The Analysis of Anomalous Climate of Eastern China in Summer of 2005——The Verification of Seasonal Climate Predictions of Institute of Atmospheric Physics

The ensemble seasonal climate prediction for the rainfall of 2005 summer and its verification is compared.The formation of the summer rainfall belts and the precipitation deficit regions in eastern China is analyzed versus the distribution of atmospheric circulation in Asia.The poor prediction of anomalous activities of the subtropical high over the western Pacific(SHWP) in summer is the main reason for the discrepancy.The northward moving of the SHWP is related to propagation of stationary Rossby waves along the Asian jet and the energy propagation processes of stationary Rossby wave lead to the high effect weather in various parts of Asia in summer of 2005.