Influenza delle caratteristiche geografiche e topografiche sulla distribuzione delle piogge medie. Applicazione ad un'area della Sicilia orientale

The possibility of assessing the influence of certain physical characteristics on the distribution of rainfall in a large area of eastern Sicily was tested. The multiple regression analysis (stepwise method) was used for selecting the "best" regression equation between monthly and yearly mean rainfall and some territorial characteristics. Multiple regression equations were calculated both for the whole area of study and for three homogeneous subareas. The values of correlation coefficients, mean square errors and differences between observed and computed values were calculated. Results indicate that reasonable accuracy may be achieved through the use oft the proposed regression relations, although less accurate if compared to statistical methods.