On the Problem of Subtropical Anticyclone Regeneration as a Factor of Its Stabilization (Case Study for the Summer of 2010)статья
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Дата последнего поиска статьи во внешних источниках: 19 июля 2013 г.
Аннотация:The detailed investigation of conditions of the durational stabilization of subtropical
anticyclone in the unusual region of the temperate zone is carried out and the reasons for its multiple
regeneration are revealed. Separated are five periods of the subtropical anticyclone regeneration associated
with the entering of active and relatively anticyclones of middle and high latitudes developed at the
rear of cyclonic series into its circulation. All invasions were divided into three types depending on the
trajectories of the movement of active anticyclones: the polar invasion from the north and northwest, the
ultrapolar invasion from the east and northeast, and the western invasion from the Atlantic Ocean and
Baltic Sea. The instability index introduced by V.P. Dymnikov was used for the quantitative estimation
of the blocking process lifetime. It is demonstrated that this index is informative enough and could be
used for the lifetime forecast of concrete quasistationary regimes of atmospheric circulation.