Abstract
A type I radio storm was observed simultaneously at 20 and 90 cm in November 1986. The characteristic signatures of the storm are detected at 90 cm only. The results indicate that the noise storm is unambiguously associated with an active region at the sun center, and that the distribution of energetic electrons responsible for the storm emission reaches low coronal heights. Polarization measurements and storm source location results suggest that the 90-cm emission is fundamental plasma radiation and that the 20-cm measurements are characteristic of free-free emission.
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