Slide 7 of 20

Figure 1.3.a. Time series of the precipitable water results of 100 SCM runs (black lines) versus observational data (blue line) for 18 July-3 August 1995 ARM SGP IOP are shown here. Each of the SCM runs was initialized with a temperature sounding that was perturbed slightly, at random; all other initialization and prescription data were identical for each run. The SCM was driven using horizontal advective forcing ("vertical flux mode").