BasinMod Risk

A Spearman Rank Order Correlation Plot, also called a "tornado plot", illustrates relationships between various model elements. This bar graph is oriented about a vertical axis and displays positive and negative values for the "widths" of the bars. The vertical axis is the variable axis and the horizontal axis is the scale axis. The width of each bar represents the dependence (the magnitude of the correlation coefficient) of the value represented by that bar to the value being plotted. Larger magnitude values are shown at the top of the plot and smaller magnitudes at the bottom, thus giving it the appearance of a tornado. Parameters which are strongly correlated have a higher correlation coefficient.