【Abstract】 Four typical East Asia Summer Monsoon Indexes (EASMI) are enumerated and comparted here.Results show that they are good at reflecting the abnormality of rainfall and temperature of China as lower level wind fields of East Asia in summer,and the SCHI is the best comparatively.Further discussion indicates that high temperature will be seen almost all over China and there will be flood in north/south China in summer,but drought in Changjiang-Huaihe Valley in case that summer monsoon is strong,and vice verse.更多还原