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Earth, Planets and Space
Fig. 6 | Earth, Planets and Space

Fig. 6

From: Statistical study of medium-scale traveling ionospheric disturbances in low-latitude ionosphere using an automatic algorithm

Fig. 6

A comparison between propagation direction and normalized PSD of MSTIDs with a dusk terminator (black line) over Taiwan. The southwestward MSTIDs (deep blue color) in the years a 2013, b 2014, c 2015 is in good agreement with the PSD with greater value (red color) in d 2013, e 2014, f 2015, suggesting that the southwestward MSTIDs have greater amplitudes than those propagating in other directions

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