THE RISK OF BLIZZARD APPEARING IN BÂRLAD PLATEAU DURING 1961–2010
MIHĂIŢĂ-CRISTINEL HUSTIU
Abstract – The risk of blizzard appearing in Bârlad Plateau during 1961 – 2010. The wind has the highest monthly average speeds regardless of direction in the cold season, including winter (XII-II), when the thermo - baric contrast is the largest due to alternating of cold and heat waves, as well and in the spring months March-April, when the air movement direction is changing from east to west. In the past two decades amid global climate change, it appears that the transition from winter to spring is faster as a result of higher dynamic that has atmosphere has from the end of February till early March. On the other hand, the frequency of wind classes with high speeds fell sharply in January, so we can say that violent blizzards occurred less frequently in the recent decades to the seventh decade of the 20th century.
Key words: non-periodic variability, barometric centers, blizzard coupling
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