2020-09-11

The La Niña phenomenon has appeared in 2020! The impact has begun, and this winter is”extraordinarily cold”?

By yqqlm yqqlm

Author:Wen/Yu child of

determined! The La Niña phenomenon has taken shape in 2020, and the US Climate Prediction Center has issued an authoritative statement, which means that the global climate change may be further strengthened. Of course, the formation of the La Niña phenomenon will also have a certain impact on our country, only the intensity. It’s not the same, so you should prepare. This is also a new natural phenomenon following a weak El Niño phenomenon in 2020. The formation of La Niña will bring the signal of cooling down, which is a common phenomenon.

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Of course, although the La Niña phenomenon has a cooling effect, it does not mean that the earth will experience a”dramatic” major cooling situation, because today’s global warming may be far greater than the cooling of the La Niña phenomenon Degree, so 2020 may still be the hottest year ever.

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NOAA confirms that the La Niña phenomenon has appeared

According to the new public data released by NOAA in September, the La Niña phenomenon has actually The month appeared, and it is expected that there will be a 75%probability that it will continue throughout the winter, so this winter will likely be one of the main periods of the La Niña phenomenon. According to the Niño 3.4 sea surface temperature anomaly monitoring data in recent months, They have reached the average, and in the data collected in August, there has been a minimum limit of -0.6°C. Although this is not the only standard, the comprehensive data has met the long-term average of 1986-2015 value.

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At the same time, according to most dynamic computer models, the sea surface temperature will remain below the La Niña threshold of -0.5°C throughout the winter. Therefore, NOAA has published a 75%probability in winter. Under the influence of the La Niña phenomenon, changes in atmospheric circulation over the Pacific Ocean will continue to affect Global weather and climate phenomena, although El Niño will also have an impact, but the two are opposite. At the same time, the La Niña phenomenon can also cause more than average rainfall in Indonesia, cool and humid weather in southern Africa, drier weather in southeastern China, and other effects.

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What impact has the Nara Nina phenomenon brought about?

The most serious possibility now is the United States, so its influence has already begun. According to information released by the US Meteorological Center, after the formation of La Niña, the current fire in the United States may continue until November or even December. At the same time, Weather Tiger LLC President Ryan Truchelut also said that it is exacerbating the existing heat and drought problems. Therefore, the high temperature, drought, wildfire and other problems in the United States today are already a”by-product” of the La Niña phenomenon. The California fire in the United States has become the worst wildfire season in history. 2.5 million acres of land were engulfed by flames, an unprecedented area.

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At the same time, the storm on the ocean area is continuing David, Hurricane Laura is a typical example. At the same time, the following may also lead to colder winters in the northern United States than before, resulting in floods in northern Australia and increased precipitation in the three southern states of Indonesia and Brazil. Of course, the latest data obtained from NASA (NASA) shows that in early September 2020, the temperature in the southwestern United States was actually monitored at an extreme high temperature of 45 degrees. This is very frightening, because the United States has never There will be such a high temperature, and it has already appeared in 2020.

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So it can be clearly stated that the La Niña phenomenon has formed, and the impact on the United States has already appeared. Of course, this means that the impact on China will continue to increase in the future, and we need to pay attention to the land area. The weather changes and the overall situation in the Northwest Pacific, the emergence of typhoon embryos one after another today may also be related to it. Of course, we are here to focus on the possible impact this winter.

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2020 The climate or major changes in the year, what impact will the La Niña phenomenon have on our country?

As long as we talk about the La Niña phenomenon, everyone may directly think of the ice and snow climate in 2008. A large area of ​​China can be said to have extremely strong snowfall in 2008, but today’s La Niña According to the index, the Nila phenomenon is in a weak state, but the probability will continue to increase. After all, a value of -0.6°C has been observed in August. From the latest Niño3.4 value today It seems that after the continuous decline, it is directly approaching -0.8°C, so the intensity of the La Niña phenomenon may increase.

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Of course, this means that the impact of the La Niña phenomenon may also increase. According to the general situation of the”La Niña year”, it is easy to cause the winter climate in my country to be colder and prone to cold winters. Therefore, we need to prepare in advance, but from the perspective of global warming, the possibility of reversing the warm winter is still relatively small, that is, the possibility of a warm winter is still greater, so everyone should always pay attention to the development of the La Niña phenomenon. It is still declining, which is equivalent to an enhanced signal.

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The World Meteorological Organization has also stated that even if the La Niña phenomenon is formed, it is unlikely to reverse the situation of the earth’s warming, so this year may still be the hottest year in history, and of course it is still It may also be too hot, so we have been saying that the possibility of a warm winter is greater, and this is through climate change.

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Due to various factors in climate, cold winter or warm winter will end It is impossible to determine with certainty who will appear. So far, it can be said that no country in the world can accurately state whether the country is cold or warm. Don’t misunderstand. From the trend this year, the possibility of a warm winter is slightly greater, and there will be no particularly cold weather. Reference-oriented.