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#geomagneticstorms — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #geomagneticstorms, aggregated by home.social.

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  1. Weekly Update from the Open Journal of Astrophysics 11/07/2026

    Back home to Maynooth, just in time for another Saturday update of activity at the Open Journal of Astrophysics. Since the last update we have published a further nine papers, bringing the number in Volume 9 (2026) to 145 and the total so far published by OJAp up to 593.

    I will continue to include the posts made on our Mastodon account (on Fediscience); these announcements also show the DOI for each paper.

    The first paper to report this week, published on Tuesday 7th July, is “The Information Content of Quasar Variability Light Curves: How Well Can we Infer Stochastic Model Parameters?” by Brendon Brewer (U. Auckland, NZ), Geraint F. Lewis (U. Sydney, AU), Xiang Yu & Yuan Li (Auckland). Published in the folder Astrophysics of Galaxies, this study suggests that quasar variability studies should focus on the short term volatility parameter, as it’s more informative than the variability timescale. Volatility decreases with redshift suggesting intrinsic effects.

    The overlay for this paper is here

    You can find the officially accepted version on arXiv here and the announcement on Fediverse here:

    https://fediscience.org/@OJ_Astro/116877118638227811

    The second paper for this week, also published on Tuesday 7th July, but in the folder High-Energy Astrophysical Phenomena, is “Cygnus X-3 as a PeVatron and the LHAASO 2025 data” by Michael Kachelriess & E. Lammert (NTNU, Trondheim, Norway). This paper suggests that the high-mass X-ray binary Cygnus X-3 can accelerate cosmic rays beyond PeV energies, contributing to a photon flux peaking around PeV energies.

    The overlay looks like this:

    The official version of the paper can be found on arXiv here and the Fediverse announcement here:

    https://fediscience.org/@OJ_Astro/116877369307135417

    The third paper of the week, also published on Tuesday 7th July, but in the folder Cosmology and Nongalactic Astrophysics is “The DESI DR1 Peculiar Velocity Survey: growth rate measurements from galaxy and momentum correlation functions” by Ryan J Turner (Swinburne Institute of Technology, Australia) and 63 others from around the world. This paper analyzes local peculiar velocity and galaxy density fields to test cosmological models of gravity, finding results consistent with predictions from Planck+ΛCDM cosmology and general relativity.

    The overlay for this one is here:

    The final, accepted version can be found on arXiv here and the Mastodon announcement is here:

    https://fediscience.org/@OJ_Astro/116877601913437714

    The fourth paper of the week, published on Wednesday 8th July in the folder Instrumentation and Methods for Astrophysics , is “Morphological Fingerprints of Forbush Decreases and Their Relation to Geomagnetic Storm Severity” by Juan Diego Perez Navarro and David Sierra Porta (Universidad Tecnológica de Bolívar, Colombia). This article introduces a graph-based method to analyze Forbush decreases (FDs), transient depressions in cosmic-ray flux, and uses network signatures to predict geomagnetic storm intensity.

    The overlay for this one is here:

    You can read the final version of this one on arXiv here and the Mastodon announcement is here:

    https://fediscience.org/@OJ_Astro/116837827227415689

    The fifth paper of the week, also published on Wednesday 8th July but in the folder Astrophysics of Galaxies, is “On the connection between galaxy orientation and halo absorption properties” by Rohan Venkat, Soo May Wee, and Hsiao-Wen Chen (U. Chicago, USA). This article investigates the azimuthal dependence of metal-line absorption in the circumgalactic medium of 87 isolated galaxies. The results show no significant correlation between absorption strength and azimuthal angle.

    The overlay for this one is here:

    You can read the final version of this one on arXiv here and the Mastodon announcement is here:

    The sixth paper of this week is “Searching for Periodicity in FRB 20240114A” by Jonathan I Katz (Washington U., USA). This was published on Thursday 9th July in the folder High-Energy Astrophysical Phenomena. The study described in this paper observed FRB 20240114A, an active Fast Radio Burst, but found no significant periodicity in its bursts, contradicting magnetar models predictions.

