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<br />00' 5 n... <br />. ,".'""\. <br />1 1) U <br /> <br />Plotting Occurrences. Another approach that is used to view shortage and surplus data is to <br />plot the number of occurrences, or the percentage of occurrences that occurred per year. As <br />shown in Figure 16, the lower line represents the number of occurrences of shortage out of <br />10 possible traces that occurred for each year (code=S or CAP<=IOOO). The upper curve is the <br />conversion from occurrence to the percentage or probability that number of occurrences <br />represents of the 10 traces. Where probability would equal 100 * occurrences /10. As shown in <br />Figure 17, when applied for to 90 trace run, the trend and the effects of different operating <br />concepts can be seen. <br /> <br />These same graphical techniques can be applied to other data, such as flood control releases <br />producing Flood Release Probability graphs as shown in Figure 18, and Average Flood Release <br />Volume graphs as shown in Figure 19. <br /> <br />24 <br />