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During the Halloween storms, observations showed that there was significant erosion of the plasmasphere.
FORBES: A Powerful Solar Storm Could Render Satellites Inoperable For Years
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The Radio Plasma Imager instrument provides a three-dimensional view of the plasmasphere by sounding it with radio pulses, like an ultrasound image of the human body.
BBC: Atmosphere Nasa
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When the plasmasphere gets hit, some of the plasma dissipates, making it smaller, but that dissipation prevents too much intense radiation from hitting the inner belt.
FORBES: A Powerful Solar Storm Could Render Satellites Inoperable For Years
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Based on observational data of solar storms, the radiation belts, and the plasmasphere during past years, the authors were able to successfully model the Halloween solar storm.
FORBES: A Powerful Solar Storm Could Render Satellites Inoperable For Years
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The Extreme Ultraviolet Imager instrument on Image is capturing the first global images of the plasmasphere, a tenuous extension of the Earth's electrically charged upper atmosphere, or ionosphere.
BBC: Atmosphere Nasa
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The plasmasphere extends about 20, 000 km (12, 500 miles) into space.
BBC: Atmosphere Nasa
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When the Carrington storm was modeled, the results showed that the plasmasphere was eroded to the point that much more radiation reached the inner belt than is normally the case.
FORBES: A Powerful Solar Storm Could Render Satellites Inoperable For Years