ANNUAL VARIATION OF AVERAGE MONTHLY PRECIPITATION AMOUNTS AT THE BOTO ANI METEOROLOGICAL STATION

The atmospheric precipitations present a great variability and discontinuity in space and time, their distribution and regimen depending, equally,on the dynamic, physical-geographical and radiative factors. In Romania, precipitations generally have a continental character, with a maximum in June and minimum in January – February. However, from the analysis of monthly multiannual values of the precipitations quantities registered in the period 1962-2009 at the Botosani station, as a consequence of the intensification of the cyclonic activities in the months of July of the last 12 years, but also of the intensification of the thermal convection in this month, results that the highest value is registered in July(94,2 mm). The quantitative difference between this month and June is notable (9,8mm). On the other hand, the urbanization processes and human activities determined, in the last years, an increase of the number of condensation nuclei and an increase of precipitations frequency