oleg A. Romanovskii, Editor(s)

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