Scientists discover that the amount of tornadoes in the US UU It has decreased as the sea ice retreats in the Arctic

Arctic sea ice plays an important role in the jet stream - or in the fast-moving air currents that circle the planet. When the sea ice retreats, the path of the jet stream changes, according to the researchers. This can eliminate the favorable conditions for tornadoes. Stock Photo

Scientists have discovered a peculiar connection between the activity of Arctic sea ice and climate in the United States.

Among the many climate-related changes that the United States has seen in recent years, researchers say there have been fewer tornadoes in the last decade than in the past.

And, according to a new study, melting sea ice could be partly to blame.

As it is known that Arctic sea ice affects the route of the jet stream, the researchers say that its backward movement could be causing changes in atmospheric circulation that will reduce favorable conditions for tornado formation.

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Arctic sea ice plays an important role in the jet stream - or in the fast-moving air currents that circle the planet. When the sea ice retreats, the path of the jet stream changes, according to the researchers. This can eliminate the favorable conditions for tornadoes. Stock Photo

Arctic sea ice plays an important role in the jet stream – or in the fast-moving air currents that circle the planet. When the sea ice retreats, the path of the jet stream changes, according to the researchers. This can eliminate the favorable conditions for tornadoes. Stock Photo

The new analysis of almost 30 years of climatic and climatic data revealed that the reduced activity of the tornado is often aligned with periods of greater ice loss.

According to the researchers, the correlations were especially significant in the month of July.

"A relationship between Arctic sea ice and tornadoes in the United States may seem unlikely," said Robert Jeff Trapp, professor of atmospheric science at the University of Illinois.

"But it's hard to ignore the growing evidence in support of the connection."

Arctic sea ice plays an important role in the jet stream – or in the fast-moving air currents that circle the planet.

When the sea ice retreats, the path of the jet stream changes, according to the researchers.

Instead of following its usual summer route through the center of the United States through states such as Montana and South Dakota, it migrates further north.

And, with that go the atmospheric conditions that give rise to the tornadoes.

As Arctic sea ice is known to affect the path of the jet stream, researchers say that its withdrawal could be causing changes in atmospheric circulation that change tornado patterns in the United States.

As Arctic sea ice is known to affect the path of the jet stream, researchers say that its withdrawal could be causing changes in atmospheric circulation that change tornado patterns in the United States.

As Arctic sea ice is known to affect the path of the jet stream, researchers say that its withdrawal could be causing changes in atmospheric circulation that change tornado patterns in the United States.

"Their parents' tornadoes and thunderstorms are fueled by wind shear and moisture," said Trapp.

"When the jet stream migrates to the north, wind shear is needed for the trip, but not always the humidity.

"So, although thunderstorms can still develop, they tend not to generate tornadoes because one of the essential ingredients for tornado formation is now missing."

The apparent correlation has raised a series of questions. The researchers are not very sure, for example, why the link seems to be stronger in July.

HOW DOES A TORNADO FORM?

Simulations of recent supercomputers revealed a glimpse into the catastrophic conditions within a tornado-producing supercell storm.

In the new simulation at the University of Wisconsin-Madison, the scientists used real-world observation data from the deadly tornado "El Reno" in 2011.

New simulations have revealed a look at the conditions within a tornado-producing supercell storm

New simulations have revealed a look at the conditions within a tornado-producing supercell storm

New simulations have revealed a look at the conditions within a tornado-producing supercell storm

The atmospheric sound of the archived data revealed the vertical profile of temperature, air pressure, wind speed and tornado humidity.

There are a number of factors that are said to be "non-negotiable" in the formation of a tornado, the researchers explained.

This includes abundant humidity, instability and wind shear in the atmosphere, and a trigger that moves the air upward, as the difference in temperature or humidity.

But, this does not always mean that a storm will occur.

"In nature, it is not uncommon for storms to have what we understand to be all the right ingredients for tornadogenesis and then nothing happens," said Leigh Orf, a scientist at the Cooperative Institute of Meteorological Satellite Studies (CIMSS).

"The storm chasers who track tornadoes are familiar with the unpredictability of nature, and our models have been shown to behave similarly."

But, the new understanding could ultimately pave the way for better methods of seasonal prediction of severe weather.

"One of the reasons we focus on sea ice is because, like the ocean and the land, it's relatively slow to evolve," Trapp said.

"Because sea ice and the atmosphere are coupled, the response of the atmosphere is also relatively slow.

"We can use this property to help make long-term predictions for tornadoes and hail, similar to how predictions are made for hurricane seasons."

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