In ENSO year, the Subtropical High is strong with the deepening of trough over south of Baikal Lake while in NO-ENSO year, the Subtropical High is weak with the high incidence of typhoons over northwest of Pacific and South China Sea.

• 多雨年发生在ENSO年和NO-ENSO年大气环流形式的不同主要表现在：ENSO年副热带高压较强，贝加尔湖地区南部低压槽容易加深； 在NO-ENSO年副热带高压强度减弱，在西北太平洋和南海地区多热带系统活动。