Improvement of IRI B0, B1 and D1 at mid-latitude using MARP

E. Blanch, D. Arrazola, D. Altadill, D. Buresova, M. Mosert

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30 Citations (Scopus)


Comparative analysis of predicted parameters B0, B1 and D1 by IRI-2001model (International Reference Ionosphere) and those obtained from the Monthly Averaged Representative Profiles (MARP) at mid-latitude station shows significant disagreement. The linear coefficient of determination between the model-predicted and expected (MARP) values are about R 2 ∼ 0.45, 0.22, and 0.15 for B0, B1 and D1, respectively. A Local Model (LM) created using a general least-square fit to a harmonic function of these parameters obtained by MARP simulating the diurnal, semidiurnal and seasonal variations improves the linear coefficient of determination between the expected and IRI-predicted parameters by factor of two. The coefficients obtained from this model could be implemented into the IRI software to improve calculations of the parameters B0, B1 and D1.

Original languageEnglish
Pages (from-to)701-710
Number of pages10
JournalAdvances in Space Research
Issue number5
Publication statusPublished - 2007


  • Botomside electron density profiles
  • IRI B parameters modeling
  • Midlatitude ionosphere
  • Sunspot activity dependence


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