Assessment of the Ionospheric and Tropospheric Effects in Location Errors of Data Collection Platforms in Equatorial Region during High and Low Solar Activity Periods

<table>VTECU maps on October 19 and 22, 2009 at 18 UT for minimum values of VTECU in low solar activity period (geographic equator in solid line and the magnetic equator in dashed line). Source: Produced by Leica Geosystems/GNSS QC software.</table>

Mathematical Problems in Engineering

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Figure 5

Figure 5: Assessment of the Ionospheric and Tropospheric Effects in Location Errors of Data Collection Platforms in Equatorial Region during High and Low Solar Activity Periods 

Figure 5 | Assessment of the Ionospheric and Tropospheric Effects in Location Errors of Data Collection Platforms in Equatorial Region during High and Low Solar Activity Periods 