Topside electron density: comparison of experimental and IRI model profiles during low solar activity period

The pattern of the topside electron density profiles is not yet very well represented by the IRI model. In this work the topside profiles obtained by the ISIS-2 satellite during low solar activity conditions are compared to those modeled by IRI. We take the quantitative parameter epsilon to measure...

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Detalles Bibliográficos
Autores principales: Alazo, K, Coisson, P, Radicella, S M
Lenguaje:eng
Publicado: Trieste Univ. Abdus Salam Int. Centre Theor. Phys. 2002
Materias:
Acceso en línea:http://cds.cern.ch/record/746995
Descripción
Sumario:The pattern of the topside electron density profiles is not yet very well represented by the IRI model. In this work the topside profiles obtained by the ISIS-2 satellite during low solar activity conditions are compared to those modeled by IRI. We take the quantitative parameter epsilon to measure the deviation of the model from the observed profiles. The results showed that the IRI overestimation of the topside profile is higher for low dip latitudes. The dispersion of the epsilon values is from 40 to 140%, more in equinoctial months and some lower for Winter. The best modeling is about 20% to 40% in middle and high latitudes of the North Hemisphere.