• Miljana Todorović Drakul University of Belgrade
  • Sanja Grekulović University of Belgrade
  • Oleg Odalović University of Belgrade,
  • Dušan Petković University of Belgrade



In this paper, a comparative study of the total vertical electron content (VTEC) calculated using the IRI-2016 and NeQuick2 models were performed. The research was done for the days of maximum solar activity in 2019, with data from seven IGS GNNS stations in the region of the Balkan Peninsula. The results show that both models agree quite well with the observed VTEC values obtained from GNSS measurements at all stations, although with some offset observed during several days at different times. The IRI-2016 model performed better than the NeQuick2 model most of the days and stations for which the NeQuick model overestimates the GNSS VTEC. The results show that the Neckick model gives better quality values in some cases, but for isolated instances.


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How to Cite

M. Todorović Drakul, S. Grekulović, O. Odalović, and D. Petković, “COMPARISON OF IRI-2016 AND NEQUICK MODELS OF THE IONOSPHERE OVER THE BALKAN PENINSULA DURING THE YEAR 2019”, STEPGRAD, vol. 1, no. 15, pp. 283-293, Aug. 2022.
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