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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Dataset Last Updated: January 01, 1964 at 12:00 AM

Absorption of radio waves occurs when electrons responding to the wave fields collide with and transfer energy to the neutral particles. A study of ionospheric absorption yields information on...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Dataset Last Updated: January 01, 1958 at 12:00 AM

Sudden ionospheric disturbances (SID) are caused by solar flare enhanced X-rays in the 1 to 10 angstrom range. Solar flares can produce large increases of ionization in the D-region of the...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Dataset Last Updated: January 01, 1981 at 12:00 AM

The ionosphere is that part of the Earth's atmosphere that results mainly from the photo ionization of the upper atmosphere. Traditionally, the following ionospheric regions and their approximate...

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