Polar vortex defies climate change in the Southeast

February 14, 2018, Dartmouth College
Winter warming hole location in the southeastern US. Credit: Trevor Partridge

Overwhelming scientific evidence has demonstrated that our planet is getting warmer due to climate change, yet parts of the eastern U.S. are actually getting cooler. According to a Dartmouth-led study in Geophysical Research Letters, the location of this anomaly, known as the "U.S. warming hole," is a moving target.

During the winter and spring, the U.S. warming hole sits over the Southeast, as the polar vortex allows arctic air to plunge into the region. This has resulted in persistently cooler temperatures throughout the Southeast. After spring, the U.S. warming hole moves north and is located in the Midwest.

The study found that winter temperatures in the U.S. warming hole are associated with a wavier jet stream, which is linked to natural climate cycles over the Atlantic and Pacific Oceans, and potentially to climate change. Previous research has illustrated that warming temperatures and melting Arctic sea ice set up conditions for a wavier jet stream. The study revealed that the jet stream over the U.S. became wavier in the late 1950's, coincident with the start of the warming hole. As such, since the late 1950's, the has been cooling the southeastern U.S. during the winter.

"By discovering that the U.S. warming hole's location depends on the season, we've found a new way to help understand this phenomenon," says Jonathan M. Winter, an assistant professor of geography at Dartmouth and principle investigator for the research. "For example, the recent extreme cold snaps in the Southeast, which seem counterintuitive to , may be related to the U.S. warming hole," added Trevor F. Partridge, a graduate student in earth sciences at Dartmouth and the study's lead author.

While the wintertime U.S. warming hole was found to be associated with the wavier jet stream, this was not the case for summertime temperatures. This conclusion supports previous studies that find connections between the summer warming hole in the Midwest and intensified farming, increased irrigation and air pollution, which primarily impact climate in summer and autumn.

The study provides new insight on when the U.S. warming hole occurred and where it is located spatially. Using National Oceanic and Atmospheric Administration data from 1,407 temperature stations and 1,722 precipitation stations from throughout the contiguous U.S. from 1901 to 2015, the researchers examined and precipitation data over time for all stations, and identified stations that were persistently cooler than average from 1960 to 2015. Daily temperatures in the warming hole cooled by an average of 1.2 degrees Fahrenheit since 1958, compared to a global average warming of about 1 degree Fahrenheit over the same period. The findings provide greater context on the cause of the U.S. hole, a phenomenon that has large implications for both the U.S. agricultural sector, and Midwest and Southeast weather now and potentially into the future.

Explore further: What do cold snaps have to do with climate change?

More information: T. F. Partridge et al. Spatially Distinct Seasonal Patterns and Forcings of the U.S. Warming Hole, Geophysical Research Letters (2018). DOI: 10.1002/2017GL076463

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21 comments

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julianpenrod
1.3 / 5 (13) Feb 14, 2018
There is significant invalidity in this article.
Among other things, saying the planet is getting warmer due to "climate change". In fact, the supposed warming is the claimed "climate change".
But, again, climate is not changing, only the temperature of the air. But air does not change itself. And there are many factors which influence it including land, oceans, solar radiation, life. It's the combination of these mutually interacting factors that cause climate. Climate is an eigenstate of these factors. Air temperature is changing because of chemtrails, doping the air with weather modification chemicals from jets producing long, non dissipating, vapor lanes.
The "warming hole" sounds very much like the non vanishing tangential vector field in topology on a closed surface, suggesting it is fed by winds fueled by chemtrails rather than ambient temperature.
Caliban
4.6 / 5 (9) Feb 14, 2018
jp,

Please explain the mechanism by which winds are "fueled by chemtrails", and provide the relevant citations in support.

No need to explain how the wind inside your skull is fed by vapor, though.
leetennant
4.2 / 5 (10) Feb 14, 2018
There is significant invalidity in this article.
Among other things, saying the planet is getting warmer due to "climate change". In fact, the supposed warming is the claimed "climate change".
But, again, climate is not changing, only the temperature of the air. But air does not change itself. And there are many factors which influence it including land, oceans, solar radiation, life. It's the combination of these mutually interacting factors that cause climate. Climate is an eigenstate of these factors. Air temperature is changing because of chemtrails, doping the air with weather modification chemicals from jets producing long, non dissipating, vapor lanes.
The "warming hole" sounds very much like the non vanishing tangential vector field in topology on a closed surface, suggesting it is fed by winds fueled by chemtrails rather than ambient temperature.


