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Extreme heat in June 2012 and 2016 in Western Siberia in the light of long-term change of the macro-scale atmospheric circulation
Author(s): V. V. Popova
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Paper Abstract

The temperature anomalies in early summer in Western Siberia, including the extreme heat of 2012 and 2016, are studied in terms of variations in large-scale atmospheric circulation (according to Northern Hemisphere Teleconnection Patterns). Estimates obtained using multiple stepwise regression show that the observed temperature changes from the mid-20th century, including long-term change, inter-annual variation and extremes, can be explained by the anomalies of several circulation modes. Macro-scale atmospheric circulation from the late 1980s - early 1990s can be characterized as a weakening of the westerly circulation, which is naturally accompanied by an increase in the frequency of blocking and temperature anomalies. The extreme manifestation of this мacro-scale circulation was catastrophic heat in Western Siberia in 2012 and 2016.

Paper Details

Date Published: 13 December 2018
PDF: 4 pages
Proc. SPIE 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 108338N (13 December 2018); doi: 10.1117/12.2504610
Show Author Affiliations
V. V. Popova, Institute of Geography RAS (Russian Federation)

Published in SPIE Proceedings Vol. 10833:
24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
Gennadii G. Matvienko; Oleg A. Romanovskii, Editor(s)

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