2.Further dynamic analysis reveals the dynamic mechanism for the late occurrence of ASM precipitation in Indianmonsoon area and the abrupt occurrence of Indian summer monsoon onset.
4.Notice the tie of the ENSO and Indianmonsoon, we introduce two ways by which the ENSO affects the East Asian summer monsoon. They are a direct way: ENSO → PJ Pattern → East Asian summer monsoon,and a selective way:ENSO → south Asian monsoon → IEA pattern → East Asian summer monsoon.
5.The Indianmonsoon initiated in late Miocene time, caused by the uplift of the Himalayas, and the increased precipitation has accelerated the headward erosion of the Brahmaputra River.
6.both the northward moving to 25°N of the ridge of South Asia high and the onset of Indianmonsoon the end of stable Calcutta westerly obviously foretell the beginning of Jianghuai mei yu.
