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Fig. 1.


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The climatology map of the GPS phase scintillations for all observations from January 2010 to December 2017 from Ny-Ålesund in MLAT and MLT coordinates. The data are divided into bins defined by 1 h in MLT and by 2° in MLAT. The Feldstein auroral oval (IQ = 3) is plotted in each panel by red lines. The MLAT (76.6°) of Ny-Ålesund is shown by a thick white circle. (a) The number of data points in each bin. The occurrence rate for weak (b), intermediate (c), and strong (d) GPS phase scintillations.

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