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单词 Dellinger effect
释义

Dellinger effect

英语百科

Sudden ionospheric disturbance

(重定向自Dellinger effect)

A 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.

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