    The overlay for this one is here:

    You can find the final accepted version on arXiv here and the Mastodon announcement is here:

    https://fediscience.org/@OJ_Astro/116888362191860771

    The seventh article for this week is “Multiphase gas in Circumgalactic cloud complexes: Insights from kiloparsec-scale Magnetohydrodynamic Turbulence Simulations” by Rajsekhar Mohapatra (Princeton U., USA), Alankar Dutta (MPA Garching, Germany) and Prateek Sharma (Indian Institute of Science, Bangalore). This -paper was also published on Thursday 9th July, in the folder Astrophysics of Galaxies. This paper uses high-resolution simulations to investigate the mass distribution of the circumgalactic medium (CGM), a diffuse gas surrounding a galaxy’s halo with small-scale clumps of cold gas forming in quiescent regions.

    The overlay for this one is here:

    You can find the final accepted version of this one on arXiv here and the Mastodon announcement is here:

    https://fediscience.org/@OJ_Astro/116888423374478219

    The (penultimate) eighth article for this week is “Line-of-sight shear in SLACS strong lenses I: shear and mass model parametrisations” by Natalie B. Hogg (U. Cambridge, UK), Daniel Johnson (U. Montpellier, France), Anowar J. Shajib (U. Chicago, USA) and Julien Larena (Montpellier). This was also published on Thursday 9th July, but in the folder Cosmology and Nongalactic Astrophysics. This article studies models of 23 strong gravitational lenses to measure line-of-sight shear for the first time, providing potential new constraints on cosmological parameters.

    The overlay for this one is here:

    You can find the final accepted version on arXiv here and the Mastodon announcement is here:

    https://fediscience.org/@OJ_Astro/116888620656683811

    The ninth and last article for this week is “Current and future constraints on the expansion history of the GREA model” by Irene Graziotti (INAF-Osservatorio Astronomico di Capodimonte, Italy), Chiara De Leo (Sapienza University of Rome, Italy) and Matteo Martinelli (INAF-Osservatorio Astronomico di Roma, Italy). This study explores the General Relativistic Entropic Acceleration (GREA) framework, comparing it to the standard description of the universe. Current data favors the standard model, but GREA remains competitive.

    The overlay for this one is here:

    You can find the officially-accepted version on arXiv here and the Mastodon announcement here:

    https://fediscience.org/@OJ_Astro/116894079326256820

    As you can see, it has been a bumper week, especially when you consider that there was no arXiv mailing om Monday July 6th owing to the July 4th holiday in the USA. I should have known this would happen while I was travelling!

    #arXiv250116292v3 #arXiv251100229v2 #arXiv251203230v2 #arXiv251209075v2 #arXiv251218786v3 #arXiv251224936v3 #arXiv260216128v3 #arXiv260301934v2 #arXiv260601496v2 #AstrophysicsOfGalaxies #CircumgalacticMedium #cosmicRays #cosmologicalParameters #Cosmology #CosmologyAndNonGalacticAstrophysics #CygnusX3 #DESI #DiamondOpenAccess #DiamondOpenAccessPublishing #fastRadioBursts #ForbushDecreases #FRB20240114A #GalaxyShapes #GeneralRelativisticEntropicAcceleration #GeomagneticStorms #GREA #HighEnergyAstrophysicalPhenomena #InstrumentationAndMethodsForAstrophysics #lineOfSightShear #magnetohydrodynamicTurbulence #OpenAccess #OpenAccessPublishing #peculiarVelocities #pevatron #quasarVariability #quasars #SLACS #strongGravitationalLensing
  2. Weekly Update from the Open Journal of Astrophysics 11/07/2026

    Back home to Maynooth, just in time for another Saturday update of activity at the Open Journal of Astrophysics. Since the last update we have published a further nine papers, bringing the number in Volume 9 (2026) to 145 and the total so far published by OJAp up to 593.

    I will continue to include the posts made on our Mastodon account (on Fediscience); these announcements also show the DOI for each paper.

