Relation of climate change in the Arctic with the frequency of extreme wind gusts in the south of Western Siberia in the winter period of 2000-2021

E. Yu. Mordvin; A. A. Lagutin

doi:10.1117/12.2603442

15 December 2021 Relation of climate change in the Arctic with the frequency of extreme wind gusts in the south of Western Siberia in the winter period of 2000-2021

E. Yu. Mordvin, A. A. Lagutin

Author Affiliations +

Proceedings Volume 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 119166O (2021) https://doi.org/10.1117/12.2603442
Event: 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2021, Moscow, Russian Federation

Abstract

The analysis results of the interannual variability of extremal wind gust frequency in the South of Western Siberia (49-55 N; 77-88 E) for winter period (December-February) of 2000-2021 are presented. Estimates for V_max were obtained using the widely-accepted method of synoptic meteorology, which is based on wind field data on an isobaric surface of 850 GPa. It was found that the implemented method is more consistent with ground -based observations than the estimate of ERA5 reanalysis. It is found that the rise in wind gusts with V_max < 18 m/s is associated with the decrease of Arctic Ocean ice cover area, which is observed in the autumn period. Winter periods with the high frequency of gusts are characterized by maximum snow reserves, as well as positive aggregative index of Arctic oscillations.

Citation Download Citation

E. Yu. Mordvin and A. A. Lagutin "Relation of climate change in the Arctic with the frequency of extreme wind gusts in the south of Western Siberia in the winter period of 2000-2021", Proc. SPIE 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 119166O (15 December 2021); https://doi.org/10.1117/12.2603442

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