PLUVIAL HAZARDS IN OLTENIA IN MAY 2012 I.
MARINICĂ, ANDREEA FLORIANA MARINICĂ
ABSTRACT.- Pluvial hazards in Oltenia in may 2012.The paper analyses the situations of abundant precipitation, with torrential rains and severe weather cooling in May 2012. May came after a very rainy April, and these rainfalls caused an excess of humidity in soil, damages of communication networks and rapid floods. Weather cooling in some intervals of time has led to the stagnation of plants’ vegetative processes and the late appearance of vegetables and fruits on the market. The diseases and pests favoured by the excessively moist weather have caused series of damages in vegetables and fruits crops. May 2012 has been one of the rainiest months of the last decade, and in Polovragi a monthly quantity of 350 l/m2 was registered, constituting an absolute pluviometric record of May for this meteorological station. Air temperature had a decreasing trend during the entire month, which constitutes an anomaly for May. The monthly maximum thermal values were registered on May 12, 2012, precisely in the previous day of the beginning of rainfalls, and the minimum thermal values were registered on de May 29, 2012. The quantities of precipitations registered in May 2012 were comprised between 73.3 l/m2 in Caracal and 350.0 l/m2 in Polovragi, which compared to the multiannual monthly average quantities, calculated in percentages for the interval 1901-1990 show values comprised between -6.2% in Voineasa and 236.9% in Polovragi. Therefore the paper analyses an important climate oscillation in Oltenia in May. The analysis of the climatic conditions in the south-west of Romania in May 2012 is a continuation of some extended studies on climate variability (Bogdan and Niculescu, 1999, Marinică, 2006). The paper is useful to specialists, doctoral candidates and master graduates and to all people interested in the climate’s evolution.
Key words: Mediterranean Cyclones, torrential rains, excedentary precipitations, thermal and hydric stress.
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