Polar swirls are not associated with climate change: UNAM – Health, Education and Welfare – Notes

The prevailing climate situation on the planet, with the intense cold prevailing in the north and the scorching temperatures in the south, attracts the attention of the whole world because while in Argentina the heat makes breathing difficult in Chicago hot water released into the air is frozen less than a second.

The low temperatures recorded in the central United States, badociated with the mbad of polar air, are extreme.

However, polar swirls are weather events that occur at the poles each winter in winter. They are therefore not extraordinary events and are not badociated with climate change, according to UNAM scholars. Graciela B. Raga and Christian Domínguez Sarmiento of the Center for Atmospheric Sciences (CCA) explained that the maximum winds, in the case of vortices, are not strictly on the poles, but between 50 and 60 degrees, but in this case they have moved a little more sometimes and that's why Canada and regions like Chicago, at 42 degrees latitude, have experienced extreme temperatures that they are not used to.

The polar vortex is a region of low pressure that surrounds both poles. It produces strong winds about ten kilometers from the altitude of the atmosphere, which causes very low temperatures inside, constituting a mbad of polar air.

It is more common than in the Northern Hemisphere, deformation and disturbances or elongations (elongations)

So, what happened last January is that when it distorted, it broke in more than a whirlwind and moved a little further south of the American continent, said Graciela B. Raga.

When the vortex is deformed, its center can move from its typical location on the North Pole and Siberia and minimum temperatures are observed at the center of the vortex.

In this case, it was a little further south and that's why these temperatures are so low in Canada and Chicago, but, he insists, this is part of the normal variability of the 39 atmosphere and occurs with some frequency in winter.

The fact that the polar vortex has moved to parts of North America does not mean that it is larger than normal and it is not uncommon for a phenomenon of this type was deformed and broken.

"This has happened in other winters, it is not a catastrophic event," he said. In this regard, Christian Domínguez Sarmiento said: "Climate change, as its name suggests, is a variation of climate achieved through a record 30 years.

These vortex breaks have occurred several times in the past and to badociate them with the changing global climate, one would have to study for more than three decades. "

The low temperatures recorded in the United States, badociated with the mbad of polar air, are extreme.

Extreme events have been recorded on the planet, but not only are the temperatures low, they are also very hot, as in the case of Australia, which now has very high temperatures.

These are contrasts on the planet, no attribution study tells us that these events have increased in frequency and that they can be attributed to climate change, he repeated.

These lengthening or lengthening of vortices, like all weather phenomena, occur on a time scale of a few days, during which it develops and evolves, so that these anomalies occur, last for a short time and return to their values. normal.

This means that it will not last all winter; "In fact, the forecasts indicate that in the coming days temperatures will increase, even the Chicago area will have, next week, relatively warm temperatures for the winter," he concluded.