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#ionosphere

3 posts3 participants0 posts today
Public
Daniel Fischer

Mapping the ionosphere with millions of phones: nature.com/articles/s41586-024 -> Industry researchers have found a powerful new approach to measure variations in Earth’s upper atmosphere using everyday smartphone technology: spaceaustralia.com/news/your-s - GPS signals exchanged between satellites and Android devices now offer unprecedented insights into Earth’s turbulent #ionosphere dynamics.

NatureMapping the ionosphere with millions of phones - NatureData from millions of smartphones are used to map the ionosphere in greater detail, leading to improved smartphone location accuracy, particularly in parts of the world with few monitoring stations.
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CosmicRami

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
Public
HamConBE conference

Ladies and Gentlemen, now it is official:

The list of presentations of #HamConBE 25

hamcon.be/

#hamradio: promotion, ARDF and Digital voice

#radiotechnology : tracking asian hornet, #emc #sdr and #meshtastic

Radio is #science and #space : #ionosphere research using #sat , #radioastronomy and #weatherradar

Workshop: #TinyGS

So there is something for everybody!

register here:
hamcon.be/event/hamcon-2025/

#hamConBE25
26 April 2025
Leuven, #belgium

hamcon.beHamCon Belgium
Public
Mikko Tuomi

Callisto's #ionosphere alone cannot explain all existing magnetic measurements, but that a subsurface #ocean in combination with the ionosphere can.

The ocean is likely at least tens of kilometers thick, as measured from the top of the liquid ocean to its seafloor, and encased beneath a solid ice shell that itself could range from tens to hundreds of kilometers thick.

Beneath the probable ocean lies a rocky interior.

#astrobiology #Callisto
phys.org/news/2025-02-jupiter-

Phys.org · Jupiter's moon Callisto is very likely an ocean worldBy Sarah Stanley
Public
CosmicRami

Whoa! 🚀💥

Starship's explosion put a 1-hour hole in the ionosphere.

GPS data (multi-frequency) tells us about the total electron content (TEC) in the ionosphere (varies naturally). But the shock wave from this explosion caused a temporal depletion of TEC, as measured from 2500 ground stations.

nature.com/articles/d41586-024

This adds to the growing need for a better understanding of rockets' impacts in the high atmosphere. We don't have the modelling yet, and more and more rockets are going up each year.

Read the paper findings here: agupubs.onlinelibrary.wiley.co

www.nature.comHuge SpaceX rocket explosion shredded the upper atmosphereObservations highlight threats to GPS and similar systems from natural as well as human-caused disturbances.
#Rockets#SpaceX#Starship
Public
JuneSim63

The huge explosions that destroyed SpaceX’s Starship mega-rocket last year also blew one of the biggest ‘holes’ ever detected in the ionosphere, a layer of thin air in the upper atmosphere. The hole stretched for thousands of kilometres and persisted for nearly an hour.

#SpaceX #ElonMusk #Ionosphere #Rockets

nature.com/articles/d41586-024

www.nature.comHuge SpaceX rocket explosion shredded the upper atmosphereObservations highlight threats to GPS and similar systems from natural as well as human-caused disturbances.
Public
NASA

NASA Discovers a Long-Sought Global Electric Field on Earth science.nasa.gov/science-resea #NASA #GoddardSpaceFlightCenter #Heliophysics #HeliophysicsDivision #Ionosphere #ScienceResearch #SoundingRockets #SoundingRocketsProgram

science.nasa.govNASA Discovers a Long-Sought Global Electric Field on Earth - NASA ScienceAn international team of scientists has successfully measured a planet-wide electric field thought to be as fundamental to Earth as its gravity and magnetic fields. Known as the ambipolar electric field, scientists first hypothesized over 60 years ago that it drove atmospheric escape above Earth’s North and South Poles. Measurements from a suborbital rocket have confirmed the existence of the ambipolar field and quantified its strength, revealing its role in driving atmospheric escape and shaping our ionosphere — a layer of the upper atmosphere — more broadly. The paper was published today in the journal Nature.
Public
💧🌏 Greg Cocks

May’s Huge Geomagnetic Storm Created A Previously Unseen Vortex In Earth’s Atmosphere
--
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.
Public
Daniel Fischer

New Regime of Inertial Alfvén Wave Turbulence in the Auroral #Ionosphere: journals.aps.org/prl/abstract/ -> NASA Rocket Discovers New Energization Process in Upper Atmosphere: science.nasa.gov/science-resea

Physical Review Letters · New Regime of Inertial Alfv\'en Wave Turbulence in the Auroral IonosphereData analysis from the TRICE-2 sounding rocket in the auroral ionosphere revealed a regime of inertial Alfv\'en wave turbulence with properties distinct from heliospheric and solar wind plasma turbulence that allows the identification of features related to ionospheric plasma and turbulence cascade which are difficult to access in the laboratory.
Public
Matt Willemsen

Astronomers Have a New Way to Bypass Earth's Atmosphere
universetoday.com/167250/astro #astronomy #Earth #atmosphere #observation #calibration #ionosphere #superterp

Universe Today · Astronomers Have a New Way to Bypass Earth's AtmosphereRadio telescopes have an advantage over optical telescopes, in that radio telescope can be used even in cloudy conditions here on Earth. That’s because the longer wavelengths of radio waves can pass through clouds unhindered. However, some wavelengths are still partially obscured by portions of Earth’s atmosphere, especially by the ionosphere which traps human-made Radio … Continue reading "Astronomers Have a New Way to Bypass Earth's Atmosphere"
Public
NASA

How NASA Tracked the Most Intense Solar Storm in Decades science.nasa.gov/science-resea #NASA #Auroras #CitizenScience #GoddardSpaceFlightCenter #Heliophysics #HeliophysicsDivision #ICESat2IceCloudAndLandElevationSatellite2 #Ionosphere #Mesosphere #ScienceResearch #ScienceMissionDirectorate

science.nasa.govHow NASA Tracked the Most Intense Solar Storm in Decades - NASA ScienceDuring the first full week of May, a barrage of large solar flares and coronal mass ejections (CMEs) launched clouds of charged particles and magnetic fields toward Earth, creating the strongest solar storm to reach Earth in two decades — and possibly one of the strongest displays of auroras on record in the past 500 years.
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