Utility of Graphic and Analytical Representation of Simple Correlation, Linear and Nonlinear in Hydro-climatic Data Analysis

Through the appearance of analysis models was possible to simplify the graphical representation of the various processes of the hydrology, and also from the climatologic domain. Current scientific research imposed the deepening of operating mechanism and the way of manifestation of these hydrological and climate systems, because any change in their evolution affects the components and relations between them. Correlations generally, express the relations between two or more variables, being such as explanatory and explained, more precisely some are independent, others dependent. Correlations are particularly useful in hydro-climatic research, because they can check and complete statistical data series and determine new hydrological parameters.