Why the winter of 2007 was so cold Please explain

We are in a La Niña state this year, that is, the sea surface temperature in the eastern equatorial Pacific is lower than normal, and the impact of this phenomenon on China's climate is very obvious. It's going to have a cold winter, so we can see that this cold winter is coming this year.

Lanina is just one of the reasons, and the other causes of heavy snow are as follows:

Since 2008, the Asian high pressure is very active, and the cold air mass has been formed to affect our country in the south, resulting in a wide range of windy cooling weather, but because the warm air mass in the south this year is also very active, a large number of warm and humid air currents from the Pacific Ocean and the Indian Ocean frequently visit the southern region, when the strong cold air mass from Siberia, Mongolia quickly moves south to the southern region, and meets with the warm and humid air mass, the cold, warm two just combined. Affected by the combination of these two airflows, there has been a lot of rain and snow in recent times, especially in the Yangtze River basin, and the weather has been maintained at low temperatures for a long time. If there is only a strong cold air mass, and there is no large amount of water vapor provided by the warm and humid air mass, there will only be strong winds and cooling weather in the south; If there is only a large amount of water vapor provided by the warm and humid air mass, and no cold air mass is present, there is no catastrophic weather at all.

And when both are in place, disaster strikes.

At the same time, when China was hit hard by the snow disaster, the central United States experienced a sharp cooling of 20 degrees Celsius, and blizzards were infested from time to time (; 10mm of snow suddenly fell in Central Asia, which had not snowed for a century, setting a new record for 100 years without snow in Baghdad. Western Europe 07 summer floods, Britain and France suffered huge losses (2007 summer), since the beginning of winter, the temperature in the northern edge of Russia has hit a new low, once reaching -50 degrees Celsius......La Niña is not over, and the situation is still serious......

I don't think so, on the contrary, the warming climate has caused this winter to be warmer than usual.

And be short, you have a misunderstanding, friend.

The melting of the ice in the North and South Poles causes cold air to emanate, and of course it is cold.

If I were a judge, I would sentence the porcupine to leave, because the hole is owned by the mole, and the porcupine should be criticized and educated.

But now China's law and mu guessing auction officials are estimated to sentence the mole to leave, because they have been "taken care of" by the porcupine, and some judges will sentence them even if they are not cared for by the porcupine, because the level of law enforcement has not yet passed, and the diploma is bought.

Whoever has the title deed, who stays.

d. "The gas temperature has not yet dropped to the level of zero" should be preceded by a statement indicating that it has not been below the level of zero. a. "Take today" should be followed by "the temperature is not low" b. "compared with today" and c. "in today's opinion".

It should be followed by "high or low temperature".