A Numerical Experiment of the Effect of Anomalous Thermal Forcing of Tibetan Plateau Ground Surface on the Formation of Persistent Heavy Rain in Summer over the Yangtze-Huaihe Basin
青藏高原地面热力异常对夏季江淮流域持续暴雨形成作用的数值试验

Based on the atmospheric general circulation model (OSU-AGCM), the relationship between theanomalous thermal forcing of the Tibetan Plateau ground surface and formation of bevy rain in theYangtzd-Huaihe basin is studied by the numerical experiments described in this paper. The results showthat the effect of the anomalous thermal regime of the Tibetan Plateau ground surface on general lation in East Asia and anomalous distribution of cloud amount is one of important reasons of Persistent rainfall in the Yangtze-Huaihe basin during the summer of 1991 similar to the character of the dimension Rossby wave along great circle route, anomalous thermal foring of the Tibetan Plateau can result in distribution of anomalous cloud amount.