!! This is the link of paper:https://journals.ametsoc.org/doi/pdf/10.1175/2008WAF2222171.1
Topic: A New Scheme for Improving the Seasonal Prediction of Summer Precipitation Anomalies
Auther: Huijun Wang and Ke Fan
Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
Predictedprecipitationanomaly = C1(pattern of the most similar year’s observed precipitation anomaly) - C2(pattern of the most dissimilar year’s observed precipitation anomaly) + C3(modeloutputprecipitationanomaly)k1/k2. - k1 and k2 are the standard deviations of the observed and the simulated interannual variabilities of precipitation