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Earth, Planets and Space
Fig. 1 | Earth, Planets and Space

Fig. 1

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

Fig. 1

Definition of VLF bursty-patches at KAN. Power spectrum density at KAN on 1 October 2020 from 06:00 to 10:00 UT (07:30–11:30 MLT). Dashed and dotted horizontal white lines show, respectively, the local equatorial 0.5 fce and fce for the L-shell of KAN. VLF bursty-patches are observed at 2.7–4 kHz from ~ 06:00 to 07:10 UT, and at 3–9 kHz from ~ 06:50 to 09:30 UT

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