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<br /> <br />O~0893 <br /> <br />----, <br /> <br />independent variable in the prediction mode, <br /> <br />2. The coefficient of multiple correlation was low and <br /> <br />standard error of estimate was large, <br /> <br />3. Accuracy is limited by regressed input data. <br /> <br />Higher multiple correlation coefficients and smaller <br /> <br />standard errors (item 2, above) may have resulted if a large <br /> <br />scale integrator of the diverse areal precipitation on the <br /> <br />plains had been available. The synthesized variable, plains <br />precipitation, was an unsuccessful attempt to accomplish <br /> <br />this. <br /> <br />While other MLR's were attempted using Van Bremer <br /> <br />Arroyo flow as a predictor (independent) variable, the best <br /> <br />MLR obtained for the 11 year period 1967-19771 is- <br /> <br />Qth ~ 3216 + 1.04 Qtr - 2875 SPb + 4.35 Qvb (A) <br />(0.18) (1197) (2.09) <br /> <br />Where Qth is the annual flow of the purgatoire River at <br />Thatcher, Qtr is the annual flow of the purgatoire at <br /> <br />1 1977 storage adjusted data used since minimal storage <br />occurred late in the water year (August 19, 1977) and <br />project ditches irriqated according to historical practices. <br /> <br />-16- <br />