Changes in the synoptic regime of Tomsk over the period of 1993-2016

Tatyana K. Sklyadneva; Tatyana M. Rasskazchikova; Viktoriya Arshinova

doi:10.1117/12.2503951

13 December 2018 Changes in the synoptic regime of Tomsk over the period of 1993-2016

Tatyana K. Sklyadneva, Tatyana M. Rasskazchikova, Viktoriya Arshinova

Proceedings Volume 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 108337G (2018) https://doi.org/10.1117/12.2503951
Event: XXIV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2018, Tomsk, Russian Federation

Abstract

Here, we present the results of analysis of interannual variability and frequency of occurrence of atmospheric pressure systems and air masses of different types observed in the Tomsk region over the period from 1993 to 2016. The following types of APS were analyzed: cyclones, anticyclones, troughs, ridges, low-gradient baric fields, and contrast zones (areas of high-gradient baric filed between Zn and Azn). It is shown that the difference in the frequency of cyclones and anticyclones has significantly decreased over the past decade in the Tomsk region. In 2015 - 2016, their repeatability was almost the same. There is a tendency to decrease in the frequency of Arctic air mass occurrence and increase in subtropical air masses. During the past decade, tropical air masses have become to be observed more often in our region, especially in the spring.

Citation Download Citation

Tatyana K. Sklyadneva, Tatyana M. Rasskazchikova, and Viktoriya Arshinova "Changes in the synoptic regime of Tomsk over the period of 1993-2016", Proc. SPIE 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 108337G (13 December 2018); https://doi.org/10.1117/12.2503951

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