Jisho

×
げんしょう 現象
Noun
1. Dellinger phenomenon
Wikipedia definition
2. Sudden ionospheric disturbanceA sudden ionospheric disturbance (SID) is an abnormally high ionization/plasma density in the D region of the ionosphere caused by a solar flare. The SID results in a sudden increase in radio-wave absorption that is most severe in the upper medium frequency (MF) and lower high frequency (HF) ranges, and as a result often interrupts or interferes with telecommunications systems.
Read “Sudden ionospheric disturbance” on English Wikipedia
Read “デリンジャー現象” on Japanese Wikipedia
Read “Sudden ionospheric disturbance” on DBpedia

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