ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa


Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2009, Issue 6, Vol. 2, pp. 95-103

Solar flare activity and atmospheric ozone variations

К.Н. Вишератин , А.В. Шилкин 
ГУ "НПО "Тайфун", 249030 г. Обнинск, ул. Победы, 4
The analysis of the total ozone (TO) temporal and spatial variations during the periods of the most
powerful solar flares was carried out. The daily mean TOMS total ozone data from 1979 to 2005 were
used. The MgII index and energetic particle flux data were used as solar flare indices. The analysis was
carried out for each point from the TOMS data on the 1 by 1.25 grid, as well as for zonal mean TO time
series. The method of superimposed epochs was used to construct global maps of total ozone
distribution, characterizing ozone changes due to flare events. The results obtained were estimated by the
Monte-Carlo method. The results of the analysis have shown the complexity of spatial and temporal
variations of total ozone after flare events. The TO and solar flare activity correlative relations are more
pronounced for zonal mean data and for middle and high latitudes.
Keywords: total ozone, solar activity, solar flare, ultraviolet emission, MgII index, the method of superimposed epochs, solar proton event
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