3.1 Time Graph of Different Meteorological Variables3.1.1 Annotations to Enhance the Time Graph3.2 Time Series of Variables with the Same Scale3.2.1 Aspect Ratio and Rate of Change3.2.2 The Horizon Graph3.2.3 Time Graph of the Differences between a Time Series and a Reference3.2.4 Interaction with gridSVG3.3 Stacked Graphs3.3.1 Panel and Prepanel Functions to Implement the ThemeRiver with xyplotFigure 3.1Figure 3.2Figure 3.3Figure 3.4Figure 3.5Figure 3.6Figure 3.7Figure 3.8Figure 3.9Figure 3.10Figure 3.11Figure 3.12Figure 3.13Figure 3.14