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18 December 2019 Changes in cyclone and anti-cyclone activity over the Lake Baikal basin
M. G. Akperov, I. I. Mokhov, M. A. Dembitskaya, M. R. Parfenova
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Proceedings Volume 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 1120884 (2019) https://doi.org/10.1117/12.2540914
Event: XXV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2019, Novosibirsk, Russian Federation
Abstract
Based on the NCEP / NCAR reanalysis data, the characteristics of seasonal variations in cyclonic and anticyclonic activity over the Baikal Basin in 1980–2016 were analyzed. The estimates for the latitudinal dependence of cyclonic and anticyclonic activity in the atmosphere for the longitude belt 98 °E — 112 °E (corresponding to the longitudinal extent of the Baikal Basin) are obtained. Comparison of the two periods - the end of the 20th century (from 1980 till 1994 — period I) and the beginning of the 21st century (from 2002 till 2016 — period II) - revealed a decrease in cyclonic and an increase in anticyclonic activity over the Baikal Basin in summer. At the same time, the intensification of winter cyclonic activity in middle latitudes and anticyclonic activity in higher latitudes was noted.
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M. G. Akperov, I. I. Mokhov, M. A. Dembitskaya, and M. R. Parfenova "Changes in cyclone and anti-cyclone activity over the Lake Baikal basin", Proc. SPIE 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 1120884 (18 December 2019); https://doi.org/10.1117/12.2540914
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KEYWORDS
Climatology
Atmospheric physics
Climate change
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