Sudden ionospheric disturbances

...The abnormal increase in electron density in the lower ionosphere caused by a flare causes a series of disturbances, such as abnormal absorption of shortwave radio waves, sudden changes in the receiving frequency of shortwave radio waves, and sudden changes in the receiving phase of longwave and very longwave radio waves. The series of ionospheric disturbances caused by a flare, including the Dellinger phenomenon, are collectively called sudden ionospheric disturbances. [Nobuo Matsuura]...

*Some of the terminology used to refer to "sudden ionospheric disturbances" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…フレアにともなう電離圏下部の電子密度の異常増加は，短波の異常吸収のほか，短波の受信周波数の急変，長波･超長波帯電波の受信位相の急変など一連のじょう乱現象を起こす。デリンジャー現象を含めて，フレアにともなう一連の電離圏異常現象を総称して急始電離圏じょう乱sudden ionospheric disturbancesとよぶ。【松浦 延夫】。…

※「急始電離圏じょう乱」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報