What effect does El Nino have on the climate?

El Nino has a serious impact on the climate: first, the number of typhoons has decreased. After the El Ni? o phenomenon, the number of tropical storms (typhoons) in the northwest Pacific and the number of landings in China's coastal areas are less than normal.

Secondly, the northern part of China is prone to high temperature and drought in summer. Usually in El Nino, the summer monsoon in China is weak, and the monsoon rain belt is south, which is located in the middle of China or south of the Yangtze River. Drought and high temperature often occur in summer in northern China. 1997 After the strong El Ni? o, the drought and high temperature in northern China were very obvious.

Third, southern China is prone to low temperatures and floods. One year after El Nino, the southern part of China, including the Yangtze River basin and the south of the Yangtze River, is prone to floods. The once-in-a-century floods in China, such as 193 1, 1954, 1998, all occurred one year after El Nino ... El Nino was one of the important factors that affected the 1998 catastrophic floods in China. Finally, in the winter after El Nino, the northern part of China is prone to warm winters.

According to the meteorological data in recent 50 years, after El Nino, there is a high probability of high temperature in winter in China, and summer precipitation in southern China tends to be more in the following year, while large-scale drought often occurs in northern China.