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Proceedings Paper

Vortex circulation and anomalous meteorological phenomena over the Asian territory of Russia in the context of climate change
Author(s): N. V. Podnebesnykh; S. V. Loginov; E. V. Kharyutkina; E. I. Usova
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Paper Abstract

The features of the formation of anomalous weather phenomena in the conditions of the current climate were studied, trends were determined, and the territory of their maximum changes was revealed. It was shown that at the beginning of the 21st century the number of anomalies increased by 2 times in the middle latitudes of Siberia, which may be due to a change in the type of atmospheric circulation caused by a decrease in the sea ice extent in the Arctic Ocean. Identification of the interannual variability of cyclones and anticyclones characteristics with manual tracking of surface synoptic maps for Siberia showed that during 2012-2017 there was a significant increase in the number of baric formations with their simultaneous intensification, which may be associated with increased weather instability. In addition, the number of positive anomalies of the meridional and zonal wind speed increased. The number of anomalies of specific humidity and air temperature, as well as negative anomalies of the components of wind speed, on the contrary, decreased. Analysis of the correlation coefficients showed that the beginning of the 21st century was characterized by significant changes in the linear relationship between abnormal weather phenomena and the characteristics of baric formations.

Paper Details

Date Published: 18 December 2019
PDF: 7 pages
Proc. SPIE 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 1120883 (18 December 2019); doi: 10.1117/12.2540911
Show Author Affiliations
N. V. Podnebesnykh, Institute of Monitoring of Climatic and Ecological Systems (Russian Federation)
S. V. Loginov, Institute of Monitoring of Climatic and Ecological Systems (Russian Federation)
E. V. Kharyutkina, Institute of Monitoring of Climatic and Ecological Systems (Russian Federation)
E. I. Usova, Institute of Monitoring of Climatic and Ecological Systems (Russian Federation)


Published in SPIE Proceedings Vol. 11208:
25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
Oleg A. Romanovskii; Gennadii G. Matvienko, Editor(s)

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