Word salad.
grandpa
2.1 / 5 (9) Feb 15, 2018
The scientists are correct. Carbon dioxide will warm the planet. However the evidence is that the earth has been really cold the last couple million years. Thanks to humans we will be getting the temperatures into a better zone for sustainability of life on earth. Most of our mega fauna has become extinct due to these persistent cold temperatures. See chart below for just how much colder the last 2 million years have been. https://www.googl...-6qELyM:
guptm
1.9 / 5 (9) Feb 15, 2018
Grandpa, absolutely agreed with you. The planet must get warmer to be able to get back to a more flourished flora and fauna. Not many people can understand this.
TrollBane
4.4 / 5 (7) Feb 15, 2018
"Word salad." Indeed. Verging on 'Seizure Salad'. He came. He saw (the headline). He propagandized. ;)
TrollBane
4.3 / 5 (12) Feb 15, 2018
guptm: "Grandpa, absolutely agreed with you. The planet must get warmer to be able to get back to a more flourished flora and fauna. Not many people can understand this."

That's because most people here are informed enough to understand that the pace of change is important, and that the ancient times you and your ilk are so fond of referencing had no civiliization with billions dependent on agriculture and water from disappearing glaciers.

unrealone1
1.7 / 5 (6) Feb 15, 2018
Was warmer in the past
https://wattsupwi...he-past/

The Greenland GISP2 core sample shows cooling for 8,000 years..
snoosebaum
1 / 5 (5) Feb 15, 2018
Oh no ! theres a hole in the GW theory , the US ''warming hole '' , sounds like a place to get warm.
rrwillsj
1 / 5 (1) Feb 16, 2018
The deniers are the twits who rely on public welfare to pay their electric bills from running their air conditioners 24/7.
cantdrive85
1 / 5 (4) Feb 18, 2018
The deniers are the twits who rely on public welfare to pay their electric bills from running their air conditioners 24/7.

Another lie from an AGWite worshipper. The fact is that AGWite Chicken Little twit climate "scientists" are on public welfare with their gov't grants and such. These worthless leeches are a constant drag on the economy.
snoosebaum
1 / 5 (4) Feb 18, 2018
Skepticism is not denial except in the Postmodern / maoist enviroment of the universites and areas of their influence
gkam
3 / 5 (2) Feb 18, 2018
Oh yeah, . . I was just plotting with Mao yesterday, . . . in your fantasy.
snoosebaum
1 / 5 (2) Feb 18, 2018
gkam , so you think the issues raised by this ,

https://www.youtu...EC1IpYIA

are not real ?
gkam
1 / 5 (1) Feb 18, 2018
It was such poor quality it was hard to follow, but I can see they are extremists.
And my hearing is going fast.

Tell me about those issues.
snoosebaum
1 / 5 (2) Feb 18, 2018
Sjw' ism is based on the ideas of french' postmodern' philosophers such as Derrida who say that all our values ideas are subjective , creations of our will. They are Marxists having failed at blaming ecomomic inequality on capitalism , they now blame it on social inequality. Since everything including science is purely subjective there is no point in discusssion or disagreement. you must just agree with whatever they posit at the moment . They, like the maoists are violent and abusive to any dissenters while preaching love and equality. Their leading critic has come to be Jordan Peterson a canadian clinical psyhcologist who offers a scientific rebuttal to their claims of there being no gender differences or the historical perspective of the brutal failures of their marxism . But , then he is to be shouted down or ignored . what is frightening is that these levels of stupidity are being enshrined in law in Canada and our government along with UK , Eu are actively promoting these ide
snoosebaum
1 / 5 (2) Feb 18, 2018
Theiy want [ like the marxists] to undermine and destroy western culture and legislate their ideals of 'equality'. There is hope as the more extreme their ideas become the weaker they get.
leetennant
5 / 5 (3) Feb 18, 2018
Theiy want [ like the marxists] to undermine and destroy western culture and legislate their ideals of 'equality'. There is hope as the more extreme their ideas become the weaker they get.


Let's just ponder the notion that you believe equality is antithetical to western culture...
gkam
3 / 5 (2) Feb 18, 2018
"There is hope as the more extreme their ideas become the weaker they get."

Sounds like the Deniers and the Baggers.

Seen the tweets from the President lately? He is coming apart, and has no refuge now. He is the manifestation of their philosophy, perpetual pre-adolescence.

"their ideals of 'equality'"

Equality to me means neither of us is armed.
snoosebaum
1 / 5 (2) Feb 18, 2018
He is the manifestation of their philosophy, '' ? since they are the most rabidly anti trump this makes no sense.


leet,
i was referring to their version of equality ie there is zero difference between sexes , forget DNA its all just subjective

you guys just like to argue , lol
leetennant
5 / 5 (3) Feb 18, 2018
He is the manifestation of their philosophy, '' ? since they are the most rabidly anti trump this makes no sense.


leet,
i was referring to their version of equality ie there is zero difference between sexes , forget DNA its all just subjective

you guys just like to argue , lol


Yeah we're weirdly pedantic about things like logic and what words mean. Freedom of speech includes the right to say really dumb things though so, feel free. I also have the right to point out that they're dumb.

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