Ground-Based GNSS Data for the Ionosphere Model Correction at High-Latitudes

The preliminary results of the ionosphere model correcting method using slant TEC data were presented. We compared model results and observation data of the vertical sounding stations in Sodankyla (high-latitudes). We used two models: IRI-Plas and NeQuick. It was shown that the proposed method needs improving, the correcting data should be enlarged and additional tools for more accurate model updating should be added.