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 ionosphere

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updated Thu. February 21, 2019

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At the boundary between Earth's atmosphere and space, the charged particles, part of the upper atmosphere – called the ionosphere – co-exist with the upper reaches of the neutral atmosphere, called the thermosphere. The two commingle and influence one another constantly. This interplay – and the role ...
For the first time, NASA has launched an instrument as a commercially hosted payload, as part of a mission to study weather patterns in the boundary of space and the uppermost atmosphere. On January 25, NASA launched the Global-scale Observations of the Limb and Disk (GOLD), a hosted payload ...

At the boundary between Earth's atmosphere and space, the charged particles —called the ionosphere—co-exist with the upper reaches of the neutral atmosphere, called the thermosphere. The two commingle and influence one another constantly. This interplay—and the role terrestrial weather, space ...
It's long been predicted that a solar eclipse would cause a bow wave in Earth's ionosphere. The August 2017 eclipse—called the “Great American Eclipse” because it crossed the continental US— gave scientists a chance to test that prediction. Scientists at MIT's Haystack Observatory used more than 2,000 ...
The ionosphere is the layer of the atmosphere containing charged particles created primarily by solar radiation. It allows long-distance radio wave propagation and communication over the horizon and affects essential satellite-based transmissions in navigation systems and on-board aircraft. Since the ...
What GOLD learns will help scientists better predict how the ionosphere responds to certain types of natural phenomena or events — such as the bombardment of particles streaming from the Sun, tsunamis, or hurricanes. GOLD won't be alone in learning all this: another NASA mission called ICON will ...

Above the ozone layer, the ionosphere is a part of Earth's atmosphere where particles have been cooked into a sea of electrically-charged electrons and ions by the Sun's radiation. The ionosphere is comingled with the very highest—and quite thin—layers of Earth's neutral upper atmosphere, making this ...
Earth's ionosphere, where incoming cosmic and solar rays interact with the atmosphere to create charged particles, extends from about 75 to about 1,200 kilometers above the planet's surface. From its geostationary orbit 35,000 kilometers high, GOLD will monitor the ionosphere's density and temperature ...
Earth-bound radio telescopes encounter too much interference from electromagnetic pollution caused by human activity, such as maritime communication and short-wave broadcasting, to get a clear signal, and Earth's ionosphere blocks the longest wavelengths from reaching these scopes in the first place.
The Earth's magnetic fields extend to the ionosphere—a layer of plasma and neutral gases about 50–500 kilometers above Earth's surface—and the magnetosphere, which starts at the outer edges of the ionosphere and stretches many thousands of miles into space. Magnetic fields from Earth and the Sun ...
“Cassini was never designed to go into Saturn's ionosphere, yet we were able to make measurements there and I'm confident that over the next year and the next ... Kurth, in collaboration with colleagues around the world, will continue releasing their findings about Saturn's ionosphere later this year.
Data returned by NASA's Cassini spacecraft show Saturn's ionosphere, the electrically charged region of its atmosphere, to be far more complex and ... Cassini's science instruments conducted the first ever closeup measurements of Saturn's ionosphere, which had previously been studied only from a ...
This image shows Cassini's last two orbital phases. The ring-grazing orbits are shown in gray (far left), while the Grand Finale orbits — during which Cassini's collected unprecedented measurements of Saturn's ionosphere — are shown in blue. The orange line shows Cassini's final plunge into Saturn on ...
In a study published yesterday in the journal Science, researchers using Cassini's RPWS data showed that Saturn has a cold, compact, and dynamic ionosphere with a density that can vary by as much as a factor of 100. Furthermore, the researchers found that Saturn's enormous and opaque rings cast ...
Some of those orbits took the spacecraft directly into Saturn's ionosphere, a layer of charged particles in the upper atmosphere. The charged particles are mostly the result of ultraviolet radiation from the sun separating electrons from atoms. Jan-Erik Wahlund of the Swedish Institute of Space Physics in ...
The teams were measuring the effects of the total solar eclipse on Earth's ionosphere — the part of Earth's atmosphere where many satellites orbit, and ... of the sun's atmosphere in order to better predict space weather, which can affect earth systems, like radio waves in the ionosphere studied by Earle.
In a study published earlier this week in the journal Geophysical Research Letters, scientists from the Massachusetts Institute of Technology's Haystack Observatory and Norway's University of Tromso presented the “first unambiguous evidence” of bow waves in Earth's upper atmosphere, or ionosphere, in ...

