Fig. 5 | Scientific Reports

Fig. 5

From: Strong turbulent flow in the subauroral region in the Antarctic can deteriorate satellite-based navigation signals

Fig. 5

DMSP F-18 and NorSat-1 satellites measurement. (a) Dynamics of the horizontal ion drift velocity (red line), vertical ion drift velocity (purple line) and electron density (blue line) depending on geomagnetic latitude (upper abscissa, 350 km projection) and UT time (bottom abscissa) according to DMSP F-18 at 20 UT 18.03.2018. PJ/SAID is shown with a blue area. (b) Dynamics of the ion temperature (red line), electron temperature (blue line), and MLT (purple line) according to DMSP F-18 at 20 UT 18.03.2018. (c) Dynamics of the electron temperature (red line) and electron density (blue line) depending on geomagnetic latitude (upper abscissa, 350 km projection), and UT time (bottom abscissa) according to NorSat-1 at 21 UT 18.03.2018. (d) Power spectrogram obtained using the discrete Fourier transform of the electron density data. (e) Power spectrogram obtained using the discrete Fourier transform of the electron temperature data. (f) Spectral power of electron density inside PJ/SAID as a function of spatial wave number. (g) Spectral power of electron temperature inside PJ/SAID as a function of spatial wave number.

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