A substorm related chorus event (SCE, see Smith, 1996b) is seen in the 0505, 0520, 0535 UT frames. A hiss band with a rising upper cutoff frequency appears from 1035 UT to the end of the plot.
| "Quicklook" summary plot of the broadband data from Halley
00-12UT, 15 May 1994. !-minute low resolution 0-8kHz
spectrograms are plotted for every 15 minutes from 0005-0006
UT until 1150-1151 UT. In this plot the sporadic curved
traces are whisters. A substorm related chorus event (SCE, see Smith, 1996b) is seen in the 0505, 0520, 0535 UT frames. A hiss band with a rising upper cutoff frequency appears from 1035 UT to the end of the plot. |
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