The impact of solar eclipses on the structure and dynamics of Earth’s upper atmosphere

Solar eclipses can have a noticeable impact on the structure and dynamics of Earth’s upper atmosphere—the ionosphere. This is primarily due to the sudden reduction in solar radiation reaching the Earth’s atmosphere during the eclipse. Since the ionosphere contains charged particles (ions and electrons) and is responsible for reflecting and refracting radio waves, changes to the ionosphere can also affect radio communications and navigation systems.

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