Articles | Volume 34, issue 9
Ann. Geophys., 34, 751–758, 2016
Ann. Geophys., 34, 751–758, 2016

Regular paper 13 Sep 2016

Regular paper | 13 Sep 2016

An evaluation of International Reference Ionosphere electron density in the polar cap and cusp using EISCAT Svalbard radar measurements

Lindis Merete Bjoland et al.

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​The international reference ionosphere (IRI) model is a widely used model of the ionosphere. We compared this model with 16 years of radar measurements of electron density from Svalbard at altitudes between 200 and 500 km. Our results show that the model is biased towards an underestimation of the electron density in the high-latitude ionosphere and that this underestimation is most severe at nighttime. The model performs best at altitudes around the peak height of the electron density.​