Evaluation of a global model of ionospheric slab thickness for foF2 estimation during geomagnetic storm

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Published: Nov 11, 2015
DOI: https://doi.org/10.4401/ag-6721
Keywords:
Ionosphere, Model, TEC, Slab thickness, foF2, Ionospheric storm

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Buldan Muslim
Space Science Center, LAPAN, Bandung, West Java,
Haris Haralambous
Frederick University, Nicosia,
Christina Oikonomou
Frederick University, Nicosia,
Sefria Anggarani
Space Science Center, LAPAN, Bandung, West Java,

Abstract

This study aims to evaluate the performance of the global model of ionospheric slab thickness (GMIST) in terms of F2 layer critical frequency (foF2) estimation during geomagnetic disturbed conditions. Hourly values of foF2 as obtained from ionosonde stations located at equatorial, low- and mid-latitude regions are compared with the corresponding GMIST and IRI-STORM modeled values. For this purpose, the correlation coefficient, daily mean, root mean square error and improvement percentage are calculated at different regions and geomagnetic disturbance levels. The results show that GMIST is more accurate than IRI-STORM model in terms of foF2 estimation at low- and mid-latitude regions, while at equatorial areas GMIST is less accurate during geomagnetically disturbed and quiet conditions.

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How to Cite
Muslim, B., Haralambous, H., Oikonomou, C. and Anggarani, S. (2015) “Evaluation of a global model of ionospheric slab thickness for foF2 estimation during geomagnetic storm”, Annals of Geophysics, 58(5), p. A0551. doi: 10.4401/ag-6721.
Issue
Vol. 58 No. 5 (2015)
Section
Physics of the Atmosphere

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