ANALYSIS OF WATER-LEVEL--LAKE JACKSON


0.


(a)



Apr. 27, 1950 Apr. 28, 1950


0.5
 (d)



 May 30,1952 My 31,1952
 May 30, 1952 May 31, 1952


Dec. 4, 1964 Dec.5, 1964


 Nov. 15, 1961 Nov. 16,1961

 Figure 8.-Water-level rise of Lake Jackson during selected storm periods.



complete and accurate were included. These months are identified
by bar graphs in figure 9.
 Figures 10 and 11 show the accumulation of all individual rises
during a month compared to the average of monthly rainfall at
Quincy, Monticello, and Tallahassee.
 The plot of points in figure 10 indicates that for monthly rain-
fall of less than about 0.6 foot the rise of the lake level is less
than the rainfall while with greater rainfall the rise of the lake
level exceeds the rainfall. Part of the scatter of the plot can be
attributed to the fact that the measured rainfall was not always
representative of rainfall on Lake Jackson. Scatter due to this
cause, however, should tend to be centered about the equal-value
line.


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O.