Abstract:<p>The International GNSS Service (IGS) global ionospheric maps (GIMs) are one of the primary sources of information on the ionospheric state. They are used in many research and GNSS positioning applications. IGS GIMs are created using the weighted average of the products derived from the selected IAAC. This method allows for efficient mapping of the state of the ionosphere, especially on days without major disruptions. However, ionospheric disturbances could be more problematic to map correctly.… Show more
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