The August 21 solar eclipse caused waves in the uppermost part of the atmosphere, the ionosphere, which researchers say they were able to observe for the first time. The eclipse across North America was seen by millions of people, as well as by 2,000 positioning sensors installed across its path on Earth ...
"The medium waves range does not depend on the ionosphere - the wave "sticks" to the ground and moves along it covering big distances," he ...
However, a new publication by Li et al. shows that “cold” plasma from the planet's ionosphere may play a larger role than previously thought.
Because the ionosphere reflects radio waves and changes their properties, its study had wide-ranging implications for many practical fields of ...
Controversial observations of long-term changes in the ionosphere appear to be explained by the Sun's 11-year cycle of activity, not human ...
These anomalies, resulting from the depletion of electrons in the Earth's ionosphere – a highly conducting, ionized region of the atmosphere ...
And by the time it was dark enough, the ionosphere had deteriorated too much, with relatively few electrons per cubic centimeter. Fallen wasn't ...
To better understand the relationship between the ionosphere and the layers of the atmosphere extending below it all the way to the surface of ...
The particles of the ionosphere carry electrical charge that can disrupt communications signals, cause satellites in low-Earth orbit to become ...
The particles of the ionosphere carry electrical charge that can disrupt communications signals, cause satellites in low-Earth orbit to become ...
This thin, upper layer of our atmosphere is called the ionosphere, and it's mostly filled with electrified plasma. Even though it's a part of our ...
... injects high-frequency anti-matter particles into the ionosphere. These particles are alleged to change the jet stream, and with this change, ...
Professional ionospheric researcher Dr. Phil Erickson, W1PJE, head of the Atmospheric Sciences Group at MIT's Haystack Observatory ...
Professional ionospheric researcher Phil Erickson, W1PJE, of the Atmospheric Sciences Group at MIT's Haystack Observatory, said he can say ...
A new hypothesis explains the radar signature of plasma waves in Earth's ionosphere Puerto Rico's massive Arecibo Observatory, 305 meters ...
GPS signals are routinely used to monitor the behavior of the ionosphere. The density of electrons in the ionosphere affects the speed of ...
The Waves and Instabilities from a Neutral Dynamo, or WINDY, mission will study a phenomenon that occurs in the ionosphere - a layer of ...
Sunlight strips electrons from atoms in Earth's atmosphere. This process creates a charged layer called the ionosphere. But during a solar ...
They will use a GPS antenna on top of Kinard Hall to monitor the ionosphere, the layer of Earth's atmosphere that is charged by solar and ...
The Ionospheric Connection Explorer (ICON) satellite aims to explore Earth's ionosphere and thermosphere and is expected to be launched in November 2017.
A team led by Haystack Assistant Director Phil Erickson will investigate the effects of the eclipse on the Earth's ionosphere, using the National ...
DOWN FROM ABOVE Sunlight strips electrons from atoms in the atmosphere, creating a charged layer called the ionosphere. But that process ...
21, Nathaniel Frissell will be stationed directly along the shadow's path, leading one of the largest ionospheric experiments in the history of ...
In addition to the stunning visual display, the eclipse will have a significant impact on the Earth's ionosphere. An electrically charged portion of ...
“The thickness of the layer (the ionosphere) will change during the day. The layer will get thinner at night because there is less solar activity.”.
Mrak said the goal of the project is to confirm that a network of cellphone-class GPS receivers can record waves in the ionosphere generated by ...
Pinning down ionospheric dynamics can be tricky. "Compared to visible light, the Sun's extreme ultraviolet output is highly variable," said Phil ...
Hovering about 50 miles over the surface of the planet, the ionosphere serves in part to bounce low-frequency radio waves back to Earth.
The ionosphere is only very charged during the daytime, when energy from the sun and its corona feed extreme ultraviolet photons into this ...
SPORT will be designed and launched as a CubeSat in a push to monitor changes in the ionosphere, study the causes, predict and mitigate ...
A new study finds that the ionospheric anomaly over the Weddell Sea is likely influenced by proximity to auroral energy input, rather than by ...
Two phenomena in the ionosphere - equatorial plasma bubbles and scintillation - have impacted radio communication systems, satellite ...
GPS signals may be affected by the eclipse because they travel through the ionosphere. According to gps.gov, GPS signals are transmitted ...


 

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