Exploring the Ionosphere: The Dayside Ionosphere

  • Released Thursday, October 27, 2016
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The colors over Earth represent model data from the IRI (International Reference Ionosphere) model of the density of the singly-ionized oxygen atom at an altitude of 350 kilometers. Red represents high density. The ion density is enhanced above and below the geomagnetic equator (not perfectly aligned with the geographic equator) on the dayside due to the ionizing effects of solar ultraviolet radiation combined with the effects of high-altitude winds and the geomagnetic field. This ion density decreases at night as the ions recombine with free electrons.



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NASA's Scientific Visualization Studio

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This page was originally published on Thursday, October 27, 2016.
This page was last updated on Saturday, June 22, 2024 at 12:09 AM EDT.


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