    The first paper to report this week, published on Tuesday 7th July, is “The Information Content of Quasar Variability Light Curves: How Well Can we Infer Stochastic Model Parameters?” by Brendon Brewer (U. Auckland, NZ), Geraint F. Lewis (U. Sydney, AU), Xiang Yu & Yuan Li (Auckland). Published in the folder Astrophysics of Galaxies, this study suggests that quasar variability studies should focus on the short term volatility parameter, as it’s more informative than the variability timescale. Volatility decreases with redshift suggesting intrinsic effects.

    The overlay for this paper is here

    You can find the officially accepted version on arXiv here and the announcement on Fediverse here:

    https://fediscience.org/@OJ_Astro/116877118638227811

    The second paper for this week, also published on Tuesday 7th July, but in the folder High-Energy Astrophysical Phenomena, is “Cygnus X-3 as a PeVatron and the LHAASO 2025 data” by Michael Kachelriess & E. Lammert (NTNU, Trondheim, Norway). This paper suggests that the high-mass X-ray binary Cygnus X-3 can accelerate cosmic rays beyond PeV energies, contributing to a photon flux peaking around PeV energies.

    The overlay looks like this:

    The official version of the paper can be found on arXiv here and the Fediverse announcement here:

    https://fediscience.org/@OJ_Astro/116877369307135417

    The third paper of the week, also published on Tuesday 7th July, but in the folder Cosmology and Nongalactic Astrophysics is “The DESI DR1 Peculiar Velocity Survey: growth rate measurements from galaxy and momentum correlation functions” by Ryan J Turner (Swinburne Institute of Technology, Australia) and 63 others from around the world. This paper analyzes local peculiar velocity and galaxy density fields to test cosmological models of gravity, finding results consistent with predictions from Planck+ΛCDM cosmology and general relativity.

    The overlay for this one is here:

    The final, accepted version can be found on arXiv here and the Mastodon announcement is here:

    https://fediscience.org/@OJ_Astro/116877601913437714

    The fourth paper of the week, published on Wednesday 8th July in the folder Instrumentation and Methods for Astrophysics , is “Morphological Fingerprints of Forbush Decreases and Their Relation to Geomagnetic Storm Severity” by Juan Diego Perez Navarro and David Sierra Porta (Universidad Tecnológica de Bolívar, Colombia). This article introduces a graph-based method to analyze Forbush decreases (FDs), transient depressions in cosmic-ray flux, and uses network signatures to predict geomagnetic storm intensity.

    The overlay for this one is here:

    You can read the final version of this one on arXiv here and the Mastodon announcement is here:

    https://fediscience.org/@OJ_Astro/116837827227415689

    The fifth paper of the week, also published on Wednesday 8th July but in the folder Astrophysics of Galaxies, is “On the connection between galaxy orientation and halo absorption properties” by Rohan Venkat, Soo May Wee, and Hsiao-Wen Chen (U. Chicago, USA). This article investigates the azimuthal dependence of metal-line absorption in the circumgalactic medium of 87 isolated galaxies. The results show no significant correlation between absorption strength and azimuthal angle.

    The overlay for this one is here:

    You can read the final version of this one on arXiv here and the Mastodon announcement is here:

    The sixth paper of this week is “Searching for Periodicity in FRB 20240114A” by Jonathan I Katz (Washington U., USA). This was published on Thursday 9th July in the folder High-Energy Astrophysical Phenomena. The study described in this paper observed FRB 20240114A, an active Fast Radio Burst, but found no significant periodicity in its bursts, contradicting magnetar models predictions.

