Atmospheric Circulation

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The Impact of Atmospheric Circulation on Air Temperature Rise in EstoniaIn comparison to the global average, the climate in the Baltic Sea region, including in Estonia, has warmed particularly fast. From synoptic climatology’s point of view, a question can be posed: is this warming caused by changes in the frequency of particular circulation types or has warmer weather started accompanying these types? The main aim of the present study is to analyze the relationship between the increase of air temperature and changes in atmospheric circulation during the period of 1966–2015. Changes in the frequency of circulation types belonging to 12 classifications from the COST733 data set and changes in accompanying air temperature were analyzed. The circulation types were divided into “warm” and “cold” for a given season according to daily temperature anomalies in three Estonian meteorological stations. On the basis of the similar air flow direction, circulation types from different classifications were selected for inter-comparison. Linear trend analysis showed that there were only a few statistically significant (p < 0.05) changes in the frequency of circulation types. The major changes occurred in spring – the frequency of eastern and northeastern flow types decreased, and the frequency of types related to northwestern flow increased. However, the positive temperature anomalies increased for practically all circulation types. Particularly strong warming has taken place in winter “cold” types. In conclusion, the increase of Estonian air temperature dur...

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What is going on in the tropical stratosphere? - Science JournalNASA scientists detected an event in the atmosphere which had never been seen before.

The impact of large scale atmospheric circulation patterns on wind power generation and its potential predictability: A case study over the UKOver recent years there has been an increasing deployment of renewable energy generation technologies, particularly large-scale wind farms. As wind fa…

What is global atmospheric circulation?Global atmospheric circulation is responsible for transfering heat from the Earth's equator to the poles. Atmospheric cells transfer heat from the equator.

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