摘要 : Impacts of El Nino on the following summer East Asian precipitation are dependent on its peak-time characteristics. Three types are identified and denoted as eastern Pacific (EP), mixed-type Pacific (MP), and central Pacific (CP) ... 展开 Impacts of El Nino on the following summer East Asian precipitation are dependent on its peak-time characteristics. Three types are identified and denoted as eastern Pacific (EP), mixed-type Pacific (MP), and central Pacific (CP) El Nino. For EP, excessive rainfall occurs in the Yangtze River valley, in relation to an anomalous anticyclone over the western tropical Pacific. For MP, a dipolar precipitation with anomalous wet conditions in northern China and dry conditions in east-central China is mainly due to an anomalous cyclone over Northeast Asia and a weak anticyclone over the Sea of Japan. For the case of CP El Nino, wetness along the Yangtze-Huaihe River valley and dryness in Southeast China are ascribed to an anomalous cyclone in Northeast China and a strong anticyclone over the western tropical Pacific. It is also revealed that the precipitation anomalies are fundamentally caused by different intermediate sea surface temperature (SST) anomalies from other basins while El Nino decays in the following summer. In the case of EP El Nino, the joint action from warm SST in the tropical Indian Ocean, the Nino-1.2 region, and the North Atlantic is responsible for the delayed effect of El Nino. For MP, the main delayed effect comes from warm SST in the northeast subtropical Pacific, developing La Nina, and cold SST in the southern tropical Atlantic. Finally, CP El Nino exerts its delayed influence through warm SST in the northern tropical Atlantic. 收起