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#magneticfield

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💧🌏 Greg Cocks

May’s Huge Geomagnetic Storm Created A Previously Unseen Vortex In Earth’s Atmosphere
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iflscience.com/mays-huge-geoma <-- shared technical article
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doi.org/10.1029/2024GL110632 <-- shared paper
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doi.org/10.1029/2024GL110506 <-- shared paper
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doi.org/10.1038/s41467-023-417 <-- shared paper
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#GIS #spatial #mapping #magneticstorm #spaceweather #model #modeling #geomagnetism #solar #sun #CME #coronalmassejection #solarflare #aurora #geophysics #GOLD #remotesensing #satellite #nasa #thermosphere #atmosphere #ionosphere #aircurrents #poles #earth #magneticfield #swirlypatterns #Equatorial #EIA #Ionization #Anomaly ##

graphic - The pathways of the main sources of plasma to the plasma sheet during southward IMF are illustrated in a schematic of Earth’s magnetosphere (based on Fig. 1 of ref. 1). The arrows represent the approximate paths of the different sources. Orange indicates the solar wind, coming in through the dayside magnetopause due to reconnection, and flowing along lobe field lines that convect to the plasma sheet. Green represents the hot outflow from the dayside (cusp) and nightside auroral regions. Blue represents the polar wind, outflowing from the polar cap. These sources mix in the plasma sheet with the contribution of the different sources changing with time.
image - Invisible 'swirly patterns' were detected in the thermosphere for the first time ever
graphics / global maps - GOLD Level 2 data showing temporal and spatial evolution of the thermosphere during the storm on May 11. The first and second rows are the 1356 Å and LBH absolute radiances used as input to the ΣO/N2 algorithm, while the last two rows show GOLD ΣO/N2 and TDISK values. Full disk images shown are combined individual north and south hemisphere scans. Times listed at the top of each row are the time the north hemisphere scan started. A scan beginning at 08:10 UT with minimal dayside data is not shown. The black line indicates the geomagnetic equator.
global map - mean total electron content (TEC; in log base 10 scale TECu) from 15:25–15:50 UT (25-min average) projected onto the geographic map. Notice the spatial morphology over South America that is also seen in ΣO/N2 and TDISK (see Figures 2 and 3). The structure is seen forming around 11:00 UT and is visible until about 18:00 UT... The magnetic equator (and ±15° magnetic latitudes) are shown in magenta for reference.
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Mark Wieczorek

Now that I have a new home on solarsystem.social, here's a new #introduction!

I am a #planetary scientist working at the Institut de Physique du Globe de Paris (#IPGP) in France. My research uses the #gravity field, #topography, and #MagneticField of the planets to decipher their internal structure and geologic evolution. My favorite terrestrial body is the #Moon, but I also work with #Mercury, #Venus, and #Mars. Soon I will need to learn about #Psyche and the icy satellites of #Jupiter!

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The #Nebra sky disk. This disk is about 30 cm in diameter and has been dated to the early bronze age at about 1800-1600 BCE. It represents the first depiction of the cosmos, and may represent a rudimentary calendar for predicting the solstices.
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DoomsdaysCW

Earth's Magnetic Field Booms Like a Drum, But No One Can Hear It

You may not be able to hear it, but Earth's magnetic shield booms like a drum when it's bombarded by strong impulses, including those from solar wind, a new study finds.

By Laura Geggel, July 06, 2022

"Every time an impulse strikes the shield's outer boundary — a region known as the magnetopause — jolts ripple through its surface and then are reflected back once they reach the magnetic poles, just like the face of a drum ripples as a percussionist beats it.

"Movements in the magnetopause can impact the flow of energy within Earth's space environment, Archer noted. For instance, the magnetopause can be impacted by solar wind, as well as charged particles in the form of plasma that blow off the sun. These interactions with the magnetopause, in turn, have the potential to damage technology, including power grids and GPS devices."

#SolarFlares #MagneticField #Sun #Earth #SolarWind #magnetopause

space.com/earth-magnetic-field

SpaceEarth's Magnetic Field Booms Like a Drum, But No One Can Hear ItBy Laura Geggel
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Mark Wieczorek

With the influx of new mastodon users, here's an #introduction so that people can find me!

I am a #planetary scientist working at the Institut de Physique du Globe de Paris (#IPGP) in Paris, France. My research involves using the #gravity field, #topography, and #MagneticField of the planets to decipher their internal structure and evolution. Most of my work has been with the #Moon and #Mars, but I also dabble with #Mercury, #Venus, and sometimes the #asteroids and icy satellites of #Jupiter.

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