Numerical Study of the Arctic Oscillation Impact on the Atmospheric Blocking Characteristics

Atmospheric blocking is the most common cause of extreme weather conditions. In the present paper, model data are used to investigate the relationship between the Arctic Oscillation index and the characteristics of atmospheric blocking. The dependence of the duration and intensity of blocking on the...

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Veröffentlicht in:	Russian meteorology and hydrology 2023-11, Vol.48 (11), p.946-953
Hauptverfasser:	Borovko, I. V., Gradov, V. S., Platov, G. A., Krupchatnikov, V. N.
Format:	Artikel
Sprache:	eng
Schlagworte:	Arctic Oscillation Atmospheric blocking Atmospheric Sciences Earth and Environmental Science Earth Sciences Enstrophy Extreme weather Meteorology Weather Weather conditions
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container_title	Russian meteorology and hydrology
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creator	Borovko, I. V. Gradov, V. S. Platov, G. A. Krupchatnikov, V. N.
description	Atmospheric blocking is the most common cause of extreme weather conditions. In the present paper, model data are used to investigate the relationship between the Arctic Oscillation index and the characteristics of atmospheric blocking. The dependence of the duration and intensity of blocking on the index (or phase) of the principal mode during its initial period is estimated. A typical blocking episode is considered, and it is shown that increased values of integral regional enstrophy can be an indicator of the change in the dynamic regime.
doi_str_mv	10.3103/S1068373923110031
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subjects	Arctic Oscillation Atmospheric blocking Atmospheric Sciences Earth and Environmental Science Earth Sciences Enstrophy Extreme weather Meteorology Weather Weather conditions
title	Numerical Study of the Arctic Oscillation Impact on the Atmospheric Blocking Characteristics
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