    The overlay for this one is here:

    You can find the final accepted version on arXiv here and the Mastodon announcement is here:

    https://fediscience.org/@OJ_Astro/116888362191860771

    The seventh article for this week is “Multiphase gas in Circumgalactic cloud complexes: Insights from kiloparsec-scale Magnetohydrodynamic Turbulence Simulations” by Rajsekhar Mohapatra (Princeton U., USA), Alankar Dutta (MPA Garching, Germany) and Prateek Sharma (Indian Institute of Science, Bangalore). This -paper was also published on Thursday 9th July, in the folder Astrophysics of Galaxies. This paper uses high-resolution simulations to investigate the mass distribution of the circumgalactic medium (CGM), a diffuse gas surrounding a galaxy’s halo with small-scale clumps of cold gas forming in quiescent regions.

    The overlay for this one is here:

    You can find the final accepted version of this one on arXiv here and the Mastodon announcement is here:

    https://fediscience.org/@OJ_Astro/116888423374478219

    The (penultimate) eighth article for this week is “Line-of-sight shear in SLACS strong lenses I: shear and mass model parametrisations” by Natalie B. Hogg (U. Cambridge, UK), Daniel Johnson (U. Montpellier, France), Anowar J. Shajib (U. Chicago, USA) and Julien Larena (Montpellier). This was also published on Thursday 9th July, but in the folder Cosmology and Nongalactic Astrophysics. This article studies models of 23 strong gravitational lenses to measure line-of-sight shear for the first time, providing potential new constraints on cosmological parameters.

    The overlay for this one is here:

    You can find the final accepted version on arXiv here and the Mastodon announcement is here:

    https://fediscience.org/@OJ_Astro/116888620656683811

    The ninth and last article for this week is “Current and future constraints on the expansion history of the GREA model” by Irene Graziotti (INAF-Osservatorio Astronomico di Capodimonte, Italy), Chiara De Leo (Sapienza University of Rome, Italy) and Matteo Martinelli (INAF-Osservatorio Astronomico di Roma, Italy). This study explores the General Relativistic Entropic Acceleration (GREA) framework, comparing it to the standard description of the universe. Current data favors the standard model, but GREA remains competitive.

    The overlay for this one is here:

    You can find the officially-accepted version on arXiv here and the Mastodon announcement here:

    https://fediscience.org/@OJ_Astro/116894079326256820

    As you can see, it has been a bumper week, especially when you consider that there was no arXiv mailing om Monday July 6th owing to the July 4th holiday in the USA. I should have known this would happen while I was travelling!

    #arXiv250116292v3 #arXiv251100229v2 #arXiv251203230v2 #arXiv251209075v2 #arXiv251218786v3 #arXiv251224936v3 #arXiv260216128v3 #arXiv260301934v2 #arXiv260601496v2 #AstrophysicsOfGalaxies #CircumgalacticMedium #cosmicRays #cosmologicalParameters #Cosmology #CosmologyAndNonGalacticAstrophysics #CygnusX3 #DESI #DiamondOpenAccess #DiamondOpenAccessPublishing #fastRadioBursts #ForbushDecreases #FRB20240114A #GalaxyShapes #GeneralRelativisticEntropicAcceleration #GeomagneticStorms #GREA #HighEnergyAstrophysicalPhenomena #InstrumentationAndMethodsForAstrophysics #lineOfSightShear #magnetohydrodynamicTurbulence #OpenAccess #OpenAccessPublishing #peculiarVelocities #pevatron #quasarVariability #quasars #SLACS #strongGravitationalLensing
  3. Regional and Seasonal Effects of #GeomagneticStorms on Terrestrial Weather: agupubs.onlinelibrary.wiley.co -> Powerful Solar Storms May Change Weather Patterns Across North America: unh.edu/news/powerful-solar-st - UNH scientist discovers the sun’s outbursts may briefly weaken rain and snow events.

  4. Regional and Seasonal Effects of #GeomagneticStorms on Terrestrial Weather: agupubs.onlinelibrary.wiley.co -> Powerful Solar Storms May Change Weather Patterns Across North America: unh.edu/news/powerful-solar-st - UNH scientist discovers the sun’s outbursts may briefly weaken rain and snow events.

