An estimation method for the Changjiang discharge from precipitation anomalies is proposed on the basis of multiple regression analysis. The estimated discharge anomaly shows a significant correlation with the observed one (with a multiple correlation coefficient R of +0.45). The root mean square between the estimated and observed discharge anomalies is 5968.6 m3s-1. The partial regression coefficients show a relatively larger contribution to the discharge anomaly from precipitations in the middle region of Changjiang.
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