Records of low temperatures in the polar stratosphere
According to NASA data, the temperature of the polar stratosphere is at its lowest point since 1978, there is a rare and potentially historic outbreak of stratospheric clouds,
The photo above shows stratospheric clouds, they are inside the Polar Circle and they are very beautiful, it looks like a rainbow, this photo is by photographer Janne Kukkola, who took them from Rovaniemi, Finland.
They are very beautiful, it seems as if a unicorn had galloped there through the sky, but for a meteorologist it is something very different, it is as if the unicorn had been slit, it is a warning, according to media reports spaceweather.com the earth's stratosphere normally does not It normally has clouds, it only has clouds when the temperature drops below -85 degrees Celsius, when it drops below that temperature, because then the water molecules that are very dispersed, because the stratosphere, the density of the atmosphere there is very weak, there are the molecules they are very dispersed and only when it drops below that temperature can the molecules join together to form polar stratospheric clouds that are very cold, very frozen.
This super cold air is responsible for this statistic that NASA has recorded and of course this super cold air is responsible for the formation of those anomalous clouds that they captured in Finland, it is a sign that it is very cold there and that is a problem , so it is no coincidence that the polar vortex is very cold right now.
The polar vortex is a persistent cyclone that is located in the middle and upper troposphere, which is the part of the atmosphere in which we are and most airplanes fly and in the stratosphere, the vortices because there are two, one in the north at the North Pole and another at the South Pole, the vortices are good, they are our friends because they keep the cold air locked over the Arctic, unless the vortex breaks because everything has its limit, in that case when When the vortex breaks, cold air escapes southward and causes a wave of extremely cold weather.
It is a climate roulette that affects Canada, the United States, Europe, Russia, Siberia, China, the two Koreas and Japan. If it breaks now, there will be a record cold wave. How long can that extremely cold air last? I suppose at least one more week. , until the beginning of February, the drop began at the beginning of January, by the way, the fact that it is so cold in the United States means that in Europe we are a little warmer in temperature, but these are things about the climate, they are specific events, they don't really have to do with climate change.
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