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Fig. 4 | Earth, Planets and Space

Fig. 4

From: Concurrent effects of Martian topography on the thermosphere and ionosphere at high northern latitudes

Fig. 4

Analysis for the longitude wave components of hmM2, NmM2, and Hn. a shows longitude variation of the hmM2 at 64°N. The gray dots are gridded hmM2; the solid line is the Fourier fitting; the dashed lines indicate the corresponding 1-σ error. b presents latitude variations of the 1-σ errors of hmM2, NmM2, and Hn fittings. c is latitudinally averaged amplitudes of the longitude wave − 1 to − 6 in hmM2, NmM2, and Hn

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