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\nSupercharging the Radiation Belts\n

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\n\nPublisher:\n\nNASA\n\n\n
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\nOn March 17, 2015, an interplanetary shock – a shockwave created by the driving force of a coronal mass ejection, or CME, from the sun – struck the outermost radiation belt, triggering the greatest geomagnetic storm of the preceding...\nOn March 17, 2015, an interplanetary shock – a shockwave created by the driving force of a coronal mass ejection, or CME, from the sun – struck the outermost radiation belt, triggering the greatest geomagnetic storm of the preceding decade. NASA's Van Allen Probes were there to watch it.

One of the most common forms of space weather, a geomagnetic storm describes any event in which Earth’s magnetic environment – called the magnetosphere – is suddenly, temporarily disturbed. Such an event can also lead to change in the radiation belts surrounding Earth, but researchers have seldom been able to observe what happens within the first few minutes immediately following a shock.

On the day of the March 2015 geomagnetic storm, one of the Van Allen Probes was located at just the right spot within the radiation belts, providing unprecedentedly high-resolution data from a rarely witnessed phenomenon. A paper on these observations was published in the Journal of Geophysical Research on Aug. 15, 2016.

Credit: NASA’s Goddard Space flight Center/Genna Duberstein

Music: Light Hearted Angst by Dewey Dellay


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Media Length
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1:31
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Grade
3rd - 11th
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Subjects
Science
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Source:
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\nNASA Goddard\n\n
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Date
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2016
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Language
English
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For Teacher Use
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nasa, satellites, particles, radiation
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electron, radiation belts, space weather, heliophysics, van allen belts, van allen probes, genna duberstein, nasa goddard, goddard space flight center, interplanetary shock, region, magnetosphere
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