  5. First Results of a New Inversion Tool for Thermospheric Neutral Mass Density Computations During Severe #GeomagneticStorms: agupubs.onlinelibrary.wiley.co -> Taking the Pulse of äAtmosphericDrag to Predict #satellite Trajectory: eos.org/editor-highlights/taki - scientists present a new method for estimating the density of the upper atmosphere to account for atmospheric drag when predicting satellite trajectory.

  6. First Results of a New Inversion Tool for Thermospheric Neutral Mass Density Computations During Severe #GeomagneticStorms: agupubs.onlinelibrary.wiley.co -> Taking the Pulse of äAtmosphericDrag to Predict #satellite Trajectory: eos.org/editor-highlights/taki - scientists present a new method for estimating the density of the upper atmosphere to account for atmospheric drag when predicting satellite trajectory.

  7. Universal Time Influence on Stormtime Magnetosphere Ionosphere Coupling: agupubs.onlinelibrary.wiley.co -> Timing of #GeomagneticStorms Shapes Their Impact: eos.org/editor-highlights/timi - the impact of geomagnetic storms, which can disrupt satellites, GPS, and power grids, is shown to depend on their onset timing.

  8. Universal Time Influence on Stormtime Magnetosphere Ionosphere Coupling: agupubs.onlinelibrary.wiley.co -> Timing of #GeomagneticStorms Shapes Their Impact: eos.org/editor-highlights/timi - the impact of geomagnetic storms, which can disrupt satellites, GPS, and power grids, is shown to depend on their onset timing.

  9. Assimilation of Ground and Satellite Magnetic Observations Unravels the Ionospheric, Magnetospheric, and Induced Fields During the May and October 2024 #GeomagneticStorms: agupubs.onlinelibrary.wiley.co -> How does an ice satellite detect a geomagnetic storm? esa.int/Applications/Observing

  10. Assimilation of Ground and Satellite Magnetic Observations Unravels the Ionospheric, Magnetospheric, and Induced Fields During the May and October 2024 #GeomagneticStorms: agupubs.onlinelibrary.wiley.co -> How does an ice satellite detect a geomagnetic storm? esa.int/Applications/Observing

  11. #Wikipedia - 2003 Halloween #SolarStorms

    "The Halloween solar storms were a series of solar storms involving solar flares and coronal mass ejections that occurred from mid-October to early November 2003, peaking around October 28–29. This series of storms generated the largest solar flare ever recorded by the GOES system, modeled as strong as X45 (initially estimated at X28 due to saturation of GOES' detectors).

    Effects On Earth

    "Satellite-based systems and communications were affected, aircraft were advised to avoid high altitudes near the polar regions, and a one-hour-long power outage occurred in Sweden as a result of the solar activity. Aurorae were observed at latitudes as far south as Texas and the Mediterranean countries of Europe. Twelve transformers in South Africa were disabled and had to be replaced, despite the country's low geomagnetic latitude.

    On satellites and spacecraft

    "The SOHO satellite failed temporarily and the Advanced Composition Explorer (ACE) was damaged by the solar activity. Numerous other spacecraft were damaged or experienced downtime due to various issues. Some of them were intentionally put into safe mode in order to protect sensitive equipment. Astronauts aboard the International Space Station (ISS) had to stay inside the more shielded parts of the Russian Orbital Segment to protect themselves against the increased radiation levels.

    "Emissions from the CME were later observed by the Mars Odyssey spacecraft orbiting Mars, Ulysses spacecraft near Jupiter, and the Cassini spacecraft en route to Saturn. In April 2004, Voyager 2 was also able to detect them as they reached the spacecraft."

    en.wikipedia.org/wiki/2003_Hal

    #SolarStorms #XFlares #GeomagneticStorms

  12. #Wikipedia - 2003 Halloween #SolarStorms

    "The Halloween solar storms were a series of solar storms involving solar flares and coronal mass ejections that occurred from mid-October to early November 2003, peaking around October 28–29. This series of storms generated the largest solar flare ever recorded by the GOES system, modeled as strong as X45 (initially estimated at X28 due to saturation of GOES' detectors).

