Since the beginning of this year, there have been many events around the world that will affect the climate, such as the melting of Arctic sea ice and the change of snow cover in Europe and Asia, and the La Nina phenomenon that is currently developing is one of them.
Although these climatic phenomena will have an impact on the weather in China, the impact on the temperature change this winter is not very serious, and it is normal for short-term extremely cold weather to occur in individual periods in winter due to some climatic factors.
Climate change in some areas can only be determined by paying close attention to real-time official climate prediction. In addition, most areas have not yet entered winter, so the early climate prediction may not be accurate. However, the winter in 2020 will probably not be the coldest year in 60 years, because with the increase of human activities, global warming has been an inevitable fact in recent decades, and the future climate will mainly be warming.
Extended data:
According to the monitoring, since August, 2020, the equatorial Middle East and Pacific Ocean has entered the La Nina state. According to the forecast of the National Climate Center, La Nina will continue in autumn, and it is expected to reach its peak this winter, that is, a weak to moderate intensity La Nina event will be formed this winter.
The appearance of La Nina is often associated with the overall "cold winter". Since 2000, there have been five La Nina events. According to the five La Nina events, the average temperature in winter in eastern, northeastern and northern Inner Mongolia is lower than normal 1 ~ 2℃, and in some areas it is lower than 2℃.
But what needs to be pointed out in particular is that the impact of each La Nina incident is actually different. Not every winter in La Nina, the average temperature in China is low.
Moreover, under the climate background of global warming, the factors affecting China's winter climate are more complicated, such as the melting of Arctic sea ice and the change of snow in Europe and Asia, which will all affect the variability of East Asian winter monsoon circulation, and then affect the winter climate anomaly in China. Therefore, whether it is cold or warm this winter needs to be comprehensively judged on the basis of scientific analysis.