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4-26 <br />• using flow data from the White River. The White River near <br />Meeker, Colorado was chosen for the analysis because it <br />is the nearest river or stream in the region of which long- <br />term (75 years) records are obtainable. <br />Correlation Analysis <br />A linear regression (correlation) analysis for East Salt <br />Creek and White River flows indicated an association between <br />flows, but not a particularly close association. The <br />correlation coefficient was 0.67. Annual flow data for the <br />two streams is presented in Table 4.5-1. The coefficient <br />of determination r2, a measure of the degree to which the <br />variance is explained by the linear regression, indicates <br />• that 45 percent of the total variation in flow can be <br />explained by a linear relationship between East Salt Creek and <br />White River flows. The coefficient of variation for East <br />Salt Creek shows that the annual discharge for any given year <br />during the period of record fluctuates widely, i.e., around <br />100 percent from the mean annual discharge for that period, <br />while White River flows vary only about 28 percent from the <br />mean discharge for the same period. The flow variability <br />of an ephemeral stream, like Munger Creek, should be even <br />greater than that for East Salt Creek. <br />The association between East Salt Creek and white River flows <br />can be considered strong enough so that the relative wetness <br />• <br />