J. Space Weather Space Clim.
Volume 10, 2020
Topical Issue - Scientific Advances from the European Commission H2020 projects on Space Weather
|Number of page(s)||17|
|Published online||05 August 2020|
Two Juliusruh ionograms for the disturbed evening hours on 08th September 2017. Both ionograms came out with wrong autoscaling results and derived electron density profiles but are able to be manually scaled with reasonable results. – The upper ionogram (17:53UT) shows a) spread echoes between ~3 and >4MHz, which corresponds to a Frequency Spread parameter FF ~1MHz and b) non-vertical or oblique echoes (>15° off-zenith) marked as coming from south directions (see right color legend).
Movie_S1Wave-like ionospheric perturbation observed on 8th September 2017 after 11 UT.
© A.A. Ferreira et al., Published by EDP Sciences 2020
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