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Earth, Planets and Space
Fig. 3 | Earth, Planets and Space

Fig. 3

From: New advantages of the combined GPS and GLONASS observations for high-latitude ionospheric irregularities monitoring: case study of June 2015 geomagnetic storm

Fig. 3

Examples of GPS and GLONASS measurements for two ground-based stations PFRR (65.1°N; 147.4°W) and MAC1 (54.5°S; 158.9°E) on the disturbed day of June 22, 2015: the distribution of IPP projections over a single station (left panel) with a black dot indicating the location of the station; the derived ROT variation (middle panel) and ROTI variation (right panel) along all visible satellites. GPS measurements are shown as blue, GLONASS measurements as red, while the left axis shows the satellite number (PRN)

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