In particular, our results indicate that the EEP is the dominant solar-related driver affecting the polar vortex, while the role of the varying solar irradiance is considerably weaker and mostly
What is the polar vortex? ADITI SHESHADRI: The polar vortex forms every winter because of the temperature difference between the equator and the poles. In the polar stratosphere, sunlight basically gets cut off during
But energy circling the atmosphere can sometimes smash into the polar vortex, like two hands trying to fling a rubber band, stretching it into something more oblong than circular.
For much of this winter season, the polar vortex winds at 60°N have been racing around the stratospheric polar region. During February alone, these west-to-east winds were two times stronger than normal for that time of
In this work, recent results concerning solar activity effects on the state of the stratospheric polar vortex as well as its role in solar–atmospheric links are discussed.
Polar vortex expert Amy Butler and Arctic expert James Overland offer perspectives on the February cold snap in the southern U.S., the polar vortex, and how the Arctic might influence mid-latitude weather.
A polar vortex is not always responsible for the cold Satellites can recognize a polar vortex event before the cold arrives Climate change could enhance polar vortex events
Vortex flows, related to solar convective turbulent dynamics at granular scales and their interplay with magnetic fields within intergranular lanes, occur abundantly on the solar
On polar routes, where the Earth''s magnetic field offers the least protection, radiation levels can spike during solar storms. Airlines may reroute flights, increasing costs and delays.
The polar vortex is a massive area of cold air located high in the atmosphere, typically spinning over the north pole. Imagine it as a giant, icy whirlpool far above the Earth, keeping frigid
Like the Earth, the Sun likely has swirling polar vortices, according to new research. But unlike on Earth, the formation and evolution of these vortices are driven by
Here, we show that solar cycle magnetic fields provide a plausible mechanism for the formation of polar vortices in the Sun. Observing polar regions of the Sun could provide important clues for
"So while the polar vortex was covering a fairly wide region, areas on the margins, which have more normal temperatures, might be able to export energy." The grid can accommodate a lot more wind and solar, as long
In that sense, the polar vortex *by itself* cannot cause climate change, but if greenhouse gases are added to the system that can affect how winds blow including the polar vortex.
For all that the Sun is a ubiquitous and vital part of our lives, a lot about it remains baffling. And now it''s done something decidedly peculiar. Material from a filament of plasma erupting from the Sun''s surface broke away
A polar vortex could bring cold winds to much of the U.S. as the new year approaches—but what exactly is a polar vortex, and how could it affect the weather in 2025?
Observations of the latitude dependent "spin" near the poles have been ongoing since 2003 using the McMath-Pierce Solar Telescope facilities at Kitt Peak. As expected, due
Abstract Understanding atmospheric impacts of solar energetic particle precipitation (EPP) remains challenging, from quantification of the response in ozone, to implications on
Here, we show that solar cycle magnetic fields provide a plausible mechanism for the formation of polar vortices in the Sun. Observing polar regions of the Sun could provide important clues for understanding the origin of solar magnetism
In this work, recent results concerning solar activity effects on the state of the stratospheric polar vortex as well as its role in solar–atmospheric links are discussed.
The stratospheric polar vortex (SPV) profoundly affects northern hemisphere weather and climate, with its dynamics influenced by terrestrial and solar factors. Despite established terrestrial influences, the quantitative effects
A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation shows the vortex also moved away from the Arctic towards Europe.
The tale behind a polar vortex People on the Prairies have been hunkered down under extreme cold warnings, brought about by a polar vortex, but how does that weather phenomenon work?
What is a polar vortex and how does it work? A polar vortex is located in the polar regions and it is an area with cold air and low pressure. In the polar vortex the air flows counterclockwise because of the jet stream. The jet stream is a strong
Thus, variations in solar radiative energy, which is the main source of the Earth’s atmosphere circulation, may also be considered as a possible factor contributing to polar vortex intensification on the multidecadal time scale. 3.3. Possible Mechanisms of Solar Activity Effects on the Polar Vortex Intensity
Veretenenko, S.; Ogurtsov, M. Stratospheric polar vortex as a possible reason for temporal variations of solar activity and galactic cosmic ray effects on the lower atmosphere circulation. Adv. Space Res. 2014, 54, 2467–2477.
In particular, our results indicate that the EEP is the dominant solar-related driver affecting the polar vortex, while the role of the varying solar irradiance is considerably weaker and mostly insignificant. Solar irradiance weakens the polar vortex in the upper stratosphere in February.
Earlier studies have shown that the Sun affects the polar vortex via two factors: varying solar irradiance (e.g., Labitzke & Van Loon, 1988; Kodera & Kuroda, 2002; Gray et al., 2010) and energetic electron precipitation (EEP) (e.g., Rozanov et al., 2005; Seppälä et al., 2013; Arsenovic et al., 2016; Salminen et al., 2019 ).
Thus, we can suggest that the ~60-year variations in intensity of the stratospheric polar vortex may be associated with similar variations in high-speed solar wind streams, which contribute to the development of magnetic storms with gradual commencements, as well as in characteristics of the solar sources of these streams (coronal holes).
The polar vortex is implicated in a variety of atmospheric processes, such as the formation of ozone holes, the North Atlantic and the Arctic Oscillations, variations in extratropical cyclone tracks, etc.
