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Fig. 2 | Earth, Planets and Space

Fig. 2

From: Three-dimensional electron density along the WSA and MSNA latitudes probed by FORMOSAT-3/COSMIC

Fig. 2

Upper panels are the altitude variations of the F3/C N within 40–80° S geographic at various global fixed local times in the 4 months. Bottom panels are extracted from the 300-km altitude N at 60° S geographic. Black circle-dots and circle-crosses and arrows denote the longitudinal equatorward and poleward maximum effect U and vertical effect W at 75° S geographic, respectively. White dots are the longitudinal maxima N M at 300-km altitude in the D-month. The two segmented eastward phase shifts 167 and 296 m/s are computed by averaging three-time-point fitting shift by 1 point over the period of 1700–0300 LT and 0300–1700 LT, respectively

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