ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Medium-range Forecast of Areal Precipitation in Sanxia Areas by Using the BP Canonical Correlation Analysis Model
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Abstract:
The 5-day average of the 500hPa height field as predictors and the pentad regional precipitation of 4 areas in sanxia,China as predictands were used to build the BP Canonical Correlation Analysis(BP-CCA)model.The forecast skills of BP-CCA for the precipitation of 4 areas were estimated by using a cross-validation technique.The forecast test shows that the predictive skills of BP-CCA for areal precipitation forecast in sanxia areas are good enough for the operational medium range weather forecast and the results are valuable for reference to forecasters.
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