    Effects On Earth

    "Satellite-based systems and communications were affected, aircraft were advised to avoid high altitudes near the polar regions, and a one-hour-long power outage occurred in Sweden as a result of the solar activity. Aurorae were observed at latitudes as far south as Texas and the Mediterranean countries of Europe. Twelve transformers in South Africa were disabled and had to be replaced, despite the country's low geomagnetic latitude.

    On satellites and spacecraft

    "The SOHO satellite failed temporarily and the Advanced Composition Explorer (ACE) was damaged by the solar activity. Numerous other spacecraft were damaged or experienced downtime due to various issues. Some of them were intentionally put into safe mode in order to protect sensitive equipment. Astronauts aboard the International Space Station (ISS) had to stay inside the more shielded parts of the Russian Orbital Segment to protect themselves against the increased radiation levels.

    "Emissions from the CME were later observed by the Mars Odyssey spacecraft orbiting Mars, Ulysses spacecraft near Jupiter, and the Cassini spacecraft en route to Saturn. In April 2004, Voyager 2 was also able to detect them as they reached the spacecraft."

    en.wikipedia.org/wiki/2003_Hal

    #SolarStorms #XFlares #GeomagneticStorms

  13. #SpaceWeather News for Dec. 7, 2025

    "A SOLAR STORM IS HEADING DIRECTLY FOR EARTH: Strong G3-class #GeomagneticStorms are possible on Dec. 9th when a full-halo #CME is expected to strike our planet. The storm cloud was hurled in our direction on Dec. 6th by an almost- #XClass #SolarFlare. Full story @ Spaceweather.com."

    spaceweather.com
    spaceweatheralerts.com

    #SolarStorms #GeomagneticStorm

  14. #SpaceWeather News for Dec. 7, 2025

    "A SOLAR STORM IS HEADING DIRECTLY FOR EARTH: Strong G3-class #GeomagneticStorms are possible on Dec. 9th when a full-halo #CME is expected to strike our planet. The storm cloud was hurled in our direction on Dec. 6th by an almost- #XClass #SolarFlare. Full story @ Spaceweather.com."

    spaceweather.com
    spaceweatheralerts.com

    #SolarStorms #GeomagneticStorm

  15. Solar flares, #sunspots, and geomagnetic storms—oh my! 🌞🔭 Apparently, we need a PhD in #Astrophysics just to understand this avalanche of jargon about cosmic burps. 🙄 After all, what's a little G4 storm when we're already drowning in acronyms? 🌌😂
    spaceweatherlive.com/en/news/v #SolarFlares #GeomagneticStorms #CosmicJargon #HackerNews #ngated

  16. Solar flares, #sunspots, and geomagnetic storms—oh my! 🌞🔭 Apparently, we need a PhD in #Astrophysics just to understand this avalanche of jargon about cosmic burps. 🙄 After all, what's a little G4 storm when we're already drowning in acronyms? 🌌😂
    spaceweatherlive.com/en/news/v #SolarFlares #GeomagneticStorms #CosmicJargon #HackerNews #ngated

  17. #solarycle25 can throw all the #solarfares #solarwinds #Geomagneticstorms it likes. BRING IT. First 3 days of sunrise #AmateurRadio #HamRadio #POTA #parksontheair #MorseCode CW activations on 40 meters. Most dots are contacts from same operators. Don't let #spacewx forecast stop you from operating.

  18. #solarycle25 can throw all the #solarfares #solarwinds #Geomagneticstorms it likes. BRING IT. First 3 days of sunrise #AmateurRadio #HamRadio #POTA #parksontheair #MorseCode CW activations on 40 meters. Most dots are contacts from same operators. Don't let #spacewx forecast stop you from operating.

  19. Toward a Unified Approach to Naming Space Weather Events: agupubs.onlinelibrary.wiley.co -> The Power of Naming Space Weather Events: eos.org/editor-highlights/the- - space scientists make the case for a standardized naming convention for #GeomagneticStorms, to increase public awareness and preparedness.

