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Earth, Planets and Space
Fig. 2 | Earth, Planets and Space

Fig. 2

From: A review of unusual VLF bursty-patches observed in Northern Finland for Earth, Planets and Space

Fig. 2

Example of rounded VLF bursty-patches observed at KAN. Power spectrum density at KAN on 7 January 2020 from a 07:00 to 11:00 UT (08:30–12:30 MLT) and from b 07:37 to 07:42 UT, between 0 and 12 kHz. Dashed and dotted horizontal white lines show, respectively, the local equatorial 0.5 fce and fce for the L-shell of KAN. Three VLF bursty-patches are observed above 8 kHz from ~ 07:20 to 08:10 UT, ~ 09:10 to 09:40 UT and ~ 10:00 to 10:15 UT

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