China News Agency, Beijing, November 7th (Reporter Chen Su) In the public's impression, La Niña is usually associated with cold winter.

The World Meteorological Organization predicts that La Niña is still going on and will be the first "triple" La Niña this century.

Affected by this, will China experience a cold winter this year?

The China Meteorological Administration held a press conference on the 7th to forecast the climate trend this winter.

　　Xiao Chan, deputy director of the National Climate Center, said that La Niña events refer to cold water events with abnormally cold sea surface temperatures in the equatorial central and eastern Pacific Oceans.

In terms of business, the moving average of the SST anomaly index in the monitoring area (Nino3.4 area) is lower than -0.5°C for more than five consecutive months as the criterion.

The latest monitoring shows that the La Niña event in the equatorial and central and eastern Pacific Ocean has continued since October, and this La Niña event is expected to last until the winter of 2022/2023.

　　He said that since the equatorial central and eastern Pacific Ocean rapidly turned colder in the spring of 2020, in the following three years, from the summer of 2020 to the spring of 2021, the autumn of 2021 to the early summer of 2022 and the autumn of 2022, it has developed again three times. La Niña, hence the name "triple" La Niña event.

　　"It should be said that the La Niña event is only one of the underlying forcing factors that affect the climate of China in autumn and winter. There is no need to 'talk about the color change of La Niña'." Xiao Chan said that in addition to La Niña, China's winter climate is also affected by Arctic sea ice, Eurasian The influence of factors such as snow cover, and the internal natural variability of the atmospheric system also play an important role.

　　The China Meteorological Administration predicted on the same day that in November, the average temperature in central and eastern China will be close to the same period of the year to slightly higher.

　　Looking forward to the whole winter, Xiao Chan said that after careful research and judgment, it is expected that the intensity of cold air affecting China this winter will generally be weak, except for eastern and western Inner Mongolia, northern northeast, most of southern China, southwestern southeastern, and central and eastern Northwest China. In addition to the low temperature, the temperature in the rest of the country is close to the same period of the year or high.

"Of course, we will also strengthen research and judgment on the uncertainty of the evolution of the climate system, and continue to provide rolling monitoring forecast opinions and service information in the future."

　　The Central Meteorological Observatory predicts that there will be 5 cold air processes affecting China in November.

Xiao Chan said that as the temperature drops, it is necessary to prevent the adverse impact of cold air on energy supply.

In November, special attention should be paid to the coal and natural gas supply in Heilongjiang, Jilin, Liaoning, northeastern Inner Mongolia, Gansu, Xinjiang, and western Tibet, which may be caused by the strong cooling or periodic low temperature in most of the northern regions. In view of the adverse effects of increased demand, power generation equipment and transmission lines, it is recommended to make energy reserves and overhaul of power transportation equipment in advance, and formulate emergency support plans.

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