Why is the world s heavy snow so bad this year?

Relationship between climate anomalies and La Niña in 2008.

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.

La Niña is also known as the anti-El Niño phenomenon.

Heavy snowstorms in many places have caused snow disasters, which has made many people doubt the term global warming. In fact, in my personal opinion, this is also an important manifestation of global warming. The change of climate makes the frequency of extreme weather in life slowly increase, and its severity is also rising.

For such a phenomenon, individuals have the following two views.

Global warming is the responsibility of many meteorological experts, and he wants to use this kind of ** to attract people's attention and start environmental protection projects. As the climate warms, snow and ice melt, and sea levels rise as a result of the melting of snow and ice, which ultimately affects the global climate.

Heavy rains and floods in the summer and heavy snowstorms in the winter are, in my personal opinion, the effects of climate warming. As the climate warms, there is more water vapor evaporating in the air, so that the summer rainfall will also increase, so that many cities have floods.

Winters are supposed to be dry and cold, and when the air gets humid in winter, the cooler temperatures are more likely to cause heavy snowfall.

Such a situation is not only in our country, but also in many countries around the world, which are also suffering from the disasters and losses brought about by climate change. The earth is our home and the land we live in; In the event of climate change, life on the planet will be directly affected.

Heavy rains, floods and heavy snowstorms have brought economic losses and loss of life to the localities involved. The emergence of these disasters should arouse our attention, and all mankind should work together to defend the earth and slow down the continuous deterioration of the environment.

Human beings have existed for a long time, but after the industrial revolution, the transformation of the earth's environment is unprecedented, and this time is very short. Now nature is venting its frustration in its own way. If we are not able to change positively, this situation may become more frequent in the future.

The global temperature is still burning and continuing to warm, and carbon dioxide emissions should be reduced to control global warming. The blizzard is just a small episode, after which the temperature will return to the source of the stool.

This year's global temperature is getting colder, and the spring is buried. This year will be the coldest winter in a decade, with many places around the world experiencing heavy snowfall at unsuitable times.

Global warming. Global warming will lead to many extreme disasters, so we need to protect the environment.

The global climate has warmed, and the weather conditions this year are not very normal, and there will always be different weather changes.

World Meteorological Organization spokesman Nalis told ** in Geneva on the 4th that the current cold weather sweeping Europe is caused by the Siberian high-pressure air mass.

Nallis said the Siberian high-pressure air mass is blocking the westward movement of warm air, causing temperatures to plummet in Europe. In the past few days, cold air from the north and warm and humid air currents from the Mediterranean Sea have converged over southeastern Europe, bringing heavy snowfall to the region.

"If we look back at the winter of 2009-2010, we see that the cold spell came earlier and lasted longer, starting in December 2009 and continuing for most of January and February 2010," he said. ”

For the whole of December last year and for most of January, temperatures were higher than usual in Europe as a whole, "so we don't think this cold spell will set a low record," Nallis said. Of course, there may be record low temperatures in some areas, but the exact situation is still to be confirmed after the data are collected. ”

Some experts at the World Meteorological Organization believe that the cold weather in Europe and other regions will continue for several days, but how long it will last depends on when the blocking effect of the high-pressure air mass ends.

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First of all, in winter our country is controlled by the Siberian high pressure. Northwesterly winds prevailed, and cold snaps came from Siberia and Mongolia. The winter monsoon is characterized by cold and dryness;

Secondly, the cold snap from Siberia and Mongolia was much stronger than usual, with a slightly longer stagnation time and a larger area, resulting in widespread snowfall and cooling. This is also the main reason why this winter is colder than usual;

Finally, due to the differences in geographical location, the snowfall and cooling range vary from place to place. We have topographical reasons here. The cold snap does not easily move south, staying here. In fact, it also includes environmental reasons.

It's been more than 50 years (the last time it was '54) and there hasn't been snow as big as this year, and it's so widespread.

It lasts so long.

In some areas, the snow reached more than 20 centimeters.

Snow disasters have caused traffic accidents.

Many highways, railways, and flights across the country were closed.

It seriously interferes with people's work, travel and daily life.

Meteorological experts say the snow will not stop until after the Chinese New Year.

In the final analysis, it is caused by the wanton destruction of the environment by human beings.

In the past, the greenhouse effect led to many years of warm winters.

The climate is now moving towards two extremes.

Maybe next year it will be even bigger.

I've heard that it's called Zarniño, and it's a sudden increase in the temperature of the sea, which causes the global temperature to drop, but it often doesn't happen until the second year of El Niño, so it's that the temperature is so low this year.