I.C. STÂNGĂ
ABSTRACT. – Use of logarithmic function for drought severity assessment. Due to the multiplicative and cumulative effect of various risk events, the use of logarithmic function can provide satisfactory results in the analysis of risks. Based on the monthly values of climatic parameters from fourteen stations in the eastern part of Romania (1961-2006), the author uses the logarithmic function to evaluate and interpret the severity of droughts. With this function, deficient rainfall periods are diagnosed and classified according to three levels (moderate, high and extreme droughts). On these bases, the mathematical modeling allows to assess and evaluate the susceptibility to drought phenomena and the degree of continentalism in the eastern part of Romania.
Keywords: rainfall, logarithm, drought, continentalism.