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

• Published in: Advances in space research Vol. 39; no. 5; pp. 701 - 710
• Main Authors: Blanch, E., Arrazola, D., Altadill, D., Buresova, D., Mosert, M.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 2007
• Subjects: Botomside electron density profiles; IRI B parameters modeling; Midlatitude ionosphere; Sunspot activity dependence; Sunspot activity dependence; Botomside electron density profiles; IRI B parameters modeling; Midlatitude ionosphere
• ISSN: 0273-1177; 1879-1948
• DOI: 10.1016/j.asr.2006.08.007

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 R2∼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.