Journal
ADVANCES IN SPACE RESEARCH
Volume 39, Issue 5, Pages 701-710Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.asr.2006.08.007
Keywords
midlatitude ionosphere; botomside electron density profiles; IRI B parameters modeling; sunspot activity dependence
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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 similar to 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. (c) 2006 COSPAR. Published by Elsevier Ltd. All rights reserved.
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