When the South China Sea high and the Arabia high weaken rapidly and the pentad-mean HIRS-TB12 of both areas are less than 200 W/m2, the South China Sea monsoon and the Arabia and the Bay of Bengal monsoon come to onset respectively.

• 当南海地区、阿拉伯海地区高压迅速减弱,且HIRS-Tb12小于200 W/m2时,分别对应于南海季风、阿拉伯海和盂加拉湾季风爆发。