Variations of total ozone in the atmosphere over the territory of Ukraine

1Mogylchak, VY, 2Milinevsky, GP
1Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
2Main Astronomical Observatory of the National Academy of Sciences of Ukraine, Kyiv, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
Space Science and Technology 2017, 23 ;(2):41-47
Section: Space and Atmospheric Physics
Publication Language: Russian
In the paper, we analyze the spatial and temporal distribution of total ozone column (TOC) over the territory of Ukraine (43.5 — 52.2°N, 22 — 42°E). The presence of short- and long-term total ozone changes was detected based on satellite observations, conducted in the last decades (1979-2014) by spectrometers TOMS and OMI. It was noted that for short-term (seasonal) changes, the maximum of TOC falls on the spring months (March — April), the minimum one has been observed in the autumn (October — November). Long-term changes of TOC correspond to its decrease from the 1970s to the 1990s, but the rate of decline slowed down at the beginning of the 21st century. Heterogeneity of TOC spatial distribution with latitude was detected, that means TOC reduction in the direction from north to south of Ukraine.
Keywords: long-term changes, the satellite observation spectrometers, оzone variations
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