AKR signal increases caused by triggering

Abstract
This paper presents a study of the amplitude increases which accompany the triggering of auroral kilometric radiation (AKR) by Type‐III solar radio bursts. IMP‐8 data were used to determine the signal increases observed during one‐hour periods before and after Type‐III bursts at 100 kHz, 178 kHz and 500 kHz and these were compared with similar observations when the Type‐III bursts were absent. The results indicate that between 8 to 16% of the Type‐III bursts caused statistically significant intensity increases and that infrequent large signal increases of sometimes 20 dB or more tended to characterize the triggered AKR, rather than a large proportion of small increases.