Is it normal for the Arctic Circle to measure a high temperature of 38 ° C?

According to the television station "Russia Today", on June 20 local time, the Siberian Russian city of Vrhoyansk, which is located in the Arctic Circle, measured a high temperature of 38 degrees Celsius, breaking the record for highest temperature from the record in the Arctic Circle.

As soon as the news came out, people were disturbed: was the kind of flooded End of the World scene depicted in the 2012 disaster film approaching?

Dai Yunwei, a senior engineer at the Central Meteorological Observatory of the China Meteorological Administration, unequivocally replied: "The high temperature recorded at 38 degrees Celsius in Verkhoyansk is only incidental and not normal. And because it is not normal, the ecology of the arctic region will not change suddenly. This is global climate. Local extreme weather phenomenon in the context of warming. "

In other words, climate change is a human problem and an international problem, and its participants can only be national and international organizations.

Global warming has become a topic of daily discussion among people after decades of heated media discussion. But climate change is actually a large-space, long-term, multidimensional supermacro problem that is not directly related to a certain region or even some countries.

Humanity in general has recognized the globality, importance and severity of climate problems, but if we want to solve climate problems and their local high temperatures, extreme disasters and even ecological crises in a short time, low dimension and small scale, we can only have hope.

High latitudes are more sensitive to climate change.

The city of Vrhoyansk is about 4,700 kilometers northeast of Moscow. There are around 1,300 residents here, and it takes about 2 days to travel from Moscow to China. What does the high temperature of 38 ℃ really mean in such a sparsely populated city?

Dai Yunwei believes that this should be combined with history and reality.

He explained: From a historical point of view, the Guinness Book of Records once certified that the most extreme temperature difference has occurred in the city of Verkhoyansk. The lowest local temperature has been measured at an extremely low temperature of minus 68 ° C, but the highest temperature is also 37 ° C, and the relative temperature difference is 105. ℃. Thus, it seems that the maximum temperature of 37 ℃ to 38 ℃ is not a big deal; on the contrary, if the low temperature of minus 69 ℃ is measured again this winter, it does not mean a qualitative change. "Because this 38 ° C is only an occasional phenomenon, it has no linear deduction and a normal nature. It is safe to say that there is little chance of a progressive evolution of 38 ° C this year, 39 ° C next year, and 41 ° C Next year".

Dai Yunwei also emphasized that, under the general trend of global warming, sensitive areas, such as high latitudes, are significantly affected more than low ones. The city of Verkhoyansk, located in the Arctic Circle, is a typical example of the impact.

Urgent need for more comprehensive surveillance and investigation

Although the local temperature will not increase year after year, other countries in the Arctic Circle have also measured historically extreme high temperatures in recent years. The arctic area has a large amount of melting ice, permafrost is melting, and the frequency of forest fires has increased. These far-reaching effects of natural phenomena on humans are currently under careful surveillance and investigation.

Compared to astronomical units calculated in light years, climate change requires at least a comprehensive comparison of data over a million years. Dai Yunwei made a vivid analogy: "For example, the security of a certain area has deteriorated, we can only predict that a large number of cases will occur in this area, but we cannot accurately predict the time and date of a certain year, month and day, and in a specific direction.