However, your memory of the scorching heat has not subsided yet, and the cold winter is coming! Recently, the World Meteorological Organization reminded: The rare triple La Nina is likely to appear, and humans need to prepare for the cold winter.

This year's hot summer is probably unforgettable for a long time. However, your memory of the scorching heat may not fade yet, and the cold winter is coming!

Recently, World Meteorological Organization prompts: The rare triple La Nina is likely to appear, and humans need to prepare for the cold winter.

We know that the so-called La Niña phenomenon is exactly the opposite of El Niño phenomenon , so it is also called anti-El Niño phenomenon. La Nina will also bring about global climate chaos, mainly manifested by abnormal drop in water temperatures in the Eastern Pacific. The climate impact of the La Nina phenomenon on the world is huge. For my country, it will be manifested as hot summer and cold winter, and even drought in the south and flood in the north.

Generally speaking, the La Niña phenomenon occurs alternately with the El Niño phenomenon, but it occurs much less frequently than El Niño. From the start of the meteorological records in 1950 to the present, most of them are El Nino year .

You may ask: Why do you appear alternately but the number is different? The answer is simple, because neither El Nino nor La Nina must alternate year by year, sometimes more than one year. Taking the La Nina phenomenon as an example, it is normal to occur for two consecutive years. Previous statistics show that if the La Nina phenomenon just comes in a certain year, the probability of the La Nina phenomenon happening again the next year is as high as 70%.

Even so, it is very rare for the three consecutive years to occur. This is the triple La Nina phenomenon that has been discussed more recently, or to put it accurately, it is the three consecutive years of La Nina .

From 1950 to today, in the past 72 years, there have only been two triple La Nina phenomena, namely 1973-1976, and 1998-2001. In some statistics, 1954-1957 or 1983-1986 will also be counted. Regardless, it seems that the triple La Nina phenomenon seems rare.

But I have a little idea about this so-called "rare". After all, every triple La Nina phenomenon lasts for 3 years. If this year is really the year of La Nina, then 9 years in the 72 years will be in the triple La Nina phenomenon, and the probability of 1/8 is not so "rare". If we count the two times in the 1950s and 1980s, the frequency is about 1/5, which is even higher.

After all, in the past 72 years, the year of La Nina has only accounted for less than half. According to this method, almost 1/2 of the year of La Nina is in the triple La Nina phenomenon, which is really not rare...

When talking about this issue, the word used by Professor Petteri Taalas, Secretary-General of the World Meteorological Organization, was exceptional. Some people translated this word as "rare", but I think it expresses another translation: "abnormal" and "special".

No matter what, the impact of the triple La Nina phenomenon on the climate is extremely huge, and there is no doubt about it. Whether this winter is cold or hot depends largely on how long the La Nina phenomenon can last.

Taalas introduced that the continuous drought in Horn of Africa (Northeast Africa) and southern South America, as well as the precipitation of Southeast Asia and Oceania above the average level in previous years, have shown the basic characteristics of the La Niña phenomenon.

According to the latest research by the World Meteorological Organization, the La Nina phenomenon, which began in September 2020, is highly likely to continue to exist for half a year. Specifically, there is a 70% chance that the La Nina phenomenon will last from September to November this year; there is a 55% chance that the La Nina phenomenon will last from December this year to January next year.

For us, this winter may be very cold again. I believe everyone still remembers the cold waves after wave last year. Under the continuous influence of the La Niña phenomenon, the number and intensity of cold waves in my country this winter are worthy of everyone's special attention.

In normal years, although cold waves are inevitable, their frequency is low and the duration of each time is limited, so the cold winter can also be avoided by heating after the cold wave.But in the La Nina year, the frequency of cold waves is higher, and it may be that before you can recover, it will cool down again, which will cause the temperature throughout the winter to be lower than that in normal years.

Take 2008 as an example, and that year was the year of La Nina. I believe many people still remember that in that winter, many areas in southern my country encountered rare snow disasters, with the number of people suffering from disasters exceeding 100 million!

In addition to the temperature, the La Nina phenomenon will also cause a lot of precipitation in northern my country, and even autumn floods. For example, in 1974, 1984 and 2000, there was a lot of precipitation in the Yellow River and Huaihe basins, which is very unfavorable to the lives and agriculture of our country.

Meteorological experts also pointed out that the triple La Nina phenomenon is a minority in history, and there is limited historical data available for research. What impact it will have on our country's climate cannot be concluded at present. In the future, it will also depend on the changes in various factors such as La Nina's own strength, development and evolution trend, the location of the cold sea temperature center, etc.

Not only will our country be affected, but many other countries in the world have to be vigilant. The drought in the Horn of Africa has affected millions of people and is likely to worsen in the future. Australia is about to enter spring and summer, and there may be continuous heavy rain in the next few months, which may also cause floods. It is not ruled out that the hurricane may occur.

Atmospheric scientist Kimberley Reid from the ARC Extreme Climate Research Center of Monash University in the country said: "I dare to bet on my entire net worth. Floods will inevitably occur in eastern Australia in the next six months. The climate patterns of the Pacific, Indian Ocean and Southern Ocean all hint at the wetness of this spring. At present, rivers and dams are basically full, and any of them are likely to cause floods."

Experts introduced: With the intensification of the global warming of process, "the tropical Indian Ocean, Atlantic Ocean and Western Pacific warm faster, the inter-degree and long-term warming trends of the three oceans are uneven, and the impact between sea basins is conducive to the continued occurrence of the La Niña phenomenon." In other words, we may see more triple La Nina phenomena in the future.

Some people will say that the La Nina phenomenon can at least cool down the fevered earth. But the reality is that the triple La Niña only lowers the temperature in winter at most, and cannot reverse the general trend of global warming. We have been in the La Nina phenomenon for two consecutive years, but we still cannot escape the scorching heat of this year. As long as the climate deterioration does not stop, we will see more extreme weather in the future.

In short, since many experts have proposed the possibility of triple La Nina, everyone should be prepared to welcome the cold winter. After all, we have an old saying, "The hotter summer is, the colder winter is." Although people in the past did not have such advanced technology, the summarized experience is still worth referring to.