Through the EOF-CCA method,the tropical Pacific Ocean surface temperature in May is used as a predictor to predict summer precipitation in eastern China.Firstly,it performs CCA analysis on the first 15 EOF modes of the tropical Pacific Ocean surface temperature in May and summer precipitation in eastern China,and cross-checks the prediction models built with different numbers of CCA modalities.Then,it evaluates the built predictive model based on technique scoring for cross-checking.The results show that the sea surface temperature of the tropical Pacific is closely connected to the summer precipitation in eastern China in May,the first 7 CCA modes are better than the 15 CCA modes for the prediction of summer precipitation in eastern China,the prediction results of the first seven CCA modes are better for the Yangtze River Basin,and the correlation coefficient between the predicted values and observed values of the average summer rainfall in the Yangtze River Basin from 1966 to 2015 is 0.41.
eastern Chinasummer precipitation forecastEOF-CCAcross test
国家科技期刊平台
NSTL
维普
万方数据