  20. Toward a Unified Approach to Naming Space Weather Events: agupubs.onlinelibrary.wiley.co -> The Power of Naming Space Weather Events: eos.org/editor-highlights/the- - space scientists make the case for a standardized naming convention for #GeomagneticStorms, to increase public awareness and preparedness.

  21. Your Smartphone Can Measure Solar Storms! ☀️🧲

    Industry researchers found a way to provide better global coverage of what dynamics are occurring in the turbulent ionosphere - a region of Earth's atmosphere that is affected by the Sun's activity. They did this by tapping into GPS signals transmitted between smartphones and satellites.

    Check out my latest #SpaceAustralia article here: spaceaustralia.com/news/your-s

    📸 Kast, Smith, Google Research Software Engineers

    #Geomagneticstorms #ionosphere #GPS #Astrodon #Science #Smartphones

  22. Your Smartphone Can Measure Solar Storms! ☀️🧲

    Industry researchers found a way to provide better global coverage of what dynamics are occurring in the turbulent ionosphere - a region of Earth's atmosphere that is affected by the Sun's activity. They did this by tapping into GPS signals transmitted between smartphones and satellites.

    Check out my latest #SpaceAustralia article here: spaceaustralia.com/news/your-s

    📸 Kast, Smith, Google Research Software Engineers

    #Geomagneticstorms #ionosphere #GPS #Astrodon #Science #Smartphones

  23. I think I've found the antenna that works for me during these #geomagneticstorms. @Buddipole Deluxe Antenna setup as a #buddistick for 40,30,20,17,15,12 and 10 meters makes a #Morsecode #POTA #parksontheair activation easy. Photo:20m setup.

  24. I think I've found the antenna that works for me during these #geomagneticstorms. @Buddipole Deluxe Antenna setup as a #buddistick for 40,30,20,17,15,12 and 10 meters makes a #Morsecode #POTA #parksontheair activation easy. Photo:20m setup.

  25. phys.org/news/2024-08-unpreced

    Among the collected data…a dramatic motion of the air away from the aurora causing the formation of enormous vortices that moved air in a spiral larger than a hurricane…

    "As the aurora intensifies, you see more lights, but along with that, there's more energy entering the atmosphere, so it makes the atmosphere near the poles very hot, which starts to push air away from the poles and towards the equator," so co-author, Virginia Tech's Scott England.

    #geomagneticstorms

  26. phys.org/news/2024-08-unpreced

    Among the collected data…a dramatic motion of the air away from the aurora causing the formation of enormous vortices that moved air in a spiral larger than a hurricane…

    "As the aurora intensifies, you see more lights, but along with that, there's more energy entering the atmosphere, so it makes the atmosphere near the poles very hot, which starts to push air away from the poles and towards the equator," so co-author, Virginia Tech's Scott England.

    #geomagneticstorms

  27. This is becoming like a soap opera. Minor G1 geomagnetic storm (Kp5) Threshold Reached: 14:45 UTC
    #solarcycle25 #spaceweather #spacewx #geomagneticstorm #geomagneticstorms #solarstorms #solarstorm #AmateurRadio #hamradio

    Geo Magnetic Strom Image courtesy: Spaceweatherlive.com

  28. This is becoming like a soap opera. Minor G1 geomagnetic storm (Kp5) Threshold Reached: 14:45 UTC
    #solarcycle25 #spaceweather #spacewx #geomagneticstorm #geomagneticstorms #solarstorms #solarstorm #AmateurRadio #hamradio

    Geo Magnetic Strom Image courtesy: Spaceweatherlive.com

  29. "Scientists at the Skolkovo Institute of Science and Technology (Russia), together with colleagues from the Leibniz Institute for Astrophysics (Germany), the University of Graz & the Kanzelhöhe Observatory (Austria), the University of Zagreb and Zagreb #Astronomical Observatory (Croatia) have developed a method to predict #GeomagneticStorms directly from #solar observations.

    The results make it possible to increase the lead warning times from hours to days. cont..."

    phys.org/news/2023-01-earlier-