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Earth, Planets and Space
Fig. 7 | Earth, Planets and Space

Fig. 7

From: On using a double-thin-shell approach and TEC perturbation component to sound night-time mid-latitude E–F coupling

Fig. 7

Ionogram observed by Kokubunji ionosonde (a, b), and snapshots of TECP maps at E shell height (c, d) at 20:15 and 22:15 JST on 23 June 2012 (DOY 175). Black triangle represents the location of Kokubunji ionosonde. (e) The variation of the \(foEs\) obtained from ionosonde observations (\(foEs(obs)\)) and reconstructed TECPs (\(foEs(rec)\); a 2 km thickness is assumed) at Kokubunji area during 20:00–22:30 JST

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